n. & v.
n. 1 a loud deep hoarse sound, as made by a lion, a person in pain or rage or excitement, thunder, a loud engine, etc. 2 a loud laugh.
v. 1 intr. a utter or make a roar. b utter loud laughter. c (of a horse) make a loud noise in breathing as a symptom of disease. 2 intr. travel in a vehicle at high speed, esp. with the engine roaring. 3 tr. (often foll. by out) say, sing, or utter (words, an oath, etc.) in a loud tone. roarer n.
[ OE rarian, of imit. orig. ]