brainchild

noun

brain·​child ˈbrān-ˌchī(-ə)ld 

: a product of one's creative effort

Synonyms of brainchild

• innovation
• invention
• creation

Examples of brainchild in a Sentence

The museum is the brainchild of a wealthy art collector.

the artificial language Esperanto was the brainchild of L. L. Zamenhof, a Polish oculist

Recent Examples on the Web

Background and creation Gilligan’s Island was the brainchild of TV producer and writer Sherwood Schwartz, who would later create The Brady Bunch (1969–74). — Encyclopedia Britannica, 5 Aug. 2026

The league, the brainchild of Commissioner Justine Siegal, features four teams with 60 players from 11 countries, including stars like Mo'ne Davis and Kelsie Whitmore. — Dan Freedman, Forbes.com, 2 Aug. 2026

Permanently parked outside pinball-centric dive bar No Quarter, Brave Idiot is the unhinged brainchild of chef Dylan Field. — Ellen Fort, Bon Appetit Magazine, 31 July 2026

In 2012, Instagram’s 20-something-year-old creators, Kevin Systrom and Mike Krieger, decided to sell their brainchild to Facebook in a $1 billion deal. — Emma Burleigh, Fortune, 29 July 2026

Word History

First Known Use

1628, in the meaning defined above

Rhymes for brainchild

• beguiled
• compiled
• defiled
• exiled
• grandchild
• profiled
• refiled
• reviled
• stepchild
• stockpiled
• domiciled
• reconciled