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

While Casher often credited Thomas Organ’s Brad Plunkett as the engineer of the device, the wah-wah pedal was considered Casher’s brainchild. — Daniel Kreps, Rolling Stone, 8 Nov. 2026

The line got its start in 1919 as the brainchild of Coco Chanel, who created the collection with wealthy women in mind. — Erin Wisti, Footwear News, 7 Nov. 2026

The name of the magazine was the brainchild of Eunice, who was inspired by the strong, solid, African wood that evoked the heritage of the magazine’s audience. — Aaron Wright, Encyclopedia Britannica, 27 Oct. 2026

The Lovell Telescope – the brainchild of Bernard Lovell, the British physicist who worked on the government’s secret radar programme during the Second World War – became operational in the 1950s. — The Week Uk, TheWeek, 27 Oct. 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