A deep hollow or roaring sound.
"The thunder rolled across the valley, a booming crash that shook the windows of every house."
present participle of boom
"The booming engine shook the entire floor as it started up."
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"
(used of the voice or sound) deep and resonant
"The preacher's booming voice filled the entire cathedral without a microphone."
Experiencing a period of prosperity, or rapid economic growth.
"After years of struggling in rural areas, the town went booming when the new tech factory opened its doors."