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12-Letter Words That Start With: O

There are 759 12-letter words, 138 12-letter phrases and 0 12-letter abbr's that start with O.

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RankWordSave?LengthUsagePointsType
1objectivized12
36 verb, adverbv, adv
2objectivizes12
35 verbv
3objectifying12
30 verb, adjectivev, adj
4ozonizations12
30
5outjockeying12
29 verb, adverbv, adv
6overequipped12
29 adjectiveadj
7oxidizations12
29 nounn
8oxycephalies12
29 nounn
9oxycephalous12
29 adjectiveadj
10overanalyzed12
28 adjectiveadj
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All 12 Letter Words

Words (759)
organization22occasionally19overwhelming24organisation13occupational18orchestrated18overpowering21orthodontist16outstretched18ostentatious12overestimate17osteoporosis14obstetrician16otherworldly22outrageously16overstepping20oceanography23outmanoeuvre17overreaction17obliteration14obsolescence18obscurantism18orthodontics18overspending19overdramatic20osteosarcoma16otosclerosis14overpopulate19overdressing17overburdened19oligarchical20oversleeping18orthopaedics20overindulged18overachiever23orienteering13overeducated19overreaching21oversimplify25ordinariness13overexposure24outproducing18oxyacetylene27overbalanced20overpressure17oscillograph20oophorectomy24osteological15outdistanced16overemphasis22orchidaceous20orthographic23overanalyzed28onomatopoeia16orchestrator17obscurantist16oscilloscope18osteogenesis13ossification17outplacement18overgenerous16omnipresence18obligatorily18octogenarian15overinflated19overcautious17obstreperous16optimization25overshooting19overexertion22obligingness16oppositeness16overabundant18optimisation16outbuildings16overpromises19oceanologist15overharvests21overpromoted20overlordship21overpromotes19overmatching23observations17overasserted16overprotects19overexploits24obdurateness15outpromising17overextended24ochlocracies21overutilizes24oropharynges21overvoltages19overreachers20overfatigues19overcramming22overfavoring22outsparkling19overwatching24overcrowding22overstocking22oxygenations23overwearying22overreliance17overstrained16overstresses15octosyllable19obstructions16outspreading16obstructives19overnighting20overresponds18overweighted23outcompeting19overdecorate18outmaneuvers17outsprinting15organoleptic17overindulges17oppressively22octapeptides19overinflates18overoperated18overroasting16ostentations12overstuffing22omnisciences18outcroppings19outgeneraled14osteoclastic16overdirected19outreproduce17oratorically17osteogeneses13outglittered14outachieving21overfulfills21oversanguine16oversaturate15outstripping17outrivalling16oversweetens18outgoingness14objurgations22ornamentally17overgarments18overpedalled19orientalists12overlaboring18orthopedists18outbalancing17ovipositions17overpeopling20orientations12overcapacity24overpersuade18officialdoms23overtaxation22overserviced21orchestrater17orchestrates17oppositional16overthinking23overshadowed23outperformed20originations13overplanting18overthrowing22obliterating15obliterative17oligophagous19obliterators14outlandishly19overlengthen19overclaiming20ostracoderms17offscourings21overclassify23outscreaming17overgoverned20obnubilating17overlighting20overachieved24overclouding19overpraising18outthrusting16openhandedly22outbrazening24outsiderness13outtraveling16outtravelled16overproduced21overexciting25overmanaging19overtrumping20overcompress21overexerting23overprograms20overpromised20overspenders18overarousals15overmastered18oceanologies15overexpanded26otoscleroses14overarranged17overarranges16overconcerns19onomastician16orthotropous17overspilling18operatorless14overexplains24orographical20overexplicit26overconsumed20overconsumes19overmaturity20overexposing25overmedicate20overcontrols17overstaffing22overutilized25oblanceolate16osmolalities