Infinite Wordplay › 9 Letter Words › Starting With O
9 Letter Words Starting With O
This list does three jobs: narrowing down a guess in a Wordle-style game, filling in a crossword, and checking whether a word is real. It has 970 nine-letter words that start with O, with the 54 common ones (operation, otherwise, ourselves, offensive) first.
After O, the most common second letter is U: 289 of these words start with OU. On average a word here has 3.8 vowels, and the most frequent other vowel is E (in 719 words). 84% repeat a letter, like operation. The most common ending is -ES (149 words).
Filter these 970 words
Type letters to filter as you go. Repeat a letter (EE) to ask for two of it.
Common 9-letter words starting with O (54)
Everyday words, most common first. Only these can be the answer in our daily puzzle.
- operation
- otherwise
- ourselves
- offensive
- ownership
- objective
- overnight
- orchestra
- obsession
- operative
- oversight
- objection
- offspring
- overthrow
- ordinance
- organizer
- obedience
- obsessive
- overboard
- oxidation
- obnoxious
- orphanage
- originate
- occupancy
- outspoken
- oblivious
- orthodoxy
- obscurity
- onslaught
- overdrive
- overwhelm
- ombudsman
- overgrown
- observant
- olfactory
- outnumber
- oligarchy
- overpower
- overdraft
- overblown
- overreact
- orangutan
- occlusion
- opportune
- oppressor
- obstinate
- outermost
- overthink
- overstate
- octagonal
- officiate
- outgrowth
- overreach
- optometry
Tip: try observant as your next guess. It tests 9 different letters that are common in this group. Since 84% of these words repeat a letter, try a double when nothing else fits.
All 9-letter words starting with O (970)
From A to Z, including plurals and other forms that count as guesses.
oakmosses oarfishes oarswoman oarswomen oasthouse obbligati obbligato obcordate obeahisms obedience obeisance obelising obelizing obeseness obesities obfuscate objectify objecting objection objective objectors objurgate oblations obligated obligates obligator obligatos obliquely obliquing obliquity oblivions oblivious obloquial obloquies obnoxious obreption obscenely obscenest obscenity obscurant obscurely obscurest obscuring obscurity obsecrate obsequent obsequies observant observers observing obsessing obsession obsessive obsessors obsidians obsolesce obsoleted obsoletes obstacles obstetric obstinacy obstinate obstructs obstruent obtainers obtaining obtesting obtruders obtruding obtrusion obtrusive obtunding obturated obturates obturator obumbrate obversely obverting obviating obviation obviators obviously occasions occidents occipital occluding occlusion occlusive occulters occulting occultism occultist occupancy occupants occupiers occupying occurrent occurring oceanaria oceanauts ochlocrat ocotillos octachord octagonal octahedra octameter octangles octastyle octennial octillion octoploid octopodes octopuses octoroons octothorp octuplets octupling ocularist odalisque oddnesses oddsmaker odographs odometers odontoids odorizing odorously oedipally oeillades oenophile oesophagi oestriols oestrones oestruses offenders offending offensive offerings offertory offhanded officered officials officiant officiary officiate officinal officious offloaded offprints offscreen offshoots offspring offstages oganesson oghamists ohmically ohmmeters oilcloths oilfields oilpapers oilstones ointments oiticicas okeydokey oldnesses oldsquaws oldstyles oleaceous oleanders oleasters olecranon oleograph oleoresin olfaction olfactory olibanums oligarchs oligarchy oligomers oligopoly oligurias olivenite ololiuqui olympiads ombudsman ombudsmen omelettes ominously omissible omissions ommatidia omniarchs omnibuses omnirange omnivores omophagia onanistic oncidiums oncogenes oncogenic oncologic oncomings ondograms onenesses onerously onionskin onlookers onlooking onomastic onrushing onslaught ontically ontogenic oogametes oogeneses oogenesis oogenetic oogoniums oolachans oological oologists oompahing oospheres opacified opacifies opacities opalesced opalesces openworks operagoer operantly operatics operating operation operative operators operceles opercular opercules operculum operettas operosely ophidians ophiology ophiuroid opinioned opiumisms oppilated oppilates opponents opportune opposable opposites oppressed oppresses oppressor oppugnant oppugners oppugning opsonized opsonizes optatives optically opticians opticists optimally optimised optimises optimisms optimists optimized optimizer optimizes optionals optionees optioning optometer optometry opulences opulently opuscules opusculum oralities orangeade orangerie orangiest orangutan oratories oratorios oratrices orbicular orchestra ordainers ordaining orderable orderings orderless orderlies ordinance ordinands ordinates ordnances organdies organelle organised organiser organises organisms organists organized organizer organizes organzine orgiastic oribatids orientals orientate orienteer orienting orificial oriflamme origanums originals originate orinasals ornaments orneriest ornithine orogenies orography orologies orometers orphanage orphaning orpiments orrisroot orthicons orthodoxy orthoepic orthopter orthoptic orthotics orthotist oscillate oscitancy osculated osculates osmeteria osmically osmometer osmometry osnaburgs ossicular ossifiers ossifrage ossifying ossuaries ostensive ostensory osteocyte osteology osteomata osteopath osteotome osteotomy ostiaries ostinatos ostosises ostracise ostracism ostracize ostracode ostracods ostriches otherness otherwise otocystic otolithic otologies otoplasty otoscopes oubliette ouistitis ourselves outacting outadding outargued outargues outasking outbaking outbarked outbawled outbeamed outbegged outbidden outblazed outblazes outbleats outblooms outbluffs outboards outboasts outbought outboxing outbraved outbraves outbrawls outbreaks outbreeds outbribed outbribes outbuilds outbulked outburned outbursts outbuying outcapers outcastes outcaught outcavils outcharge outcharms outcheats outchided outchides outclimbs outcooked outcounts outcrawls outcrowed outcrying