Possible Definitions:
1. Knock (v. i.) To drive or be driven against something; to strike against something; to clash; as, one heavy body knocks against another.
2. Knock (v. i.) To strike or beat with something hard or heavy; to rap; as, to knock with a club; to knock on the door.
3. Knock (v. t.) To strike with something hard or heavy; to move by striking; to drive (a thing) against something; as, to knock a ball with a bat; to knock the head against a post; to knock a lamp off the table.
4. Knock (v. t.) To strike for admittance; to rap upon, as a door.
5. Knock (n.) A blow; a stroke with something hard or heavy; a jar.
6. Knock (n.) A stroke, as on a door for admittance; a rap.
7. Knock (v. i.) To practice evil speaking or fault-finding; to criticize habitually or captiously.
8. Knock (v. t.) To impress strongly or forcibly; to astonish; to move to admiration or applause.
