to nurture
to nuzzle
to oar
to obey
to obfuscate
to object
to objectify
to objurgate
to obligate
to oblige
to obliterate
to obnubilate
to obscure
to observe
to obsess
to obsolesce
to obstruct
to obtain
to obtrude
to obviate
to occasion
to occlude
to occult
to occupy
to occur
to offend
to offer
to officiate
to offset
to ogle
to oil
to olden
to omit
to ooze
to open
to operate
to opiate
to opine
to oppose
to oppress
to ordain
to order
to organize
to orient
to orientate
to originate
to ornament
to orphan
to oscillate
to osculate
to ossify
to ostracize
to ought
to oust
to out
to outbalance
to outbid
to outbrave
to outcrop
to outdo
to outface
to outflank
to outgo
to outgrow
to outlast
to outlaw
to outlay
to outline
to outlive
to outnumber
to outpace
to outplay
to outpour