1
: the flesh of an adult domestic bovine (such as a steer or cow) used as food
2
a
: an ox, cow, or bull in a full-grown or nearly full-grown state
especially
: a steer or cow fattened for food
quality Texas beeves
a herd of good beef
b
: a dressed carcass of a beef animal
3
: muscular flesh : brawn
4
beefed; beefing; beefs
: to increase or add substance, strength, or power to
—usually used with up
money to beef up its staff of professional economists—John Fischer
: complain
always beefing about something
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Merriam-Webster unabridged
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