boom Meaning and Definition

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

3. n. a deep prolonged loud noise

4. n. a sudden happening that brings good fortune (as a sudden opportunity to make money)

5. n. a state of economic prosperity

6. v. grow stronger

7. v. hit hard

8. v. make a deep hollow sound

9. v. make a resonant sound, like artillery

10. v. be the case that thunder is being heard