Meaning of the word "let sleeping dogs lie" in English

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

let sleeping dogs lie

US /lɛt ˈsliːpɪŋ dɔɡz laɪ/
UK /lɛt ˈsliːpɪŋ dɒɡz laɪ/
"let sleeping dogs lie" picture

Idiom

to avoid bringing up a past problem or argument that might cause trouble if discussed again

Example:
I know you're upset about what happened, but it's probably best to let sleeping dogs lie.
They had a big argument years ago, but they decided to let sleeping dogs lie and move on.