Pronunciation: (bi-hāv'), [key]
—v., -haved, -hav•ing.
1. to act in a particular way; conduct or comport oneself or itself: The ship behaves well.
2. to act properly: Did the child behave?
3. to act or react under given circumstances: This plastic behaves strangely under extreme heat or cold.
to conduct or comport (oneself) in a proper manner: Sit quietly and behave yourself.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.