-OR / -OUR Spelling Variants

412 total entries across 3 section(s)

Both -OR and -OUR Valid (44 entries)

FRONT	OR FORM	BACK	OUR FORM	DEFINITION
H	ARBOR	S	ARBOUR	[n. -ES] · a tree / ----- [n. -S] · a shady garden shelter / [x] { arbor arbour § arbores arbors arbours § arboured }
—	ARDOR	S	ARDOUR	[n. -S] · intensity of emotion / [x] { ardency ardor ardour § ardencies ardors ardours }
—	ARMOR	SY	ARMOUR	[v. -ED, -ING, -S] · to furnish with armor / [x] { armor armoring armour armouring § armors armours § armor armored armoring armors armour armoured armouring armours § armored armoured }
—	COLOR	S	COLOUR	[v. -ED°, -ING°, -S] · to give color to / [x] { color colour coloured § colors coloureds colours § color colored coloring colors colour coloured colouring colours § color colour coloured }
—	DOLOR	S	DOLOUR	[n. -S] · grief / [x] { dolor dolour § dolors dolours }
—	FAVOR	S	FAVOUR	[v. -ED, -ING, -S] · to regard with approval / [x] { favor favoring favour favouring § favors favours § favor favored favoring favors favour favoured favouring favours § favored favoured }
—	HONOR	S	HONOUR	[v. -ED, -ING, -S] · to treat with respect / [x] { honor honour § honors honours § honor honored honoring honors honour honoured honouring honours § honored honors honoured honours § honor honour }
—	HUMOR	S	HUMOUR	[v. -ED, -ING, -S] · to indulge / [x] { humor humour § humors humours § humor humored humoring humors humour humoured humouring humours § humored humoured }
—	LABOR	S	LABOUR	[v. -ED, -ING, -S] · to work / [x] { labor laboring labour labouring § labors labours § labor labored laboring labors labour laboured labouring labours § labored laboring laboured labouring }
—	RIGOR	S	RIGOUR	[n. -S] · strictness or severity / [x] { rigor rigour § rigors rigours }
—	RUMOR	S	RUMOUR	[v. -ED, -ING, -S] · to spread by hearsay / [x] { rumor rumour § rumors rumours § rumor rumored rumoring rumors rumour rumoured rumouring rumours § rumored }
—	SAPOR	S	SAPOUR	[n. -S] · flavor - SAPOROUS [a.] / [x] { sapor sapour § sapors sapours § saporous }
—	SAVOR	SY	SAVOUR	[v. -ED, -ING, -S] · to taste or smell with pleasure / [x] { savor savoring savour savouring § savors savours § savor savored savoring savors savour savoured savouring savours }
—	TABOR	S	TABOUR	[v. -ED, -ING, -S] · to beat on a small drum / [x] { taber tabor tabour § tabers tabors tabours § taber tabered tabering tabers tabor tabored taboring tabors tabour taboured tabouring tabours }
—	TENOR	S	TENOUR	[n. -S] · a high male singing voice / [x] { tenor tenour § tenors tenours § tenor tenour }
—	TUMOR	S	TUMOUR	[n. -S] · an abnormal swelling - TUMORAL TUMOROUS [a.] / [x] { tumor tumour § tumors tumours § tumoral tumorous }
—	VALOR	S	VALOUR	[n. -S] · courage / [x] { valiance valiancy valor valour § valiances valiancies valors valours }
—	VAPOR	SY	VAPOUR	[v. -ED, -ING°, -S] · to emit vapor / [x] { vapor vapour vapouring § vapors vapourings vapours § vapor vapored vaporing vapors vapour vapoured vapouring vapours § vapored vapoured }
—	VIGOR	S	VIGOUR	[n. -S] · active strength or force / [x] { vigor vigour § vigors vigours }
—	CANDOR	S	CANDOUR	[n. -S] · frankness; sincerity / [x] { candor candour § candors candours }
—	CLAMOR	S	CLAMOUR	[v. -ED, -ING, -S] · to make loud outcries / [x] { clamor clamoring clamour clamouring § clamors clamours § clamor clamored clamoring clamors clamour clamoured clamouring clamours }
—	ENAMOR	S	ENAMOUR	[v. -ED, -ING, -S] · to inspire with love / [x] { enamor enamored enamoring enamors enamour enamoured enamouring enamours § enamored enamoured }
—	FERVOR	S	FERVOUR	[n. -S] · great warmth or intensity / [x] { fervency fervor fervour § fervencies fervors fervours }
—	FLAVOR	SY	FLAVOUR	[v. -ED, -ING°, -S] · to give flavor to / [x] { flavor flavour § flavors flavours § flavor flavored flavoring flavors flavour flavoured flavouring flavours § flavored flavoured }
—	GLAMOR	S	GLAMOUR	[n. -S] · alluring attractiveness / [x] { glamor glamour § glamors glamours § glamor glamors glamour glamoured glamouring glamours }
—	HARBOR	S	HARBOUR	[v. -ED, -ING, -S] · to shelter / [x] { harbor harbour § harbors harbours § harbor harbored harboring harbors harbour harboured harbouring harbours § harboured }
