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English definition of “rain”

rain

noun [U] uk   /reɪn/ us  
A1 drops of water from clouds: Rain is forecast for tomorrow. Come inside out of the rain. We had heavy/light rain all day. We got caught in pouring/torrential (= a lot of) rain without either raincoats or umbrellas. There will be showers of rain/rain showers (= short periods of rain) in the east. It looks like rain (= as if rain is going to fall). the rains [plural] the season of the year in tropical countries when there is a lot of rain: Villagers are now waiting for the rains to come so that the rice will grow. This is the third year in a row that the rains have failed.

rain

verb [I] uk   /reɪn/ us  
A1 If it rains, water falls from the sky in small drops: I think it's starting to rain. It's raining hard/heavily (= a large amount of rain is falling).
(Definition of rain from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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