knocking

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.”

An act in which something is knocked on, or the sound thus produced