Meaning of the word "let the cat out of the bag" in English

What does "let the cat out of the bag" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

let the cat out of the bag

US /lɛt ðə kæt aʊt əv ðə bæɡ/
UK /lɛt ðə kæt aʊt əv ðə bæɡ/
"let the cat out of the bag" picture

Idiom

1.

to reveal a secret, often accidentally

Example:
We were planning a surprise party for him, but his sister let the cat out of the bag.
I accidentally let the cat out of the bag about their engagement.
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