Unusual and Irregular Plurals — Words Only

Nouns whose plural is formed in an unexpected way — Latin -I, French -X, Latin -AE and -A, Hebrew -IM, and suppletive or -VES/-EN forms

← Full list with definitions

2,596 words across 10 section(s)

Pluralize Only with '-I' (Latin -I)

BAN LEU ARCO BANS KORE LATS LATU LOCA NAOS ASCUS ASKOS CAMPO CONUS DOLCE GARDA
GYRUS HERMA HILUS LOCUS LOGOS MAGUS MODUS MOIRA NEVUS NODUS NOMOS PETTO PILUS
PIROG PUTTO RAMUS SCUDO SOLDO SORUS STELA TELOS TOPOS UNCUS VAGUS ACARUS ACINUS
AMICUS AUREUS BANNED CAMPOS CARPUS CERCAL CERCUS CESTOS CLAVUS COCCUS EXODOS
FUNDUS HERMAE KOUROS MEDIUS MYTHOS NAEVUS OBELUS OBOLUS OCULUS PALPUS PAPPUS
PILEUS PITHOS RECTUS SIGLOS STELAE SULCAL SULCUS TARSUS THOLOS TOPHUS TRAGUS
VILLUS XYSTOS XYSTUS ACULEUS ALUMNUS AMORINO BANNING CANTHAL CANTHUS CLYPEAL
CLYPEUS COLONUS CONGIUS EMBOLUS EPHEBOS EPHEBUS EPINAOS EURIPUS FAMULUS FLOCCUS
FRACTUS FUMULUS GLUTEUS HAMULUS HUMERUS LIMULUS LOCULUS MALLEUS MODULUS OCELLUS
PALAZZO PARODOS PERITUS PIROGEN PLUTEUS PORCINO RILIEVO SCYPHUS SECONDO SIGNORE
SILENUS SKYPHOS SOLIDUS SORDINO STELENE THYRSUS TIMPANO TYMPANO UNCINUS ZINGANO
ZINGARO ABOMASUS ALVEOLUS ANESTRUS APICULUS BACCHIUS BACILLUS BISCOTTO BRONCHUS
CADUCEAN CADUCEUS CALATHOS CALATHUS CHIASMUS CLYPEATE COENURUS CONFETTO CROSTINO
DACTYLUS DENARIUS ELENCHUS EMERITUS EPIGONUS GRAFFITO HAMULATE HERMAEAN KAZACHOK
LAPILLUS LECYTHUS LEKYTHOS LEKYTHUS MAMMATUS MARCHESE MODIOLUS NAUPLIAL NAUPLIUS
NOTTURNO NUCELLUS OMPHALOS PIROZHOK PRINCIPE PULVINUS RHONCHAL RHONCHUS SACCULUS
SASTRUGA SCALENUS SCUNGILE SENARIUS SPLENIUS STIMULUS STOTINKA TENORINO THALAMUS
THROMBUS ZASTRUGA ACERVULUS CALCANEUS CALYCULUS COTHURNUS ESOPHAGUS FLOCCULUS
FUNICULUS LAZZARONE LEMNISCUS LITERATUS MALLEOLUS NUCLEOLUS PAPARAZZO PIZZICATO
POPLITEAL POPLITEUS PULVILLUS QUADRATUS RETIARIUS RICERCARE SARTORIUS SEXTARIUS
SGRAFFITO STROBILUS TROCHILUS UTRICULUS ANTITRAGUS ASTRAGALUS CORYPHAEUS
DELTOIDEUS EPICANTHUS FASCICULUS GLOMERULUS GONOCOCCUS HOMUNCULUS OESOPHAGUS
PENTIMENTO PORTAMENTO PROPOSITUS STROPHULUS ALTOCUMULUS ALTOSTRATUS ASPERGILLUS
BORBORYGMUS CANALICULUS CARABINIERE COGNOSCENTE CONDOTTIERE CYSTICERCUS
DIPLOCOCCUS HIPPOCAMPUS MESONEPHROS METANEPHROS MICROCOCCUS MICROVILLUS
RHOMBOIDEUS SEPTENARIUS VENTRICULUS CIRROCUMULUS CIRROSTRATUS CRYPTOCOCCUS
ECHINOCOCCUS ENTEROCOCCUS HYPOTHALAMUS NIMBOSTRATUS PNEUMOCOCCUS ELECTROPHORUS
GASTROCNEMIUS LACTOBACILLUS LEPTOCEPHALUS MENINGOCOCCUS STRATOCUMULUS
STREPTOCOCCUS ANTHROPOPHAGUS PROVENTRICULUS STAPHYLOCOCCUS PITHECANTHROPUS
STREPTOBACILLUS TARSOMETATARSUS

Pluralize with '-I' or '-S'/'-ES' (Mixed Latin/English)