—	PARLOR	S	PARLOUR	[n. -S] · a room for the entertainment of visitors / [x] { parlor parlour § parlors parlours }
—	RANCOR	S	RANCOUR	[n. -S] · bitter and vindictive enmity - RANCORED [a.] / [x] { rancor rancour § rancors rancours § rancor rancored rancors rancour rancoured rancours }
—	SUCCOR	SY	SUCCOUR	[v. -ED, -ING, -S] · to go to the aid of / [x] { succor succour § succors succours § succor succored succoring succors succour succoured succouring succours }
—	BELABOR	S	BELABOUR	[v. -ED, -ING, -S] · to discuss for an absurd amount of time / [x] { belabor belabored belaboring belabors belabour belaboured belabouring belabours }
—	BICOLOR	S	BICOLOUR	[n. -S] · something having two colors / [x] { bicolor bicolour § bicolors bicolours § bicolor bicolour }
—	CLANGOR	S	CLANGOUR	[v. -ED, -ING, -S] · to clang repeatedly / [x] { clangor clangour § clangors clangours § clangor clangored clangoring clangors clangour clangoured clangouring clangours }
—	DECOLOR	S	DECOLOUR	[v. -ED, -ING, -S] · to deprive of color / [x] { decolor decolored decoloring decolors decolour decoloured decolouring decolours § decolored decoloured }
—	RECOLOR	S	RECOLOUR	[v. -ED, -ING, -S] · to color again +
—	VAVASOR	SY	VAVASOUR	[n. -S] · a high-ranking~ vassal / [x] { vavasor vavasour vavassor § vavasors vavasours vavassors }
—	BEGLAMOR	S	BEGLAMOUR	[v. -ED, -ING, -S] · to dazzle with glamor / [x] { beglamor beglamored beglamoring beglamors beglamour beglamoured beglamouring beglamours }
—	DEMEANOR	S	DEMEANOUR	[n. -S] · the manner in which one conducts oneself / [x] { demeanor demeanour § demeanors demeanours }
—	DISCOLOR	S	DISCOLOUR	[v. -ED, -ING, -S] · to alter the color of / [x] { discoloring discolouring § discolor discolored discoloring discolors discolour discoloured discolouring discolours § discolored discoloured }
—	DISFAVOR	S	DISFAVOUR	[v. -ED, -ING, -S] · to regard with disapproval / [x] { disfavor disfavour § disfavors disfavours § disfavor disfavored disfavoring disfavors disfavour disfavoured disfavouring disfavours § disfavored disfavoured }
—	DISHONOR	S	DISHONOUR	[v. -ED, -ING, -S] · to deprive of honor / [x] { dishonor dishonour § dishonors dishonours § dishonor dishonored dishonoring dishonors dishonour dishonoured dishonouring dishonours § dishonored dishonoured }
—	ENDEAVOR	S	ENDEAVOUR	[v. -ED, -ING, -S] · to make an effort / [x] { endeavor endeavoring endeavour endeavouring § endeavors endeavours § endeavor endeavored endeavoring endeavors endeavour endeavoured endeavouring endeavours }
—	NEIGHBOR	S	NEIGHBOUR	[v. -ED, -ING, -S] · to live close to / [x] { neighbor neighbored neighbour neighboured § neighbors neighbours § neighbor neighbored neighboring neighbors neighbour neighboured neighbouring neighbours § neighboring neighbouring }
—	SPLENDOR	S	SPLENDOUR	[n. -S] · magnificence / [x] { splendor splendour § splendors splendours }
—	TRICOLOR	S	TRICOLOUR	[n. -S] · a flag having three colors / [x] { tricolor tricolour § tricolors tricolours § tricolor tricolour }

-OR Only (no -OUR form) (348 entries)

FRONT	WORD	BACK	DEFINITION
—	ABHOR	S	[v. -HORRED, -HORRING, -HORS] · to loathe
F	ACTOR	S	[n. -S] · a theatrical performer - ACTORISH ACTORLY [a.] (=actorly)
—	ALGOR	S	[n. -S] · coldness
—	BEVOR	S	[n. -S] · a piece of armor for the lower face
—	DECOR	S	[n. -S] · style or mode of decoration
—	DONOR	S	[n. -S] · one that donates / [x] { donator donor § donators donors }
—	EPHOR	IS	[n. -ORS or -ORI] · a magistrate of ancient Greece~ - EPHORAL [a.]
T	ERROR	S	[n. -S] · a mistake
—	FETOR	S	[n. -S] · an offensive odor / [x] { fetor foetor § fetors foetors }
—	FUROR	ES	[n. -S] · an uproar / [x] { furor furore § furores furors }
—	GATOR	S	[n. -S] · an alligator / [x] { alligator gater gator § alligators gaters gators § alligator alligators § alligator }
—	ICHOR	S	[n. -S] · a watery discharge from a wound - ICHOROUS [a.]
—	JUROR	S	[n. -S] · a member of a jury
—	MAJOR	S	[v. -ED, -ING, -S] · to pursue a specific principal course of study / [x] { mae mair major mar mare mere moor more § maes mairs mores § more mores § mair major mar mare mere mo more § mair major mar mare mere mo more }
—	MANOR	S	[n. -S] · a landed estate or territorial unit - MANORIAL [a.]
—	MAYOR	S	[n. -S] · the chief executive official of a city or borough - MAYORAL [a.]
