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Definition of brainchild

brainchild

/ˈbreɪn.tʃaɪld/
brain · child
Plural:brainchildren
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brainchild Lexical Profile

brainchild Game Scores & Validity

• noun

1

An original idea, plan, or invention created by a specific person or group.

Example

"The annual music festival was the brainchild of three local college students."

Synonyms
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Antonyms
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• Nearby Words

brain
brainbox
braincase
brainchild
braindead
brainfart
brainfood

Word Origin & Etymology

Coined in the early 17th century as a compound of 'brain' and 'child', drawing on the classical metaphor that the mind conceives and gives birth to ideas.

Cite this Entry

Wordmom. (2026). Definition of Brainchild. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/brainchild
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