9-letter words starting with O
There are 922 nine-letter words starting with O in our dictionary. The most common are OBJECTIVE, OBVIOUSLY, OCCASIONS, OFFENSIVE and OFFICIALS.
Every word here is exactly 9 letters long and begins with O. Handy when you know the first letters and the length, as in crosswords and Wordle-style puzzles.
9-letter words starting with O
- objective23
- obviously17
- occasions13
- offensive18
- officials17
- operating12
- operation11
- operators11
- opponents13
- orchestra14
- organised11
- organized20
- otherwise15
- ourselves12
- overnight16
- ownership17
- obedience14
- objection20
- obligated13
- oblivious14
- obnoxious18
- obscurity16
- observant14
- observers14
- observing15
- obsession11
- obsessive14
- obstacles13
- obtaining12
- occupancy20
- occupants15
- occupying19
- occurring14
- offenders16
- offending17
- offerings16
- offspring18
- olfactory17
- ombudsman16
- omissions11
- onslaught13
- operative14
- opposites13
- oppressed14
- optimized23
- ordinance12
- organiser10
- organisms12
- organizer19
- organizes19
- originals10
- originate10
- ornaments11
- orphanage15
- orthodoxy23
- outbreaks15
- outbursts11
- outlining10
- outsiders10
- outskirts13
- outspoken15
- outwardly16
- overboard15
- overdrive16
- overgrown16
- overheard16
- overlooks16
- overrated13
- overruled13
- oversight16
- oversized22
- overtaken16
- overthrow18
- overwhelm20
- oxidation17
- oxidative20
- obbligato14
- obeisance13
- obfuscate16
- objectify26
- objecting21
- objectors20
- oblations11
- obligates12
- obliquely23
- obliquity23
- obscenely16
- obscenity16
- obscurely16
- obscuring14
- obsequies20
- obsessing12
- obsoleted12
- obstetric13
- obstinacy16
- obstinate11
- obstructs13
- obtrusive14
- obturator11
- obviating15
- occipital15
- occluding15
- occlusion13
- occlusive16
- occultism15
- occultist13
- occupiers15
- octagonal12
- octahedra15
- octopuses13
- octuplets13
- odalisque19
- offertory18
- officiant17
- officiate17
- officious17
- offloaded17
- offscreen17
- offshoots18
- ointments11
- olecranon11
- oleoresin9
- olfaction14
- oligarchs15
- oligarchy18
- oligomers12
- oligopoly15
- olympiads17
- ombudsmen16
- omelettes11
- ominously14
- omnibuses13
- omnivores14
- oncogenes12
- oncogenic14
- oncologic14
- onlookers13
- onrushing13
- opacities13
- operculum15
- operettas11
- opportune13
- opposable15
- oppresses13
- oppressor13
- optically16
- opticians13
- optimally16
- optimised14
- optimists13
- optimizer22
- optimizes22
- optometry16
- orangerie10
- orangutan10
- oratorios9
- orbicular13
- ordaining11
- orderlies10
- ordinates10
- organelle10
- organises10
- organists10
- orgiastic12
- orientals9
- orientate9
- orienting10
- ornithine12
- orthotics14
- oscillate11
- ossuaries9
- osteology13
- osteopath14
- ostracism13
- ostracize20
- ostracods12
- ostriches14
- otherness12
- oubliette11
- outboards12
- outdoorsy13
- outermost11
- outerwear12
- outfitted13
- outfitter12
- outgained11
- outgoings11
- outgroups12
- outgrowth16
- outgunned11
- outhouses12
- outlander10
- outlasted10
- outlawing13
- outliving13
- outmanned12
- outnumber13
- outpacing14
- outplayed15
- outraging11
- outranked14
- outriders10
- outrigger11
- outscored12
- outshined13
- outshines12
- outsmarts11
- outspread12
- outstayed13
- outstrips11
- outweighs16
- outwitted13
- outworked17
- ovenproof17
- overblown17
- overbroad15
- overbuilt14
- overcoats14
- overcomer16
- overcomes16
- overcrowd18
- overdoing14
- overdosed14
- overdoses13
- overdraft16
- overdrawn16
- overeager13
- overflown18
- overflows18
- overhangs16
- overhauls15
- overheads16
- overhears15
- overheats15
- overhyped21
- overjoyed23
- overloads13
- overlords13
- overlying16
- overpower17
- overprint14
- overreach17
- overreact14
- overrides13
- overrules12
- overseers12
- oversexed20
- overshoes15
- overshoot15
- oversleep14
- overslept14
- overspend15
- overspent14
- overspill14
- overstate12
- overstays15
- oversteer12
- oversteps14
- overstock18
- overtakes16
- overtaxed20
- overthink19
- overthrew18
- overtimes14
- overtired13
- overtones12
- overtures12
- overturns12
- overusing13
- overvalue15
- overviews18
- overwater15
- overwrite15
- oviparous14
- ovulating13
- ovulation12
- ovulatory15
- oxidising18
- oxidizers26
- oxidizing27
- oxygenate20
- oakmosses15
- oarfishes15
- oarswoman14
- oarswomen14
- oasthouse12
- obbligati14
- obcordate14
- obeahisms16
- obelising12
- obelizing21
- obesities11
- objurgate19
- obligatos12
- obliquing21
- oblivions14
- obloquies20
- obscenest13
- obscurant13
- obscurest13
9-letter words starting with O…
Other lengths starting with O
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