12-Letter Words Starting with O
We found 419 12-letter words starting with O. Common examples are OBSERVATIONS, OBSTETRICIAN, OCCASIONALLY, OCCUPATIONAL. Bold words are common everyday words; the number shows Scrabble points.
419words
OBJECTIFYINGtop score (30 pts)
OBSERVATIONScommon word
12-letter words (419)
- observations17
- obstetrician16
- occasionally19
- occupational18
- orchestrated18
- organisation13
- organization22
- orienteering13
- orthodontist16
- otherworldly22
- outrageously16
- overachiever23
- overestimate17
- overreacting18
- overreaction17
- overstepping20
- overwhelming24
- oafishnesses18
- oarsmanships19
- obdurateness15
- obfuscations19
- objectifying30
- objectivisms28
- objectivists26
- objurgations22
- oblanceolate16
- oblatenesses14
- obligatorily18
- obligingness16
- obliterating15
- obliteration14
- obliterative17
- obliterators14
- obnubilating17
- obnubilation16
- obscurantism18
- obscurantist16
- obscurations16
- obsequiously26
- obsolescence18
- obsoleteness14
- obstreperous16
- obstructions16
- obstructives19
- obtusenesses14
- occidentally20
- occultations16
- oceanography23
- oceanologies15
- oceanologist15
- ochlocracies21
- octahedrally21
- octapeptides19
- octogenarian15
- octosyllabic21
- octosyllable19
- odiousnesses13
- odontoblasts15
- officeholder24
- officialdoms23
- officialeses20
- officialisms22
- officiations20
- offishnesses21
- offscourings21
- oleaginously16
- oleandomycin20
- oleoresinous12
- olfactometer19
- oligarchical20
- oligochaetes18
- oligophagies19
- oligophagous19
- oligopsonies15
- oligotrophic20
- omnipotences18
- omnipotently19
- omnipresence18
- omnisciences18
- omnisciently19
- omnivorously20
- oncogenicity20
- oncornavirus17
- onomastician16
- onomatopoeia16
- onomatopoeic18
- onychophoran25
- oophorectomy24
- opalescences18
- opalescently19
- opaquenesses23
- openhandedly22
- operatically19
- operationism16
- operationist14
- operatorless14
- opinionative17
- opportunisms18
- opportunists16
- opposability21
- oppositeness16
- oppositional16
- oppressively22
- optimalities16
- optimisation16
- optimization25
- optometrists16
- oratorically17
- orchestrally20
- orchestrater17
- orchestrates17
- orchestrator17
- orchidaceous20
- ordinariness13
- organicities15
- organoleptic17
- organologies14
- orientalisms14
- orientalists12
- orientalized22
- orientalizes21
- orientations12
- originations13
- orismologies15
- ornamentally17
- ornatenesses12
- ornerinesses12
- ornithologic18
- ornithopters17
- orographical20
- oropharynges21
- oropharynxes27
- orotundities13
- orthocenters17
- orthodontias16
- orthodontics18
- orthogeneses16
- orthogenesis16
- orthogenetic18
- orthogonally19
- orthographic23
- orthopaedics20
- orthopedists18
- orthopterans17
- orthopterist17
- orthopteroid18
- orthorhombic24
- orthotropous17
- oscillations14
- oscillograms17
- oscillograph20
- oscilloscope18
- osmolalities14
- osmolarities14
- ossification17
- ostentations12
- ostentatious12
- osteoblastic16
- osteoclastic16
- osteogeneses13
- osteogenesis13
- osteological15
- osteologists13
- osteomalacia16
- osteopathies17
- osteoplastic16
- osteoporoses14
- osteoporosis14
- osteoporotic16
- osteosarcoma16
- ostracoderms17
- otiosenesses12
- otoscleroses14
- otosclerosis14
- outachieving21
- outbalancing17
- outbargained16
- outbreedings16
- outbuildings16
- outcavilling18
- outcompeting19
- outcroppings19
- outdatedness14
- outdelivered17
- outdesigning15
- outdistanced16
- outdistances15
- outgeneraled14
- outglittered14
- outgoingness14
- outintrigued14
- outintrigues13
- outlandishly19
- outmaneuvers17
- outnumbering17
- outorganized23
- outorganizes22
- outperformed20
- outplacement18
- outpoliticks20
- outpopulated17
- outpopulates16
- outpreaching20
- outproducing18
- outpromising17
- outrebounded16
- outreproduce17
- outrivalling16
- outsiderness13
- outsourcings15
- outsparkling19
- outspreading16
