gain strength

強まる、勢いづく、頭をもたげる、力が付く

gain strength の類語

grow, appreciate, go up, strengthen, get ahead, balloon, shoot up, increase, multiply, gain, rise, improve, develop, broaden, widen, advance, snowball, intensify, mount, accrue, boom, proliferate, breed, wax, accumulate, spread, rally, recover, crescendo, recuperate, pick up, bloat, recruit, turn the corner, swell, come about, brace up, come round, perk up

gain strength の反意語

weaken, narrow

例文

• Eat more, or you won't gain strength.
  もっと食べないと体力が付きませんよ。

gain strength の言い換えを探すには

gain strength（強まる）の類語・言い換え（パラフレーズ）を、日本語訳つきで関連度順に並べています。英作文の語彙を増やしたいとき、長文読解で本文と選択肢の言い換えを見抜きたいときに使えます。