Read the dictionary definition of boom. All definitions for this word.
1. 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
2. a pole carrying an overhead microphone projected over a film or tv set
3. a deep prolonged loud noise
4. a sudden happening that brings good fortune (as a sudden opportunity to make money)
1. the demand for testing has created a boom for those unregulated laboratories where boxes of specimen jars are processed like an assembly line
5. a state of economic prosperity
6. grow vigorously
1. The deer population in this town is thriving
2. business is booming
7. hit hard
1. He smashed a 3-run homer
8. make a deep hollow sound
1. Her voice booms out the words of the song
9. make a resonant sound, like artillery
1. His deep voice boomed through the hall
10. be the case that thunder is being heard
1. Whenever it thunders, my dog crawls under the bed