There are 1,053 4-letter words containing O in the ENABLE dictionary — 27% of all 3,903 words at this length. O is a one-point tile and the bag holds a lot of them, so these words are less about scoring than about shape: they are what clears a vowel-heavy rack, and in a daily guessing game they are how you test a vowel you have not placed yet.
The O falls in the second position more often than any other, in 698 of them. 117 of them use the letter more than once — bolo, boob, book, boom among them, which is the case worth checking twice when a game has told you a letter is present but not how many times.
If you know more than one letter, this page stops being the fast way to find it. Enter what you have in the unscrambler — the Contains, Starts with and Ends with filters combine, and setting both length fields to 4 narrows this list to the handful your letters actually allow.
Where the O sits
O in the first position (107)
oafs oaks oars oast oath oats obes obey obia obis obit oboe obol ocas odds odea odes odic odor odyl ofay offs ogam ogee ogle ogre ohed ohia ohms oils oily oink okas okay okeh okes okra olds oldy olea oleo oles olio olla omen omer omit once ones only onto onus onyx oohs oops oots ooze oozy opah opal oped open opes opts opus orad oral orbs orby orca orcs ordo ores orgy orle orra orts oryx orzo osar oses ossa otic otto ouch ouds ouph ours oust outs ouzo oval oven over ovum owed owes owls owns owse oxen oxes oxid oxim oyer oyes oyez
O in the second position (698)
boar boas boat bobs bock bode bods body boff bogs bogy boil bola bold bole boll bolo bolt bomb bond bone bong bonk bony boob book boom boon boor boos boot bops bora bore born bort bosh bosk boss bota both bots bott bout bowl bows boxy boyo boys bozo coal coat coax cobb cobs coca cock coco coda code cods coed coff coft cogs coho coif coil coin coir coke cola cold cole cols colt coly coma comb come comp cone coni conk conn cons cony coof cook cool coon coop coos coot cope cops copy cord core corf cork corm corn cory cosh coss cost cosy cote cots coup cove cowl cows cowy coxa coys cozy doat doby dock docs dodo doer does doff doge dogs dogy doit dojo dole doll dols dolt dome doms dona done dong dons doom door dopa dope dopy dore dork dorm dorp dorr dors dory dose doss dost dote doth dots doty doum dour doux dove down dows doxy doze dozy eons foal foam fobs foci foes fogs fogy fohn foil foin fold folk fond fons font food fool foot fops fora forb ford fore fork form fort foss foul four fowl foxy foys fozy goad goal goas goat gobo gobs goby gods goer goes gogo gold golf gone gong good goof gook goon goop goos gore gorp gory gosh gout gowd gowk gown goys hoar hoax hobo hobs hock hods hoed hoer hoes hogg hogs hoke hold hole holk holm holp hols holt holy home homo homy hone hong honk hons hood hoof hook hoop hoot hope hops hora horn hose host hots hour hove howe howf howk howl hows hoya hoys ions iota jobs jock joes joey jogs john join joke joky jole jolt josh joss jota jots jouk jowl jows joys koan koas kobo kobs koel kohl kola kolo konk kook koph kops kore kors koss koto load loaf loam loan lobe lobo lobs loca loch loci lock loco lode loft loge logo logs logy loin loll lone long loof look loom loon loop loos loot lope lops lord lore lorn lory lose loss lost lota loth loti lots loud loup lour lout love lowe lown lows moan moas moat mobs mock mocs mode modi mods mogs moil mojo moke mola mold mole moll mols molt moly mome momi moms monk mono mons mony mood mool moon moor moos moot mope mops mopy mora more morn mors mort mosk moss most mote moth mots mott moue move mown mows moxa mozo nobs nock node nodi nods noel noes nogg nogs noil noir nolo noma nome noms nona none nook noon nope nori norm nose nosh nosy nota note noun nous nova nows nowt pock poco pods poem poet pogy pois poke poky pole poll polo pols poly pome pomp poms pond pone pong pons pony pood poof pooh pool poon poop poor pope pops pore pork porn port pose posh post posy pots pouf pour pout pows qoph road roam roan roar robe robs rock rocs rode rods roes roil role rolf roll romp roms rood roof rook room root rope ropy rose rosy rota rote roti rotl roto rots roue roup rout roux rove rows soak soap soar sobs sock soda sods sofa soft soil soja soke sola sold sole soli solo sols soma some sone song sons sook soon soot soph sops sora sorb sord sore sori sorn sort soth sots souk soul soup sour sous sown sows soya soys toad toby tods tody toea toed toes toff toft tofu toga togs toil toit toke tola told tole toll tolu tomb tome toms tone tong tons tony took tool toom toon toot tope toph topi tops tora torc tore tori torn toro torr tors tort tory tosh toss tost tote tots tour tout town tows towy toyo toys voes void vole volt vote vows woad woes wogs woke woks wold wolf womb wonk wons wont wood woof wool woos wops word wore work worm worn wort wost wots wove wows yobs yock yodh yods yoga yogh yogi yoke yoks yolk yond yoni yore your yowe yowl yows zoea zoic zone zonk zoom zoon zoos zori
aero agio also alto ambo ammo arco arvo auto brio bubo calo capo cero chao ciao dado dago dato deco demo dido duro echo eddo ergo euro expo fado fano faro fico fido filo fino giro gyro halo helo hero hypo info inro into jato jiao judo kayo keno keto kilo kino kudo leno levo lido limo lino mako mano mayo memo meno milo miso pepo peso piso prao rato redo repo sago sego shmo silo sumo sybo taco taro thio thro tiro trio typo tyro umbo unco undo unto updo veto vino wino zero