We list 891 common words that start with O, from three to ten letters. 8-letter words are the biggest group with 198, and OXIDIZING scores the most at 27 points. Up to 60 of the most common words are shown for each length.
Need a word starting with O from particular letters? Use the unscrambler and set Starts with under More options, or the word finder for patterns.
3-letter words starting with O 20
oaf6oak7oar3oat3odd5ode4off9ohm8ohs6oil3old4one3opt5ore3our3out3ova6owe6owl6own6
4-letter words starting with O 47
oafs7oaks8oars4oath7oats4obey9oboe6odds6odes5odor5offs10ogle5ogre5ohms9oils4oily7oink8okay11okra8omen6omit6once6ones4only7onto4onus4oops6ooze13opal6open6opts6opus6oral4ores4ouch9ours4oust4outs4oval7oven7over7ovum9owed8owes7owls7owns7oxen11
5-letter words starting with O 60
oared6oases5oasis5oaths8obese7obeys10oboes7occur9ocean7octal7odder7oddly10odors6odour6offed12offer11often8ogled7ogles6ogres6oiled6okays12okras9olden6older6olive8omega8omens7omits7onion5onset5oozed15oozes14opals7opens7opera7opium9opted8optic9orals5orbit7order6organ6other8otter5ought9ounce7ousts5outdo6outed6outer5ovals8ovary11ovens8overs8overt8owing9owned9owner8ozone14
6-letter words starting with O 60
oaring7obeyed12object17oblige9oblong9obsess8obtain8obtuse8occupy15occurs10oceans8octave11ocular8oddest8oddity11odious7odours7offend13offers12office14offing13offset12ogling8oilier6oiling7okayed14oldest7olives9omelet8onions6onrush9onsets6onuses6onward10oodles7oozing16opaque17opened9opener8openly11operas8oppose10optics10optima10opting9option8opuses8orange7orders7organs7orient6origin7others9outcry11output8outset6overly12owners9owning10oxygen17
7-letter words starting with O 60
oatmeal9obelisk13obesity12obeying13objects18obliged11obliges10oblique18oblongs10obscene11obscure11observe12obtains9obtuser9obvious12oceanic11octagon10octaves12octopus11oculars9offbeat15offence15offends14offense13offered14offhand17officer15offices15offings14offload14offsets13oftener10oiliest7omitted10oneself10ongoing9opening10operate9opinion9opposed12opposes11oppress11optical11optimal11optimum13options9orbital9ordered9organic10orients7origins8outcome11outline7outlook11outputs9outrage8outside8overall10overdue11overlap12
8-letter words starting with O 60
objected20obliging12obscured13obscures12observed14observer13observes13obsessed11obsesses10obsolete10obstruct12obtained11occasion12occupied15occupies14occurred13offences16offended16offender15offenses14offering15officers16official16omission10omitting11operated11operates10operator10opinions10opponent12opposing13opposite12optimise12optimize21optional10ordering10ordinary12organise9organize18oriental8oriented9original9orthodox19outcomes12outdated10outgoing10outlined9outlines8outraged10outrages9outright12outweigh15overcame15overcome15overflow17overhead15overload12overlong12overlook15override12
9-letter words starting with O 60
objecting21objection20objective23obnoxious18obscuring14obscurity16observers14observing15obsessing12obsession11obstructs13obtaining12obviously17occasions13occupying19occurring14offenders16offending17offensive18offerings16officials17offspring18omissions11operating12operation11operators11opponents13oppressed14oppresses13optimised14optimises13optimized23optimizes22orchestra14organised11organiser10organises10organized20organizer19organizes19orientate9orienting10originals10originate10otherwise15ourselves12outlining10outraging11outweighs16overcomes16overdraft16overheads16overloads13overlooks16overnight16overprice16overrides13overtones12overwhelm20ownership17
10-letter words starting with O 60
obediently16obituaries12objections21objectives24obligating14obligation13obligatory16obliterate12observable17observance17obsessions12obsoleting13obstetrics14obstructed15obtainable14occasional14occasioned15occupation16occurrence16oesophagus16offensives19officially21officiated19officiates18offsetting17omnipotent14omniscient14onslaughts14operations12operatives15opposition14oppressing15oppression14oppressive17oppressors14optimising15optimistic16optimizing24optionally15orangutans11orchestral15organisers11organising12organizers20organizing21orientated11orientates10originally14originated12originates11originator11outrageous11overcoming18overloaded15overlooked18overpriced18overprices17overridden15overriding15overwhelms21