one–up

verb \ˌwən-ˈəp, ˈwən-\

: to get an advantage over (someone)

Full Definition of ONE-UP

transitive verb

: to practice one-upmanship on

See one–up defined for English-language learners

back-formation from one-upmanship

First Known Use: 1963

Next Word in the Dictionary: one upPrevious Word in the Dictionary: one–twoAll Words Near: one-up

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