真しん剣けん勝しょう負ぶ

noun

fighting with real swords; real sword fight

Literal historical meaning: a duel or battle using actual blades, not practice swords.

• 時じ代だい劇げきでは真しん剣けん勝しょう負ぶの場ば面めんがよく描えがかれる。

  Scenes of real sword fights are often depicted in period dramas.

noun

serious contest; game played in earnest; all-out effort

Figurative extension: any competition or confrontation where participants give their all, as if fighting with real swords.

• 次つぎの試し合あいは真しん剣けん勝しょう負ぶだ。

  The next match will be a serious contest.

• 彼かれとは真しん剣けん勝しょう負ぶで議ぎ論ろんした。

  I debated with him in all seriousness.