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10-letter words with O as the 1st letter

A curated list of 10-letter words tailored to this exact pattern. Use this when O is fixed in the 1st slot; rotate high-frequency consonants elsewhere to prune fast. For example: oafishness, oasthouses, obbligatos.

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791 words

Word	Length	Syllables
oafishness	10	3
oasthouses	10	3
obbligatos	10	4
obduracies	10	4
obdurately	10	5
obediences	10	4
obediently	10	4
obeisances	10	4
obeisantly	10	4
obfuscated	10	4
obfuscates	10	4
obituaries	10	4
obituarist	10	4
objections	10	3
objectives	10	4
objectless	10	3
objurgated	10	4
objurgates	10	4
oblateness	10	4
obligately	10	5
obligating	10	4
obligation	10	4
obligatory	10	5
obligingly	10	4
obliterate	10	4
obnubilate	10	4
obscurants	10	3
obsequious	10	3
observable	10	3
observably	10	4
observance	10	3
observants	10	3
obsessions	10	3
obsessives	10	4
obsolesced	10	4
obsolesces	10	4
obsoletely	10	5
obsoleting	10	4
obstetrics	10	3
obstructed	10	3
obstructor	10	3
obtainable	10	3
obtainment	10	3
obtrusions	10	3
obturating	10	4
obturation	10	4
obturators	10	4
obtuseness	10	4
obtusities	10	4
obviations	10	3
occasional	10	4
occasioned	10	4
occidental	10	4
occipitals	10	4
occlusions	10	3
occultisms	10	3
occultists	10	3
occupation	10	4
occurrence	10	3
occurrents	10	3
oceanarium	10	4
oceanfront	10	3
oceangoing	10	3
oceanology	10	5
ochlocracy	10	4
ochlocrats	10	3
octahedral	10	4
octahedron	10	4
octameters	10	4
octarchies	10	3
octillions	10	3
octonaries	10	4
octoploids	10	3
octothorps	10	3
ocularists	10	4
oculomotor	10	5
odalisques	10	4
oddsmakers	10	3
odiousness	10	3
odometries	10	4
oecologies	10	4
oenologies	10	4
oenophiles	10	4
oesophagus	10	4
offensives	10	4
officering	10	4
officially	10	4
officiants	10	3
officiated	10	4
officiates	10	4
offishness	10	3
offloading	10	3
offprinted	10	3
offsetting	10	3
offsprings	10	2
oftentimes	10	4
oilinesses	10	4
oinologies	10	4
oldfangled	10	3
oleaginous	10	4
olecranons	10	4
oleographs	10	3
oleoresins	10	4
olfactions	10	3
oligarchic	10	4
oligoclase	10	4
oligomeric	10	5
oligophagy	10	5
oligopsony	10	5
olivaceous	10	4
olivenites	10	5
olivinitic	10	5
ololiuquis	10	4
ommatidial	10	4
ommatidium	10	4
omnificent	10	4
omnipotent	10	4
omniranges	10	4
omniscient	10	3
omnivorous	10	4
omophagies	10	4
oncologies	10	4
oncologist	10	4
onionskins	10	3
onomastics	10	4
onslaughts	10	2
ontogenies	10	4
ontologies	10	4
ontologist	10	4
oozinesses	10	4
opacifying	10	4
opalescent	10	4
opalescing	10	4
opaqueness	10	4
openhanded	10	4
opennesses	10	4
operagoers	10	4
operagoing	10	4
operations	10	4
operatives	10	5
operculars	10	4
operculate	10	4
operculums	10	4
operettist	10	4
ophiuroids	10	3
ophthalmia	10	3
ophthalmic	10	3
oppilating	10	4
opposeless	10	4
oppositely	10	5
opposition	10	4
oppressing	10	3
oppression	10	3
oppressive	10	3
oppressors	10	3
opprobrium	10	3
opsonified	10	4
opsonifies	10	4
opsonizing	10	4
optatively	10	5
optimality	10	5
optimising	10	4
optimistic	10	4
optimizers	10	4
optimizing	10	4
optionally	10	4
optometric	10	4
opulencies	10	4
oracularly	10	5
orangeades	10	4
orangeries	10	4
orangewood	10	4
orangutans	10	4
oratorical	10	5
oratresses	10	4
orbiculate	10	4
orchardist	10	3
orchestral	10	3
orchestras	10	3
orchidlike	10	3
orchitises	10	4
ordainment	10	3
ordinances	10	4
