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Definition of brains

brains

/breɪnz/
brains

Adverb:brainily
•
Plural:brains
•
Adjective:brainy
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brains Lexical Profile

brains Game Scores & Validity

• noun

1

Intellectual capacity, high mental ability, or common sense (used in the plural form).

Example

"It takes both hard work and brains to solve complex engineering problems."


2

The plural form of brain; the soft nervous tissue organs inside the skulls of vertebrates that function as the coordinating centers of sensation and intellectual activity.

Example

"Neuroscientists compare the brains of different mammal species to understand how memory evolved."


3

The chief organizer, planner, or intellectual leader of a group or enterprise (usually preceded by 'the').

Example

"Her younger sister was actually the brains behind the successful startup."


4

The physical substance of the brain of an animal, especially when prepared as food.

Example

"Traditional French cuisine includes several classic recipes for preparing calf's brains."

Synonyms
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Antonyms
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Word Nuance & Usage

When referring to intellectual capacity ('she has the brains for the job') or a mastermind ('he is the brains behind the operation'), the plural form 'brains' is used as an uncountable or singular-construed noun.

• Rhymes for brains

Word Origin & Etymology

From Old English 'brægen', of West Germanic origin, related to Dutch 'brein' and Middle Low German 'bregen'.

Cite this Entry


Wordmom. (2026). Definition of Brains. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/brains
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