DUO MIR PUL BLIN DUCE DUOS MIRS PULS SOLO AGAPE BASSO BLINY BRAVO BUFFO CELLO
DEMOS DUCES DUOMO EPHOR FOCUS FUCUS KROON KULAK LIBER MOMUS NIDUS OVOLO PADRE
PRIMO RUBEL SEGNO SOLOS TEMPO TONDO TORSO TORUS ZORIS ABACUS AGAPAE AGAPES
ARIOSO BANDIT BASSOS BLINIS BRAVOS BUFFOS BYSSAL BYSSUS CACTUS CASINO CELLOS
CHADOR CIRRUS CROCUS CULTUS DENARS DISCUS DUELLO DUOMOS EPHORS FIASCO FUNGUS
GELATO GENIUS IAMBUS KROONS KULAKS LIBERS LIMBUS NIELLO NIMBUS OBLAST ONAGER
OVOLOS PADRES PANINO PRIMOS RADIUS RUBATO RUBELS SANTIM SEGNOS SIGNOR SMALTO
SOLEUS SOLOED SOLOES STYLUS TEMPOS TENUTO THYMUS TONDOS TORSOS URAEUS UTERUS
ANIMATO ANNULUS ARIOSOS BAMBINO BANDITS BOLETUS BRAVOED BRAVOES CALAMUS CANZONE
CAROLUS CASINOS CAVETTO CEMBALO CHADARS CHADORS COLOBUS CUBITUS CUMULUS DALASIS
DEMOSES DRACHMA DUELLOS DUUMVIR ECHINUS EPHORAL FIASCOS FOCUSED FOCUSES FUCUSES
GELATOS HETAIRA INCUBUS ISTHMUS MAESTRO MAFIOSO MOMUSES NIDUSES NIELLOS NUCLEUS
OBLASTS OCTOPUS ONAGERS PADRONE PAESANO PANINIS PAPYRAL PAPYRUS PHALLUS POLYNYA
POLYPUS PRIAPUS PYLORUS REGULUS RHOMBUS RIPIENO RUBATOS SANTIMS SANTIMU SCHERZO
SENITIS SIGNIOR SIGNORS SMALTOS SOLOING SOMONIS SOPRANO STRATUS STRETTO TANDOOR
TARTUFO TENUTOS THALLUS TORUSES TUMULUS UTERINE ZEPPOLE ABACUSES ACANTHUS
AMORETTO ANIMATOS BAMBINOS BRAVOING BYSSUSES CACTUSES CALCULUS CANZONES CASTRATO
CAVETTOS CEMBALOS CHORAGUS CHOREGUS CHORIAMB CICERONE CICISBEO CIRRUSES COLOSSUS
CONCERTO CORNETTO CROCUSES CULTUSES DECEMVIR DISCUSES DRACHMAE DRACHMAS DUUMVIRS
EREMURUS FIASCOES FOCUSING FOCUSSED FOCUSSES FORZANDO FUNGUSES GENIUSES HETAIRAS
IAMBUSES INTAGLIO KIELBASA KIELBASY LIBRETTO LIMBUSES MAESTROS MAFIOSOS MENISCAL
MENISCUS NAUTILUS NIELLOED NIMBUSED NIMBUSES OBLIGATO OSTINATO PADRONES PAESANOS
PANDANUS PAPYRINE PECORINO PENSIONE PLATYPUS POLYNYAS RADIUSED RADIUSES REGULINE
RHIZOPUS RIPIENOS SCAMPIES SCHERZOS SCIRRHUS SIGNIORS SOLEUSES SOPRANOS STACCATO
STRETTOS STYLUSES SUCCUBUS SYLLABUS TANDOORS TARTUFOS TERMINUS TERZETTO THYMUSES
TRIUMVIR URAEUSES UTERUSES VIRTUOSO VITELLUS VOLVULUS ZECCHINO ZEPPOLES
AMORETTOS AMPHIOXUS ANNULUSES BOLETUSES BOLSHEVIK CALAMUSES CAMPANILE CAPRICCIO
CAROLUSES CASTRATOS CHORIAMBS CICERONES CICISBEOS COLOBUSES CONCEPTUS CONCERTOS
CONTRALTO CORNETTOS CRESCENDO CUBITUSES CUMULUSES DECEMVIRS ECHINUSES FOCUSSING
FORZANDOS GLADIOLUS GLISSANDO IGNORAMUS INCUBUSES INTAGLIOS ISTHMUSES KIELBASAS
LIBRETTOS MONSIGNOR NARCISSUS NIELLOING NUCLEUSES OBBLIGATO OBLIGATOS OCTOPODES
OCTOPUSES OSTINATOS PAPYRUSES PASTICCIO PASTORALE PECORINOS PEMPHIGUS PENSIONES
PHALLUSES POLYPUSES PRIAPUSES PRONEPHRA PYLORUSES RADIUSING REGULUSES RHOMBUSES
SFORZANDO SOLFEGGIO STACCATOS STRATUSES TERZETTOS THALLUSES THESAURUS TRAPEZIUS
TRIUMVIRS TUMULUSES UMBILICUS VAPORETTO VIRTUOSOS ZECCHINOS ACANTHUSES
BOLSHEVIKS CALCULUSES CAMPANILES CANTATRICE CAPRICCIOS CATHOLICOS CHORAGUSES
CHOREGUSES COLOSSUSES CONTRALTOS CRESCENDOS DILETTANTE EREMURUSES EUCALYPTUS
FORTISSIMO GLISSANDOS INTAGLIOED INTAGLIOES INTERMEZZO KOLKHOZNIK MENISCUSES
METACARPUS METATARSUS MONSIGNORS NAUTILUSES NECROPOLES NECROPOLIS OBBLIGATOS
PANDANUSES PASTICCIOS PASTORALES PHOSPHORUS PIANISSIMO PLATYPUSES POLYANTHUS
PRONEPHROS PRONUCLEUS PROSCIUTTO PROTHALLUS RANUNCULUS RECITATIVO RHINOCEROS
RHIZOPUSES RITORNELLO SCARABAEUS SCIRRHUSES SFORZANDOS SOLFEGGIOS SUBNUCLEUS
SUCCUBUSES SYLLABUSES TERMINUSES VAPORETTOS VITELLUSES VOLVULUSES AMPHIOXUSES
APPARATCHIK CANTATRICES CONCEPTUSES CONVOLVULUS CRESCENDOED CRESCENDOES
DILETTANTES FORTISSIMOS GLADIOLUSES IGNORAMUSES INTAGLIOING INTERMEZZOS
KOLKHOZNIKS NARCISSUSES NECROPOLEIS PEMPHIGUSES PIANISSIMOS PODOPHYLLUM
PRECALCULUS PROSCIUTTOS RECITATIVOS RITORNELLOS SARCOPHAGUS THESAURUSES
TRAPEZIUSES UMBILICUSES VIOLONCELLO APPARATCHIKS CATHOLICOSES CRESCENDOING
CUMULONIMBUS DIVERTIMENTO EUCALYPTUSES HIPPOPOTAMUS METACARPUSES METATARSUSES
NECROPOLISES PHOSPHORUSES PODOPHYLLUMS POLYANTHUSES PRONEPHROSES PRONUCLEUSES
PROTHALLUSES RANUNCULUSES RHINOCEROSES SCARABAEUSES SUBNUCLEUSES VIOLONCELLOS
CONVERSAZIONE CONVOLVULUSES DIVERTIMENTOS IMPROVISATORE MICROFUNGUSES
PRECALCULUSES SARCOPHAGUSES SUPERVIRTUOSO CONVERSAZIONES CUMULONIMBUSES
HIPPOPOTAMUSES IMPROVISATORES MACRONUCLEUSES MICRONUCLEUSES SUPERVIRTUOSOS

