boom 1 (bm)
v. boomed, boom·ing, booms
v.intr.
1. To make a deep, resonant sound.
2. To grow, develop, or progress rapidly; flourish: Business is booming.
v.tr.
1. To utter or give forth with a deep, resonant sound: a field commander booming out orders.
2. To cause to grow or flourish; boost.
n.
1. A deep resonant sound, as of an explosion.
2. A time of economic prosperity.
3. A sudden increase, as in popularity.
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[Middle English bomben, imitative of a loud noise