ordinarier	10	4
ordinaries	10	4
ordinarily	10	5
ordination	10	4
ordonnance	10	3
organelles	10	4
organicism	10	4
organicist	10	4
organicity	10	5
organisers	10	4
organising	10	4
organismal	10	4
organismic	10	4
organizers	10	4
organizing	10	4
organology	10	5
organzines	10	4
orientally	10	4
orientated	10	4
orientates	10	4
orienteers	10	3
oriflammes	10	4
originally	10	5
originated	10	5
originates	10	5
originator	10	5
orismology	10	5
ornamental	10	4
ornamented	10	4
ornateness	10	4
orneriness	10	4
ornithines	10	4
ornithopod	10	4
ornithoses	10	4
ornithosis	10	4
orogeneses	10	5
orogenesis	10	5
orogenetic	10	5
orographic	10	4
oropharynx	10	4
orotundity	10	5
orphanages	10	4
orphanhood	10	3
orphically	10	4
orrisroots	10	3
orthoclase	10	3
orthodoxes	10	4
orthodoxly	10	4
orthoepies	10	3
orthoepist	10	3
orthogonal	10	4
orthograde	10	3
orthopedic	10	4
orthoptera	10	4
orthotists	10	3
oscillated	10	4
oscillates	10	4
oscillator	10	4
osculating	10	4
osculation	10	4
osculatory	10	5
osmeterium	10	4
osmiridium	10	4
osmolality	10	5
osmolarity	10	5
osmometers	10	4
osmometric	10	4
ossifrages	10	4
osteitides	10	4
ostensible	10	3
ostensibly	10	4
ostensoria	10	4
osteoblast	10	3
osteoclast	10	3
osteocytes	10	4
osteogenic	10	4
osteopaths	10	3
osteopathy	10	4
osteosises	10	4
ostracised	10	4
ostracises	10	4
ostracisms	10	3
ostracized	10	4
ostracizes	10	4
ostracodes	10	4
otherguess	10	3
otherwhere	10	3
otherwhile	10	3
otherworld	10	3
otioseness	10	4
otiosities	10	4
otoscopies	10	4
oubliettes	10	3
outachieve	10	3
outarguing	10	3
outbalance	10	3
outbargain	10	3
outbarking	10	3
outbawling	10	3
outbeaming	10	3
outbegging	10	3
outbidding	10	3
outbitched	10	3
outbitches	10	3
outblazing	10	3
outbleated	10	3
outblessed	10	3
outblesses	10	3
outbloomed	10	3
outbluffed	10	3
outblushed	10	3
outblushes	10	3
outboasted	10	3
outbragged	10	3
outbraving	10	3
outbrawled	10	3
outbribing	10	3
outbulking	10	3
outbullied	10	3
outbullies	10	3
outburning	10	3
outcapered	10	4
outcatches	10	3
outcaviled	10	4
outcharged	10	3
outcharges	10	3
outcharmed	10	3
outcheated	10	3
outchidden	10	3
outchiding	10	3
outclassed	10	3
outclasses	10	3
outclimbed	10	3
outcoached	10	3
outcoaches	10	3
outcompete	10	3
outcooking	10	3
outcounted	10	3
outcrawled	10	3
outcropped	10	3
outcrossed	10	3
outcrosses	10	3
outcrowing	10	3
outcursing	10	3
outdancing	10	3
outdatedly	10	4
outdazzled	10	3
outdazzles	10	3
outdebated	10	4
outdebates	10	4
outdeliver	10	4
outdesigns	10	3
outdodging	10	3
outdragged	10	3
outdrawing	10	3
outdreamed	10	3
outdressed	10	3
outdresses	10	3
outdriving	10	3
outdropped	10	3
outdueling	10	3
outduelled	10	3
outearning	10	3
outechoing	10	3
outercoats	10	3
outfabling	10	3
outfasting	10	3
outfawning	10	3
outfeasted	10	3
outfeeling	10	3
outfielder	10	3
outfigured	10	4
outfigures	10	4
outfinding	10	3
outfishing	10	3
outfitters	10	3
outfitting	10	3
outflanked	10	3
outflowing	10	3
outfooling	10	3
outfooting	10	3
outfrowned	10	3
outfumbled	10	3
outfumbles	10	3
outgaining	10	3
outgassing	10	3
outgeneral	10	4
outgivings	10	3
outglaring	10	3
outglitter	10	3
outglowing	10	3
outgnawing	10	3
outgrinned	10	3
outgrossed	10	3
outgrosses	10	3
outgrowing	10	3
outgrowths	10	2
outguessed	10	3
outguesses	10	3
outguiding	10	3
outgunning	10	3
outhearing	10	3
outhitting	10	3
outhomered	10	4
outhowling	10	3
outhumored	10	4
outhunting	10	3
outhustled	10	3
