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

Origin of flood

before 900; Middle English flod (noun), Old English flōd; cognate with Gothic flōdus, Old High German fluot (German Flut)
Related formsflood·a·ble, adjectiveflood·er, nounflood·less, adjectiveflood·like, adjectiveo·ver·flood, verbpre·flood, adjectiveun·der·flood, verbun·flood·ed, adjectivewell-flood·ed, adjective

Synonyms for flood

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 Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for floodlike


    1. the inundation of land that is normally dry through the overflowing of a body of water, esp a river
    2. the state of a river that is at an abnormally high level (esp in the phrase in flood)Related adjective: diluvial
  1. a great outpouring or flowa flood of words
    1. the rising of the tide from low to high water
    2. (as modifier)the flood tide Compare ebb (def. 3)
  2. theatre short for floodlight
  3. archaic a large body of water, as the sea or a river
  1. (of water) to inundate or submerge (land) or (of land) to be inundated or submerged
  2. to fill or be filled to overflowing, as with a floodthe children's home was flooded with gifts
  3. (intr) to flow; surgerelief flooded through him
  4. 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
  5. (intr) to rise to a flood; overflow
  6. (intr)
    1. to bleed profusely from the uterus, as following childbirth
    2. to have an abnormally heavy flow of blood during a menstrual period
Derived Formsfloodable, adjectiveflooder, nounfloodless, adjective

Word Origin for flood

Old English flōd; related to Old Norse flōth, Gothic flōdus, Old High German fluot flood, Greek plōtos navigable; see flow, float


  1. the Flood Old Testament 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


  1. Henry . 1732–91, Anglo-Irish politician: leader of the parliamentary opposition to English rule
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for floodlike



1660s, from flood (n.). Related: Flooded; flooding.



Old English flod "a flowing of water, flood, an overflowing of land by water, Noah's Flood; mass of water, river, sea, wave," from Proto-Germanic *flothuz (cf. Old Frisian flod, Old Norse floð, Middle Dutch vloet, Dutch vloed, German Flut, Gothic flodus), from PIE verbal stem *pleu- "flow, float" (see pluvial). Figurative use by mid-14c.

Online Etymology Dictionary, © 2010 Douglas Harper

floodlike in Science


  1. 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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.