scream

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

• intransitive verb To utter a long loud piercing cry, as from pain or fear.
• intransitive verb To make a loud piercing sound.
• intransitive verb To speak or write in an excited or fearful manner.
• intransitive verb To have or produce a startling effect.
• intransitive verb To utter or say in a screaming voice or in an excited or fearful manner.
• noun A long, loud, piercing cry or sound.
• noun Informal One that is hilariously or ridiculously funny.

from The Century Dictionary.

• To cry out with shrill voice; give vent or utterance to a sharp or piercing outcry; utter shrill cries, as in fright or extreme pain, delight, etc.
• To give out a shrill sound: as, the railway whistle screamed.
• noun A sharp, piercing sound or cry, as one uttered in fright, pain, etc.
• noun A sharp, harsh sound.
• noun Synonyms Scream, Shriek, Screech. A shriek is sharper, more sudden, and, when due to fear or pain, indicative of more terror or distress than a scream. Screech emphasizes the disagreeableness of the sharpness or shrillness, and its lack of dignity in a person. It is more distinctly figurative to speak of the shriek of a locomotive than to speak of its scream or screech.

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

• noun A sharp, shrill cry, uttered suddenly, as in terror or in pain; a shriek; a screech.
• intransitive verb To cry out with a shrill voice; to utter a sudden, sharp outcry, or shrill, loud cry, as in fright or extreme pain; to shriek; to screech.

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

• noun A loud, emphatic, exclamation of extreme emotion, usually horror, fear, excitement et cetera. Can be the exclamation of a word, but is usually a sustained, high-pitched vowel sound, particularly /æ/ or /i/, in any case, the loudest and most emphatic sound a human can make tends to be a scream. The term is not generally applied to sounds made by non-humans.
• noun informal An entertainingly outrageous person.
• noun music A form of singing associated with the metal and screamo styles of music. It is a loud, rough, distorted version of the voice; rather than the normal voice of the singer.
• noun informal Used as an intensifier
• verb To make the sound of a scream.
• verb To move quickly; to race.

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

• noun a high-pitched noise resembling a human cry
• noun a joke that seems extremely funny
• verb utter or declare in a very loud voice
• verb make a loud, piercing sound
• verb utter a sudden loud cry
• noun sharp piercing cry