1.  A great flow of water; a body of moving water; the flowing stream, as of a river; especially, a body of water, rising, swelling, and overflowing land not usually thus covered; a deluge; a freshet; an inundation. [1913 Webster]
"A covenant never to destroy
The earth again by flood." [1913 Webster]

2.  The flowing in of the tide; the semidiurnal swell or rise of water in the ocean; -- opposed to ebb; as, young flood; high flood. [1913 Webster]
"There is a tide in the affairs of men,
Which, taken at the flood, leads on to fortune." [1913 Webster]

3.  A great flow or stream of any fluid substance; as, a flood of light; a flood of lava; hence, a great quantity widely diffused; an overflowing; a superabundance; as, a flood of bank notes; a flood of paper currency. [1913 Webster]

4.  Menstrual disharge; menses. Harvey. [1913 Webster]

1.  To overflow; to inundate; to deluge; as, the swollen river flooded the valley. [1913 Webster]

2.  To cause or permit to be inundated; to fill or cover with water or other fluid; as, to flood arable land for irrigation; to fill to excess or to its full capacity; as, to flood a country with a depreciated currency. [1913 Webster]

flood, n. & v.
--n.
1 a an overflowing or influx of water beyond its normal confines, esp. over land; an inundation. b the water that overflows.
2 a an outpouring of water; a torrent (a flood of rain). b something resembling a torrent (a flood of tears; a flood of relief).
3 the inflow of the tide (also in comb. : flood-tide).
4 colloq. a floodlight.
5 (the Flood) the flood described in Genesis.
6 poet. a river; a stream; a sea.
--v.
1 tr. a cover with or overflow in a flood (rain flooded the cellar). b overflow as if with a flood (the market was flooded with foreign goods).
2 tr. irrigate (flooded the paddy fields).
3 tr. deluge (a burning house, a mine, etc.) with water.
4 intr. (often foll. by in, through) arrive in great quantities (complaints flooded in; fear flooded through them).
5 intr. become inundated (the bathroom flooded).
6 tr. overfill (a carburettor) with petrol.
7 intr. experience a uterine haemorrhage.
8 tr. (of rain etc.) fill (a river) to overflowing.

Idiom:
flood and field sea and land. flood out drive out (of one's home etc.) with a flood. flood-tide the periodical exceptional rise of the tide because of lunar or solar attraction.

Etymology:
OE flod f. Gmc

N  sufficiency, adequacy, enough, withal, satisfaction, competence, no less, quantum sufficit, Q, S, mediocrity, fill, fullness, plenitude, plenty, abundance, copiousness, amplitude, galore, lots, profusion, full measure, good measure pressed down and running, over, luxuriance, affluence, fat of the land, a land flowing with milk and honey, cornucopia, horn of plenty, horn of Amalthaea, mine, outpouring, flood, tide, repletion, satiety, sufficient, enough, adequate, up to the mark, commensurate, competent, satisfactory, valid, tangible, measured, moderate, full, ample, plenty, plentiful, plenteous, plenty as blackberries, copious, abundant, abounding, replete, enough and to spare, flush, choke-full, chock-full, well-stocked, well- provided, liberal, unstinted, unstinting, stintless, without stint, unsparing, unmeasured, lavish, wholesale, rich, luxuriant, affluent, wantless, big with, unexhausted, unwasted, exhaustless, inexhaustible, sufficiently, amply Adj, full, in abundance, with no sparing hand, to one's heart's content, ad libitum, without stint, cut and come again, das Beste ist gut genug.

VB  superabound, overabound, know no bounds, swarm, meet one at every turn, creep with, crawl with, bristle with, overflow, run over, flow over, well over, brim over, run riot, overrun, overstock, overlay, overcharge, overdose, overfeed, overburden, overload, overdo, overwhelm, overshoot the mark, surcharge, supersaturate, gorge, glut, load, drench, whelm, inundate, deluge, flood, drug, drug the market, hepatize, choke, cloy, accloy, suffocate, pile up, lay on thick, impregnate with, lavish, send coals to Newcastle, carry coals to Newcastle, carry owls to Athens, teach one's grandmother to suck eggs, pisces natare docere, kill the slain, gild refined gold, gild the lily, butter one's bread on both sides, put butter upon bacon, employ a steam engine to crack a nut, exaggerate, wallow in roll in, remain on one's hands, hang heavy on hand, go a begging.