—	MINOR	S	[v. -ED, -ING, -S] · to pursue a specific subordinate course of study
—	MOTOR	S	[v. -ED, -ING°, -S] · to travel by automobile
—	MUCOR	S	[n. -S] · a type of fungus
—	PAYOR	S	[n. -S] · payer / [x] { payer payor § payers payors }
—	RAZOR	S	[v. -ED, -ING, -S] · to shave or cut with a sharp-edged~ instrument
—	ROTOR	S	[n. -S] · a rotating part of a machine
—	SENOR	AS	[n. -S or -ES] · a Spanish~ gentleman
—	SOPOR	S	[n. -S] · an abnormally deep sleep
—	SUDOR	S	[n. -S] · sweat - SUDORAL [a.]
—	TUTOR	S	[v. -ED, -ING, -S] · to instruct privately
—	VISOR	S	[v. -ED, -ING, -S] · to provide with a visor / [x] { visor vizor § visors vizors § visor visored visoring visors vizor vizoring § visored vizored }
—	VIZOR	S	[v. -ED, -ING, -S] · to visor / [x] { visor vizor § visors vizors § visor visored visoring visors vizor vizoring § visored vizored }
—	ABATOR	S	[n. -S] · one that unlawfully seizes an inheritance
—	ANCHOR	S	[v. -ED, -ING, -S] · to secure by means of an anchor
—	AUTHOR	S	[v. -ED, -ING°, -S] · to write
—	BAILOR	S	[n. -S] · a person who bails property to another / [x] { bailer bailor § bailers bailors }
A	BETTOR	S	[n. -S] · one that bets
—	CANTOR	S	[n. -S] · a religious singer
—	CAPTOR	S	[n. -S] · one who takes or holds a captive
—	CASTOR	S	[n. -S] · caster / [x] { caster castor § casters castors § caster castered casters castor }
—	CENSOR	S	[v. -ED, -ING, -S] · to delete an objectionable word or passage
—	CHADOR	S	[n. -DORS or -DRI] · a large shawl / [x] { chadar chador chadri chuddah chuddar chudder § chadars chadors chuddahs chuddars chudders }
—	CONDOR	S	[n. -S or -ES] · a coin of Chile
—	CONNOR	S	[n. -S] · a saltwater fish
—	CURSOR	SY	[n. -S] · a light indicator on a computer display
—	DEBTOR	S	[n. -S] · one who owes something to another
—	DOCTOR	S	[v. -ED, -ING°, -S] · to treat medically - DOCTORLY [a.] (=doctorly) / [x] { doc doctor § docs doctors § doctor doctored doctoring doctors § doctored doctorly § doctorly }
—	EDITOR	S	[n. -S] · one that edits
—	FACTOR	SY	[v. -ED, -ING, -S] · to express as a product of two or more quantities
—	FLEXOR	S	[n. -S] · a muscle that serves to bend a bodily part
—	FOETOR	S	[n. -S] · fetor «an offensive odor» / [x] { fetor foetor § fetors foetors }
—	HECTOR	S	[v. -ED, -ING, -S] · to bully
—	HORROR	S	[n. -S] · a feeling of intense fear or repugnance
—	JAILOR	S	[n. -S] · jailer / [x] { gaoler jailer jailor § gaolers jailers jailors }
—	KRONOR	—	< KRONA, [n. KRONOR] · a monetary unit of Sweden~ / ----- [n. KRONUR] · a monetary unit of Iceland~ / [x] { krona kronur § kronor }
E	LECTOR	S	[n. -S] · a reader of the lessons in a church service
P	LESSOR	S	[n. -S] · one that grants a lease
—	LICTOR	S	[n. -S] · a magistrate's attendant in ancient Rome~
—	MAHZOR	S	[n. -ZORIM or -ZORS] · a Jewish~ prayer book / [x] { machzor mahzor § machzorim machzors mahzorim mahzors }
—	MENTOR	S	[v. -ED, -ING°, -S] · to serve as a friend and teacher to
—	MIRROR	S	[v. -ED, -ING°, -S] · to reflect an image of
—	NESTOR	S	[n. -S] · a wise old man
—	ORATOR	SY	[n. -S] · one that orates «to speak formally»
—	PALLOR	S	[n. -S] · paleness «the quality of being pale» / [x] { paleness pallor § palenesses pallors }
—	PASTOR	S	[v. -ED, -ING, -S] · to serve as the spiritual overseer of
—	PAWNOR	S	[n. -S] · pawner «one that pawns something» / [x] { pawner pawnor § pawners pawnors }
—	PLEXOR	S	[n. -S] · a small, hammer-like~ medical instrument / [x] { plessor plexor § plessors plexors }
—	PRETOR	S	[n. -S] · praetor / [x] { praetor pretor § praetors pretors }
—	RAPTOR	S	[n. -S] · a bird of prey
E	RECTOR	SY	[n. -S] · a clergyman in charge of a parish
—	RHETOR	S	[n. -S] · a teacher of rhetoric
—	SAILOR	S	[n. -S] · a member of a ship's crew - SAILORLY [a.]
