Meaning of the word "know the score" in English

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

know the score

US /noʊ ðə skɔr/
UK /noʊ ðə skɔr/
"know the score" picture

Idiom

1.

to know the true facts of a situation, especially the unpleasant ones

Example:
She's been in this business for years, so she really knows the score.
You don't need to explain everything to him; he already knows the score.
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