a deep prolonged loud noise
a state of economic prosperity
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
[ Syn: bonanza , gold rush , gravy , godsend , manna from heaven , windfall , bunce ]
a pole carrying an overhead microphone projected over a film or tv set
[ Syn: microphone boom ]
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
boom (n.)
make a resonant sound, like artillery; His deep voice boomed through the hall
[ Syn: din ]
hit hard; He smashed a 3-run homer
be the case that thunder is being heard; Whenever it thunders, my dog crawls under the bed
[ Syn: thunder ]
make a deep hollow sound; Her voice booms out the words of the song
[ Syn: boom out ]
grow vigorously; The deer population in this town is thriving; business is booming