Meaning of the word "the world and his wife" in English

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

the world and his wife

US /ðə wɜːrld ænd hɪz waɪf/
UK /ðə wɜːrld ænd hɪz waɪf/
"the world and his wife" picture

Idiom

1.

a very large number of people; everyone

Example:
When the new store opened, the world and his wife were there.
Don't tell anyone, or soon the world and his wife will know.
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