outhustles	10	3
outjinxing	10	3
outjumping	10	3
outjutting	10	3
outkeeping	10	3
outkicking	10	3
outkilling	10	3
outkissing	10	3
outlanders	10	3
outlandish	10	3
outlasting	10	3
outlaughed	10	3
outlawries	10	3
outleaping	10	3
outlearned	10	3
outmanning	10	3
outmarched	10	3
outmarches	10	3
outmatched	10	3
outmatches	10	3
outmuscled	10	3
outmuscles	10	3
outnumbers	10	3
outpainted	10	3
outpassing	10	3
outpatient	10	3
outperform	10	3
outpitched	10	3
outpitches	10	3
outpitying	10	3
outplanned	10	3
outplaying	10	2
outplodded	10	3
outplotted	10	3
outpointed	10	3
outpolling	10	3
outpouring	10	3
outpowered	10	4
outpraying	10	2
outpreened	10	3
outpressed	10	3
outpresses	10	3
outpricing	10	3
outproduce	10	3
outpromise	10	3
outpulling	10	3
outpunched	10	3
outpunches	10	3
outpushing	10	3
outputting	10	3
outquoting	10	3
outrageous	10	3
outraising	10	3
outranging	10	3
outranking	10	3
outreached	10	3
outreaches	10	3
outreading	10	3
outrebound	10	3
outriggers	10	3
outrightly	10	3
outringing	10	3
outrivaled	10	4
outroaring	10	3
outrocking	10	3
outrolling	10	3
outrooting	10	3
outrunning	10	3
outrushing	10	3
outsailing	10	3
outsavored	10	4
outschemed	10	3
outschemes	10	3
outscolded	10	3
outscooped	10	3
outscoring	10	3
outscorned	10	3
outselling	10	3
outserving	10	3
outshaming	10	3
outshining	10	3
outshouted	10	3
outsinging	10	3
outsinning	10	3
outsitting	10	3
outskating	10	3
outslicked	10	3
outsmarted	10	3
outsmiling	10	3
outsmoking	10	3
outsnoring	10	3
outsoaring	10	3
outspanned	10	3
outsparkle	10	2
outspeeded	10	3
outspelled	10	3
outspreads	10	2
outsprints	10	2
outstaring	10	3
outstarted	10	3
outstating	10	3
outstation	10	3
outstaying	10	2
outsteered	10	3
outstretch	10	2
outstrides	10	3
outstudied	10	3
outstudies	10	3
outstunted	10	3
outsulking	10	3
outtalking	10	3
outtasking	10	3
outtelling	10	3
outthanked	10	3
outthought	10	2
outthrusts	10	2
outtowered	10	4
outtrading	10	3
outtricked	10	3
outtrotted	10	3
outtrumped	10	3
outvaluing	10	3
outvaunted	10	3
outvoicing	10	3
outwaiting	10	3
outwalking	10	3
outwarring	10	3
outwasting	10	3
outwatched	10	3
outwatches	10	3
outwearied	10	3
outwearies	10	3
outwearing	10	3
outweeping	10	3
outweighed	10	3
outwhirled	10	3
outwilling	10	3
outwinding	10	3
outwishing	10	3
outwitting	10	3
outworkers	10	3
outworking	10	3
outwrestle	10	2
outwriting	10	3
outwritten	10	3
outwrought	10	2
outyelling	10	3
outyelping	10	3
outyielded	10	3
ovalbumins	10	4
ovalnesses	10	4
ovariotomy	10	5
ovaritides	10	5
overacting	10	4
overaction	10	4
overactive	10	4
overarched	10	4
overarches	10	4
overassert	10	4
overbaking	10	4
overbeaten	10	4
overbetted	10	4
overbidden	10	4
overbilled	10	4
overbleach	10	3
overblouse	10	3
overboiled	10	4
overbooked	10	4
overborrow	10	4
overbought	10	3
overbright	10	3
overbrowse	10	3
overbrutal	10	4
overbuilds	10	3
overburden	10	4
overburned	10	4
overbuying	10	3
overcalled	10	4
overcasted	10	4
overcharge	10	3
overchills	10	3
overclaims	10	3
overcleans	10	3
overclears	10	3
overclouds	10	3
overcomers	10	4
overcoming	10	4
overcommit	10	4
overcooked	10	4
overcooled	10	4
overcounts	10	3
overcrowds	10	3
overcuring	10	4
overdaring	10	4
overdecked	10	4
overdesign	10	4
overdirect	10	4
overdosage	10	4
overdosing	10	4
overdrafts	10	3
overdrinks	10	3
overdriven	10	4
overdrives	10	4
overdrying	10	3
overdubbed	10	4
overdyeing	10	3
overeaters	10	4
overeating	10	4
