shriek

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A shrill, often frantic cry.
• noun A sound suggestive of such a cry.
• intransitive verb To utter a shriek.
• intransitive verb To make a sound similar to a shriek.
• intransitive verb To utter with a shriek.

from The Century Dictionary.

• To utter a sharp, shrill cry; cry out more or less convulsively, at a pitch above that of a scream, as in great and sudden fright, in horror, or in extreme pain: used sometimes, by hyperbole, of laughter.
• To utter with a shriek or a shrill wild cry.
• noun A sharp, shrill outcry: as, the shriek of a whistle; shrieks of laughter. See shriek, v.
• noun Synonyms Screech etc. See screem.

from the GNU version of the Collaborative International Dictionary of English.

• intransitive verb To utter a loud, sharp, shrill sound or cry, as do some birds and beasts; to scream, as in a sudden fright, in horror or anguish.
• transitive verb To utter sharply and shrilly; to utter in or with a shriek or shrieks.
• noun A sharp, shrill outcry or scream; a shrill wild cry such as is caused by sudden or extreme terror, pain, or the like.
• noun (Zoöl.) The swift; -- so called from its cry.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A sharp, shrill outcry or scream; a shrill wild cry such as is caused by sudden or extreme terror, pain, or the like.
• verb To utter a loud, sharp, shrill sound or cry, as do some birds and beasts; to scream, as in a sudden fright, in horror or anguish.
• verb To utter sharply and shrilly; to utter in or with a shriek or shrieks.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun sharp piercing cry
• noun a high-pitched noise resembling a human cry
• verb utter a shrill cry