Meaning of the word "rain cats and dogs" in English

What does "rain cats and dogs" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

rain cats and dogs

US /reɪn kæts ænd dɔɡz/
UK /reɪn kæts ænd dɔɡz/
"rain cats and dogs" picture

Idiom

1.

to rain very heavily

Example:
I can't go out now, it's raining cats and dogs!
We had to cancel the picnic because it started to rain cats and dogs.
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