Definition of "knock" []

To strike with a hard blow. (verb-transitive)
To affect in a specified way by striking hard: knocked the mugger senseless. (verb-transitive)
To cause to collide: I knocked my head on a low beam. (verb-transitive)
To produce by hitting or striking: knocked a hole in the wall. (verb-transitive)
To instill with or as if with blows: We tried to knock some sense into his head. (verb-transitive)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "knock" in a sentence

"She grabbed a platter and quickly filled it with muffins, then dashed across the hall to deliver them. * knock knock knock* No answer. * knock knock knock knock* Still nothing."
"Simon is sitting on his stool, hammering away at a half-finished boot, when he hears a knock at his door. [_knock_]"
"Dewey used to like the term knock-off until he saw the movie Knock-off."

Words like "knock"

astonish blow bump collide with criticise

criticism critique disparage go hit

impinge on jar knap knocked knocking

knocks rap run into sound strike