—	SALVOR	S	[n. -S] · a salvager / [x] { salvager salvor § salvagers salvors }
—	SARTOR	S	[n. -S] · a tailor
—	SECTOR	S	[v. -ED, -ING, -S] · to divide into sectors
—	SEISOR	S	[n. -S] · seizor «one that takes seizin» / [x] { seisor seizor § seisors seizors }
—	SEIZOR	S	[n. -S] · one that takes seizin / [x] { seisor seizor § seisors seizors }
—	SENHOR	AS	[n. -S or -ES] · a Portuguese~ or Brazilian~ gentleman
—	SENSOR	SY	[n. -S] · a device that receives and responds to a stimulus
—	SIGNOR	AEISY	[n. -GNORI or -GNORS] · an Italian~ title of courtesy for a man / [x] { signior signor signore § signiori signiors signori signors }
—	SORDOR	S	[n. -S] · a sordid state
—	SPINOR	S	[n. -S] · a type of mathematical vector
—	STATOR	S	[n. -S] · the part of a machine about which the rotor revolves
—	STUPOR	S	[n. -S] · a state of reduced sensibility
—	SUITOR	S	[n. -S] · one that is courting a woman
—	TAILOR	S	[v. -ED, -ING°, -S] · to fit with clothes
—	TENSOR	S	[n. -S] · a muscle that stretches a body part
—	TERMOR	S	[n. -S] · one that holds land for a certain number of years
—	TERROR	S	[n. -S] · intense fear
—	TORPOR	S	[n. -S] · mental or physical inactivity
—	TREMOR	S	[v. -ED, -ING, -S] · to undergo a shaking or quivering (=tremored tremoring)
—	TURGOR	S	[n. -S] · the quality or state of being turgid / [x] { turgency turgor § turgencies turgors }
—	TUSSOR	ES	[n. -S] · tussah «an Asian~ silkworm» / [x] { tussah tussar tusseh tusser tussor tussore tussur § tussahs tussars tussehs tussers tussores tussors tussurs }
—	VECTOR	S	[v. -ED, -ING, -S] · to guide in flight by means of radioed directions
—	VENDOR	S	[n. -S] · a seller / [x] { vender vendor § venders vendors § vender vendor vendors }
A	VIATOR	S	[n. -ES or -S] · a traveler
E	VICTOR	SY	[n. -S] · one who defeats an adversary
—	WELDOR	S	[n. -S] · welder / [x] { welder weldor § welders weldors }
—	ABETTOR	S	[n. -S] · one that abets «to encourage and support» / [x] { abetter abettor § abetters abettors }
—	ABLATOR	S	[n. -S] · the heat shield of a space vehicle, which melts or wears away during re-entry into the earth's atmosphere
—	ADAPTOR	S	[n. -S] · adapter / [x] { adapter adaptor § adapters adaptors }
—	ADJUROR	S	[n. -S] · adjurer «one that adjures» / [x] { adjurer adjuror § adjurers adjurors }
—	ADVISOR	SY	[n. -S] · adviser / [x] { adviser advisor § advisers advisors }
—	AERATOR	S	[n. -S] · one that aerates «to supply with air»
—	ALASTOR	S	[n. -S] · an avenging deity in Greek tragedy
—	ALIENOR	S	[n. -S] · one that transfers property / [x] { aliener alienor § alieners alienors }
—	ANAPHOR	AS	[n. -S] · a word or phrase that takes reference from a preceding word or phrase
—	ASSUROR	S	[n. -S] · assurer «one that assures» / [x] { assurer assuror § assurers assurors }
—	AUDITOR	SY	[n. -S] · one that audits
—	AVIATOR	S	[n. -S] · one that aviates «to fly an aircraft»
—	CAMPHOR	S	[n. -S] · a volatile compound
—	CHANTOR	S	[n. -S] · chanter / [x] { chanter chantor chaunter § chanters chantors chaunters }
—	CITATOR	SY	[n. -S] · one that cites
—	COACTOR	S	[n. -S] · a fellow actor in a production
—	CREATOR	S	[n. -S] · one that creates
—	CURATOR	S	[n. -S] · a museum manager
—	DELATOR	S	[n. -S] · one that delates «to accuse»
—	DEVISOR	S	[n. -S] · one who makes a will
—	DILATOR	SY	[n. -S] · one that dilates «to make wider or larger» / [x] { dilatant dilatator dilater dilator § dilatants dilatators dilaters dilators § dilatant }
—	DILUTOR	S	[n. -S] · diluter «one that dilutes» / [x] { diluter dilutor § diluters dilutors }
—	DIVISOR	S	[n. -S] · a number by which a dividend is divided
—	DONATOR	S	[n. -S] · a donor / [x] { donator donor § donators donors }
R	EDUCTOR	S	[n. -S] · one that educes «to draw forth or bring out»
R	EJECTOR	S	[n. -S] · one that ejects
S	ELECTOR	S	[n. -S] · one that elects
—	EMPEROR	S	[n. -S] · the ruler of an empire
—	ENACTOR	SY	[n. -S] · one that enacts
—	EQUATOR	S	[n. -S] · a great circle of spherical celestial bodies
—	ERECTOR	S	[n. -S] · one that erects «to build» / [x] { erecter erector § erecters erectors }
—	EVERTOR	S	[n. -S] · a muscle that turns a part outward
—	EVICTOR	S	[n. -S] · one that evicts «to expel by legal process»
—	EXACTOR	S	[n. -S] · exacter «one that exacts» / [x] { exacter exactor § exacters exactors }
