| Noun | 1. | flap - any broad thin and limber covering attached at one edge; hangs loose or projects freely; "he wrote on the flap of the envelope"barndoor - an opaque adjustable flap on a lamp fixture; used in photography to cut off light from particular areas coattail - the loose back flap of a coat that hangs below the waist codpiece - (15th-16th century) a flap for the crotch of men's tight-fitting breeches covering - an artifact that covers something else (usually to protect or shelter or conceal it) earflap, earlap - one of two flaps attached to a cap to keep the ears warm dag, jag - a flap along the edge of a garment; used in medieval clothing overlap, lap - a flap that lies over another part; "the lap of the shingles should be at least ten inches" pocket flap - a flap that covers the access to a pocket tongue - the flap of material under the laces of a shoe or boot | |
| 2. | flap - an excited state of agitation; "he was in a dither"; "there was a terrible flap about the theft"agitation - a mental state of extreme emotional disturbance | |
| 3. | flap - the motion made by flapping up and down | |
| 4. | flap - a movable piece of tissue partly connected to the bodyuvula - a small pendant fleshy lobe at the back of the soft palate soft palate, velum - a muscular flap that closes off the nasopharynx during swallowing or speaking leaflet, cusp - a thin triangular flap of a heart valve | |
| 5. | flap - a movable airfoil that is part of an aircraft wing; used to increase lift or draglanding flap - a flap on the underside of the wing that is lowered to slow the plane for landing wing - one of the horizontal airfoils on either side of the fuselage of an airplane | |
| Verb | 1. | flap - move in a wavy pattern or with a rising and falling motion; "The curtains undulated"; "the waves rolled towards the beach"move - move so as to change position, perform a nontranslational motion; "He moved his hand slightly to the right" luff - flap when the wind is blowing equally on both sides; "the sails luffed" | |
| 2. | flap - move noisily; "flags flapped in the strong wind" | |
| 3. | flap - move with a thrashing motion; "The bird flapped its wings"; "The eagle beat its wings and soared high into the sky"move, displace - cause to move, both in a concrete and in an abstract sense; "Move those boxes into the corner, please"; "I'm moving my money to another bank"; "The director moved more responsibilities onto his new assistant" flap, beat - move with a flapping motion; "The bird's wings were flapping" bate - flap the wings wildly or frantically; used of falcons clap - cause to strike the air in flight; "The big bird clapped its wings" | |
| 4. | flap - move with a flapping motion; "The bird's wings were flapping"move - move so as to change position, perform a nontranslational motion; "He moved his hand slightly to the right" flap, beat - move with a thrashing motion; "The bird flapped its wings"; "The eagle beat its wings and soared high into the sky" flail, thresh - move like a flail; thresh about; "Her arms were flailing" clap - strike the air in flight; "the wings of the birds clapped loudly" | |
| 5. | flap - make a fuss; be agitatedfret, fuss, niggle - worry unnecessarily or excessively; "don't fuss too much over the grandchildren--they are quite big now" | |
| 6. | flap - pronounce with a flap, of alveolar sounds | |