English dictionary, thesaurus, translations & etymology
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noun

brainchild

BRAYNT-shyld
noun
1
An original idea, invention, or project created by a particular person or group.
"The charity was the brainchild of a retired teacher."
"This whole app was his brainchild from the very beginning."

How to Use Brainchild

Learner’s notes

In plain EnglishSomething someone came up with and is closely associated with, as if they created it like a child.

Common pairings
the brainchild of someone's brainchild

Word Forms

brainchilded past tense, brainchilds plural, brainchildren plural, brainchilds singular

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The charity was the _____ of a retired teacher.

Etymology

A compound of brain and child — an idea "born" from someone's mind.

Definitions: FreeDict original editorial