Boom multiple meanings, dont focus just on sound and explosions.
http:// www. dictionary.com/browse/boom
verb (used without object)
1.
to make a deep, prolonged, resonant sound.
2.
to move with a resounding rush or great impetus.
3.
to progress, grow, or flourish vigorously, as a business or a city:
Her business is booming since she enlarged the store.
verb (used with object)
4.
to give forth with a booming sound (often followed by out):
The clock boomed out nine.
5.
to boost; campaign for vigorously:
His followers are booming George for mayor.
noun
6.
a deep, prolonged, resonant sound.
7.
the resonant cry of a bird or animal.
8.
a buzzing, humming, or droning, as of a bee or beetle.
9.
a rapid increase in price, development, numbers, etc.:
a boom in housing construction.
10.
a period of rapid economic growth, prosperity, high wages and prices, and relatively full employment.
11.
a rise in popularity, as of a political candidate.
adjective
12.
caused by or characteristic of a boom:
boom prices.