a very loud utterance (like the sound of an animal)
His bellow filled the hallway.
source: WordNet 3.0
A loud, deep, prolonged sound, as of a large beast, or of a person in distress, anger, mirth, etc., or of a noisy congregation.
source: Webster 1913
adverb
extremely
Roaring drunk.
source: WordNet 3.0
adjective satellite
very lively and profitable
Flourishing businesses. A palmy time for stockbrokers. A prosperous new business. Doing a roaring trade. A thriving tourist center. Did a thriving business in orchids.
