The meaning of KNOCK is to strike something with a sharp blow. How to use knock in a sentence.

KNOCK meaning: 1. to repeatedly hit something, producing a noise: 2. If an engine is knocking, it is producing a…. Learn more.

Knock, to tap on a door Knock, a slang term meaning to render a negative evaluation or assessment Engine knocking, in spark-ignition internal combustion engines Knock Nevis, a Norwegian …

Dec 4, 2011 · Knock definition: to strike a sounding blow with the fist, knuckles, or anything hard, especially on a door, window, or the like, as in seeking admittance, calling attention, or giving a signal..

If you knock something or someone, you criticize them and say unpleasant things about them.

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Enjoy 11 genuinely funny knock-knock jokes guaranteed to bring a smile. Light, clean and perfect for sharing with friends and family this Christmas season.

Knock knees (genu valgum) is a condition in which the knees tilt inward while the ankles remain spaced apart. Learn more from Boston Children's Hospital.

Nov 13, 2025 · (transitive, British, slang, dated) To impress forcibly or strongly; to astonish; to move to admiration or applause. I knocked against the table and bruised my leg.

knock noun [C] (NOISE) a sudden short noise made when something or someone hits a surface: a knock at/on the door