—	EXCITOR	S	[n. -S] · exciter «one that excites» / [x] { exciter excitor § exciters excitors }
—	FEOFFOR	S	[n. -S] · feoffer «one that grants a fief to another» / [x] { feoffer feoffor § feoffers feoffors }
—	FUNCTOR	S	[n. -S] · one that functions
—	GENITOR	S	[n. -S] · a male parent
—	GRANTOR	S	[n. -S] · granter «one that grants» / [x] { granter grantor § granters grantors }
—	GYRATOR	SY	[n. -S] · one that gyrates «to revolve or rotate»
—	HERITOR	S	[n. -S] · one that inherits / [x] { heritor inheritor § heritors inheritors }
—	HUMIDOR	S	[n. -S] · a cigar case
—	IGNITOR	S	[n. -S] · igniter / [x] { igniter ignitor § igniters ignitors }
—	INCISOR	SY	[n. -S] · a cutting tooth
—	ISOCHOR	ES	[n. -S] · isochore «a curve used to show a relationship between pressure and temperature» / [x] { isochor isochore § isochores isochors }
—	JANITOR	S	[n. -S] · a maintenance man
—	LEGATOR	S	[n. -S] · one that legates
E	LEVATOR	S	[n. -ES or -S] · a muscle that raises an organ or part
—	LOCATOR	S	[n. -S] · locater «one that locates» / [x] { locater locator § locaters locators }
—	MACHZOR	S	[n. -ZORIM or -ZORS] · mahzor «a Jewish~ prayer book» / [x] { machzor mahzor § machzorim machzors mahzorim mahzors }
—	MALODOR	S	[n. -S] · an offensive odor
—	MARKHOR	S	[n. -S] · a wild goat / [x] { markhoor markhor § markhoors markhors }
—	MATADOR	S	[n. -S] · the bullfighter who kills the bull in a bullfight
—	MIRADOR	S	[n. -S] · an architectural feature designed to afford an extensive view
—	MONITOR	SY	[v. -ED, -ING°, -S] · to keep track of
—	MUTATOR	S	[n. -S] · one that causes a change in form
—	NEGATOR	SY	[n. -S] · negater «one that negates» / [x] { negater negator § negaters negators }
—	NOTATOR	S	[n. -S] · one that notates «to put into notation»
—	OBLIGOR	S	[n. -S] · one who places himself under a legal obligation
—	OFFEROR	S	[n. -S] · offerer «one that offers» / [x] { offerer offeror § offerers offerors }
—	PARADOR	S	[n. -DORS or -DORES] · an inn in Spain~ (=paradores)
—	PICADOR	S	[n. -ES or -S] · a horseman in a bullfight
—	PLEDGOR	S	[n. -S] · pledger «one that pledges something» / [x] { pledgeor pledger pledgor § pledgeors pledgers pledgors }
—	PLESSOR	S	[n. -S] · plexor «a small, hammer-like~ medical instrument» / [x] { plessor plexor § plessors plexors }
—	PRAETOR	S	[n. -S] · an ancient Roman magistrate / [x] { praetor pretor § praetors pretors }
—	PRESSOR	S	[n. -S] · a substance that raises blood pressure
—	PROCTOR	S	[v. -ED, -ING, -S] · to supervise
—	QUESTOR	S	[n. -S] · quaestor «an ancient Roman magistrate» / [x] { quaestor questor § quaestors questors }
—	QUITTOR	S	[n. -S] · an inflammation of an animal's hoof
—	REACTOR	S	[n. -S] · one that reacts
—	REALTOR	S	[n. -S] · a real estate agent who is a member of the National Association of Realtors -- a collective mark
—	RELATOR	S	[n. -S] · relater «one that relates» / [x] { relater relator § relaters relators }
P	REVISOR	SY	[n. -S] · reviser «one that revises» / [x] { reviser revisor § revisers revisors }
—	ROTATOR	SY	[n. -ES] · a muscle serving to rotate a part of the body / ----- [n. -S] · one that rotates
—	SCISSOR	S	[v. -ED, -ING, -S] · to cut with a two-bladed~ cutting implement
—	SENATOR	S	[n. -S] · a member of a senate
—	SETTLOR	S	[n. -S] · one that makes a legal settlement
—	SPONSOR	S	[v. -ED, -ING, -S] · to make oneself responsible for
—	SQUALOR	S	[n. -S] · the quality or state of being squalid
—	STENTOR	S	[n. -S] · a person having a very loud voice
—	STERTOR	S	[n. -S] · a deep snoring sound
—	STRIDOR	S	[n. -S] · a strident sound
—	TEMBLOR	S	[n. -S or -ES] · an earthquake
—	TRACTOR	S	[n. -S] · a motor vehicle used in farming
—	TRAITOR	S	[n. -S] · one who betrays another
—	TRUSTOR	S	[n. -S] · one that trustees his property
—	TWISTOR	S	[n. -S] · a complex variable in descriptions of space-time~
—	VISITOR	S	[n. -S] · one that visits / [x] { visitant visiter visitor § visitants visiters visitors § visitant }
—	ABDUCTOR	S	[n. -ES or -S] · an abducent muscle
—	ACCENTOR	S	[n. -S] · a songbird
—	ACCEPTOR	S	[n. -S] · accepter «one that accepts» / [x] { accepter acceptor § accepters acceptors }
—	ACTUATOR	S	[n. -S] · one that actuates «to set into action or motion»
