brainchild

brain·child
B3R1A1I1N1C3H4I1L1D2
UK/ˈbɹeɪnt͡ʃaɪld/US/ˈbɹeɪnˌt͡ʃaɪld/

noun

A creation of one's brain; an original idea or innovation of a person or group of people, an organization, etc.

“The entire project was the brainchild of a small group of visionaries.”

Less commonScrabble 18

Meanings

nounbrainchild (plural brainchilds or brainchildren)

plural brainchilds · plural brainchildren

  1. informalA creation of one's brain; an original idea or innovation of a person or group of people, an organization, etc.

    The entire project was the brainchild of a small group of visionaries.

    5 more examples

    A brayne-child o' mine ovvne! and I am proud on't!

    1629 (first performance), B[en] Jonson, The New Inne. Or, The Light Heart. […], London: […] Thomas Harper, for Thomas Alchorne, […], published 1631, →OCLC, Act I, scene i, signature B, recto

    I am glad you find so many lovers of your brain children in the West, although I knew it would be so.

    1877 July 3 (date written), Thomas J. Mumford, “Editorial Life. [Letter to Mrs. W.]”, in Life and Letters of Thomas J. Mumford, […], Boston, Mass.: George H. Ellis, […], published 1879, →OCLC, page 110

    Then, gradually, the almost maternal yearning to see his brain-child [a play] once more, which can never be wholly crushed out of a young dramatist, returned to him—faintly at first, then getting stronger by degrees till it could no longer be resisted. True, he knew that when he beheld it, the offspring of his brain would have been mangled almost out of recognition, but that did not deter him.

    1920 April 10 – August 28, Pelham Grenville Wodehouse, chapter 17, in The Little Warrior [Jill the Reckless], New York, N.Y.: George H[enry] Doran Company, published 8 October 1920, →OCLC, section 1, page 312

    Inspiration's old lady gave birth to a new brainchild one afternoon at a Rhythm Kings rehearsal, when I took a few choruses on Jack Pettis' C-melody sax while he was out humoring his bladder.

    1946, Milton “Mezz” Mezzrow, Bernard Wolfe, “Quit Foolin’ with That Comb”, in Really the Blues, New York, N.Y.: Random House, book 1 (1899–1923: A Nothin’ but a Child), page 54

    We had these people for years and years, such as Mr. [Robert] McNamara and all of his brainchilds, come up here, and he said everything is going to work out fine and everybody followed him. Look what a mess we got into in Southeast Asia.

    1975 May 14, Otto E[rnest] Passman, chairman, “International Development Association”, in Foreign Assistance and Related Agencies Appropriations for 1976: Hearings before a Subcommittee of the Committee on Appropriations, House of Representatives, Ninety-fourth Congress, First Session … Part 1 …, Washington, D.C.: U.S. Government Printing Office, →OCLC, page 728
verbbrainchild (third-person singular simple present brainchilds, present participle brainchilding, simple past and past participle brainchilded)

present singular third person brainchilds · participle present brainchilding · participle past brainchilded · past brainchilded

  1. raretransitiveTo think up (an idea or innovation); to come up with.

    John Law brainchilded the establishment of a national bank to expedite and secure the creation of credit.

    2014, Mary Lindemann, “Virtuous commerce”, in The Merchant Republics: Amsterdam, Antwerp, and Hamburg, 1648–1790, Cambridge University Press, →ISBN, page 257

Synonyms & antonyms

nouna product of your creative thinking and work

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

Translations

Arabic بنت الفكر, وليدة فكر
  • بنت الفكرcreation of one’s brain — see also idea, innovation
  • وليدة فكرcreation of one’s brain — see also idea, innovation
  • فكرة مبتكرةcreation of one’s brain — see also idea, innovation
Chinese Mandarin 智力产物, 主意
  • 智力产物creation of one’s brain — see also idea, innovation
  • 主意creation of one’s brain — see also idea, innovation
Dutch geesteskind, hersenkind
  • geesteskindcreation of one’s brain — see also idea, innovation
  • hersenkindcreation of one’s brain — see also idea, innovation
  • ideecreation of one’s brain — see also idea, innovation
Finnish luomus
  • luomuscreation of one’s brain — see also idea, innovation
French création
  • créationcreation of one’s brain — see also idea, innovation
German Geistesprodukt, geistiges Kind
  • Geistesproduktcreation of one’s brain — see also idea, innovation
  • geistiges Kindcreation of one’s brain — see also idea, innovation
Hungarian agyszülemény
  • agyszüleménycreation of one’s brain — see also idea, innovation
Italian frutto ingegno
  • frutto ingegnocreation of one’s brain — see also idea, innovation
Polish wynalazek
  • wynalazekcreation of one’s brain — see also idea, innovation
Portuguese criação
  • criaçãocreation of one’s brain — see also idea, innovation
Russian де́тище
  • де́тище (détišče)creation of one’s brain — see also idea, innovation
Spanish bodeguero, invención
  • bodeguerocreation of one’s brain — see also idea, innovation
  • invencióncreation of one’s brain — see also idea, innovation
Swedish tankefoster
  • tankefostercreation of one’s brain — see also idea, innovation
Turkish buluş
  • buluşcreation of one’s brain — see also idea, innovation
Cite this entry
APA

brainchild. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/brainchild

MLA

“brainchild.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/brainchild. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “brainchild,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/brainchild.

Source: brainchild on Wiktionary, CC BY-SA 4.0.