brain — English Dictionary

brain
Pronunciations (5)
  • /ˈbɹeɪ̯n/
    Pronunciation notes
    • General-American
    • Received-Pronunciation
  • /ˈbɹæ̝ɪ̯n/
    Pronunciation notes
    • Australia
    • New-Zealand
  • /ˈbɾen/
    Pronunciation notes
    • Scotland
  • /ˈbɾein/
    Pronunciation notes
    • Wales
  • bɹeɪn

Noun

  1. The control center of the central nervous system of an animal located in the skull, consisting of the cerebrum, cerebellum, and brainstem, which is responsible for perception, cognition, attention, memory, emotion, and action.

    Usage
    • Countable
    • Uncountable
    Examples
    More examples (1)

    The Ueynes are ſpred foorth throughout the whole bodie, howbeit from one welhead, that is to ſay from the Liuer: ſo be the Sinews, howbeit from the Brayne; So likewiſe are the Heartſtrings, howbeit from the Heart.

    The brain of a calf, sheep, and pig, young and served fresh, is reputedly erotic in its effects.

    More examples (1)

    Irregular bedtimes may disrupt healthy brain development in young children, according to a study of intelligence and sleeping habits. ¶ Going to bed at a different time each night affected girls more than boys, but both fared worse on mental tasks than children who had a set bedtime, researchers found.

  2. The control center of the central nervous system of an animal located in the skull, consisting of the cerebrum, cerebellum, and brainstem, which is responsible for perception, cognition, attention, memory, emotion, and action. A part of the brain, especially associated with particular mental functions, abilities, etc.

    Usage
    • Countable
    • Uncountable
    Examples

    The left brain, or that which supplies and animates the right side of the body, is the most active brain, as a general rule.

    More examples (1)

    What is expressed in the lotus, the plumed serpent, or the staff of Osiris is the yogi's knowledge of the three brains of man. The first brain is the reptilian brain of the spinal cord, the brain of instinctive reflexes, the brain of the subconscious.

  3. The control center of the central nervous system of an animal located in the skull, consisting of the cerebrum, cerebellum, and brainstem, which is responsible for perception, cognition, attention, memory, emotion, and action. skull; head

    Usage
    • Countable
    • Obsolete
    • Uncountable
    Examples

    caused the young Princess, the King's only Daughter, to be taken and thrust into a large velvet Sack, and her Brains to be knockt out with great Bars

  4. Mind.

    Usage
    • Countable
    • Informal
    • Uncountable
    Examples

    I have too much on my brain today.

    And I should tell him all my pain, / ⁠And how my life had droop’d of late, / ⁠And he should sorrow o’er my state / And marvel what possess’d my brain; […]

  5. Intellect.

    Usage
    • Countable
    • in-plural
    • Uncountable
    Examples
    More examples (1)

    "We provided a lot of brains and a lot of heart to the response when it was needed," says Sandra Sanchez, director of AFSC's Immigrants' Voice Program in Des Moines.

    She has a lot of brains.

  6. An intelligent person.

    Usage
    • Countable
    • Informal
    • Uncountable
    Examples

    She was a total brain.

    Peebee: The brains and I are comparing Remnant notes and filling in the blanks.

  7. An intelligent person. A person who provides the intelligence required for something.

    Usage
    • Countable
    • Informal
    • plural
    • Plural only
    • Uncountable
    Examples

    He is the brains behind the scheme.

  8. An intelligent person. An intellectual or mental capacity.

    Usage
    • Countable
    • Informal
    • singular
    • Uncountable
    Examples

    Gerald always acts like he doesn't have a brain.

  9. By analogy with a human brain, the part of a machine or computer that performs calculations.

    Usage
    • Countable
    • Uncountable
    Examples

    The computer's brain is capable of millions of calculations a second.

  10. Oral sex.

    Usage
    • Slang
    • Uncountable
    • Vulgar
    Examples

    Have you ever popped champagne on a plane, while gettin' some brain?

    You said I got brain from your dame in the range / In the passing lane / But you really ain't got no proof

    More examples (2)

    Got your nigga going / Going insane and so do I when he give me brain

    She giving brain / She eat the dick up like some M&Ms

  11. A loose compartment of a backpack that straps on over the top opening.

    Usage
    • Countable
    • Uncountable

Verb

  1. To dash out the brains of; to kill by smashing the skull.

    Usage
    • Transitive
  2. To strike (someone) on the head.

    Usage
    • Transitive
    Examples
    More examples (1)

    Lambdon would require medical attention for a fractured skull. It seemed that Fen had passed his wife a couple of telling pictures, whereupon the drab Mrs. Lambdon had brained her husband with a table lamp.

  3. To destroy; to put an end to.

    Usage
    • Figurative
    • Transitive
    Examples

    There thou maiſt braine him,

    It was the ſwift celeritie of his death / […] That brain'd my purpoſe:

    More examples (1)

    He was going on with some wild reminiscences about his tomahawk-pipe, which, it seemed, had in its two uses both brained his foes and soothed his soul, when we were directly attracted to the sleeping rigger.

  4. To conceive in the mind; to understand.

    Usage
    • Obsolete
    • Transitive
    Examples

    'Tis still a dream, or else such stuff as madmen / Tongue, and brain not.

  5. To think effectively.

    Usage
    • Humorous
    • Intransitive
    • nonstandard
    Examples

    My brain isn't braining right now.

Noun

  1. that part of the central nervous system that includes all the higher nervous centers; enclosed within the skull; continuous with the spinal cord

    Synonyms
    Broader terms
  2. mental ability

    Broader terms
    Examples

    he's got plenty of brains but no common sense

  3. that which is responsible for one's thoughts, feelings, and conscious brain functions; the seat of the faculty of reason

    Examples

    his mind wandered

    I couldn't get his words out of my head

  4. someone who has exceptional intellectual ability and originality

    Examples

    Mozart was a child genius

    he's smart but he's no Einstein

  5. the brain of certain animals used as meat

    Broader terms

Verb

  1. hit on the head

    Broader terms
  2. kill by smashing someone's skull

    Broader terms
Word forms
brainsbraynebrainsbrainingbrainedbrained

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