brain·​box ˈbrān-ˌbäks How to pronounce brainbox (audio)
variants or brain box
plural brainboxes or brain boxes
: cranium, braincase
Your brain box is about to whack the pavement—hard!Consumer Reports, July/August 1996
: mind, brain
And why did everyone insist on reminding him of his ex-wife? Because all it did was bring her right back into his head again, back into the old brainbox, where she'd always done the most damage.Robert McCarthy, Zoetrope: All-Story, Spring 2005
chiefly British : a very intelligent person
I was good at school; I was a total brain box. At a small town school, being brainy was not necessarily an asset.Karine Polwart, quoted in The (London) Times Educational Supplement, 15 Feb. 2013

Word History

First Known Use

1789, in the meaning defined at sense 1a

Time Traveler
The first known use of brainbox was in 1789

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Dictionary Entries Near brainbox

Cite this Entry

“Brainbox.” Dictionary, Merriam-Webster, Accessed 28 Nov. 2023.

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