N  greatness, magnitude, size, multitude, immensity, enormity, infinity, might, strength, intensity, fullness, importance, great quantity, quantity, deal, power, sight, pot, volume, world, mass, heap, stock, peck, bushel, load, cargo, cartload, wagonload, shipload, flood, spring tide, abundance, principal part, chief part, main part, greater part, major part, best part, essential part, bulk, mass, great, greater, large, considerable, fair, above par, big, huge, Herculean, cyclopean, ample, abundant, full, intense, strong, sound, passing, heavy, plenary, deep, high, signal, at its height, in the zenith, world-wide, widespread, far-famed, extensive, wholesale, many, goodly, noble, precious, mighty, sad, grave, heavy, serious, far gone, arrant, downright, utter, uttermost, crass, gross, arch, profound, intense, consummate, rank, uninitiated, red-hot, desperate, glaring, flagrant, stark staring, thorough-paced, thoroughgoing, roaring, thumping, extraordinary, important, unsurpassed, complete, august, grand, dignified, sublime, majestic, vast, immense, enormous, extreme, inordinate, excessive, extravagant, exorbitant, outrageous, preposterous, unconscionable, swinging, monstrous, overgrown, towering, stupendous, prodigious, astonishing, incredible, marvelous, unlimited, unapproachable, unutterable, indescribable, ineffable, unspeakable, inexpressible, beyond expression, fabulous, undiminished, unabated, unreduced, unrestricted, absolute, positive, stark, decided, unequivocal, essential, perfect, finished, remarkable, of mark, marked, pointed, veriest, noteworthy, renowned, truly, decidedly, unequivocally, purely, absolutely, seriously, essentially, fundamentally, radically, downright, in all conscience, for the most part, in the main, entirely, abundantly, widely, far and wide, greatly, much, muckle, well, indeed, very, very much, a deal, no end of, most, not a little, pretty, pretty well, enough, in a great measure, richly, to a large extent, to a great extent, to a gigantic extent, on a large scale, so, never so, ever so, ever so dole, scrap, shred, tag, splinter, rag, much, by wholesale, mighty, powerfully, with a witness, ultra, in the extreme, extremely, exceedingly, intensely, exquisitely, acutely, indefinitely, immeasurably, beyond compare, beyond comparison, beyond measure, beyond all bounds, incalculably, infinitely, preeminently, superlatively, immoderately, monstrously, preposterously, inordinately, exorbitantly, excessively, enormously, out of all proportion, with a vengeance, particularly, remarkably, singularly, curiously, uncommonly, unusually, peculiarly, notably, signally, strikingly, pointedly, mainly, chiefly, famously, egregiously, prominently, glaringly, emphatically, kat exochin, strangely, wonderfully, amazingly, surprisingly, astonishingly, incredibly, marvelously, awfully, stupendously, peculiarly, furiously, severely, desperately, tremendously, extravagantly, confoundedly, deucedly, devilishly, with a vengeance, a outrance, a toute outrance, painfully, sadly, grossly, sorely, bitterly, piteously, grievously, miserably, cruelly, woefully, lamentably, shockingly, frightfully, dreadfully, fearfully, terribly, horribly, a maximis ad minima, greatness knows itself, mightiest powers by deepest calms are fed, minimum decet libere cui multum licet, some are born great, some achieve greatness, and some have greatness thrust upon them.

N  assemblage, collection, collocation, colligation, compilation, levy, gathering, ingathering, muster, attroupement, team, concourse, conflux, congregation, contesseration, convergence, meeting, levee, reunion, drawing room, at home, conversazione, assembly, congress, convention, conventicle, gemote, conclave, posse, posse comitatus, Noah's ark, miscellany, collectanea, museum, menagerie, museology, crowd, throng, group, flood, rush, deluge, rabble, mob, press, crush, cohue, horde, body, tribe, crew, gang, knot, squad, band, party, swarm, shoal, school, covey, flock, herd, drove, atajo, bunch, drive, force, mulada, remuda, roundup, array, bevy, galaxy, corps, company, troop, troupe, task force, army, regiment, host, populousness, clan, brotherhood, fraternity, sorority, association, volley, shower, storm, cloud, group, cluster, Pleiades, clump, pencil, set, batch, lot, pack, budget, assortment, bunch, parcel, packet, package, bundle, fascine, fasces, bale, seron, seroon, fagot, wisp, truss, tuft, shock, rick, fardel, stack, sheaf, haycock, fascicle, fascicule, fasciculus, gavel, hattock, stook, accumulation, congeries, heap, lump, pile, rouleau, tissue, mass, pyramid, bing, drift, snowball, snowdrift, acervation, cumulation, glomeration, agglomeration, conglobation, conglomeration, conglomerate, coacervate, coacervation, coagmentation, aggregation, concentration, congestion, omnium gaterum, spicilegium, black hole of Calcutta, quantity, collector, gatherer, whip, whipper in, assembled, closely packed, dense, serried, crowded to suffocation, teeming, swarming, populous, as thick as hops, all of a heap, fasciculated cumulative, the plot thickens, acervatim, tibi seris tibi metis.

