roaring

nouns

a deep prolonged loud noise
boom, roar, roaring, thunder
is derived from
roar
a very loud utterance (like the sound of an animal)
"his bellow filled the hallway"
bellow, bellowing, holla, holler, hollering, hollo, holloa, roar, roaring, yowl
is derived from
roar
is derived from
roar
is derived from
roar

adjectives

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"
booming, flourishing, palmy, prospering, prosperous, roaring, thriving

adverbs

extremely
"roaring drunk"
roaring