What is the meaning of knocked out?

verb

• Eliminate.
  • usage: "knock out a target"
  • synonyms: knock out
• Knock unconscious or senseless.
  • usage: "the boxing champion knocked out his opponent in a few seconds"
  • synonyms: knock cold, knock out, kayo
• Destroy or break forcefully.
  • usage: "The windows were knocked out"
  • synonyms: knock out
• Overwhelm with admiration.
  • usage: "All the guys were knocked out by her charm"
  • synonyms: knock out
• Empty (as of tobacco) by knocking out.
  • usage: "knocked out a pipe"
  • synonyms: knock out

adjective

• Knocked unconscious by a heavy blow.
  • synonyms: kayoed, KO'd, out, stunned