noun
plural rains
water that falls in drops from clouds in the sky [noncount]
[noncount] :weather in which there is a lot of rain :rainy weather
rains [plural] :large amounts of rain that fall at a particular time of year
[singular] :a large amount of something falling from above
(as) right as rain
rain or shine
or come rain, come shine or come rain or come shine - used to say that something will happen even it rains
verb
rains; rained; raining
[no obj] - used with it to say that rain is falling
always followed by an adverb or preposition [no obj] :to fall from above in large amounts
[+ obj] :to cause (something) to fall in large amounts
be rained out
US or Brit be rained off
to be canceled because of rain
rain cats and dogs
informal :to rain very hard
rain on someone's parade
US informal :to spoil someone's pleasure
when it rains, it pours
US or chiefly Brit it never rains but it pours
informal - used to say that when something bad happens other bad things usually happen at the same time