Definitions of shout:

• noun:   a loud utterance; often in protest or opposition
• verb:   utter in a loud voice; talk in a loud voice (usually denoting characteristic manner of speaking)

  Example: "My grandmother is hard of hearing--you'll have to shout"

• verb:   utter a sudden loud cry
• verb:   use foul or abusive language towards

  Example: "The angry mother shouted at the teacher"

• verb:   utter aloud; often with surprise, horror, or joy

  Example: "`I'm here,' the mother shouted when she saw her child looking lost"