Definition of knock-up
(Entry 1 of 2)
British
: a warm-up or practice session before a game in a racket sport (such as tennis)
knock up
verb
knocked up; knocking up; knocks up
Definition of knock up (Entry 2 of 2)
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Merriam-Webster unabridged
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Time Traveler for knock-up
The first known use of knock-up was in 1592
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