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Verb: rain cats and dogs
Usage: informal
  1. Rain heavily
    "Put on your rain coat-- it's raining cats and dogs outside!";
    - pour, pelt, rain buckets [informal], belt down [informal], pelt down [informal], tip [Brit, informal], chuck it down [Brit, informal], chuck [Brit, informal], bucket [Brit, informal], teem [informal]

Derived forms: raining cats and dogs, rained cats and dogs, rains cats and dogs

Type of: rain, rain down

Encyclopedia: Rain cats and dogs