—	ADDUCTOR	S	[n. -S] · an adducent muscle
—	ADJUSTOR	S	[n. -S] · adjuster / [x] { adjuster adjustor § adjusters adjustors }
—	ADULATOR	SY	[n. -S] · one that adulates «to praise excessively»
—	AGITATOR	S	[n. -S] · one that agitates «to move with a violent, irregular action»
—	ALACHLOR	S	[n. -S] · an herbicide
—	ANCESTOR	S	[v. -ED, -ING, -S] · to be an ancestor of
—	ANIMATOR	S	[n. -S] · one that animates / [x] { animater animator § animaters animators }
—	APPELLOR	S	[n. -S] · a confessed criminal who accuses an accomplice
—	ARRESTOR	S	[n. -S] · arrester «one that arrests» / [x] { arrester arrestor § arresters arrestors }
—	ASPERSOR	S	[n. -S] · asperser «one that asperses» / [x] { asperser aspersor § aspersers aspersors }
—	ASSENTOR	S	[n. -S] · assenter «one that assents» / [x] { assenter assentor § assenters assentors }
—	ASSERTOR	S	[n. -S] · asserter «one that asserts» / [x] { asserter assertor § asserters assertors }
—	ASSESSOR	S	[n. -S] · one that assesses
—	ASSIGNOR	S	[n. -S] · one who legally transfers property or right
—	ASSISTOR	S	[n. -S] · assister «one that assists» / [x] { assister assistor § assisters assistors }
—	ATTESTOR	S	[n. -S] · attester «one that attests» / [x] { attester attestor § attesters attestors }
N	AVIGATOR	S	[n. -S] · one that navigates aircraft
—	BACHELOR	S	[n. -S] · an unmarried man
—	BARRATOR	S	[n. -S] · one who commits barratry / [x] { barrater barrator barretor § barraters barrators barretors }
—	BARRETOR	S	[n. -S] · barrator «one who commits barratry» / [x] { barrater barrator barretor § barraters barrators barretors }
—	BECLAMOR	S	[v. -ED, -ING, -S] · to clamor loudly
—	BISECTOR	S	[n. -S] · something that bisects
—	CANEPHOR	S	[n. -S] · a Greek maiden bearing a basket on her head
—	CAVEATOR	S	[n. -S] · one that files a caveat
—	CHELATOR	S	[n. -S] · one that chelates «to combine a metal ion with a compound»
—	COANCHOR	S	[v. -ED, -ING, -S] · to present televised news reports jointly
—	COAUTHOR	S	[v. -ED, -ING, -S] · to write together
—	CODEBTOR	S	[n. -S] · one that shares a debt
—	COEDITOR	S	[n. -S] · one that coedits «to edit with another person»
—	COENAMOR	S	[v. -ED, -ING, -S] · to inflame with mutual love
—	COFACTOR	S	[n. -S] · a coenzyme
—	COLESSOR	S	[n. -S] · a joint lessor
—	COLLATOR	S	[n. -S] · one that collates «to compare critically»
—	CONJUROR	S	[n. -S] · conjurer / [x] { conjurer conjuror § conjurers conjurors }
—	CONVENOR	S	[n. -S] · convener / [x] { convener convenor § conveners convenors }
—	CONVEYOR	S	[n. -S] · conveyer / [x] { conveyer conveyor § conveyers conveyors }
—	COPASTOR	S	[n. -S] · one that shares the duties of a pastor
—	CORRIDOR	S	[n. -S] · a narrow hallway
—	CREDITOR	S	[n. -S] · one to whom money is owed
—	CREMATOR	SY	[n. -S] · one that cremates «to reduce to ashes by burning»
—	CUSPIDOR	S	[n. -S] · a spittoon
—	DEFECTOR	S	[n. -S] · one that defects
—	DEFLATOR	S	[n. -S] · one that deflates «to release the air or gas from» / [x] { deflater deflator § deflaters deflators }
—	DEPICTOR	S	[n. -S] · depicter «one that depicts» / [x] { depicter depictor § depicters depictors }
—	DETECTOR	S	[n. -S] · one that detects / [x] { detecter detector § detecters detectors }
—	DEVIATOR	SY	[n. -S] · one that deviates
—	DICTATOR	S	[n. -S] · one that dictates
—	DIFFUSOR	S	[n. -S] · diffuser / [x] { diffuser diffusor § diffusers diffusors § diffuser }
—	DIGESTOR	S	[n. -S] · digester / [x] { digester digestor § digesters digestors }
—	DIRECTOR	SY	[n. -S] · one that directs
—	EDUCATOR	SY	[n. -S] · one that educates
—	EFFECTOR	S	[n. -S] · a bodily organ that responds to a nerve impulse / [x] { effecter effector § effecters effectors }
—	ELEVATOR	S	[n. -S] · one that elevates
—	ELICITOR	S	[n. -S] · one that elicits
—	EMANATOR	S	[n. -S] · one that emanates
—	EMULATOR	S	[n. -S] · one that emulates
—	ENDORSOR	S	[n. -S] · endorser / [x] { endorser endorsor indorser indorsor § endorsers endorsors indorsers indorsors }
D	EPILATOR	S	[n. -S] · an agent for removing hair / [x] { depilator depilatory epilator § depilatories depilators epilators § depilatory }
—	EVOCATOR	S	[n. -S] · one that evokes
—	EXECUTOR	SY	[n. -S] · one that executes / [x] { executer executor § executers executors }
—	EXPANDOR	S	[n. -S] · a type of transducer