N  prosperity, welfare, well-being, affluence, success, thrift, roaring trade, good fortune, smiles of fortune, blessings, godsend, luck, good luck, run of luck, sunshine, fair weather, fair wind, palmy days, bright days, halcyon days, piping times, tide, flood, high tide, Saturnia regna, Saturnian age, golden time, golden age, bed of roses, fat city, fat of the land, milk and honey, loaves and fishes, made man, lucky dog, enfant gate, spoiled child of fortune, upstart, parvenu, skipjack, mushroom, prosperous, thriving, in a fair way, buoyant, well off, well to do, well to do in the world, set up, at one's ease, rich, in good case, in full, in high feather, fortunate, lucky, in luck, born with a silver spoon in one's mouth, born under a lucky star, on the sunny side of the hedge, auspicious, propitious, providential, palmy, halcyon, agreeable, couleur de rose, prosperously, swimmingly, as good luck would have it, beyond all hope, one's star in the ascendant, all for the best, one's course runs smooth, chacun est l'artisan de sa fortune, donec eris felix multos numerabis amicos, felicitas multos habet amicos, felix se nescit amari, good luck go with thee, nulli est homini perpetuum bonum.

N  progress, progression, progressiveness, advancing, advance, advancement, ongoing, flood, tide, headway, march, rise, improvement, advancing, progressive, profluent, advanced, forward, onward, forth, on, ahead, under way, en route for, on one's way, on the way, on the road, on the high road, on the road to, in progress, in mid progress, in transitu, vestigia nulla retrorsum, westward the course of empire takes its way.

N  river, running water, jet, spirt, spurt, squirt, spout, spray, splash, rush, gush, jet d'eau, sluice, water spout, water fall, cascade, force, foss, lin, linn, ghyll, Niagara, cataract, rapids, white water, catadupe, cataclysm, debacle, inundation, deluge, chute, washout, rain, rainfall, serein, shower, scud, downpour, driving rain, drenching rain, cloudburst, hyetology, hyetography, predominance of Aquarius, reign of St. Swithin, mizzle, drizzle, stillicidum, plash, dropping, falling weather, northeaster, hurricane, typhoon, stream, course, flux, flow, profluence, effluence, defluxion, flowing, current, tide, race, coulee, spring, artesian well, fount, fountain, rill, rivulet, gill, gullet, rillet, streamlet, brooklet, branch, runnel, sike, burn, beck, creek, brook, bayou, stream, river, reach, tributary, geyser, spout, waterspout, body of water, torrent, rapids, flush, flood, swash, spring tide, high tide, full tide, bore, tidal bore, eagre, hygre, fresh, freshet, indraught, reflux, undercurrent, eddy, vortex, gurge, whirlpool, Maelstrom, regurgitation, overflow, confluence, corrivation, wave, billow, surge, swell, ripple, anerythmon gelasma, beach comber, riffle, rollers, ground swell, surf, breakers, white horses, whitecaps, rough sea, heavy sea, high seas, cross sea, long sea, short sea, chopping sea, hydrodynamics, hydraulics, hydraulicostatics, rain gauge, flowmeter, pegology, irrigation, pump, watering pot, watering cart, hydrant, syringe, garden hose, lawn spray, bhisti, mussuk, fluent, diffluent, profluent, affluent, tidal, flowing, meandering, meandry, meandrous, fluvial, fluviatile, streamy, showery, rainy, pluvial, stillicidous, stillatitious, for men may come and men may go but I go on foreve, that old man river, he just keeps rolling along.

flash flood, flood control, flood in, flood lamp, flood out, flood plain, flood the market, flood tide, in flood, noah and the flood, noah's flood, the flood