Words Starting With O — English Word List
Every English word that starts with "O". Filter by length or suffix to narrow results for Scrabble, crosswords, and more.
285 words found13 Letter Words(2)
opportunities17overqualified29
12 Letter Words(9)
occasionally19occupational18orchestrated18organization22overcharging22overestimate17overreacting18overstepping20overwhelming24
11 Letter Words(12)
objectively28observation16obstruction15opportunity18orientation11outstanding13overcharged21overhearing18overheating18overlapping19overreacted17overwhelmed23
10 Letter Words(19)
obligation13obsequious21occasional14occurrence16officially21oncologist13operations12opposition14optimistic16ordinarily14organizing21originally14ostensibly15outrageous11overcharge19overheated17overlooked18overplayed19overweight20
9 Letter Words(34)
objection20objective23obligated13obnoxious18obscurity16observing15obsession11obsessive14obstacles13obviously17occasions13offenders16offending17offensive18officiant17okeydokey24operating12operation11operators11opponents13organized20originals10ornaments11otherwise15ourselves12overboard15overheard16overlords13overnight16oversight16oversized22overslept14ovulating13ownership17
8 Letter Words(48)
obituary13observed14observer13obsessed11obtained11occasion12occupied15occurred13odometer11offended16offender15offering15officers16official16oldsters9oncology14operated11operates10operator10opinions10opponent12opposing13opposite12optimism14optional10ordained10ordering10ordinary12organize18original9orphaned14outburst10outdoors9outgoing10outhouse11outlawed12outraged10outreach13outright12overages12overcome15overdose12overflow17overhead15overkill15overlook15overseas11overtime13
7 Letter Words(44)
oatmeal9obesity12obscene11obscure11observe12obvious12offence15offense13offered14officer15offices15offline13onboard10ongoing9onstage8opening10operate9opinion9opposed12optimal11options9oranges8orchard13orchids13ordered9organic10orifice12origins8ostrich12outback15outcome11outdone8outdoor8outfits10outlets7outlook11outside8outward11overall10overdue11overlap12oversee10overuse10oysters10
6 Letter Words(36)
object17obtain8oceans8offend13offers12office14offset12oldest7olives9omelet8onesie6onions6online6opened9opener8openly11operas8option8oracle8orange7orders7organs7origin7others9ounces8outfit9outies6outing7outlaw9outlet6overdo10overly12owners9owning10oxygen17oyster9
5 Letter Words(31)
oasis5obese7occur9ocean7oddly10offer11often8olden6older6olive8ollie5onion5opens7opera7opted8order6organ6oscar7other8otter5ought9ounce7outed6outer5outie5outta5ovens8owing9owned9owner8oxide13
4 Letter Words(23)
oath7oats4oboe6odds6oink8okay11olds5once6ones4only7onto4oops6open6oral4ouch9ours4outs4oval7oven7over7owed8owes7owns7
3 Letter Words(17)
oak7oat3odd5off9oil3old4ole3one3oof6ooh6opt5org4our3out3owe6owl6own6
2 Letter Words(10)
od3of5oh5oi2ok6on2op4or2ow5oy5
Related Word Lists
About These Words
Of the 285 matching words, the most common length is 8 letters (48 words, 17% of results).
The shortest 2-letter words are od, of, oh, oi, ok.
The longest results are opportunities, overqualified at 13 letters each.
Length distribution
2 letters
10 (4%)
3 letters
17 (6%)
4 letters
23 (8%)
5 letters
31 (11%)
6 letters
36 (13%)
7 letters
44 (15%)
8 letters
48 (17%)
9 letters
34 (12%)
10 letters
19 (7%)
11 letters
12 (4%)
12 letters
9 (3%)
13 letters
2 (1%)
Frequently Asked Questions
How many words start with "O"?
There are 285 English words that start with "O".
What does the prefix "O" mean?
Words starting with "O" share this common letter combination.