boom

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

a state of economic prosperity

make a resonant sound, like artillery

“His deep voice boomed through the hall”

hit hard

a deep prolonged loud noise

grow vigorously

“business is booming”

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”

be the case that thunder is being heard

make a deep hollow sound

“Her voice booms out the words of the song”

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