—	EXPIATOR	SY	[n. -S] · one that expiates «to atone for»
—	EXTENSOR	S	[n. -S] · a muscle that extends a limb
—	FELLATOR	S	[n. -S] · one that fellates «to perform fellatio»
—	GOVERNOR	S	[n. -S] · one that governs
—	HYDRATOR	S	[n. -S] · one that hydrates
—	IDOLATOR	S	[n. -S] · idolater «one that worships idols» / [x] { idolater idolator § idolaters idolators }
—	IMITATOR	S	[n. -S] · one that imitates
—	IMPACTOR	S	[n. -S] · impacter «one that impacts» / [x] { impacter impactor § impacters impactors }
—	IMPELLOR	S	[n. -S] · impeller / [x] { impeller impellor § impellers impellors }
—	IMPOSTOR	S	[n. -S] · one that poses as another for deceptive purposes / [x] { imposter impostor § imposters impostors }
—	INCEPTOR	S	[n. -S] · one that incepts «to take in»
—	INDENTOR	S	[n. -S] · indenter «one that indents» / [x] { indenter indentor § indenters indentors }
—	INDICTOR	S	[n. -S] · indicter «one that indicts» / [x] { indicter indictor § indicters indictors }
—	INDORSOR	S	[n. -S] · endorsor «endorser» / [x] { endorser endorsor indorser indorsor § endorsers endorsors indorsers indorsors }
—	INDUCTOR	S	[n. -S] · one that inducts «to bring into military service»
—	INFECTOR	S	[n. -S] · infecter «one that infects» / [x] { infecter infector § infecters infectors }
—	INFLATOR	S	[n. -S] · inflater «one that inflates» / [x] { inflater inflator § inflaters inflators }
—	INJECTOR	S	[n. -S] · one that injects
—	INVENTOR	SY	[n. -S] · one that invents / [x] { inventer inventor § inventers inventors }
—	INVERTOR	S	[n. -S] · a type of electrical device
—	INVESTOR	S	[n. -S] · one that invests
—	IODOPHOR	S	[n. -S] · an iodine compound
—	ISOLATOR	S	[n. -S] · one that isolates
—	KOMONDOR	S	[n. -DORS, -DOROK, or -DOROCK] · a large, shaggy-coated~ dog / [x] { komondor § komondorock komondorok komondors }
—	LABRADOR	S	[n. -S] · a hunting dog
—	LAUDATOR	SY	[n. -S] · a lauder / [x] { laudator lauder § laudators lauders }
—	LICENSOR	S	[n. -S] · licenser «one that licenses» / [x] { licencer licenser licensor § licencers licensers licensors }
—	MANDATOR	SY	[n. -S] · one that mandates
—	MEDIATOR	SY	[n. -S] · one that mediates
—	METAPHOR	S	[n. -S] · a type of figure of speech
—	MIGRATOR	SY	[n. -S] · a migrant / [x] { migrant migrator § migrants migrators § migrant }
—	MISCOLOR	S	[v. -ED, -ING, -S] · to color incorrectly
—	MISLABOR	S	[v. -ED, -ING, -S] · to labor badly
—	MISTUTOR	S	[v. -ED, -ING, -S] · to instruct or bring up badly
—	NARRATOR	S	[n. -S] · one that narrates / [x] { narrater narrator § narraters narrators }
—	NITRATOR	S	[n. -S] · one that nitrates
—	NONACTOR	S	[n. -S] · a person who is not an actor
—	NONCOLOR	S	[n. -S] · a lack of color
—	NONJUROR	S	[n. -S] · one who refuses to take a required oath
—	NONLABOR	—	[a.] · not pertaining to labor
—	NONMAJOR	S	[n. -S] · a student who is not majoring in a specified subject
—	OBJECTOR	S	[n. -S] · one that objects
—	OBSESSOR	S	[n. -S] · something that obsesses
—	OBVIATOR	S	[n. -S] · one that obviates «to prevent or eliminate by effective measures»
—	OPERATOR	S	[n. -S] · a symbol that represents a mathematical function
—	OUTHUMOR	S	[v. -ED, -ING, -S] · to surpass in humoring «to indulge»
—	OUTSAVOR	S	[v. -ED, -ING, -S] · to surpass in a distinctive taste or smell
—	PALPATOR	SY	[n. -S] · one that palpates «to examine by touch»
—	PARACHOR	S	[n. -S] · a mathematical constant that relates molecular volume to surface tension
—	PATENTOR	S	[n. -S] · one that grants a patent
—	PHOSPHOR	EIS	[n. -S] · a substance that will emit light when exposed to radiation / [x] { phosphor phosphore phosphorus § phosphores phosphori phosphors phosphoruses }
—	PISCATOR	SY	[n. -S] · a fisherman
—	PREDATOR	SY	[n. -S] · one that plunders «to rob of goods by force»
—	PREMOTOR	—	[a.] · pertaining to a part of the frontal lobe of the brain
—	PREVISOR	S	[n. -S] · one that previses «to foresee»
—	PROLABOR	—	[a.] · favoring organized labor
—	PROMISOR	S	[n. -S] · one that promises / [x] { promiser promisor § promisers promisors }
—	PROMOTOR	S	[n. -S] · a chemical additive that increases the activity of a catalyst
—	PRONATOR	S	[n. -S or -ES] · a forearm or forelimb muscle
—	PULMOTOR	S	[n. -S] · a respiratory device
—	PULSATOR	SY	[n. -S] · something that pulsates
