1. To strike or beat with something thick or heavy; as, to knock with a club or with the fist; to knock at the door. We never use this word to express beating with a small stick or whip.

2. To drive or be driven against; to strike against; to clash; as when one heavy body knocks against another.

To knock under, to yield; to submit; to acknowledge to be conquered; an expression borrowed from the practice of knocking under the table, when conquered.

, n. nok. A blow; a stroke with something thick or heavy.

1. A stroke on a door, intended as a request for admittance; a rap.