|1.||[ verb ] make a resonant sound; as of artillery|
: "His deep voice boomed through the hall."
|Related terms:||go blare|
|2.||[ noun ] a deep prolonged loud noise|
|Synonyms:||roar thunder roaring|
|Related terms:||noise roar thunder|
|3.||[ verb ] hit hard|
|Synonyms:||smash blast nail|
"He smashed a 3-run homer"
|Related terms:||hit blast|
|4.||[ noun ] a sudden happening that brings good fortune (as a sudden opportunity to make money)|
|Synonyms:||goldmine manna_from_heaven bunce godsend gold_rush gravy windfall bonanza|
"the demand for testing has created a boom for those unregulated laboratories where boxes of specimen jars are processed like an assembly line"
|5.||[ noun ] (economics) a state of economic prosperity|
|6.||[ noun ] a pole carrying an overhead microphone projected over a film or tv set|
|7.||[ verb ] make a deep hollow sound|
"Her voice booms out the words of the song"
|8.||[ verb ] grow stronger|
|Synonyms:||flourish expand thrive prosper get_ahead|
"The economy was booming"
|Related terms:||grow revive luxuriate|
|9.||[ verb ] be the case that thunder is being heard|
"Whenever it thunders, my dog crawls under the bed."
|Related terms:||thunder storm|
|10.||[ noun ] Last name, frequency rank in the U.S. is 27963|
|11.||[ noun ] (nautical) 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|
|Related terms:||spar sailing_vessel|