Meaning of the word brains in English

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

brains

US /breɪnz/
UK /breɪnz/

Plural Noun

an intelligent person, especially one who is good at science or mathematics

Example:
She's the brains behind the whole operation.
He's got the brains to solve this complex problem.