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Verb: beef up
  1. Make strong or stronger
    "This exercise will beef up your upper body";
    - strengthen, fortify

Derived forms: beefs up, beefing up

Type of: alter, change, modify

Nearest

beef patty
beef plant
beef roast
beef stew
beef stock
beef Stroganoff
beef tallow
beef tea
beef tenderloin
beef tongue
beef up
beef Wellington
beefalo
beefburger
beefcake
beefeater
beefed-up
beefsteak
beefsteak begonia
beefsteak fungus
beefsteak geranium