brain

brain · noun

imported

Definitions

noun

  1. 1.

    The organ in the head that controls functions, movements, and thoughts.

  2. 2.

    (informal) To hit someone hard on the head.

  3. 3.

    Intellectual capacity; intelligence.

  4. 4.

    (informal) A very intelligent person.

Forms

plural: brains

Phrases & expressions

  • •
    brain drain — emigration of highly trained people
  • •
    brainstorm — a spontaneous discussion or sudden clever idea
  • •
    pick someones brain — to ask someone for information

Related words

See also: intelligence, mind
Synonyms: intellect, mind

Etymology

From Old English braegen, from Proto-Germanic bragnan.