Found 439 12-letter words starting with O
Highest Scrabble Score
The highest scoring 12-letter word starting with O in Scrabble:
OBJECTIFYING30 ptsHighest Words With Friends Score
The highest scoring 12-letter word starting with O in WWF:
OBJECTIFYING35 ptsAbout 12-Letter Words Starting With O
This list contains valid 12-letter words that begin with O. Longer words score higher in Scrabble due to premium tiles and the 50-point bingo bonus. Each word links to its definition page with anagrams and game scores.
12-Letter Words Starting With O
objectifying30ozonizations30outjockeying29overequipped29objectivisms28overanalyzed28oropharynxes27overanalyzes27oxyacetylene27objectivists26obsequiously26overexpanded26overexplicit26ozonospheres26onychophoran25optimization25overexciting25overexposing25overidealize25overorganize25overpackaged25oversimplify25overutilized25overwithheld25overwithhold25officeholder24oophorectomy24orthorhombic24outbrazening24overachieved24overcapacity24overemphatic24overexercise24overexplains24overexploits24overexposure24overextended24overpackages24overutilizes24overwatching24overwhelming24oceanography23officialdoms23opaquenesses23orthographic23outorganized23overachiever23overachieves23overactivity23overbleached23overclassify23overcoaching23overexerting23overmatching23overshadowed23overthinking23overweighing23overweighted23oxygenations23objurgations22officialisms22openhandedly22oppressively22organization22orientalized22otherworldly22outorganizes22overbleaches22overcharging22overcramming22overcropping22overcrowding22overemphases22overemphasis22overexertion22overfavoring22overidentify22overpayments22overstaffing22overstocking22overstuffing22overtaxation22overthrowing22overwearying22ochlocracies21octahedrally21octosyllabic21offishnesses21offscourings21opposability21orientalizes21oropharynges21outachieving21overborrowed21overbriefing21overbrowsing21overchilling21overcompress21overdevelops21overdrinking21overfocusing21overfocussed21overfulfills21overharvests21overinformed21overlordship21overmodestly21overoptimism21overpowering21overproduced21overreaching21overserviced21overteaching21oxalacetates21oxaloacetate21occidentally20officialeses20officiations20oleandomycin20oligarchical20oligotrophic20omnivorously20oncogenicity20orchestrally20orchidaceous20orographical20orthopaedics20oscillograph20outperformed20outpoliticks20outpreaching20outthrobbing20overbalanced20overclaiming20overconsumed20overdocument20overdramatic20overfamiliar20overfatigued20overflooding20overfocusses20overgoverned20overhandling20overlighting20overmaturity20overmedicate20overnighting20overpeopling20overproduces20overprograms20overpromised20overpromoted20overreachers20overservices20overslaughed20overslipping20overstepping20overstudying20oversupplied20overswinging20overtrimming20overtrumping20oarsmanships19obfuscations19obstructives19occasionally19octapeptides19octosyllable19olfactometer19oligophagies19oligophagous19omnipotently19omnisciently19opalescently19operatically19orthogonally19outcompeting19outcroppings19outlandishly19outreckoning19outsparkling19overabstract19overbalances19overbreeding19overbuilding19overburdened19overclouding19overconcerns19overconsumes19overcorrects19overcritical19overdirected19overeducated19overfatigues19overhonoring19overhuntings19overinflated19overlengthen19overmanaging19overnighters19overoptimist19overpedaling19overpedalled19overpopulate19overpromises19overpromotes19overprotects19overshooting19overspending19overstrewing19oversupplies19overtightens19overvoltages19overwatering19overwintered19oafishnesses18obligatorily18obscurantism18obsolescence18occupational18oligochaetes18omnipotences18omnipresence18omnisciences18onomatopoeic18opalescences18opportunisms18orchestrated18ornithologic18orthodontics18orthogenetic18orthopedists18orthopteroid18oscilloscope18outcavilling18outplacement18outproducing18outstretched18overabundant18overanalyses18overanalysis18overcastings18overcleaning18overclearing18overcoloring18overcounting18overdecorate18overdesigned18overdiscount18overdominant18overeducates18overenamored18overgarments18overindulged18overinflates18overlaboring18overliterary18overmannered18overmastered18overoperated18overpersuade18overplanning18overplanting18overplotting18overpraising18overprinting18overreacting18overreported18overresponds18oversleeping18overspenders18overspilling18oversweetens18owlishnesses18obliterative17obnubilating17observations17oncornavirus17opinionative17oratorically17orchestrater17orchestrates17orchestrator17organoleptic17ornamentally17ornithopters17orthocenters17orthopterans17orthopterist17orthotropous17oscillograms17ossification17osteopathies17ostracoderms17outbalancing17outdelivered17outmaneuvers17outnumbering17outpopulated17outpromising17outreproduce17outscreaming17outstretches17outstripping17ovariotomies17overarranged17overcautions17overcautious17overcontrols17overdressing17overestimate17overindulges17overissuance17overoperates17overornament17overpressure17overreaction17overreliance17overstridden17overstriding17ovipositions17oblanceolate16obligingness16obnubilation16obscurantist16obscurations16obstetrician16obstreperous16obstructions16occultations16oleaginously16onomastician16onomatopoeia16operationism16opportunists16oppositeness16oppositional16optimalities16optimisation16optometrists16orthodontias16orthodontist16orthogeneses16orthogenesis16osteoblastic16osteoclastic16osteomalacia16osteoplastic16osteoporotic16osteosarcoma16outbargained16outbreedings16outbuildings16outdistanced16outgalloping16outpopulates16outrageously16outrebounded16outrivalling16outspreading16outspringing16outthrusting16outtraveling16outtravelled16outwrestling16overarranges16overasserted16overengineer16overenrolled16overgenerous16overlearning16overregulate16overroasting16oversanguine16oversteering16overstirring16overstrained16overstressed16overtraining16overtreating16obdurateness15obliterating15oceanologies15oceanologist15octogenarian15odontoblasts15oligopsonies15organicities15orismologies15osteological15outdesigning15outdistances15outmastering15outsourcings15outsprinting15overarousals15oversaturate15overstresses15oblatenesses14obliteration14obliterators14obsoleteness14obtusenesses14operationist14operatorless14organologies14orientalisms14oscillations14osmolalities14osmolarities14osteoporoses14osteoporosis14otoscleroses14otosclerosis14outdatedness14outgeneraled14outglittered14outgoingness14outintrigued14odiousnesses13ordinariness13organisation13orienteering13originations13orotundities13osteogeneses13osteogenesis13osteologists13outintrigues13outreasoning13outsiderness13oleoresinous12orientalists12orientations12ornatenesses12ornerinesses12ostentations12ostentatious12otiosenesses12