Flap

• POS: Noun, Verb (usu participle), Verb (intransitive), Verb (transitive)

CIDE DICTIONARY

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."  [1913 Webster]
•  A hinged leaf, as of a table or shutter.  [1913 Webster]
•  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]
•  A disease in the lips of horses.  [1913 Webster]
•  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.

Flap, v. t. [Prob. of imitative origin; cf. D. flappen, E. flap, n., flop, flippant, fillip.].

•  To beat with a flap; to strike.  [1913 Webster]

  "Yet let me flap this bug with gilded wings."  [1913 Webster]
•  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.

Flap, v. i. 

•  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."  [1913 Webster]
•  To fall and hang like a flap, as the brim of a hat, or other broad thing.  Gay.  [1913 Webster]

OXFORD DICTIONARY

Flap, v. & n.
--v. (flapped, flapping)
1 a tr. move (wings, the arms, etc.) up and down when flying, or as if flying. b intr. (of wings, the arms, etc.) move up and down; beat.
2 intr. colloq. be agitated or panicky.
3 intr. (esp. of curtains, loose cloth, etc.) swing or sway about; flutter.
4 tr. (usu. foll. by away, off) strike (flies etc.) with something broad; drive.
5 intr. colloq. (of ears) listen intently.
--n.
1 a piece of cloth, wood, paper, etc. hinged or attached by one side only and often used to cover a gap, e.g. a pocket-cover, the folded part of an envelope, a table-leaf.
2 one up-and-down motion of a wing, an arm, etc.
3 colloq. a state of agitation; panic (don't get into a flap).
4 a hinged or sliding section of a wing used to control lift; an aileron.
5 a light blow with something broad.
6 an open mushroom-top.

Derivative

flappy adj.

Etymology

ME, prob. imit.

THESAURUS

Flap

Bedlam let loose, ado, agitation, applique, argument, bag, bang, baste, batter, beat, beating, bedlam, bicker, bilge, blain, blast, bleb, blister, blob, bluster, bobbery, boil, boiling, boss, bother, botheration, bow, box, brandish, brawl, broil, brouhaha, bubble, buffet, bulb, bulge, bulla, bump, bunch, burl, burst, bust, bustle, button, cacophony, cahot, cascade, chaos, charivari, chine, chirm, churn, clamor, clangor, clap, clash, clatter, clump, coat, coating, collop, commotion, condyle, confusion, conturbation, convex, covering, crack, crash, crump, cuff, cut, daggle, dance, dangle, deal, depend, din, discomposure, discord, disk, disorder, dispute, disquiet, disquietude, distress, disturbance, dither, donnybrook, dowel, drabble, drag, draggle, drape, droop, drub, drunken brawl, dustup, ear, ebullition, embroilment, excitement, fall, fanaticism, feery-fary, ferment, fermentation, feuille, fever, feverishness, fidgetiness, fidgets, film, fit, flail, flange, flapping, flaunt, flick, flicker, flip, flit, flitter, float, flop, flourish, flow, flurry, fluster, flusteration, flustration, flutter, flutteration, flutteriness, fly, foil, fold, foment, fomentation, foofaraw, fracas, free-for-all, frenzy, fret, fume, furor, furore, fury, fuss, fussiness, gall, gnarl, go pitapat, gutter, hammer, handle, hang, hang down, hell broke loose, hill, howl, hubbub, hue and cry, hullabaloo, hump, hunch, hurly-burly, imbrication, inquietude, jangle, jitters, jog, joggle, jumpiness, knob, knock, knot, knur, knurl, lambaste, lamella, lamina, laminated glass, laminated wood, lap, lappet, larrup, lash, lather, leaf, lip, loop, lop, loud noise, lump, maelstrom, malaise, maul, membrane, moil, mole, mountain, nerviness, nervosity, nervousness, nevus, nod, noise, noise and shouting, nub, nubbin, nubble, oscillate, oscillation, outcry, overlap, overlapping, overlay, overlayer, palpitate, palpitation, pandemonium, pane, panel, panic, papilloma, passion, paste, patina, patter, peel, peg, pellicle, pelt, pend, perturbation, pitapat, pitter-patter, plait, plank, plate, plating, ply, plywood, pommel, pother, pound, pucker, pulse, pulverize, pummel, quarrel, quiver, racket, rage, rap, rasher, rattle, report, restlessness, rhubarb, rib, ridge, ring, roar, roil, rout, row, ruckus, ruction, rumble, rumpus, safety glass, sag, scramble, scum, seethe, seething, shake, sheet, shindy, shivaree, shoulder, skin, slab, slam, slap, slat, sledgehammer, slice, smack, spank, spasm, spine, splat, splutter, spurt, sputter, state, stew, stir, storminess, stripe, stud, style, swag, swap, sweat, swing, swirl, swivet, tab, table, tablet, tail, tap, tempestuousness, thrash, thresh, throb, thump, thunder, thunderclap, thwack, tintamarre, tizzy, to-do, trail, trepidation, trepidity, tubercle, tubercule, tumult, tumultuation, tumultuousness, turbidity, turbulence, turmoil, twitter, twitteration, undulate, unease, unquiet, unrest, uproar, upset, veneer, verruca, vesicle, vibrate, vortex, wafer, wag, waggle, wale, wallop, wart, wave, waver, weep, welt, whack, wham, whap, whip, whirl, whomp, whop, wield, wigwag, wildness, zeal, zealousness