French Words with '-X' Plurals (-EAU → -EAUX)

EAU JEU BEAU SOCK ADIEU BEAUS BIJOU NOYAU SOCKS ADIEUS BATEAU BIJOUS BUREAU
COTEAU GATEAU MILIEU RESEAU SOCKED BANDEAU BATTEAU BEAUISH BUREAUS CHAMOIS
CHAPEAU CHATEAU COTEAUS COUTEAU FABLIAU GATEAUS JAMBEAU MANTEAU MILIEUS MORCEAU
PLATEAU PURLIEU RESEAUS RONDEAU ROULEAU SOCKING TABLEAU TONNEAU TRUMEAU ABOIDEAU
ABOITEAU BANDEAUS CHAPEAUS CHATEAUS FLAMBEAU JAMBEAUS MANTEAUS PLATEAUS PRIEDIEU
PURLIEUS ROULEAUS TABLEAUS TONNEAUS ABOIDEAUS ABOITEAUS BORDEREAU CHAMOISED
CHAMOISES FLAMBEAUS GASPEREAU GRAVLAXES PLATEAUED PRIEDIEUS SUBBUREAU TROUSSEAU
CHAMOISING PLATEAUING SUBBUREAUS TROUSSEAUS PORTMANTEAU PORTMANTEAUS

Latin '-X' → '-CES' Plurals (APEX → APICES)

LUX VOX APEX CALX CRUX FALX IBEX BORAX CALIX CALYX CAREX CIMEX CODEX CULEX CYLIX
HELIX HYRAX INDEX LATEX MUREX RADIX VARIX AUSPEX CAUDEX CERVIX CORTEX FORNIX
HALLUX MATRIX POLLEX SCOLEX SPADIX THORAX VERTEX VORTEX ANTHRAX ARUSPEX EDITRIX
ORATRIX RECTRIX SIMPLEX TECTRIX TORTRIX ANTHELIX APPENDIX AVIATRIX CICATRIX
EPICALYX HARUSPEX HERETRIX HERITRIX MICROLUX MILLILUX PONTIFEX SUBINDEX TRACTRIX
ANTIHELIX BISECTRIX DIRECTRIX EXECUTRIX FELLATRIX MEDIATRIX NEOCORTEX PROTHORAX
SUBCORTEX TESTATRIX COADJUTRIX DOMINATRIX GENERATRIX INHERITRIX MESOTHORAX
METATHORAX SUPERHELIX HYDROTHORAX PNEUMOTHORAX CEPHALOTHORAX ADMINISTRATRIX

Latin Feminine Plurals (-A → -AE)

