Meaning of the word "the exception that proves the rule" in English

What does "the exception that proves the rule" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

the exception that proves the rule

US /ðɪ ɪkˈsɛpʃən ðæt pruːvz ðə ruːl/
UK /ðɪ ɪkˈsɛpʃən ðæt pruːvz ðə ruːl/
"the exception that proves the rule" picture

Idiom

1.

a case that does not follow a rule but, by its very existence, shows that the rule is generally true

Example:
Most people here are quiet, but John is very outgoing; he's the exception that proves the rule.
My boss usually doesn't allow working from home, but he let me today because of my appointment. It's the exception that proves the rule.
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