overedited	10	5
overemoted	10	5
overemotes	10	5
overexcite	10	4
overexerts	10	4
overexpand	10	4
overexpose	10	4
overextend	10	4
overfacile	10	4
overfavors	10	4
overfeared	10	4
overfilled	10	4
overfished	10	4
overfishes	10	4
overflight	10	3
overflowed	10	4
overflying	10	3
overfunded	10	4
overgilded	10	4
overgirded	10	4
overglazes	10	4
overgoaded	10	4
overgovern	10	4
overgrazed	10	4
overgrazes	10	4
overgrowth	10	3
overhanded	10	4
overhandle	10	3
overhating	10	4
overhauled	10	4
overheaped	10	4
overheated	10	4
overhoping	10	4
overhunted	10	4
overhyping	10	4
overinform	10	4
overinsure	10	4
overissued	10	4
overissues	10	4
overjoying	10	3
overkilled	10	4
overlabors	10	4
overlading	10	4
overlapped	10	4
overlavish	10	4
overlaying	10	3
overleaped	10	4
overlearns	10	3
overlength	10	3
overlights	10	3
overliving	10	4
overloaded	10	4
overlooked	10	4
overlorded	10	4
overloving	10	4
overmanage	10	4
overmanned	10	4
overmantel	10	4
overmaster	10	4
overmature	10	4
overmelted	10	4
overmighty	10	4
overmilked	10	4
overmining	10	4
overmixing	10	4
overmodest	10	4
overmuches	10	4
overnights	10	3
overpassed	10	4
overpasses	10	4
overpaying	10	3
overpedals	10	4
overpeople	10	3
overplaids	10	3
overplants	10	3
overplayed	10	3
overpluses	10	4
overplying	10	3
overpotent	10	4
overpowers	10	4
overpraise	10	3
overpriced	10	4
overprices	10	4
overprints	10	3
overprized	10	4
overprizes	10	4
overpumped	10	4
overrating	10	4
overreacts	10	3
overreport	10	4
overridden	10	4
overriding	10	4
overruffed	10	4
overruling	10	4
oversalted	10	4
oversauced	10	4
oversauces	10	4
oversaving	10	4
overscaled	10	4
overseeded	10	4
overseeing	10	3
oversewing	10	4
overshadow	10	4
overshirts	10	3
overshoots	10	3
oversights	10	3
oversimple	10	3
oversimply	10	4
overskirts	10	3
overslaugh	10	3
oversleeps	10	3
oversmoked	10	4
oversmokes	10	4
oversoaked	10	4
overspends	10	3
overspills	10	3
overspread	10	3
overstaffs	10	3
overstated	10	4
overstates	10	4
overstayed	10	3
oversteers	10	3
overstocks	10	3
overstrain	10	3
overstress	10	3
overstrewn	10	3
overstrews	10	3
overstride	10	3
overstrike	10	3
overstrode	10	3
overstruck	10	3
overstrung	10	3
overstuffs	10	3
oversubtle	10	3
oversudsed	10	4
oversudses	10	4
oversupped	10	4
oversupply	10	4
overswings	10	3
overtaking	10	4
overtalked	10	4
overtasked	10	4
overtaxing	10	4
overthinks	10	3
overthrown	10	3
overthrows	10	3
overtiming	10	4
overtipped	10	4
overtiring	10	4
overtoiled	10	4
overtopped	10	4
overtraded	10	4
overtrades	10	4
overtrains	10	3
overtreats	10	3
overtricks	10	3
overtrumps	10	3
overturing	10	4
overturned	10	4
overurging	10	4
overvalued	10	4
overvalues	10	4
overvoting	10	4
overwarmed	10	4
overwaters	10	4
overweened	10	4
overweighs	10	3
overweight	10	3
overwetted	10	4
overwhelms	10	3
overwinter	10	4
overworked	10	4
overwrites	10	4
oviposited	10	5
ovipositor	10	5
ovulations	10	4
owlishness	10	3
ownerships	10	3
oxacillins	10	4
oxidations	10	4
oxidizable	10	4
oxygenated	10	5
oxygenates	10	5
oxygenator	10	5
oxygenless	10	4
oxymoronic	10	5
oxyuriases	10	4
oxyuriasis	10	4
oysterings	10	3
ozocerites	10	5
ozokerites	10	5
ozonations	10	4

FAQs

How do I play around a fixed O in the 1st slot?
Try mixing common consonant clusters (ST, TR, CH) in other positions while keeping O locked.

Why are uncommon words included?
We compile from a broad English list. Skim the top rows for more common picks.