There are 869 words with the suffix OLOGY in our word list of 359,039 words, and every one of them is on this page — grouped by length so you can scan fast, with a live filter when you need something narrower. The biggest group is the 10-letter words (182 of them); the spread is 1 of them 6 letters long, 18 of them 7 letters long, 92 of them 8 letters long, 146 of them 9 letters long, and more up to 15 letters. The longest entries are anaesthesiology, anthropobiology and arthropathology. Word-game players keep lists like this open for a reason: Scrabble and Words With Friends reward the obscure corners of the dictionary, crossword solvers live on pattern matching, and Wordle players work by elimination. You can use this Words Ending in OLOGY (Suffix OLOGY) free on IlmHunt — no sign-up needed, and it runs entirely in your browser.
The suffix -OLOGY the study or science of something (biology, geology, psychology) — three examples from this page: abiology, aceology, acology.
The full list
6-letter words (1)
oology
7-letter words (18)
acology apology biology ecology enology geology isology myology naology neology noology odology orology otology ovology ufology urology zoology
8-letter words (92)
abiology aceology acrology aerology agrology algology apiology areology atmology autology auxology axiology azoology barology boyology bryology bugology cacology cetology chaology cryology cynology cytology demology dosology doxology edeology eidology ergology ethology etiology fetology gemology hemology homology horology hylology ideology indology kinology lemology logology menology mesology misology mixology monology morology mycology nasology nidology nomology nosology oecology oenology oikology oinology oncology ontology optology osmology pedology pegology penology podology pomology posology pyrology rheology runology semology serology sexology sinology sitology taxology tenology theology tidology tocology tokology tonology topology toxology triology tsiology typology tyrology vinology virology xylology zymology
9-letter words (146)
acarology acidology acyrology adenology aetiology agriology aitiology ambrology anemology angiology anthology aphnology archology astrology atheology atomology audiology bascology battology bumpology caliology caneology carpology chirology chorology clinology coniology coprology cosmology crenology ctetology curiology dantology desmology diabology dittology dosiology emetology eremology erotology ethnology etymology euchology faunology festology fungology gemmology gipsology gnomology gypsology hagiology haplology helcology heliology heroology hexiology hierology hippology histology hittology hoplology hydrology hyetology hygeology hygiology hygrology hymnology hypnology iatrology ichnology iconology karyology koniology leprology leptology limnology lithology loimology macrology mantology mariology mastology metrology micrology momiology muscology museology mythology nassology necrology nephology neurology nostology ombrology omenology ophiology orrhology orthology osteology paedology paidology paleology pantology pathology patrology pestology petrology pharology phenology philology phonology phorology photology phycology phylology phytology pistology plutology poenology psilology punnology quinology radiology reapology rhinology sarcology scatology semiology sialology sitiology skatology sociology symbology tautology tecnology tectology teleology therology tribology tropology turkology typtology uranology urinology uronology uterology
10-letter words (182)
actinology aedoeology agathology agmatology agnoiology algaeology angelology antapology araneology archeology aristology arthrology autecology auxanology balneology bibliology bioecology brontology buddhology cardiology caricology carphology cecidology chartology cheirology chronology chrysology cloudology codicology cohomology cometology conchology craniology cryptology cyesiology deltiology demonology dendrology deontology dicaeology docimology druidology echinology edaphology egyptology eidolology eikonology embryology emmenology enterology entomology enzymology epizoology erpetology escapology exobiology fairyology feminology filicology fluviology fosslology futurology gastrology genecology geobiology geratology ghostology glaciology glossology glottology glyptology gnosiology gnostology graphology gynecology hedonology hematology hemerology heortology hepatology herniology heterology hexicology histiology homerology humorology iamatology idiomology immunology japanology kymatology lexicology lymphology magirology malacology mataeology meconology miasmology minerology missiology monadology morphology musicology mycetology nematology neontology neossology nephrology numerology oceanology odontology oneirology ophidology opsonology organology orismology oryctology palaeology palynology papyrology parisology paromology pelycology phaenology phlebology phrenology physiology pisteology pistiology plasmology pneumology pogonology ponerology potamology praxeology praxiology probiology proctology psammology psephology pseudology psychology ptochology pyretology pyritology reactology rhabdology saintology sanctology satanology seismology selenology sematology semeiology siderology snakeology somatology sophiology speciology speleology spermology splenology spongology spookology staurology stereology storiology sumerology synecology technology teratology thereology thermology timbrology toxicology trichology trophology typhlology urbanology venerology vermeology zoogeology
11-letter words (145)
