Definitions of scream:

• noun:   sharp piercing cry

  Example: "Her screaming attracted the neighbors"

• noun:   a joke that seems extremely funny
• noun:   a high-pitched noise resembling a human cry

  Example: "He heard the scream of the brakes"

• verb:   make a loud, piercing sound

  Example: "Fighter planes are screaming through the skies"

• verb:   utter or declare in a very loud voice
• verb:   utter a sudden loud cry