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BEHAVIOUR definition: 1. the way that someone behaves: 2. the way that a person, an animal, a substance, etc. behaves in…. Learn more.

Behaviour can be regarded as any action of an organism that changes its relationship to its environment. Behavior provides outputs from the organism to the environment.

5 days ago · The meaning of BEHAVIOR is the way in which someone conducts oneself or behaves; also : an instance of such behavior. How to use behavior in a sentence.

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Mar 7, 2026 · Behavior is more than just actions—learn what counts as behavior, how your brain drives it, and what shapes the way you act.

Behaviour is the British spelling of the same word. It has all the same meanings as behavior, and British writers use it in all the same contexts that American writers use behavior.

Mar 14, 2026 · Behaviour is any action or response an organism produces in reaction to its environment, internal state, or both. It ranges from a simple reflex like blinking to complex social actions like …

Your behaviour is the way you act in various situations. Note that this word ends with "our," which is the British spelling, while the American English spelling is behavior.

Definition of behaviour noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.