Definitions
1.nounSudden fatigue as a result of glycogen depletion from not having taken in enough nutrition.
2.nounAn abrupt rapping sound, as from an impact of a hard object against wood."I heard a knock on my door."
3.nounA sharp impact."He took a knock on the head."
4.nounCriticism.
5.nounPreignition, a type of abnormal combustion occurring in spark ignition engines caused by self-ignition; also, the characteristic knocking sound associated with it.
6.nounA batsman's innings."He played a slow but sure knock of 35."
7.verbTo strike for admittance; to rap upon, as a door.
8.verbTo criticize verbally; to denigrate; to undervalue."Don’t knock it until you’ve tried it."
9.verbTo kick a ball towards another player; to pass.
10.verbTo impress forcibly or strongly; to astonish; to move to admiration or applause.
11.verbTo bump or impact."I accidentally knocked my drink off the bar."
12.verbTo rap one's knuckles against something, especially wood."Knock on the door and find out if they’re home."