—	PURVEYOR	S	[n. -S] · one that purveys «to supply»
—	QUAESTOR	S	[n. -S] · an ancient Roman magistrate / [x] { quaestor questor § quaestors questors }
—	RADIATOR	S	[n. -S] · a heating device
P	RECENSOR	S	[v. -ED, -ING, -S] · to censor again +
P	RECEPTOR	S	[n. -S] · a nerve ending specialized to receive stimuli
—	REDACTOR	S	[n. -S] · one that redacts «to prepare for publication»
—	REDUCTOR	S	[n. -S] · an apparatus for the reduction of metallic ions in solution
—	REJECTOR	S	[n. -S] · rejecter «one that rejects» / [x] { rejecter rejector § rejecters rejectors }
—	RELEASOR	S	[n. -S] · releaser «one that releases» / [x] { releaser releasor § releasers releasors }
—	REMITTOR	S	[n. -S] · remitter «one that remits» / [x] { remitter remittor § remitters remittors }
—	RESISTOR	S	[n. -S] · a device in an electric circuit
—	RETAILOR	S	[v. -ED, -ING, -S] · to tailor again +
—	SCULPTOR	S	[n. -S] · one that sculpts
—	SECRETOR	SY	[n. -S] · one that secretes / [x] { secret secreter secretor § secretors secrets § secret secreted secretest secreting secrets § secret secrete secretest }
—	SELECTOR	S	[n. -S] · one that selects
—	SERVITOR	S	[n. -S] · a male servant
—	STRESSOR	S	[n. -S] · a type of stimulus
—	SURVEYOR	S	[n. -S] · one that surveys land
—	SURVIVOR	S	[n. -S] · one that survives / [x] { surviver survivor § survivers survivors }
—	TESTATOR	S	[n. -S] · one that makes a will / [x] { testate testator § testates testators § testate }
—	THEREFOR	E	[b.] · for that / [x] { therefor therefore }
—	THRUSTOR	S	[n. -S] · thruster / [x] { thruster thrustor § thrusters thrustors }
—	TITRATOR	S	[n. -S] · one that titrates «to determine the strength of a solution by adding a reagent until a desired reaction occurs»
—	TOREADOR	S	[n. -S] · a bullfighter
—	TRADITOR	—	[n. -ES] · a traitor among the early Christians~
—	TREMBLOR	S	[n. -S] · an earth tremor
—	TRIACTOR	S	[n. -S] · a trifecta / [x] { triactor trifecta § triactors trifectas }
—	TRIMOTOR	S	[n. -S] · an airplane powered by three engines
—	UNANCHOR	S	[v. -ED, -ING, -S] · to loosen from an anchor
—	UNICOLOR	—	[a.] · of one color
—	URINATOR	S	[n. -S] · one that urinates «to discharge urine»
—	UTILIDOR	S	[n. -S] · an insulated system of pipes for use in arctic regions
E	VALUATOR	S	[n. -S] · one that valuates «to appraise»
—	VARACTOR	S	[n. -S] · a capacitor with variable capacitance
—	VARISTOR	S	[n. -S] · a type of electrical resistor
—	VAVASSOR	S	[n. -S] · vavasor «a high-ranking~ vassal» / [x] { vavasor vavasour vavassor § vavasors vavasours vavassors }
—	VERDEROR	S	[n. -S] · verderer «an officer in charge of the royal forests of England~» / [x] { verderer verderor § verderers verderors }
—	VIBRATOR	SY	[n. -S] · something that vibrates
—	VIOLATOR	S	[n. -S] · one that violates / [x] { violater violator § violaters violators }
—	VITIATOR	S	[n. -S] · one that vitiates «to impair the value or quality of»

-OUR Only (no -OR form) (20 entries)

FRONT	WORD	BACK	DEFINITION
—	DETOUR	S	[v. -ED, -ING, -S] · to take an indirect route
—	DEVOUR	S	[v. -ED, -ING, -S] · to eat up voraciously
—	DYVOUR	S	[n. -S] · one who is bankrupt
—	INPOUR	S	[v. -ED, -ING°, -S] · to pour in
—	REPOUR	S	[v. -ED, -ING, -S] · to pour again +
—	VELOUR	S	[n. -S] · a fabric resembling velvet
—	BESCOUR	S	[v. -ED, -ING, -S] · to scour thoroughly
—	CONTOUR	S	[v. -ED, -ING, -S] · to make the outline of
—	ECOTOUR	S	[v. -ED, -ING, -S] · to tour a natural habitat (=ecotoured ecotouring)
—	FAITOUR	S	[n. -S] · an impostor
—	OUTPOUR	S	[v. -ED, -ING°, -S] · to pour out
—	PANDOUR	S	[n. -S] · a marauding soldier / [x] { pandoor pandour § pandoors pandours }
—	PARKOUR	S	[n. -S] · the sport of traversing environmental obstacles by running, climbing, or leaping
—	SANTOUR	S	[n. -S] · santir «a Persian~ dulcimer» / [x] { santir santoor santour santur § santirs santoors santours santurs }
—	TAMBOUR	AS	[v. -ED, -ING, -S] · to embroider on a round wooden frame
—	DOWNPOUR	S	[n. -S] · a heavy rain
—	PARAMOUR	S	[n. -S] · an illicit lover
—	TRESSOUR	S	[n. -S] · tressure «a type of heraldic design» / [x] { tressour tressure § tressours tressures }
—	WATTHOUR	S	[n. -S] · a unit of energy
—	WORKHOUR	S	[n. -S] · any of the hours of the day during which work is done