7- and 8-letter words ending with the suffix -OLOGY with definitions
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59 total entries across 2 section(s)
Note: this list is built from spelling, not meaning. Some words here end with the right letters but do not really use the suffix in its usual sense. They are included on purpose: for Scrabble we suggest learning the suffix as a letter pattern rather than learning the meanings.
| FRONT | WORD | BACK | DEFINITION |
|---|---|---|---|
| — | APOLOGY | — | [n. -GIES] · an expression of regret for some error or offense |
| — | BIOLOGY | — | [n. -GIES] · the science of life |
| O | ECOLOGY | — | [n. -GIES] · an environmental science - ECOLOGIC [a.] / [x] { ecology oecology § ecologies § ecologic ecological } |
| MOPV | ENOLOGY | — | [n. -GIES] · oenology «the study of wines» / [x] { enology oenology oinology § enologies oenologies oinologies } |
| — | GEOLOGY | — | [n. -GIES] · the science that deals with the origin and structure of the earth - GEOLOGIC [a.] / [x] { geology § geologies § geologic geological } |
| — | MYOLOGY | — | [n. -GIES] · the study of muscles - MYOLOGIC [a.] |
| — | NEOLOGY | — | [n. -GIES] · a new word or phrase - NEOLOGIC [a.] |
| H | OROLOGY | — | [n. -GIES] · the study of mountains |
| — | OTOLOGY | — | [n. -GIES] · the science of the ear - OTOLOGIC OTOLOGICAL [a.] (=otologic otological) / [x] { otology § otologies § otologic otological } |
| — | UFOLOGY | — | [n. -GIES] · the study of unidentified flying objects |
| — | UROLOGY | — | [n. -GIES] · the branch of medicine dealing with the urinary tract - UROLOGIC [a.] / [x] { urology § urologies § urologic urological } |
| — | ZOOLOGY | — | [n. -GIES] · the science that deals with animals - ZOOLOGIC [a.] / [x] { zoology § zoologies § zoologic zoological } |
| FRONT | WORD | BACK | DEFINITION |
|---|---|---|---|
| — | AEROLOGY | — | [n. -GIES] · the study of the atmosphere |
| — | AGROLOGY | — | [n. -GIES] · the science of soils in relation to crops |
| — | ALGOLOGY | — | [n. -GIES] · the study of algae |
| — | APIOLOGY | — | [n. -GIES] · the study of bees |
| — | AREOLOGY | — | [n. -GIES] · the study of the planet Mars |
| — | AXIOLOGY | — | [n. -GIES] · the study of values and value judgments |
| — | BRYOLOGY | — | [n. -GIES] · the study of mosses |
| — | CETOLOGY | — | [n. -GIES] · the study of whales |
| — | CYTOLOGY | — | [n. -GIES] · a study of cells |
| — | DOXOLOGY | — | [n. -GIES] · a hymn or verse of praise to God |
| — | ETHOLOGY | — | [n. -GIES] · the study of animal behavior |
| A | ETIOLOGY | — | [n. -GIES] · the study of the causes of diseases / [x] { aetiology etiology § aetiologies etiologies } |
| — | FETOLOGY | — | [n. -GIES] · the branch of medicine dealing with the fetus |
| — | GEMOLOGY | — | [n. -GIES] · the science of gems |
| — | HOMOLOGY | — | [n. -GIES] · similarity in structure |
| — | HOROLOGY | — | [n. -GIES] · the science of measuring time |
| — | IDEOLOGY | — | [n. -GIES] · a systematic body of ideas / [x] { idealogies idealogy ideology § ideologies } |
| — | MENOLOGY | — | [n. -GIES] · an ecclesiastical calendar |
| — | MISOLOGY | — | [n. -GIES] · a hatred of debate or reasoning |
| — | MIXOLOGY | — | [n. -GIES] · the art of making mixed drinks |
| — | MONOLOGY | — | [n. -GIES] · the act of uttering a monolog |
| — | MYCOLOGY | — | [n. -GIES] · the branch of botany dealing with fungi |
| — | NOMOLOGY | — | [n. -GIES] · the science of law |
| — | NOSOLOGY | — | [n. -GIES] · a classification of diseases |
| — | OECOLOGY | — | [n. -GIES] · ecology / [x] { ecology oecology § ecologies § ecologic ecological } |
| P | OENOLOGY | — | [n. -GIES] · the study of wines / [x] { enology oenology oinology § enologies oenologies oinologies } |
| — | OINOLOGY | — | [n. -GIES] · oenology «the study of wines» / [x] { enology oenology oinology § enologies oenologies oinologies } |
| — | ONCOLOGY | — | [n. -GIES] · the science of tumors |
| — | ONTOLOGY | — | [n. -GIES] · the branch of philosophy that deals with being |
| — | PEDOLOGY | — | [n. -GIES] · the scientific study of the behavior and development of children |
| — | PENOLOGY | — | [n. -GIES] · the science of the punishment of crime / [x] { penology poenology § penologies poenologies } |
| — | POMOLOGY | — | [n. -GIES] · the study of fruits |
| — | POSOLOGY | — | [n. -GIES] · a branch of medicine that deals with drug dosages |
| — | PYROLOGY | — | [n. -GIES] · the scientific examination of materials by heat |
| — | RHEOLOGY | — | [n. -GIES] · the study of matter in the fluid state |
| — | SEROLOGY | — | [n. -GIES] · the science of serums |
| — | SEXOLOGY | — | [n. -GIES] · the study of human sexual behavior |
| — | SINOLOGY | — | [n. -GIES] · the study of the Chinese~ |
| — | SITOLOGY | — | [n. -GIES] · the science of nutrition and diet |
| — | THEOLOGY | — | [n. -GIES] · the study of religion |
| — | TOCOLOGY | — | [n. -GIES] · the branch of medicine dealing with childbirth / [x] { tocology tokology § tocologies tokologies } |
| — | TOKOLOGY | — | [n. -GIES] · tocology «the branch of medicine dealing with childbirth» / [x] { tocology tokology § tocologies tokologies } |
| — | TOPOLOGY | — | [n. -GIES] · a branch of mathematics |
| — | TYPOLOGY | — | [n. -GIES] · the study of classification according to common characteristics |
| — | VENOLOGY | — | [n. -GIES] · the study of veins |
| — | VIROLOGY | — | [n. -GIES] · the study of viruses |
| — | ZYMOLOGY | — | [n. -GIES] · the science of fermentation |
Copyright © 2026 Mitch Bayersdorfer · AGPL-3.0 · Thanks to Joe Petree for his definitions for these lists. · Detailed Attributions