knock out
Longman Dictionary of Contemporary English 5++LDOCE 5++knock out → knock out at knock1(PHRASAL VERB)
knock out
knock out phrasal verb (see also knock)
1. UNCONSCIOUS knock somebody ↔ out to make someone become unconscious or go to sleep:
The champion knocked Biggs out in the seventh round.
knock yourself out
His head hit a table as he fell and he knocked himself out.
The nurse gave me some medicine which totally knocked me out. ⇨ knockout1(1)
2. DEFEAT knock somebody/something ↔ out to defeat a person or team in a competition so that they can no longer take part:
The German team were knocked out in the first round.
knock somebody/something out of something
He first hit the headlines when he knocked Becker out of the French Open Tournament. ⇨ knockout1(3)
3. DESTROY knock something ↔ out to damage something so that it does not work:
The air raids were planned to knock out communications on the ground.
4. ADMIRE knock somebody out informal if something knocks you out, it is very impressive and surprises you because it is so good:
She loved the movie. It knocked her out. ⇨ knockout1(2)
5. PRODUCE knock something ↔ out informal to produce something easily and quickly:
Paul has been knocking out new songs for the album.
6. knock yourself out informal to work very hard in order to do something well
knock out phrasal verb (see also knock)
1. UNCONSCIOUS knock somebody ↔ out to make someone become unconscious or go to sleep:
knock yourself out
2. DEFEAT knock somebody/something ↔ out to defeat a person or team in a competition so that they can no longer take part:
knock somebody/something out of something
3. DESTROY knock something ↔ out to damage something so that it does not work:
4. ADMIRE knock somebody out informal if something knocks you out, it is very impressive and surprises you because it is so good:
5. PRODUCE knock something ↔ out informal to produce something easily and quickly:
6. knock yourself out informal to work very hard in order to do something well