ALA ALGA ANSA ANTA AQUA AURA COMA COXA CYMA MINA MORA NOVA PARA PUPA RUGA SETA
STOA TELA TOGA TUBA ULNA URSA VENA VITA ZOEA ZONA AGORA ALULA AMEBA AORTA BACCA
BULLA BURSA CELLA CHELA CNIDA COSTA COTTA CULPA CURIA FACIA FAUNA FERIA FLORA
FOVEA GALEA GEMMA GLEBA GUTTA HYDRA HYPHA LAMIA LARVA LAURA LIBRA LYTTA MAMMA
MEDIA MENSA MUSCA NUCHA OCREA PALEA PENNA PINNA PLICA REDIA SALPA SCOPA SILVA
SPICA STRIA SUMMA SYLVA TENIA TERRA TESTA THECA TIBIA UMBRA UNCIA UVULA VILLA
VIRGA VITTA VULVA ABOLLA ALUMNA AMOEBA APHTHA AREOLA ARISTA AURORA AXILLA CAMERA
CANULA CARDIA CARINA CATENA CESURA CHAETA CHOANA CICADA CLOACA CONCHA COPULA
CORONA CRISTA CUPULA EXEDRA EXUVIA FACULA FASCIA FECULA FERULA FIBULA GLOSSA
HERNIA HYDRIA INFULA INSULA INTIMA LACUNA LAMINA LIGULA LINGUA LORICA LUNULA
MACULA MEDUSA MORULA MUCOSA NEBULA NOVENA NYMPHA OCHREA PAPULA PATINA PLEURA
RADULA REGINA RETINA SCLERA SCORIA SEROSA SQUAMA STRUMA SYNURA TAENIA TEGULA
TORULA TUNICA UNGULA VAGINA VESICA VOMICA ZONULA ACANTHA ACICULA ACTINIA AMPHORA
AMPULLA ANCILLA ANTENNA ARMILLA AUREOLA CAESURA CANNULA CHALAZA COCHLEA CYPSELA
DECIDUA ECHIDNA EMERITA EULOGIA EXHEDRA FILARIA FIMBRIA FISTULA FORMULA FOVEOLA
FURCULA GINGIVA GRAVIDA HETAERA INERTIA INFAUNA LAMELLA LINGULA LOCUSTA MAMILLA
MAXILLA MEDULLA MICELLA MINUTIA MONILIA NEURULA OOTHECA PAPILLA PATELLA PERSONA
PINNULA PISCINA PLANULA PRECAVA PREPUPA PTERYLA SAPHENA SARCINA SCAPULA SCOPULA
SEQUELA SILIQUA SPICULA SPINULA SPIRULA SQUILLA SUCCUBA TESSERA TRACHEA URETHRA
VALVULA VERRUCA ZOOGLEA ABSCISSA AMYGDALA ANTEFIXA APOLOGIA ASPIRATA AURICULA
AVIFAUNA BALLISTA BASILICA BLASTULA BRANCHIA BRUCELLA CATHEDRA CERCARIA CISTERNA
COMATULA CONFERVA CUTICULA ECCLESIA ENDAMEBA ENTAMEBA EPHEMERA EPIFAUNA FENESTRA
FIBRILLA GASTRULA GLABELLA HEPATICA MAMMILLA MYXAMEBA PALESTRA PALPEBRA PARABOLA
PENUMBRA PETECHIA PLACENTA POSTCAVA PUERPERA QUADRIGA RACHILLA RETINULA SENSILLA
SHIGELLA SILICULA STROBILA TRICHINA TROCHLEA VERTEBRA VESICULA VIBRISSA ZOOGLOEA
CHELICERA CHLAMYDIA CLEPSYDRA COLUMELLA CORBICULA ENDAMOEBA ENTAMOEBA GEOCORONA
HYPERBOLA MEGAFAUNA MULTIPARA MYCOFLORA MYCORHIZA MYXAMOEBA NAUMACHIA NULLIPARA
PALAESTRA PHLYCTENA PRIMIPARA SCINTILLA SENTENTIA SUBMUCOSA SUPERNOVA TARANTULA
TRABECULA VALLECULA XERODERMA COLEORHIZA MICROFAUNA MICROFLORA MYCORRHIZA
PREMAXILLA RICKETTSIA SALMONELLA VORTICELLA BIBLIOTHECA CONJUNCTIVA DIFFERENTIA
ENTOMOFAUNA HYDROMEDUSA SCYPHISTOMA SPERMATHECA TIBIOFIBULA ICHTHYOFAUNA
ZOOXANTHELLA

Latin/Greek Neuter Plurals (-UM/-ON → -A)

