Definition of behave
- getting children to behave themselves
- He behaves like a child.
- testing how various metals behave under heat and pressure
- Please behave.
If you can't behave in the store we'll have to leave.
If you can't behave yourself in the store we'll have to leave.
I wish those children would behave themselves.
He behaves like a child!
The experiment tested how various metals behave under heat and pressure.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'behave.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
: to act in an acceptable way : to act properly
: to act in a particular way
of a thing : to function, react, or move in a particular way
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