• noun:   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
• noun:   a pole carrying an overhead microphone projected over a film or tv set
• noun:   a deep prolonged loud noise
• noun:   a sudden happening that brings good fortune (as a sudden opportunity to make money)

  Example: "The demand for testing has created a boom for those unregulated laboratories where boxes of specimen jars are processed lik an assembly line"

• noun:   a state of economic prosperity
• verb:   make a deep hollow sound

  Example: "Her voice booms out the words of the song"

• verb:   make a resonant sound, like artillery

  Example: "His deep voice boomed through the hall"

• verb:   grow stronger

  Example: "The economy was booming"

• verb:   be the case that thunder is being heard
• verb:   hit hard
• name:  A surname (very rare: popularity rank in the U.S.: #27963)

Related words...