OS JUS CRUS OPUS OVUM ZOON CECUM DATUM FILUM FORUM GENUS HILUM ILEUM ILIUM INION
JUGUM NOTUM ODEUM SAGUM SERUM SOLUM TAXON VELUM ACETUM ADYTUM AECIUM AMNION
ANTRUM ASYLUM ATRIUM CILIUM CORIUM CORPUS DICTUM ETYMON FACTUM FOLIUM FRENUM
GLOMUS GONION GONIUM GRANUM LABIUM LABRUM LOGION MEDIUM MENTUM MICRON MIKRON
MILIUM OIDIUM OSTIUM PEPLUM PHYLON PHYLUM PIGNUS PLENUM PODIUM RECTUM REGNUM
RHYTON SACRUM SCUTUM SEPTUM SIGLUM SPUTUM TECTUM TELIUM TERGUM VACUUM VISCUS
ALODIUM AMENTUM ARCANUM BACULUM CAMBIUM CENTRUM CRANIUM CRISSUM EIDOLON ELUVIUM
ELYTRON ELYTRUM ENTERON ERRATUM FRAENUM FRUSTUM FULCRUM ISCHIUM JEJUNUM JUGULUM
LABARUM LUSTRUM MAXIMUM MEGARON MINIMUM OMENTUM OPTIMUM ORGANON ORGANUM OSCULUM
PALLIUM PEREION PINETUM PLEURON PUNCTUM QUANTUM ROSTRUM SANCTUM SCROTUM SISTRUM
STERNUM STRATUM TAPETUM TRIVIUM UREDIUM ZOARIUM ZOECIUM ACICULUM ACROMION
AECIDIUM AEROBIUM ALLODIUM ALLUVIUM APHELION APTERIUM AQUARIUM ASCIDIUM BASIDIUM
BIENNIUM BOTHRIUM BRACHIUM CEMENTUM CEREBRUM CHRISMON CIBORIUM CINGULUM COAGULUM
CONIDIUM COREMIUM CYATHIUM CYMATIUM DELIRIUM DILUVIUM DIPTERON DUODENUM ELYTROUS
EMPORIUM ENCOMIUM EULOGIUM EXEMPLUM EXORDIUM EXTREMUM FRENULUM FURCULUM FUSARIUM
GANGLION GONIDIUM GYNECIUM HIMATION HYMENIUM ILLUVIUM IMPERIUM INDUSIUM INOCULUM
LABELLUM LIXIVIUM LOMENTUM MOMENTUM MYCELIUM NOUMENON OOGONIUM OXYMORON PARERGON
PATAGIUM PECULIUM PERIDIUM PHILTRUM PLECTRON PLECTRUM PRONOTUM PROPRIUM PROPYLON
PUPARIUM PYGIDIUM PYXIDIUM RAMENTUM REFUGIUM ROSARIUM SCHOLIUM SEDILIUM SOLARIUM
SOLATIUM SPECTRUM SPECULUM SPICULUM SPLENIUM STASIMON STRIATUM SUBGENUS SUDARIUM
SYCONIUM TIMPANUM TOMENTUM TYMPANUM VASCULUM VELARIUM VEXILLUM VINCULUM VIVARIUM
ZOOECIUM ANTHELION ANTHEMION ANTHODIUM ANTISERUM ARBORETUM ASYNDETON AUTOMATON
BACTERIUM BRONCHIUM CALDARIUM CAPITULUM CHALAZION CLAUSTRUM CLITELLUM COCCIDIUM
COLLEGIUM COLLUVIUM COLLYRIUM CONTAGIUM CONTINUUM CRITERION CTENIDIUM CUBICULUM
CYMBIDIUM DECENNIUM DENTALIUM DICHASIUM EFFLUVIUM EPHEMERON EPICEDIUM EPIMYSIUM
EQUISETUM FLABELLUM FLAGELLUM GAMMADION GELSEMIUM GYMNASIUM GYNAECIUM GYNOECIUM
HERBARIUM HORDEOLUM HOSPITIUM MANUBRIUM MARSUPIUM MAZAEDIUM OPERCULUM OPUSCULUM
PALLADIUM PARHELION PHELONION POLLINIUM PRESIDIUM PTERYGIUM PYCNIDIUM REPTILIUM
RETICULUM RHIZOBIUM ROSTELLUM SACRARIUM SARMENTUM SCUTELLUM SENSILLUM SENSORIUM
SEPTARIUM SPIRILLUM SUBPHYLUM SYMPODIUM SYMPOSIUM SYNCYTIUM TEGMENTUM TENACULUM
TENTORIUM TERRARIUM TRAPEZIUM TRIENNIUM TRIFORIUM TRIHEDRON ULTIMATUM UNGUENTUM
UREDINIUM UROPYGIUM VESTIGIUM ACETABULUM AMBULACRUM ANAEROBIUM ANDROECIUM
APOTHECIUM ARGUMENTUM ASCOGONIUM AUDITORIUM CAPITELLUM CEREBELLUM CINERARIUM
COLLOQUIUM COMPENDIUM CONSORTIUM CURRICULUM DECAHEDRON ENCEPHALON EPICARDIUM
EPICENTRUM EPICRANIUM EPINEURIUM EPISTERNUM EPITHELIUM EXOSPORIUM FILOPODIUM
GLOCHIDIUM HAUSTELLUM HAUSTORIUM HEMELYTRON HEMELYTRUM HEXAHEDRON HONORARIUM
HYPANTHIUM INVOLUCRUM MESENTERON MILLENNIUM MIRACIDIUM MONOPODIUM MORATORIUM
MYOCARDIUM NATATORIUM NEPHRIDIUM OCEANARIUM OCTAHEDRON OMMATIDIUM OSMETERIUM
PANCRATIUM PANJANDRUM PARAMECIUM PARAPODIUM PERIHELION PERIMYSIUM PHENOMENON
PHYLLODIUM PLASMODIUM POLYHEDRON POLYPARIUM PRAESIDIUM PRESTERNUM PRIMORDIUM
PRINCIPIUM PROCAMBIUM PROSCENIUM PROSTOMIUM PSALTERIUM PUERPERIUM QUADRIVIUM
SANATORIUM SANITARIUM SANITORIUM SCLEROTIUM SEQUESTRUM SESTERTIUM SIMULACRUM
SPERMATIUM SPORANGIUM SUBSTRATUM SUDATORIUM TRICLINIUM TROPAEOLUM VIBRACULUM
ANIMALCULUM ANTEPENDIUM ANTHERIDIUM ARCHEGONIUM ASPERGILLUM CANDELABRUM
CARPOGONIUM CLOSTRIDIUM COLUMBARIUM CREMATORIUM DESIDERATUM ENCHIRIDION
ENDOCARDIUM ENDOMETRIUM ENDOTHECIUM ENDOTHELIUM EQUILIBRIUM EUBACTERIUM
FLORILEGIUM GAMETANGIUM HESPERIDIUM HORMOGONIUM HYPOLIMNION ICOSAHEDRON
INCUNABULUM INTERREGNUM LEPROSARIUM MEDIASTINUM MESOTHELIUM MONOCHASIUM
OSTENSORIUM PENICILLIUM PENTAHEDRON PERICARDIUM PERICRANIUM PERINEURIUM
PERITHECIUM PLANETARIUM PROTHALLIUM QUADRENNIUM RETINACULUM SCRIPTORIUM
SPOROGONIUM STAMINODIUM STYLOPODIUM TETRAHEDRON APPRESSORIUM ARCHESPORIUM
DIENCEPHALON DIVERTICULUM DODECAHEDRON EPITHALAMION HIBERNACULUM HYMENOPTERON
INFUNDIBULUM PERIONYCHIUM PHILODENDRON PROLEGOMENON PROTHALAMION PROTHALAMIUM
PSEUDOPODIUM QUINQUENNIUM RHOMBOHEDRON SPERMAGONIUM SUPERSTRATUM XIPHISTERNUM
ARMAMENTARIUM EPIPHENOMENON MESENCEPHALON METENCEPHALON MITOCHONDRION
MYCOBACTERIUM PERICHONDRIUM TRAPEZOHEDRON ZOOSPORANGIUM CHONDROCRANIUM
CYANOBACTERIUM DISEQUILIBRIUM MEGASPORANGIUM MYELENCEPHALON NONEQUILIBRIUM
PROSENCEPHALON RHINENCEPHALON SPERMATOGONIUM TRISOCTAHEDRON ARCHAEBACTERIUM
CORYNEBACTERIUM CRYPTOSPORIDIUM ENTEROBACTERIUM MICROSPORANGIUM RHOMBENCEPHALON
SUPERPHENOMENON

