To make a very loud noise with your mouth because you are very scared, excited, or hurt.
Screaming can be very scary or very exciting. It can make people feel like something bad is happening or like something very good is happening.
Examples:
The little girl will scream if she sees a spider.
I scream when I am very happy.
She screams when she is hurt.
The baby screams when it's time for bed.
I will scream if I see a dinosaur!
The monkey screams and jumps around.