knock
Pronunciation:
/nɒk//nɑk/noun
Definitions
Sudden fatigue as a result of glycogen depletion from not having taken in enough nutrition.
noun
Definitions
An abrupt rapping sound, as from an impact of a hard object against wood.
Example: I heard a knock on my door.
A sharp impact.
Example: He took a knock on the head.
Criticism.
Preignition, a type of abnormal combustion occurring in spark ignition engines caused by self-ignition; also, the characteristic knocking sound associated with it.
verb
Definitions
To strike for admittance; to rap upon, as a door.
To criticize verbally; to denigrate; to undervalue.
Example: Don’t knock it until you’ve tried it.
To kick a ball towards another player; to pass.
To impress forcibly or strongly; to astonish; to move to admiration or applause.