a great flowing or overflowing of water, especially over land not usually submerged.
any great outpouring or stream: a flood of tears.
the Flood, the universal deluge recorded as having occurred in the days of Noah. Gen. 7.
the rise or flowing in of the tide (opposed to ebb ).
Archaic. a large body of water.
verb (used with object)
to overflow in or cover with a flood; fill to overflowing: Don't flood the bathtub.
to cover or fill, as if with a flood: The road was flooded with cars.
to overwhelm with an abundance of something: to be flooded with mail.
Automotive. to supply too much fuel to (the carburetor), so that the engine fails to start.
verb (used without object)
to flow or pour in or as if in a flood.
to rise in a flood; overflow.
to suffer uterine hemorrhage, especially in connection with childbirth.
to have an excessive menstrual flow.

before 900; Middle English flod (noun), Old English flōd; cognate with Gothic flōdus, Old High German fluot (German Flut)

floodable, adjective
flooder, noun
floodless, adjective
floodlike, adjective
overflood, verb
preflood, adjective
underflood, verb
unflooded, adjective
well-flooded, adjective

1. Flood, flash flood, deluge, freshet, inundation refer to the overflowing of normally dry areas, often after heavy rains. Flood is usually applied to the overflow of a great body of water, as, for example, a river, although it may refer to any water that overflows an area: a flood along the river; a flood in a basement. A flash flood is one that comes so suddenly that no preparation can be made against it; it is usually destructive, but begins almost at once to subside: a flash flood caused by a downpour. Deluge suggests a great downpouring of water, sometimes with destruction: The rain came down in a deluge. Freshet suggests a small, quick overflow such as that caused by heavy rains: a freshet in an abandoned watercourse. Inundation a literary word, suggests the covering of a great area of land by water: the inundation of thousands of acres. 8, 9. inundate, deluge.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
flood (flʌd)
1.  a.  the inundation of land that is normally dry through the overflowing of a body of water, esp a river
 b.  the state of a river that is at an abnormally high level (esp in the phrase in flood)Related: diluvial
2.  a great outpouring or flow: a flood of words
3.  a.  the rising of the tide from low to high water
 b.  Compare ebb (as modifier): the flood tide
4.  theatre short for floodlight
5.  archaic a large body of water, as the sea or a river
6.  (of water) to inundate or submerge (land) or (of land) to be inundated or submerged
7.  to fill or be filled to overflowing, as with a flood: the children's home was flooded with gifts
8.  (intr) to flow; surge: relief flooded through him
9.  to supply an excessive quantity of petrol to (a carburettor or petrol engine) or (of a carburettor, etc) to be supplied with such an excess
10.  (intr) to rise to a flood; overflow
11.  (intr)
 a.  to bleed profusely from the uterus, as following childbirth
 b.  to have an abnormally heavy flow of blood during a menstrual period
Related: diluvial
[Old English flōd; related to Old Norse flōth, Gothic flōdus, Old High German fluot flood, Greek plōtos navigable; see flow, float]

Flood1 (flʌd)
Old Testament the Flood the flood extending over all the earth from which Noah and his family and livestock were saved in the ark. (Genesis 7--8); the Deluge

Flood2 (flʌd)
Henry. 1732--91, Anglo-Irish politician: leader of the parliamentary opposition to English rule

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Word Origin & History

O.E. flod "a flowing of water, river, sea, flood," from P.Gmc. *flothuz (cf. O.Fris. flod, O.N. floð, M.Du. vloet, Ger. Flut, Goth. fiodus), from PIE verbal stem *plo-/*pleu- "flow, float" (cf. Gk. ploein "to float, swim," plotos "floating, navigable"). The verb is first attested 1660s. Related:
Flooded; flooding. Flood plain (also floodplain) is from 1873.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
flood   (flŭd)  Pronunciation Key 
A temporary rise of the water level, as in a river or lake or along a seacoast, resulting in its spilling over and out of its natural or artificial confines onto land that is normally dry. Floods are usually caused by excessive runoff from precipitation or snowmelt, or by coastal storm surges or other tidal phenomena. ◇ Floods are sometimes described according to their statistical occurrence. A fifty-year flood is a flood having a magnitude that is reached in a particular location on average once every fifty years. In any given year there is a two percent statistical chance of the occurrence of a fifty-year flood and a one percent chance of a hundred-year flood.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Bible Dictionary

Flood definition

an event recorded in Gen. 7 and 8. (See DELUGE.) In Josh. 24:2, 3, 14, 15, the word "flood" (R.V., "river") means the river Euphrates. In Ps. 66:6, this word refers to the river Jordan.

Easton's 1897 Bible Dictionary
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