touche

/T UW1 SH/
interjection
  1. 1

    An acknowledgement of a hit.

  2. 2

    An acknowledgement of the validity, appropriateness or superiority of an opponent's argument or statement in a discussion.

Source: https://en.wiktionary.org/wiki/touch%C3%A9, https://en.wiktionary.org/wiki/touche