Hebrew/Yiddish Plurals (-IM)

GOY YOM ZUZ BAAL ERUV HAZAN HEDER MOHEL SEDER SHIUR ULPAN CHAZAN CHEDER CHERUB
DIBBUK DYBBUK GOYISH HALUTZ HAZZAN KHAZEN MAHZOR MINYAN MOSHAV SERAPH SHEKEL
SHEQEL SIDDUR TALLIT TERAPH ZADDIK CHALUTZ CHAZZAN CHAZZEN KADDISH KIBBUTZ
KLEZMER MACHZOR MELAMED MIDRASH SHEGETZ SHOCHET TALLITH TSADDIK TZADDIK ZADDICK
CHERUBIC MASHGIAH SERAPHIC SERAPHIN SHADCHAN SHADKHAN SHAMMASH MASHGIACH
MIDRASHOT TALLITOTH MIDRASHOTH

Hebrew Plurals (-OT / -OTH)

MATZO PRUTA TORAH AGGADA ALIYAH CHALAH CHUPPA HALLAH MIKVAH PRUTAH SUCCAH SUKKAH
AGGADAH CHALLAH HAFTARA HAGGADA HALACHA HALAKAH HALAKHA MEZUZAH MITSVAH MITZVAH
YESHIVA HAFTARAH HAFTORAH HAGGADAH HALAKHAH HAPHTARA MECHITZA PARASHAH

Consonant-Y Nouns That Take Plain '-S' (DRY → DRYS)

BY WHY AWNY EMMY POLY BORTY COPSY GOOKY NOILY BLEBBY BRIARY BRIERY CAIRNY CHASMY
GOWANY KNARRY LINENY MELONY MYRRHY ONIONY POUFFY QWERTY SAUGHY SHARNY SYLPHY
ACTORLY ALMONDY AREALLY BOFFINY CLOVERY FRIARLY GARBAGY GARGETY JASPERY LAIRDLY
LOVERLY MAGGOTY MEADOWY MUTTONY NUGGETY OVULARY PEWTERY RAISINY RUSSETY SPITTLY
SUASORY THEGNLY TINDERY VIXENLY WEEVILY WREATHY AGUISHLY ANODALLY BANKERLY
BISCUITY BLADDERY BULLOCKY CHEDDARY CITATORY CLONALLY COMETARY COUSINLY DATIVELY
DOTARDLY EPICALLY HECTICLY HILLOCKY LAICALLY LUBBERLY LUNATELY MAIDENLY MATRONLY
MULLOCKY NOUNALLY OBLATORY PATRONLY PEASANTY PORRIDGY POSSIBLY PROBABLY SAILORLY
SALIVARY SAWDUSTY SUNBEAMY SUNSHINY THICKETY TOURISTY TROLLOPY TUSSOCKY WEEVILLY
WHISKERY

