knock out

1. Also, knock out cold . Render unconscious by a blow or some other means. For example, It was just a swinging door, but it knocked her out , or Just one of those sleeping pills can knock you out cold . [Late 1500s]

2. Make tired, exhaust, as in That sightseeing tour knocked me out .

3. Render useless or inoperative, as in The storm knocked out the power .

4. See knock off , def. 2.

5. See knock oneself out .

Example Sentences

At the time, Norris was in danger of being knocked out - which would have meant qualifying out of the top 10 and giving Piastri a massive helping hand in the championship.

From BBC

Two-time US Open champion Naomi Osaka earned her most impressive win since giving birth by knocking out American third seed Coco Gauff to reach the quarter-finals in New York.

From BBC

West Ham look flimsy and were knocked out of the League Cup in midweek.

From BBC

I don’t really knock out until my body’s just like, “alright f— this, bro, I’m done.”

From Los Angeles Times

“He’s knocked out kids before. It’s hard to beat him.”

From Los Angeles Times