A child throwing a tantrum is an example of bad behavior.
The actions of chimps studied by scientists are an example of behaviors.
He was on his behavior when her family visited.
The faulty behavior of a computer program; the behavior of dying stars.
Origin of behavior
- Middle English behavour from behaven to behave (on the model of havour behavior) (from Old French avoir) (from avoir to have) behave
From American Heritage Dictionary of the English Language, 5th Edition