Other Irregular Plurals

BIZ COW COZ CUZ DID DUI ELF EYE FEZ FIZ GET GOT LEK LEX LEZ MON NIX NOS OAF PES
REZ WIZ ZOA AMBO BEEF BIRR CALF CORF COWS DONE DOSA DOST DOTH DUCI EYED EYEN
EYES EYNE FOOT GENS GETS GIGA HALF HOMO HOOF HOSE INIA KUNA LATI LEAF LEKE LEKS
LEKU LEVA LIED LIFE LIPA LIPE LIRA LIRE LIRI LITU LOAF MANS MIRI MONS NIDI NOES
OAFS ODEA OWSE OYES PLUS PONS ROTL SELF SHOD SHOE SHUL SIDH SPAZ TAXA TURF WIFE
WOLF AMBOS ARROZ ARTAL ATLAS ATRIA BEEFS BIRRS BLINI BYSSI CALFS CENTU CHILD
CHONS COWED COZES CUZES DIDST DOEST DOETH DONNA DONNE DOSAI DOSAS DUMKA DUMKY
ECHOS EIDOS EQUES EYING EYRIR FACTA FEZES FEZZY FOOTS FRONS GADJO GENII GLANS
GOOSE GOYIM GROSZ HAIKA HERES HOMOS HOOFS HOSED HOSES INCUS KNIFE KORUN KRONA
KRONE LEAFS LEXES LIBRI LIMES LIPAS LIRAS LIROT LITAI LITAS LOAFS LOTTA LOUSE
MATER MENSH MOLYS MONAS MONEY MOUSE NARIC NIXED NIXES PADRI PAISA PAISE PEASE
PENCE REMEX REZES ROTLS SCARF SCHUL SELFS SENES SENTE SHELF SHOED SHOES SHOON
SHULN SHULS SISES TERES THIEF TOOTH TORTE TURFS URAEI UTERI VACUA WIFED WIFES
WINOS WIZES WOLFS YURTA ZLOTE ANLAGE APEMEN APEXES APICES ARMFUL AXISED AXISES
BAGFUL BEEFED BEHALF BEHOOF BINMEN BIRRED BUCKOS CALXES CANFUL CARIED CENTAI
CENTAS COWING COZZES CRISIC CRUCES CRUXES CUPFUL CUZZES DIPSAS DJINNI DJINNY
DONNAS DUMKAS ECHOED ECHOES EMESES ERUVIM EYEING FEZZED FEZZES FOOTED GECKOS
GENERA GLEYED GOOSED GOOSES GOPIKS GOTTEN GROSZE HALIER HATFUL HICKEY HOOFED
HOSING IBEXES IBICES IRIDES IRISED IRISES JARFUL JINNEE JUGFUL KNIFED KNIFES
KORUNA KORUNY KRONER KRONUR KROONI LARYNX LEAFED LEKKED LIROTH LOAFED LOGOED
LOUSED LOUSES LOVIER MAMEYS MANNED MATERS MATRES MENSCH MIOSES MOLIES MONEYS
MONIES MOUSED MOUSES MUSKOX MYOSES NARIAL NARINE NIXING NOMINA OAFISH OTITIC
PAISAS PARIES PEASEN PEASES PENNES PINKOS PLUSES POLIES PRAXES PTOTIC REZZES
SAXMEN SCARFS SCHMOS SCHULN SCHULS SELFED SHTETL SISSES SPHINX STIPES STIRPS
TOOTHS TORTEN TORTES TURFED TUSSES URTEXT WHEYEY WIFING WINOES WIZZES WOLFED
WOMANS WUSHUS ZLOTYS ALEWIFE AMBONES ANLAGEN ANLAGES APHETIC ARMFULS ARMSFUL
ARROCES ARROZES ASCITIC ATLASES BAGFULS BAGSFUL BEEFING BEHOOFS BIRRING BODYMEN
BOWSMEN BROTHER BUCKOES BUSHIER CANFULS CANSFUL CHITALS CHOKIER CULEXES CULICES
CUPFULS CUPSFUL DISTAFF DORYMEN ECHOING ELFLIKE ENDLEAF EREMURI EYEABLE FAIRIER
FEDAYEE FLYLEAF FORKFUL FROSHES GECKOES GESTALT GETABLE GETTING GOOSING HADITHS
HALIERS HANDFUL HATFULS HATSFUL HAZANIM HICKEYS HISSIER HOMINES HOOFING HUSWIFE
INDEXED INDEXES INDICES INUKSUK IRISING IVYLIKE JARFULS JARSFUL JUGFULS JUGSFUL
KAPEYKA KNAIDEL KNEIDEL KORUNAS LATEXES LATICES LEAFING LEKKING LEXISES LICENTE
LISENTE LITOTIC LOUSING LOVIEST LOWLIFE MAMEYES MANNING MENSCHY MENSHEN MENSHES
MIDLIFE NANCIER NONLIFE NONSELF OLDWIFE PAILFUL PENNIES PINKIER PINKOES PINSPOT
PITMANS PIXYISH PLUSSES PRELIFE PYSANKA RAILMEN ROOMFUL SACKFUL SANIOUS SCARFED
SCHMOES SELFING SHODDEN SHOEING SHTETEL SHTETLS SORITIC STARETS TERESES TERETES
TOOTHED TRIPMEN TURFING TUSSIVE URTEXTS VERMINS WEIRDOS WERWOLF WHEYISH WOLFING
WOMANED ZLOTIES ZLOTYCH AARDWOLF AGENETIC AIRWOMEN ATLANTES AUTOBAHN BROTHERS
BUSHIEST CALFLIKE CANDYMEN CANOEMEN CANTUSES CHAZANIM CHOKIEST COCKSMEN CONTINUA
CYCLOPES DETRITAL DIERETIC DISTAFFS DOGTOOTH ECLIPSES EMESISES ENDLEAFS EYETOOTH
