The meaning of Knock-out

idiom

Eliminate

phrasal verb

Make a person unconscious, typically with a blow to the head.

Usage examples:

My head hit the bottom and i was knocked out for a good five minutes

phrasal verb

Defeat a competitor in a knockout competition.

Usage examples:

England had been knocked out of the world cup

phrasal verb

Destroy, damage, or disable a machine or piece of equipment.

Usage examples:

The fault disabled two backup systems and knocked out the computer

phrasal verb

Produce work at a steady fast rate.

Usage examples:

If you knock out a thousand words a day you'll soon have finished

phrasal verb

Empty a tobacco pipe by tapping it against a surface.

Usage examples:

He sighed, knocked out his pipe, and put it back in his pocket

phrasal verb

Earn a specified sum of money.

Usage examples:

I was knocking out about eighteen hundred dollars per annum

adjective

(of an argument or physical fight) lasting a long time and energetically fought

Usage examples:

We had knock-down drag-out fights, but when i really needed him on the big issues, he was helpful.