Browse the Oxford Advanced American Dictionary
- opening
adjective - opening hours
noun - opening night
noun - opening
noun - opening up
noun - openly
adverb - openness
noun - opera glasses
noun - opera house
noun - opera
noun - operable
adjective - operand
noun - operate
verb - operating room
noun - operating system
noun - operating table
noun - operation code
noun - operation
noun - operational
adjective - operations research
noun - operations room
noun - operative
adjective - operative
noun - operator
noun - operetta
noun - ophthalmic
adjective - ophthalmologist
noun - ophthalmology
noun - opiate
noun - opine
verb - opinion
noun - opinion poll
noun - opinionated
adjective - opium
noun - opossum
noun - opponent
noun - opportune
adjective - opportunism
noun - opportunist
adjective - opportunist
noun - opportunistic
adjective - opportunity
noun - opposable
adjective - oppose
verb - opposed
adjective - opposing
adjective - opposite
adjective - opposite
noun - opposite
preposition - opposition
noun
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