- The behavior of a system is what it does (contrast structure). It is the processes executed or supported by a system.
- manner of acting or controlling yourself
- the action or reaction of something (as a machine or substance) under specified circumstances; "the behavior of small particles can be studied in experiments"
- demeanor: (behavioral attributes) the way a person behaves toward other people
- (psychology) the aggregate of the responses or reactions or movements made by an organism in any situation