Simple Definition of brainchild

from our Learner's Dictionary

brainchild

noun

ˈbreɪnˌtʃajəld

: an idea, plan, or creation of one person

The museum is the brainchild of a wealthy art collector.

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“Brainchild.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/brainchild. Accessed 21 Jun. 2026.

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