knockout punch

• Coup puissant qui met l'adversaire hors de combat, généralement en boxe ; il s'emploie aussi au sens figuré pour désigner une action décisive ou écrasante qui met fin à une compétition ou à un débat.

A powerful blow that renders an opponent unconscious, typically used in boxing; also used figuratively to describe a decisive or overwhelming action that ends a competition or argument.

1. Decisive blow in boxingB2formal

   A powerful punch that renders an opponent unconscious or unable to get up within a count of ten.

   coup de poing knockout

   • The boxer delivered a devastating knockout punch in the third round.
   • He was leading on points until he received a knockout punch.
   • The champion's knockout punch ended the fight instantly.

2. Decisive or final actionB2informal

   An action or event that decisively ends a competition, argument, or situation.

   coup de grâce

   • The new evidence was the knockout punch in the trial.
   • Her brilliant presentation was the knockout punch of the conference.
   • The team's last goal was the knockout punch in the championship game.