14oropharynxes27osmolarities14overbalances19orotundities13overcorrects19overcounting18onomatopoeic18opinionative17optometrists16officeholder24outsourcings15overreacting18outcavilling18overfatigued20oversteering16overmodestly21organicities15overhonoring19overcropping22overwatering19overbleached23overbleaches22overhuntings19overregulate16overstirring16overidealize25octahedrally21overstressed16octosyllabic21overreported18onychophoran25overidentify22overnighters19overweighing23orthocenters17overstrewing19obfuscations19outspringing16overborrowed21overflooding20overstridden17outreasoning13outgalloping16overstriding17outrebounded16obsequiously26organologies14outreckoning19orthodontias16omnipotences18overdesigned18overoperates17omnipotently19overinformed21overoptimism21overstudying20overbreeding19overfocusing21overoptimist19objectifying30overfocussed21overwintered19omnisciently19overfocusses20overdevelops21osteoblastic16overwithheld25overbriefing21overwithhold25overactivity23oleaginously16omnivorously20orthogeneses16outmastering15overorganize25orthogenesis16oleandomycin20orthogenetic18overornament17overdiscount18oversupplied20oversupplies19overissuance17objectivisms28overpackaged25overpackages24outstretches17overdocument20objectivists26overbrowsing21overbuilding19obsoleteness14orthogonally19overdominant18outwrestling16oleoresinous12osteologists13outdatedness14obtusenesses14overpayments22outnumbering17overswinging20overpedaling19orientalisms14osteopathies17orientalized22outdelivered17orientalizes21outorganized23oblatenesses14osteoplastic16outorganizes22olfactometer19osteoporoses14outdesigning15osteoporotic16ozonizations30outbargained16outdistances15overdrinking21oncogenicity20overcritical19ozonospheres26officialeses20officialisms22opportunisms18opportunists16overservices20overcastings18opposability21orthopterans17overteaching21orthopterist17orchestrally20orthopteroid18oligochaetes18oncornavirus17officiations20overcautions17osteomalacia16ovariotomies17overplanning18orthorhombic24overcharging22overlearning16offishnesses21oligophagies19overchilling21oligopsonies15overeducates18overplotting18occidentally20orismologies15overtightens19overfamiliar20oligotrophic20opalescences18opalescently19owlishnesses18opaquenesses23obnubilation16overcleaning18oafishnesses18overabstract19overclearing18overslaughed20outthrobbing20overemphases22occultations16ornatenesses12overliterary18outintrigued14overachieves23outintrigues13ornerinesses12outpoliticks20overemphatic24overenamored18odiousnesses13overslipping20oxaloacetate21oscillations14overcoaching23oscillograms17outpopulated17outpopulates16overengineer16oxalacetates21overcoloring18overenrolled16overtraining16ornithologic18outjockeying29overprinting18overequipped29overtreating16obscurations16overanalyses18otiosenesses12overanalysis18oarsmanships19overtrimming20overanalyzes27operatically19optimalities16outbreedings16overproduces20odontoblasts15ornithopters17overexercise24operationism16outpreaching20overmannered18overhandling20operationist14overtrusting16odontographs19odontography22ommastrephesonomasiology18ophioglossumobservancies19orogenically18onomasticons16odontologies14optimistical18odontologist14organicistic17obcompressed21overmuchnessombrophilous21oxidimetries22odontomatous15odontophobia20ombrophobous23overmeasured18oxidisations20oreographies18orologically18overmeasures17odontophoral18outvillained16obsessionist14odontophoran18overutilised16overutilises15oxidizations29odontophores18overstaining16overheatings19optoacoustic18ophthalmitis22orepearching20overstanding17ororotundity16outlaunching18ochlophobiac26ochlophobias24ophicalcites21overrashness18obligational15outward-boundodorimetries15onomatomaniaobsignations15obedientiary18optometrical18ophidiariums20omissiveness17office-bearerovercovering21ophiolatries17opisthocomusorchestiidaeophiolatrous17ochroleucous19overbiddings20opisthotonos17ophiological20overmounting18overreckoned22ophiologists18ophiomorphic26oxycephalies29overmultiply22overstinking20oxycephalous29ommatophores21overblankets21ophiophagous23organismally18ophiophilist22overrefining19orchidectomy25obstipations16organistrums15obstreperate16overidealise16obstrictions16obstropalous16overfineness18overweathers21obstropulous16oracularness14overfinished22octahedrites18ophthalmists22orthoborates17overweenings19overniceness17organogenies14omnificences21orthocentres17overflourish21overinclined18orthocephaly25organography22osteichthyan23over-crowdingoverbounding19overstriking20omniparities16orthocousins17overripeness17organologist14overflowings22overofficing24overripening18octaploidies17outcraftying21obtemperated19obtemperates18opinionately17oenophilists17orthodromics20outreddening15opsonisation14orthodromies18opsonization23opinionators14oxysulphides28overbridging20overorganise16outmarriages15overdeviated20objectivated27overdeviates19objectivates26oversubtlety20octastichons19oleandraceaeobtestations14octastichous19outcrossings15overfondness19out-migrationoctastrophic21overinsuring16overbrimming22objectivised27orthognathic21objectivises26opisthodomoi20opisthodomos20osteodermous15outmeasuring15outstraining13osmoreceptoroutmodedness16overfreedoms21opisthograph23overwresting19overwrestled19obtruncating17overfreights22overwrestles18osteogenetic15objectivized36objectivizes35octillionths17opisthotonic19overswearing19oncorhynchusoverfullness18overpainting18orbicularity19oleographies18omphalomancy26oleomargarin15orthographer21overfundings20orichalceous19overswelling19octogenaries15opotherapies19osteomalacic18overkindness20overswimming23orthomorphic24offendresses19orientalised13orientalises12overburthens20oppignerated18orthopaedies18overschutcht25ostariophysioppignerates17outorganised14osteichthyesoutorganises13oophoritises17oppignorated18overdraughts20ozonisations21obumbrations18oppignorates17octopetalous16overlaboured18overscutched23odontophorusornithischiaornithogalum18olfactometry22overcanopied20overcanopies19open-collaredolfactronics19oligodactylyoligodendriaoverperching23ornithomimidovercrossingoctosepalous16orthopraxies24octostichous19outsweetened16overdelicateoutpassioned15overcarrying21overpictured20overpictures19oligospermia17officialties20overlaunched21overlaunches20overcatching23overpitching23oligochromes20orthopterous17oedogonialesobliquations23one-billionthosteopathist17olive-coloredoctuplicates18ovariotomist17orchestrinas17overthrowers21overglancing19oppressingly20orchestrions17ostracisable16osteostracanoligopeptide18overleathers18orphenadrineoverthwarted22oppugnancies19overglooming19overleavened19ostracizable25overshowered22oesophagitis18obliviscence21oneirocritic16orchidomania20one-hundredthorthotoneses15orthotonesis15oneirodynias16obmutescence20oneirologies13one-millionthorthotropies17ostracodermiorthotropism19orthovanadic21overabounded19overskipping24outblustered15ornamentists14oryctologies18ostreophages18overgrainers16orthodontureopeidoscopes19overgraining17one-sixteenthoverprepared20overprepares19overgrassing17obreptitious16overtowering19occultnesses16overcoatings18overgrazings26overlockings22overpressing18overgreening17one-upmanshipoutercourses14overcoloured18orthopaedist18ornithomancy22overanalysed19obscurements18old-fashionedorthopedical20ornithomorph22outfangthief22outbreathing18oneiromancer16optimalising17ornithophily23orthopristisovertripping20organ-grinderosculatories14ornithosaurs15obsecrations16odontogenies14optimalizing26ornithoscopy22
Phrases (138)
old ironsidesold line stateotolith organorder odonataold school tieotto sverdrupold wives' taleoblique angleold world cootonto function ...
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