Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “brain”

See all translations

brain

noun uk   /breɪn/ us  
A2 [C] the organ inside the head that controls thought, memory, feelings, and activity: Doctors tried desperately to reduce the swelling in her brain. The accident left him with permanent brain damage. His wife died 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 - use your brain! The poor child inherited 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 intelligent person, especially one who has spent a lot of time studying: We have the best brains in the land working on this problem.the brains [S] the most intelligent person in a group, especially the person who plans what the group will do: My little brother's the brains of the family.
More examples

brain

verb [T] uk   /breɪn/ informal us  
to hit someone on the head: I'll brain you if you don't keep quiet.
Translations of “brain”
in Korean 뇌…
in Arabic مُخّ, دِماغ…
in French (au/du) cerveau, intelligence, cerveau…
in Turkish beyin, son derece zeki insan…
in Italian cervello…
in Chinese (Traditional) 腦,大腦, 頭腦, 智力…
in Russian мозг, голова, мозги…
in Polish mózg…
in Spanish cerebro, cabeza, inteligencia…
in Portuguese cérebro…
in German das Gehirn, ‘das Köpfchen‘, der Kopf…
in Catalan cervell…
in Japanese 脳…
in Chinese (Simplified) 脑,大脑, 头脑, 智力…
(Definition of brain from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of brain?
Add Cambridge dictionaries to your browser to your website

Definitions of “brain” in other dictionaries

Word of the Day

luck out

to be very lucky

Word of the Day

Think long and hard; the language of decisions

by Liz Walter,
January 28, 2015
One of the best ways (perhaps the best way) to improve your English is to learn how words go together in phrases, idioms, or other patterns such as verb/noun or adjective/noun pairs (often called ‘collocations’). This blog looks at some useful phrases and collocations connected with the subject of decisions, something we

Read More 

micro pig noun

January 26, 2015
an extremely small pig, bred to be a pet Micro pigs have become popular pets recently, with famous owners including Victoria Beckham, Paris Hilton and Olympic diver, Tom Daley.

Read More