- OE. knoken, AS. cnociancnucian; prob. of imitative origin; cf. Sw. knacka. Cf. Knack
- To drive or be driven against something; to strike against something; to clash; as, one heavy body knocks against another.
- To strike or beat with something hard or heavy; to rap; as, to knock with a club; to knock on the door.For harbor at a thousand doors they knocked.Seek, and ye shall find; knock, and it shall be opened unto you.
- To practice evil speaking or fault-finding; to criticize habitually or captiously.Slang, U. S
