代だい打だ

noun

pinch-hitting; pinch hitter

Baseball term for a substitute batter. Also used metaphorically for a substitute in other contexts.

• 九きゅう回かい裏うら、代だい打だにベテラン選せん手しゅが送おくられた。

  In the bottom of the ninth, a veteran player was sent in as a pinch hitter.

• 彼かれは代だい打だでホームランを打うった。

  He hit a home run as a pinch hitter.

noun

substitute; proxy; stand-in

Extended use: someone who performs a duty or role in place of another person, often in business or formal settings.

• 社しゃ長ちょうが急きゅう病びょうのため、副ふく社しゃ長ちょうが代だい打だで会かい議ぎに出しゅっ席せきした。

  Because the president suddenly fell ill, the vice president attended the meeting as a substitute.

• 彼かれは急きゅうな代だい打だでプレゼンを任まかされた。

  He was entrusted with the presentation as a last-minute stand-in.