The Oxford Thesaurus An A-Z Dictionary of Synonyms - boomv.

1) sound, resound, resonate, blast, rumble, thunder, roar, bang, explode: We heard the cannons booming in the distance. 2) prosper, thrive, flourish, progress, grow, increase, burgeon or bourgeon: Business is booming in every sector. --n. 3) blast, rumble, explosion: There was a resounding boom and the car went up in flames. 4) prosperity, profitability; growth, increase, burgeoning or bourgeoning: In this business it is either boom or bust.