brain Meaning in the Cambridge English Dictionary Cambridge dictionaries logo
Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

Meaning of “brain” in the English Dictionary

"brain" in British English

See all translations

brainnoun

uk   /breɪn/  us   /breɪn/
A2 [C] the ​organ inside the ​head that ​controlsthought, ​memory, ​feelings, and ​activity: Doctors ​trieddesperately to ​reduce the ​swelling in her brain. The ​accidentleft him with ​permanent brain damage. His ​wifedied from a brain tumour.
C1 [C] used to refer to ​intelligence: Marie has an ​amazing brain (= is very ​intelligent). That can't ​possibly be the ​right way to do it - useyour brain! The ​poorchildinherited his mother's brains and his father's ​looks. He's got brains but he's too ​lazy to use them (= he is ​intelligent but ​lazy).
[C usually plural] informal a very ​intelligentperson, ​especially one who has ​spent a lot of ​timestudying: We have the ​best brains in the ​landworking on this ​problem.
the brains [S]
the most ​intelligentperson in a ​group, ​especially the ​person who ​plans what the ​group will do: My little brother's the brains of the ​family.

expend iconexpend iconMore examples

brainverb [T]

uk   /breɪn/  us   /breɪn/ informal
(Definition of brain from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"brain" in American English

See all translations

brainnoun [C]

 us   /breɪn/
the ​organ inside the ​head that ​controlsthought, ​memory, ​feelings, and ​physicalactivity: a brain ​tumor brain ​surgery They ​foundfracturedribs, other ​boneinjuries, and brain ​damage.
infml A brain is also a very ​intelligentperson: We’ve got the ​best brains in the ​countryworking on this ​problem.
(Definition of brain from the Cambridge Academic Content Dictionary © Cambridge University Press)

"brain" in Business English

See all translations

brainnoun

uk   us   /breɪn/ informal
[C, usually plural] a very ​intelligentperson: We've got the best brains in the ​industryworking on the ​cars.
the brains [S]
the ​personresponsible for the ​planning and ​management of an ​activity or ​organization: the brains behind sth He is the brains behind the corporation's ​success.
(Definition of brain from the Cambridge Business English Dictionary © Cambridge University Press)
What is the pronunciation of brain?
Add Cambridge dictionaries to your browser to your website

“brain” in British English

“brain” in Business English

Just who is driving this thing?
Just who is driving this thing?
by ,
May 03, 2016
by Colin McIntosh Do you remember Herbie the Love Bug? Herbie was a 1963 Volkswagen Beetle car in a string of Walt Disney movies. In typical Disney anthropomorphic style, Herbie goes his own way, falls in love, cries, plays jokes, and generally has a mind of his own. While the new driverless cars, like those being

Read More 

Word of the Day

star

a very large ball of burning gas in space that is usually seen from the earth as a point of light in the sky at night

Word of the Day

trigger warning noun
trigger warning noun
May 02, 2016
a warning that a subject may trigger unpleasant emotions or memories This is not, I should stress, an argument that trigger warnings should become commonplace on campus.

Read More