To strike for admittance; to rap upon, as a door.
To criticize verbally; to denigrate; to undervalue.
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.
To bump or impact.
I accidentally knocked my drink off the bar.
To rap one's knuckles against something, especially wood.
Knock on the door and find out if they’re home.