- (n.) One who or that which, knocks; specifically, an instrument or kind of hammer, fastened to a door, to be used in seeking for admittance.
- (n.) A person strikingly handsome, beautiful or fine; one who wins admiration; a "stunner.".
- (n.) A species of large cockroach, especially Blabera gigantea, of semitropical America, which as able to produce a loud knocking sound.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). knocker. Retrieved September 20, 2026, from http://smartdefine.org/knocker/definitions/2025756 |
| Chicago | Webster's. 2011. "knocker" http://smartdefine.org/knocker/definitions/2025756 (accessed September 20, 2026). |
| Harvard | Webster's 2011, knocker, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/knocker/definitions/2025756>. |
| MLA | Webster's. "knocker" 27 May 2011. Web. 20 September 2026. <http://smartdefine.org/knocker/definitions/2025756> |