Meteorology[uncountable] water that is condensed from the vapor in the atmosphere and falls to earth in drops.
Meteorologya rainfall, rainstorm, or shower: [countable]a heavy rain.[uncountable]a fifty percent chance of rain.
Meteorologyrains, [plural* usually: the + ~] a rainy season; seasonal rainfall.
a heavy and continuous fall of something usually unwelcome:[countable* usually singular]a rain of blows.
v.
(of rain) to fall:[no object* it + ~]It rained all night.
to (cause to) come down like rain: [no object]Bombs rained from above. Tears rained from their eyes.[~ + object]The jets rained bombs down on the enemy position.
to offer or give in great quantity; shower:[~ + object]to rain favors upon a person.
rain out, [~ + object* usually: be +~-ed] to cancel or postpone because of rain:The last game was rained out.
Meteorologywater that is condensed from the aqueous vapor in the atmosphere and falls to earth in drops more than 1⁄50 in. (0.5 mm) in diameter. Cf. drizzle (def. 6).
Meteorologya rainfall, rainstorm, or shower:We had a light rain this afternoon.
Meteorologyrains, the rainy season; seasonal rainfall, as in India.
Meteorologyweather marked by steady or frequent rainfall:We had rain most of last summer.
a heavy and continuous descent or inflicting of anything:a rain of blows; a rain of vituperation.
v.i.
(of rain) to fall (usually used impersonally with it as subject):It rained all night.
to fall like rain:Tears rained from their eyes.
to send down rain:The lightning flashed and the sky rained on us in torrents.
v.t.
to send down in great quantities, as small pieces or objects:People on rooftops rained confetti on the parade.
to offer, bestow, or give in great quantity:to rain favors upon a person.
to deal, hurl, fire, etc., repeatedly:to rain blows on someone's head.
rain cats and dogs, [Informal.]to rain very heavily or steadily:We canceled our picnic because it rained cats and dogs.
rain out, to cause, by raining, the cancellation or postponement of a sports event, performance, or the like:The double-header was rained out yesterday.
bef. 900; (noun, nominal) Middle English rein; Old English regn, rēn, cognate with Dutch, German regen, Old Norse regn, Gothic rign; (verb, verbal) Middle English reinen, Old English regnian
rain′less, adj. rain′less•ness, n.
10.See corresponding entry in Unabridged lavish, shower, pour.