knockoutnoun/ˈnɒk.aʊt/

• 1

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

  • The boxer scored a knockout on his opponent.
• 2

  The deactivation of anything.

  • Pull the plug on a node to see how the network handles a node knockout.
• 3

  informalSomething wildly popular, entertaining, or funny.

  • If you've ever had a sack race, you know it's a real knockout for kids and adults alike.
• 4

  informalA very attractive person, especially a beautiful woman.

  • “There’s a girl wants to see you. Her name’s Wonderly.” “A customer?” “I guess so. You’ll want to see her anyway: she’s a knockout.”
  • "You’re asking too many questions. Look. You’re a cute kid. I mean, you’re a hell of a chick. You’re a knockout. But don’t go thinking you’re too important at this stage."
• 5

  A partially punched opening meant for optional later removal.

  • They left a knockout in the panel for running extra wires someday.
• 6

  biologygeneticsmedicineThe deactivation of a particular gene.

• 7

  biologygeneticsmedicineA creature engineered with a particular gene deactivated.

• 8

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

knockoutadj/ˈnɒk.aʊt/

• 1

  Rendering someone unconscious.

  • He delivered a knockout blow.
• 2

  Amazing; gorgeous; beautiful.

  • You should have seen her knockout eyes.
  • If the same model has beautiful hair, white teeth, glowing skin, a fit body, good hands and legs, a great wardrobe, and a knockout comp, her value on the "bookability meter" goes sky high.
• 3

  biologygeneticsmedicineDesignating an organism in which a particular gene has been removed or deactivated.

  • The result is a so-called knockout mouse, reared with a single gene silenced, the better to reveal that gene's true purpose.
• 4

  Causing elimination from a competition.

  • Rodolph Austin delivered the knockout blow from close range 20 minutes from time, after Aidan White had given Leeds a dream start after four minutes.

這個拼法也被記錄為下列字的變化形：

• knockout auction