Knock - Definition

n 1: the sound of knocking (as on a door or in an engine or
bearing); "the knocking grew louder" [syn: knock,
knocking]
2: negative criticism [syn: knock, roast]
3: a vigorous blow; "the sudden knock floored him"; "he took a
bash right in his face"; "he got a bang on the head" [syn:
knock, bash, bang, smash, belt]
4: a bad experience; "the school of hard knocks"
5: the act of hitting vigorously; "he gave the table a whack"
[syn: knock, belt, rap, whack, whang]
v 1: deliver a sharp blow or push :"He knocked the glass clear
across the room" [syn: knock, strike hard]
2: rap with the knuckles; "knock on the door"
3: knock against with force or violence; "My car bumped into the
tree" [syn: bump, knock]
4: make light, repeated taps on a surface; "he was tapping his
fingers on the table impatiently" [syn: tap, rap,
knock, pink]
5: sound like a car engine that is firing too early; "the car
pinged when I put in low-octane gasoline"; "The car pinked
when the ignition was too far retarded" [syn: pink, ping,
knock]
6: find fault with; express criticism of; point out real or
perceived flaws; "The paper criticized the new movie"; "Don't
knock the food--it's free" [syn: knock, criticize,
criticise, pick apart] [ant: praise]