acanthology aerobiology aerogeology aesthiology agrobiology agrogeology agrostology alethiology allergology amphibology anthecology aphasiology arachnology archaeology arcticology arteriology assyriology asthenology autobiology biocenology biotypology bromatology campanology carcinology cecidiology cenozoology cephalology cerebrology chondrology chresmology christology climatology coccidology cosmecology cosmetology criminology cryobiology culturology cyclonology cytoecology dactylology daemonology daimonology defectology dermatology diabolology dipterology eccrinology electrology emblemology endemiology entozoology eschatology esthetology etruscology forestology fossilology galvanology genesiology gerontology gigantology gnomonology graminology graphiology gynaecology haematology heresiology herpetology hibernology hittitology horismology hormonology hysterology ichthyology idiobiology insectology islandology kinesiology laryngology lichenology malariology martyrology maternology mechanology melittology metabiology meteorology methodology myrmecology neonatology nerterology nosetiology olfactology onomatology orchidology ornithology paletiology pantheology parhomology parsonology penetrology periodology perissology phraseology piscatology pithanology pithecology planetology planktology primatology pteridology pterylology reflexology rhematology scientology scolecology semantology semasiology sermonology societology soteriology spectrology spelaeology sphagnology sphygmology stigmeology stomatology suicidology symbolology symtomology synechology syphilology tartarology telmatology tenontology terminology thanatology threpsology uredinology venereology vexillology volcanology vulcanology xenobiology zoonosology
12-letter words (103)
amphibiology anorganology anthobiology anthoecology anthropology antitheology aponeurology astrobiology astrogeology bacteriology biosociology chromatology cinchonology criteriology dactyliology desmidiology dialectology dysteleology ecclesiology enigmatology epidemiology epileptology epiphytology epistemology epizootology esthesiology ethnobiology ethnozoology exocrinology fermentology geohydrology geotectology gnotobiology grammatology hamartiology hepaticology historiology hydrobiology hydrogeology kremlinology limnobiology liturgiology membranology metatheology miasmatology microbiology microgeology microzoology neurobiology neurypnology nothingology onomasiology opthalmology otoneurology palaetiology paleobiology paleoecology paleontology paleozoology paradoxology parasitology paroemiology parthenology pathobiology phalangology pharmacology pharyngology photobiology photogeology phthisiology phytobiology phytoecology pneumatology protistology protozoology pyrotheology radiobiology radioecology rheumatology rontgenology sociobiology statistology stoechiology stoichiology stromatology superapology symptomology syndesmology synechiology synosteology technicology testaceology thalattology thaumatology thermatology trachelology traumatology universology urolithology vitaminology weatherology zoopathology zoophytology
13-letter words (65)
acropathology aerolithology alphabetology anatripsology astrotheology biophysiology biopsychology biospeleology biotechnology chronobiology crustaceology crystallology cytopathology dermonosology desmonosology diplomatology ecophysiology emblematology encephalology endocrinology endodontology epizootiology esthematology geochronology geomorphology gerodontology helminthology hemipterology hemopathology hipponosology leucocytology neurhypnology numismatology ophthalmology osphresiology paidonosology palaeobiology palaeoecology palaeontology palaeozoology paleethnology paleopedology pathematology pedodontology phantasmology phenomenology philematology phytooecology phytoserology prepsychology promorphology proverbiology psychobiology roentgenology sedimentology splanchnology stoicheiology synchronology systematology theomythology theoteleology thremmatology toreumatology zoophysiology zoopsychology
14-letter words (62)
anesthesiology archaeogeology astrolithology atmospherology autopsychology bioclimatology biometeorology characterology chemicobiology coleopterology cytomorphology cytophysiology cytotechnology desmopathology electrobiology enteradenology hippopathology histopathology ichneumonology ichnolithology idiopsychology lymphangiology macrocosmology metapsychology microcosmology microhistology micropathology micropetrology microphytology neurohistology neurohypnology neuropathology neuropterology odontonosology orthopterology otolaryngology palaeethnology palaeopedology paleentomology paleochorology paleocosmology paleoeremology paleoethnology paleohistology paleolimnology paleomammology paleopathology paleophytology parapsychology periodontology phytolithology phytopathology phytophenology phytosociology radiopathology sciomachiology serophysiology somatotypology symptomatology synantherology teleseismology terotechnology
15-letter words (55)
anaesthesiology anthropobiology arthropathology chemophysiology dispersoidology embryopathology engysseismology ethnomusicology ethnopsychology hematopathology hieroglyphology histomorphology histophysiology hymenopterology immunopathology lepidopterology mesometeorology micromorphology microseismology neuroembryology neurophysiology neuropsychology onychopathology palaeentomology palaeochorology palaeocosmology palaeoeremology palaeoethnology palaeohistology palaeolimnology palaeopathology palaeophytology paleichthyology paleodendrology paleoglaciology paleophysiology paleopotamology paleopsychology paleornithology pathomorphology pathophysiology pathopsychology patronomatology physicotheology physiopathology phytomorphology phytophysiology phytoteratology psychopathology psychosociology radiotechnology sialosemeiology theanthropology theromorphology zoopaleontology
Frequently asked questions
How many words with the suffix OLOGY are there?
Our word list contains 869 words with the suffix OLOGY, out of 359,039 entries in total. They run from 6 to 15 letters, and the 10-letter group is the largest with 182 words.
What are the longest words with the suffix OLOGY?
The longest are anaesthesiology (15 letters), anthropobiology (15 letters) and arthropathology (15 letters).
Which words with the suffix OLOGY score highest in Scrabble?
By raw letter values, the top scorers on this page are zoopsychology (36 points), phytophysiology (35 points) and chemophysiology (34 points) — before any letter or word multipliers. One honest caveat: this list is a broad English word list, so a few rare or technical entries appear that official game dictionaries (and Wordle’s answer list) do not accept. Always check a play against the dictionary your game uses.
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