- outsprinting15
- outstretched18
- outstretches17
- outstripping17
- outthrobbing20
- outthrusting16
- outwrestling16
- ovariotomies17
- overabstract19
- overabundant18
- overachieved24
- overachieves23
- overactivity23
- overanalyses18
- overanalysis18
- overanalyzed28
- overanalyzes27
- overarousals15
- overarranged17
- overarranges16
- overasserted16
- overbalanced20
- overbalances19
- overbleached23
- overbleaches22
- overborrowed21
- overbrowsing21
- overbuilding19
- overburdened19
- overcapacity24
- overcastings18
- overcautions17
- overcautious17
- overcharging22
- overchilling21
- overclaiming20
- overclassify23
- overcleaning18
- overclearing18
- overclouding19
- overcoaching23
- overcompress21
- overconcerns19
- overconsumed20
- overconsumes19
- overcontrols17
- overcorrects19
- overcounting18
- overcramming22
- overcritical19
- overcropping22
- overcrowding22
- overdecorate18
- overdesigned18
- overdevelops21
- overdirected19
- overdiscount18
- overdocument20
- overdominant18
- overdramatic20
- overdressing17
- overdrinking21
- overeducated19
- overeducates18
- overemphases22
- overemphasis22
- overemphatic24
- overenamored18
- overengineer16
- overenrolled16
- overequipped29
- overexciting25
- overexercise24
- overexerting23
- overexertion22
- overexpanded26
- overexplains24
- overexplicit26
- overexploits24
- overexposing25
- overexposure24
- overextended24
- overfamiliar20
- overfatigued20
- overfatigues19
- overfavoring22
- overfocusing21
- overfocussed21
- overfocusses20
- overfulfills21
- overgarments18
- overgenerous16
- overgoverned20
- overhandling20
- overharvests21
- overhuntings19
- overidealize25
- overidentify22
- overindulged18
- overindulges17
- overinflated19
- overinflates18
- overinformed21
- overinsuring16
- overissuance17
- overlaboring18
- overlearning16
- overlengthen19
- overlighting20
- overliterary18
- overlordship21
- overmanaging19
- overmannered18
- overmastered18
- overmatching23
- overmaturity20
- overmedicate20
- overmodestly21
- overnighters19
- overnighting20
- overoperated18
- overoperates17
- overoptimism21
- overoptimist19
- overorganize25
- overornament17
- overpackaged25
- overpackages24
- overpayments22
- overpedaling19
- overpedalled19
- overpeopling20
- overpersuade18
- overplanning18
- overplanting18
- overplotting18
- overpopulate19
- overpowering21
- overpraising18
- overpressure17
- overprinting18
- overproduced21
- overproduces20
- overprograms20
- overpromised20
- overpromises19
- overpromoted20
- overpromotes19
- overprotects19
- overreachers20
- overreaching21
- overregulate16
- overreliance17
- overreported18
- overresponds18
- oversanguine16
- oversaturate15
- overserviced21
- overservices20
- overshadowed23
- overshooting19
- oversimplify25
- overslaughed20
- oversleeping18
- overslipping20
- overspenders18
- overspending19
- overstaffing22
- overstirring16
- overstocking22
- overstrained16
- overstressed16
- overstresses15
- overstrewing19
- overstridden17
- overstriding17
- overstriking20
- overstuffing22
- oversupplied20
- oversupplies19
- oversweetens18
- overswinging20
- overtaxation22
- overthinking23
- overthrowing22
- overtightens19
- overtraining16
- overtreating16
- overtrimming20
- overtrumping20
- overutilized25
- overutilizes24
- overvoltages19
- overwatering19
- overweighing23
- overweighted23
- overwintered19
- overwithheld25
- overwithhold25
- ovipositions17
- owlishnesses18
- oxalacetates21
- oxaloacetate21
- oxyacetylene27
- oxygenations23
- ozonizations30
- ozonospheres26
Related word lists
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Frequently asked questions
How many 12-letter words starting with O are there?
There are 419 12-letter words starting with O in our word list, for example OBSERVATIONS.
What is the highest scoring 12-letter word starting with o in Scrabble?
OBJECTIFYING scores 30 points in Scrabble (before bonus squares) and 35 points in Words With Friends.