Meaning of roaring

(adj) 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"

(adv) extremely; "roaring drunk"

(noun) a deep prolonged loud noise

a very loud utterance (like the sound of an animal); "his bellow filled the hallway"