Idioms

    rain cats and dogs, Informal. to rain very heavily or steadily: We canceled our picnic because it rained cats and dogs.

Origin of rain

before 900; (noun) Middle English rein; Old English regn, rēn, cognate with Dutch, German regen, Old Norse regn, Gothic rign; (v.) Middle English reinen, Old English regnian

Related forms

rain·less, adjectiverain·less·ness, noun

Can be confused

rain reign rein
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for rain

British Dictionary definitions for rain

rain

/ (reɪn) /

noun

verb

US and Canadian term: rained out
See also rains

Derived Forms

rainless, adjective

Word Origin for rain

Old English regn; related to Old Frisian rein, Old High German regan, Gothic rign
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

Science definitions for rain

rain

[ rān ]

Water that condenses from water vapor in the atmosphere and falls to Earth as separate drops from clouds. Rain forms primarily in three ways: at weather fronts, when the water vapor in the warmer mass of air cools and condenses; along mountain ranges, when a warm mass of air is forced to rise over a mountain and its water vapor cools and condenses; and by convection in hot climates, when the water vapor in suddenly rising masses of warm air cools and condenses. See also hydrologic cycle.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Idioms and Phrases with rain

rain


In addition to the idioms beginning with rain

  • rain cats and dogs
  • rain check
  • rain on one's parade
  • rain or shine
  • rain out
  • rainy day, a

also see:

  • come in out of the rain
  • it never rains but it pours
  • right as rain
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.