1.Definition: a deep prolonged loud noise

Related Noun(s):roar, thunder

Category: General

2.Definition: a pole carrying an overhead microphone projected over a film or tv set

Category: Objects

3.Definition: a state of economic prosperity

Category: General

4.Definition: a sudden happening that brings good fortune (as a sudden opportunity to make money)

"The demand for testing has created a boom for those unregulated laboratories where boxes of specimen jars are processed like an assembly line"

Related Noun(s):bonanza, bunce, godsend, gravy, windfall

Category: General

5.Definition: any of various more-or-less horizontal spars or poles used to extend the foot of a sail or for handling cargo or in mooring

Category: Objects