knock-out

/N AA1 K AW1 T/
noun
  1. 1

    The act of making someone unconscious, or at least unable to come back on their feet within a certain period of time; a TKO.

    โ€œThe boxer scored a knockout on his opponent.โ€

  2. 2

    The deactivation of anything.

  3. 3

    Something wildly popular, entertaining, or funny.

    โ€œIf you've ever had a sack race, you know it's a real knockout for kids and adults alike.โ€

  4. 4

    A very attractive person, especially a beautiful woman.

  5. 5

    A partially punched opening meant for optional later removal.

    โ€œThey left a knockout in the panel for running extra wires someday.โ€

  6. 6

    The deactivation of a particular gene.

  7. 7

    A creature engineered with a particular gene deactivated.

  8. 8

    An event where a foreground color causes a background color not to print.

  9. 9

    A tournament in which a team or player must beat the opponent in order to progress to the next round.

    โ€œthe knockout stages of the competitionโ€

  10. 10

    A simple game for two or more players, derived from basketball.

  11. 11

    A knockout auction.

Source: https://en.wiktionary.org/wiki/knock-out, https://en.wiktionary.org/wiki/knockout