American English

Definition of rain verb from the Oxford Advanced American Dictionary



    Verb Forms present simple I / you / we / they rain
    he / she / it rains
    past simple rained
    -ing form raining
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  1. 1[intransitive] when it rains, water falls from the sky in drops Is it raining? It had been raining hard all night. It hardly rained at all last summer. It started to rain.
  2. 2[intransitive, transitive] to fall or to make something fall on someone or something in large quantities rain (down) (on somebody/something) Bombs rained (down) on the city's streets. Falling debris rained on us from above. He covered his face as the blows rained down on him (= he was hit repeatedly). rain something (down) (on somebody/something) The volcano erupted, raining hot ash over a wide area.
  3. Idioms
    be raining cats and dogs (informal)
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    to be raining heavily
    rain on somebody's parade (informal)
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    to spoil something for someone
    when it rains, it pours (saying)
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    used to say that when one bad thing happens to you, other bad things happen soon after
    Phrasal Verbsbe rained out
See the Oxford Advanced Learner's Dictionary entry: rain