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

exercise

physical activity that you do to make your body strong and healthy

Word of the Day

Byronic, Orwellian and Darwinian: adjectives from names.

by Liz Walter,
April 15, 2015
Becoming an adjective is a strange kind of memorial, but it is often a sign of a person having had real influence on the world. Science is full of examples, from Hippocrates, the Greek medic born around 460 BC, who gave his name to the Hippocratic Oath still used by doctors today,

Read More 

bio-inspiration noun

April 13, 2015
the adoption of patterns and structures found in nature for the purposes of engineering, manufacturing, science, etc. The MIT researchers actually aren’t the only robotics team to turn to cheetahs for bio-inspiration.

Read More