- Originate Verb
- Originate in Verb
- Orphan Noun Verb Adj
- Orthogonalize Verb
- Orthonormalize Verb
- Oscillate Verb
- Osculate Verb
- Osmose Verb Noun
- Ossify Verb
- Ostracise Verb
- Ostracize Verb
- Ought Verb
- Ought not Verb
- Oughter Verb
- Oust Verb
- Out Adj Adv Prep Verb Noun
- Outargue Verb
- Outbalance Verb
- Outbargain Verb
- Outbid Verb
- Outblaze Verb
- Outbluff Verb
- Outboast Verb
- Outbox Noun Verb
- Outbrave Verb
- Outbreathe Verb
- Outbreed Verb
- Outbuild Verb
- Outbuy Verb
- Outclass Verb
- Outcrop Noun Verb
- Outcross Noun Verb
- Outdance Verb
- Outdare Verb
- Outdate Verb
- Outdent Noun Verb
- Outdistance Verb
- Outdo Verb
- Outdodge Verb
- Outdrive Noun Verb
- Outface Verb
- Outfeed Noun Verb
- Outfight Verb
- Outfit Noun Verb
- Outflank Verb
- Outflow Noun Verb
- Outfly Verb
- Outfox Verb
- Outgallop Verb
- Outgas Verb
- Outgeneral Verb
- Outgo Noun Verb
- Outgrow Verb
- Outguard Noun Verb
- Outguess Verb
- Outgun Verb
- Outgush Noun Verb
- Outhang Verb
- Outhaul Noun Verb
- Outhit Verb