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Word of the Day Tuesday, June 9, 2026

brainiac

/ˈbreɪniæk/ noun · British & US
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What does brainiac mean?

noun

A person of great intellectual power or ability; a genius. A person who is extremely knowledgeable or intelligent.

Example

"The brainiac of the group came up with a solution to the complex problem."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for brainiac

Antonyms of brainiac

Rhymes with brainiac

Etymologically related