noun
- the way a person behaves or acts; conduct; manners
- an organism's responses to stimulation or environment, esp. those responses that can be observed
- an instance of behavior; specif., one of a recurring or characteristic pattern of observable actions or responses
- the way a machine, element, etc. acts or functions
Origin:
< behave by analogy with ME havior, property < OFr aveir < avoir, to have