outcursed outcurses outcurves outdanced outdances outdaring outdating outdazzle outdebate outdesign outdodged outdodges outdoorsy outdreams outdreamt outdrinks outdriven outdrives outdueled outearned outeating outechoed outechoes outercoat outermost outerwear outfabled outfables outfacing outfasted outfawned outfeasts outfields outfights outfigure outfiring outfished outfishes outfitted outfitter outflanks outflowed outflying outfooled outfooted outfought outfoxing outfrowns outfumble outgained outgassed outgasses outgiving outglared outglares outglowed outgnawed outgoings outgroups outgrowth outguards outguided outguides outgunned outgushes outhomers outhouses outhowled outhumors outhunted outhustle outjinxed outjinxes outjumped outjutted outkicked outkilled outkissed outkisses outlander outlasted outlaughs outlawing outlaying outleaped outlearns outlearnt outliners outlining outlivers outliving outloving outmanned outmoding outmoving outmuscle outnumber outpacing outpaints outpassed outpasses outpitied outpities outplaced outplaces outplayed outpoints outpolled outpoured outpowers outprayed outpreach outpreens outpriced outprices outpulled outpushed outpushes outputted outquoted outquotes outracing outraging outraised outraises outrances outranged outranges outranked outrating outraving outreason outridden outriders outriding outrigger outrivals outroared outrocked outrolled outrooted outrowing outrushed outrushes outsailed outsavors outscheme outscolds outscoops outscored outscores outscorns outseeing outserved outserves outshamed outshames outshined outshines outshoots outshouts outsiders outsights outsinned outskated outskates outskirts outsleeps outslicks outsmarts outsmiled outsmiles outsmoked outsmokes outsnored outsnores outsoared outsource outspeaks outspeeds outspells outspends outspoken outspread outsprint outstands outstared outstares outstarts outstated outstates outstayed outsteers outstride outstrips outstrode outstunts outsulked outswears outtalked outtasked outthanks outthinks outthrobs outthrown outthrows outthrust outtowers outtraded outtrades outtricks outtrumps outvalued outvalues outvaunts outvoiced outvoices outvoting outwaited outwalked outwardly outwarred outwashes outwasted outwastes outweighs outwhirls outwiling outwilled outwinded outwished outwishes outwitted outworked outworker outwrites outyelled outyelped outyields ovalbumin ovalities ovarioles ovenbirds ovenproof ovenwares overacted overalert overalled overarmed overawing overbaked overbakes overbears overbeats overbills overbites overblown overblows overboard overboils overbooks overborne overbrief overbroad overbuild overbuilt overburns overburnt overcalls overcasts overcheck overchill overclaim overclean overclear overcloud overcoach overcoats overcomer overcomes overcooks overcools overcount overcrams overcrops overcrowd overcured overcures overdared overdares overdecks overdoers overdoing overdosed overdoses overdraft overdrank overdrawn overdraws overdress overdried overdries overdrink overdrive overdrove overdrunk overeager overeaten overeater overedits overemote overexert overfavor overfears overfeeds overfills overflies overflown overflows overfocus overfunds overfussy overgilds overgirds overglaze overgoads overgraze overgrown overgrows overhands overhangs overhappy overhasty overhated overhates overhauls overheads overheaps overheard overhears overheats overholds overhoped overhopes overhunts overhyped overhypes overissue overjoyed overkills overlabor overladed overladen overlades overlands overlarge overleaps overleapt overlearn overlends overlight overlived overlives overloads overlooks overlords overloved overloves overlying overmatch overmelts overmilks overmined overmines overmixed overmixes overnight overpedal overplaid overplans overplant overplays overplied overplies overplots overpower overprice overprint overprize overproof overproud overpumps overrated overrates overreach overreact overrides overrigid overripen overroast overruffs overruled overrules oversales oversalts oversauce oversaved oversaves overscale overscore overseeds overseers oversells oversewed oversexed overshare oversharp overshine overshirt overshoes overshoot overshots oversides oversight oversized oversizes overskirt oversleep overslept overslips overslipt oversmoke oversoaks oversouls overspend overspent overspill overspins overstaff overstate overstays oversteer oversteps overstirs overstock overstory overstrew overstudy overstuff oversweet overswing overswung overtaken overtakes overtalks overtasks overtaxed overtaxes overthink overthrew overthrow overtimed overtimes overtired overtires overtness overtoils overtones overtrade overtrain overtreat overtrick overtrims overtrump overtured overtures overturns overurged overurges overusing overvalue overviews overvivid overvoted overvotes overwarms overwater overwears overweary overweens overweigh overwhelm overwinds overwords overworks overwound overwrite overwrote overzeals oviductal oviparity oviparous oviposits ovotestes ovotestis ovulating ovulation ovulatory ownerless ownership oxacillin oxalating oxazepams oxidating oxidation oxidative oxidisers oxidising oxidizers oxidizing oxpeckers oxtongues oxygenate oxygenous oxymorons oxyphiles oxyphilic oxytocics oxytocins oysterers oystering oysterman oystermen ozocerite ozokerite ozonating ozonation ozonising ozonizers ozonizing
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More 9-letter word lists with O
Frequently asked questions
How many nine-letter words start with O?
Our dictionary has 970, which is 3.6% of all nine-letter words. 54 of them are common words that can be the daily answer; the rest are valid guesses.
What is the most common nine-letter word starting with O?
Going by how often words appear in everyday English, operation, followed by otherwise and obviously.
What is a good guess from this list?
Try observant. It has 9 different letters, all common in this group, so one guess tells you a lot. 84% of these words repeat a letter, so keep doubles in mind later.