Meaning of the word "leading light" in English

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

leading light

US /ˈliːdɪŋ laɪt/
UK /ˈliːdɪŋ laɪt/

Noun

a prominent or influential person in a particular field or group

Example:
She was a leading light in the civil rights movement.
He's considered a leading light in modern architecture.