Behavior (noun)

1. The actions or reactions of a person or animal in response to external or internal stimuli.
2. The manner in which a person conducts themselves or acts.
3. The way in which something acts or operates.
4. The response of a person, animal, or thing to a particular situation or stimulus.
5. The manner in which a person or animal interacts with others in society or in their environment.

Origin:

Derived from the old french word 'behavior', meaning 'conduct'.

Examples:

1. His behavior was inappropriate for the occasion.
2. The behavior of the cat was strange, it seemed scared.
3. The behavior of the machine was unpredictable.
4. Her behavior was unacceptable and she was fired.
5. The child's behavior was a reflection of his upbringing.