Main entry: boom
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
Main entry: boom, microphone boom
Definition: a pole carrying an overhead microphone projected over a film or tv set
Main entry: thunder, boom, roar, roaring
Definition: a deep prolonged loud noise
Main entry: windfall, manna from heaven, godsend, gold rush, gravy, bonanza, boom, bunce
Definition: a sudden happening that brings good fortune (as a sudden opportunity to make money)
Usage: the demand for testing has created a boom for those unregulated laboratories where boxes of specimen jars are processed like an assembly line
Main entry: boom
Definition: a state of economic prosperity
Main entry: boom, flourish, expand, thrive
Definition: grow vigorously
Usage: The deer population in this town is thriving; business is booming
Main entry: blast, boom, smash, nail
Definition: hit hard
Usage: He smashed a 3-run homer
Definition: make a deep hollow sound
Usage: Her voice booms out the words of the song
Definition: make a resonant sound, like artillery
Usage: His deep voice boomed through the hall
Definition: be the case that thunder is being heard
Usage: Whenever it thunders, my dog crawls under the bed