To defeat or beat an opponent (by strength, skill, or strategy).
準決勝で強敵を打ち負かして、チームは決勝に進んだ。
They defeated a strong opponent in the semifinals and the team advanced to the final.
彼は練習を重ねてライバルを打ち負かすことに成功した。
He practiced hard and succeeded in beating his rival.
政治家は選挙で相手候補を打ち負かすために演説を続けた。
The politician continued giving speeches to defeat his opponent in the election.