boom

A pole carrying an overhead microphone projected over a film or tv set.

A state of economic prosperity.

A deep prolonged loud noise.

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”

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.

Make a resonant sound, like artillery.

“His deep voice boomed through the hall”

Hit hard.

Grow vigorously.

“business is booming”

Be the case that thunder is being heard.

Make a deep hollow sound.

“Her voice booms out the words of the song”