'Flap' definitions:

Definition of 'flap'

From: WordNet
noun
Any broad thin and limber covering attached at one edge; hangs loose or projects freely; "he wrote on the flap of the envelope"
noun
An excited state of agitation; "he was in a dither"; "there was a terrible flap about the theft" [syn: dither, pother, fuss, tizzy, flap]
noun
The motion made by flapping up and down [syn: flap, flapping, flutter, fluttering]
noun
A movable piece of tissue partly connected to the body
noun
A movable airfoil that is part of an aircraft wing; used to increase lift or drag [syn: flap, flaps]
verb
Move in a wavy pattern or with a rising and falling motion; "The curtains undulated"; "the waves rolled towards the beach" [syn: roll, undulate, flap, wave]
verb
Move noisily; "flags flapped in the strong wind"
verb
Move with a thrashing motion; "The bird flapped its wings"; "The eagle beat its wings and soared high into the sky" [syn: beat, flap]
verb
Move with a flapping motion; "The bird's wings were flapping" [syn: beat, flap]
verb
Make a fuss; be agitated [syn: dither, flap, pother]
verb
Pronounce with a flap, of alveolar sounds

Definition of 'Flap'

From: GCIDE
  • Flap \Flap\, v. t. [imp. & p. p. Flapped; p. pr. & vb. n. Flapping.] [Prob. of imitative origin; cf. D. flappen, E. flap, n., flop, flippant, fillip.]
  • 1. To beat with a flap; to strike. [1913 Webster]
  • Yet let me flap this bug with gilded wings. --Pope. [1913 Webster]
  • 2. To move, as something broad and flaplike; as, to flap the wings; to let fall, as the brim of a hat. [1913 Webster]
  • To flap in the mouth, to taunt. [Obs.] --W. Cartwright. [1913 Webster]

Definition of 'Flap'

From: GCIDE
  • Flap \Flap\, v. i.
  • 1. To move as do wings, or as something broad or loose; to fly with wings beating the air. [1913 Webster]
  • The crows flapped over by twos and threes. --Lowell. [1913 Webster]
  • 2. To fall and hang like a flap, as the brim of a hat, or other broad thing. --Gay. [1913 Webster]

Definition of 'Flap'

From: GCIDE
  • Flap \Flap\, n. [OE. flappe, flap, blow, bly-flap; cf. D. flap, and E. flap, 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. [1913 Webster]
  • A cartilaginous flap upon the opening of the larynx. --Sir T. Browne. [1913 Webster]
  • 2. A hinged leaf, as of a table or shutter. [1913 Webster]
  • 3. 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. [1913 Webster]
  • 4. pl. (Far.) A disease in the lips of horses. [1913 Webster]
  • 5. (Aeronautics) a movable part of an airplane wing, used to increase lift or drag, especially when taking off or landing. used often in the plural. [WordNet 1.5]
  • Flap tile, a tile with a bent up portion, to turn a corner or catch a drip.
  • Flap valve (Mech.), a valve which opens and shuts upon one hinged side; a clack valve. [1913 Webster]

Synonyms of 'flap'

From: Moby Thesaurus