- (n.) To move, as something broad and flaplike; as, to flap the wings; to let fall, as the brim of a hat.
- (v.i.) To fall and hang like a flap, as the brim of a hat or other broad thing.
- (v.) A hinged leaf, as of a table or shutter.
- (v.) A disease in the lips of horses.
- (n.) To beat with a flap; to strike.
- (v.) Anything broad and limber that hangs loose or that is attached by one side or end and is easily moved; as, the flap of a garment.
- (v.) The motion of anything broad and loose or a stroke or sound made with it; as, the flap of a sail or of a wing.
- (v.i.) To move as do wings or as something broad or loose; to fly with wings beating the air.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). flap. Retrieved September 23, 2026, from http://smartdefine.org/flap/definitions/2008425 |
| Chicago | Webster's. 2011. "flap" http://smartdefine.org/flap/definitions/2008425 (accessed September 23, 2026). |
| Harvard | Webster's 2011, flap, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/flap/definitions/2008425>. |
| MLA | Webster's. "flap" 27 May 2011. Web. 23 September 2026. <http://smartdefine.org/flap/definitions/2008425> |