Definition of behave

• behave in a certain manner; show a certain behavior; conduct or comport oneself; "You should act like an adult"; "Dont behave like a fool"; "What makes her do this way?"; "The dog acts ferocious, but he is really afraid of people"
• behave in a certain manner; "She carried herself well"; "he bore himself with dignity"; "They conducted themselves well during these difficult times"
• behave well or properly; "The children must learn to behave"