Word.ws English Dictionary

Plural of brain

regular plural

The plural of brain is brains.

Forms of brain

Singularbrain /ˈbɹeɪ̯n/
Pluralbrains /bɹeɪnz/
Countablecountable and uncountable

Brains in a sentence

  • 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.1981, William Irwin Thompson, The Time Falling Bodies Take to Light: Mythology, Sexuality and the Origins of Culture, London...
  • She has a lot of brains.
  • Sadly, I got my brains from my mom and my looks from the mailman.From the entry brains
  • Today's youth's brains are sucked void of common sense.From the entry void
  • He's a nice person, but a bit short of brains.From the entry short of

Meaning of brain

  1. noun 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.
  2. noun A part of the brain, especially associated with particular mental functions, abilities, etc.
  3. noun Skull; head.

Full definition of brain

Questions about the plural of brain

What is the plural of brain?
The plural of brain is brains.
Is brain countable?
Brain is a countable and uncountable noun.

Source and license

Adapted from Wiktionary: brain (page history and authors) and the entries of its forms. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws left out forms marked obsolete, archaic, rare or dialectal and added the examples. Wiktionary data of 2026-09-02.

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Cite this page: “Plural of brain.” Word.ws, https://word.ws/plural/brain. Based on Wiktionary, CC BY-SA 4.0.