FAIRIEST FARMWIFE FEDAYEEN FISHWIFE FLAGELLA FOLKLIFE FOREHOOF FORKFULS FORKSFUL
GESTALTS GETTABLE GODCHILD GOODWIFE HALFLIFE HALIEROV HANDFULS HANDSFUL HAUSFRAU
HAZZANIM HERPESES HERPETIC HISSIEST HUSWIFES INUKSUIT INUKSUKS KABLOONA KALEWIFE
KEESHOND KERCHIEF KNAIDELS KNEIDELS LACHESES LARYNGES LARYNXES LAYWOMEN LILYLIKE
LONGLEAF LOWLIFES MADWOMEN MANKINDS MEATLOAF MENSCHEN MENSCHES MIOSISES MONSIEUR
MOONCALF MUSKOXEN MYOSISES NANCIEST OAFISHLY OTITIDES OTITISES OVERMANS PAILFULS
PAILSFUL PASSERBY PELVISES PEMPHIGI PENKNIFE PENSIONI PINKIEST PINSPOTS PLATEFUL
PRAXISES QUAYLIKE RABIETIC REMIGIAL RIGHTIER RIVERMEN ROOMFULS SACKFULS SACKSFUL
SAWTOOTH SCARFING SCHLIERE SCHNECKE SCOOPFUL SEAMANLY SHEQALIM SHINLEAF SHOFROTH
SHTETELS SIDESMEN SPHINGES SPHINXES SPOONFUL STOREMEN TABLEFUL TENORMEN TIPSTAFF
TOOTHING TUSSISES TZURISES WEIRDOES WEREWOLF WOMANING WOMANNED YEOMANLY
AUTOBAHNS BARRELFUL BASKETFUL BONDWOMEN BOOKSHELF BROADLEAF BROTHERED BUCKETFUL
CAMPANILI CHAIRMANS CHARWOMEN CHOKERMEN CLUBWOMEN CONTRALTI COWLSTAFF DONKEYMEN
DOORWOMEN DRAGOMANS DRAWKNIFE FARFALLES FLAGSTAFF FOLKLIFES FOREHOOFS FOREWOMEN
GESTALTEN HABITUSES HAUSFRAUS HEADSCARF HOUSEWIFE INTERLEAF IRONWOMEN JACKSTAFF
JAILBAITS JURYWOMEN KABLOONAS KABLOONAT KEESHONDS KERCHIEFS KINSWOMEN KNAIDLACH
KNEIDLACH LANDSLEIT LIVERLEAF LOIASISES MOONCHILD NEWSWOMEN OARSWOMEN PIKESTAFF
PLATEFULS PLATESFUL PLOUGHMEN POCKETFUL POWDERMEN QUIVERFUL RIGHTIEST SCHNECKEN
SCOOPFULS SCOOPSFUL SEMIDWARF SHINLEAFS SHOVELFUL SHRAPNELS SHTETLACH SIEMENSES
SPOONFULS SPOONSFUL STEPCHILD SUGARLOAF SUPERWIFE TABLEFULS TABLESFUL TIPSTAFFS
TIREWOMEN TREVALLYS VOLKSLIED WASHWOMEN WATERLEAF WISEWOMEN WOMANNING WORKWOMEN
ALDERWOMEN AUTOBAHNEN BARRELFULS BARRELSFUL BASKETFULS BASKETSFUL BOLSHEVIKI
BRAINCHILD BROTHERING BUCKETFULS BUCKETSFUL CHAIRMANED CHAIRWOMEN CLOVERLEAF
COWLSTAFFS DROPPERFUL ECLIPSISES EVERYWOMEN FLAGSTAFFS FREEDWOMEN GRANDCHILD
HAMANTASCH HAUSFRAUEN HORSEWOMEN JACKSTAFFS KEESHONDEN LUFTMENSCH MANSERVANT
MARKSWOMEN NOBLEWOMEN OVERMANNED PIKESTAFFS PINSPOTTED PITCHERFUL PITCHWOMEN
PLATTERFUL POCKETFULS POCKETSFUL QUIVERFULS QUIVERSFUL SALESWOMEN SATCHELFUL
SCRUBWOMEN SEMIDWARFS SHOVELFULS SHOVELSFUL STUNTWOMEN SUPERWOMEN THIMBLEFUL
TOWNSWOMEN TREVALLIES TUMBLERFUL WATERLEAFS WUNDERKIND ANCHORWOMEN CAMERAWOMEN
CHAIRMANING CHAIRMANNED CHURCHWOMEN CLERGYWOMEN CLOVERLEAFS CRAFTSWOMEN
DROPPERFULS DROPPERSFUL FISHERWOMEN GENTLEWOMEN MANTELSHELF MONSEIGNEUR
NECKERCHIEF NEEDLEWOMEN OVERMANNING PINSPOTTING PITCHERFULS PITCHERSFUL
PLATTERFULS PLATTERSFUL POCKETKNIFE POLICEWOMEN SATCHELFULS SATCHELSFUL
SCHOOLCHILD SPOKESWOMEN SPORTSWOMEN THIMBLEFULS THIMBLESFUL TUMBLERFULS
TUMBLERSFUL WASHERWOMEN APPARATCHIKI CHAIRMANNING COCHAIRWOMEN COUNCILWOMEN
COUNTRYWOMEN DERMATITIDES DERMATITISES HAMANTASCHEN HANDKERCHIEF LUFTMENSCHEN
MADEMOISELLE MONSEIGNEURS NECKERCHIEFS QUARTERSTAFF SERVICEWOMEN WORKINGWOMEN
ASSEMBLYWOMEN BUSINESSWOMEN CONGRESSWOMEN HANDKERCHIEFS MADEMOISELLES
MASTOIDITISES PATERFAMILIAS COMMITTEEWOMEN MESDEMOISELLES NEWSPAPERWOMEN

Copyright © 2026 Mitch Bayersdorfer  ·  AGPL-3.0  ·  Thanks to Joe Petree for his definitions for these lists.  ·  Detailed Attributions