1. I〔将棋で〕a captured piece
  1. II〔控えの人員〕a person kept in reserve;〔いつでも使える手段〕an available means
    • このチームは投手の持ち駒が豊富だ[足りない]
    • This team has many pitchers available./This team is short of pitchers.
    • この方法はいざというときの持ち駒にとっておこう
    • Let's save this measure for use just in case.