ROGET THESAURUS

Flap

Adjunct

N adjunct, addition, additament, additum, affix, appelidage, annexe, annex, augment, augmentation, increment, reinforcement, supernumerary, accessory, item, garnish, sauce, accompaniment, adjective, addendum, complement, supplement, continuation, rider, offshoot, episode, side issue, corollary, piece, flap, lappet, skirt, embroidery, trappings, cortege, tail, suffix, wing, additional, alate, alated, winged, in addition.

Pendency

N pendency, dependency, suspension, hanging, pedicel, pedicle, peduncle, tail, train, flap, skirt, pigtail, pony tail, pendulum, hangnail peg, knob, button, hook, nail, stud, ring, staple, tenterhook, fastening, spar, horse, pendent, pendulous, pensile, hanging, beetling, jutting over, overhanging, projecting, dependent, suspended, loose, flowing, having a peduncle, pedunculate, tailed, caudate.

VB be pendent, hang, depend, swing, dangle, swag, daggle, flap, trail, flow, beetle, suspend, hang, sling, hook up, hitch, fasten to, append.

Impulse

VB flash on the mind, say what comes uppermost, improvise, extemporize, give an impetus, impel, push, start, give a start to, set going, drive, urge, boom, thrust, prod, foin, cant, elbow, shoulder, jostle, justle, hustle, hurtle, shove, jog, jolt, encounter, run against, bump against, butt against, knock one's head against, run one's head against, impinge, boost, bunt, carom, clip y, fan, fan out, jab, plug, strike, knock, hit, tap, rap, slap, flap, dab, pat, thump, beat, blow, bang, slam, dash, punch, thwack, whack, hit hard, strike hard, swap, batter, dowse, baste, pelt, patter, buffet, belabor, fetch one a blow, poke at, pink, lunge, yerk, kick, calcitrate, butt, strike at, whip, come into a collision, enter into collision, collide, sideswipe, foul, fall foul of, run foul of, telescope, throw.

Agitation

VB be agitated, shake, tremble, tremble like an aspen leaf, quiver, quaver, quake, shiver, twitter, twire, writhe, toss, shuffle, tumble, stagger, bob, reel, sway, wag, waggle, wriggle, wriggle like an eel, dance, stumble, shamble, flounder, totter, flounce, flop, curvet, prance, cavort, squirm, throb, pulsate, beat, palpitate, go pitapat, flutter, flitter, flicker, bicker, bustle, ferment, effervesce, foam, boil, boil over, bubble up, simmer, toss about, jump about, jump like a parched pea, shake like an aspen leaf, shake to its center, shake to its foundations, be the sport of the winds and waves, reel to and fro like a drunken man, move from post to pillar and from pillar to post, drive from post to pillar and from pillar to post, keep between hawk and buzzard, agitate, shake, convulse, toss, tumble, bandy, wield, brandish, flap, flourish, whisk, jerk, hitch, jolt, jog, joggle, jostle, buffet, hustle, disturb, stir, shake up, churn, jounce, wallop, whip, vellicate.