Definition of: roar

(rôr, rōr) v.i.
1. To utter a deep, prolonged cry, as of rage or distress.
2. To make a loud noise or din, as the sea or a cannon.
3. To laugh loudly.
4. To move, proceed, or act noisily.
5. To make a labored, rasping sound in breathing, as a horse.
—v.t.
6. To utter or express by roaring: The crowd roared its disapproval.
—noun
1. A full, deep, resonant cry, as of a beast; a similar cry of a human being, as in pain, grief, or anger.
2. Any loud, prolonged sound, as of wind or waves, or a confused mingling of sounds suggesting the cry of wild beasts. See synonyms under NOISE. [OE rārian] Synonyms (verb): bawl, bellow, boom, bray, shout, shriek, yell. See CALL.