Definition

1. Noun:

   • A loud, deep, resonant sound: A prolonged, echoing noise, often associated with thunder, explosions, or large drums.
   • A period of rapid economic growth or prosperity: A sudden, significant increase in commercial activity, wealth, or popularity.
   • A horizontal spar or pole: A long beam used on a ship to extend the bottom of a sail or on land for handling cargo or as part of a crane.

2. Verb:

   • To make a loud, deep, resonant sound: To produce a deep, echoing noise.
   • To experience rapid growth or prosperity: To increase suddenly in size, activity, popularity, or value.
   • To speak or utter in a loud, deep voice: To say something with a powerful, resonant vocal tone.

Examples of Usage

• Noun (Sound):
  • The boom of the cannon echoed across the valley.
  • We heard a distant boom of thunder.
• Noun (Economic Growth):
  • The city experienced an economic boom after gold was discovered.
  • The post-war baby boom increased demand for housing.
• Noun (Spar/Pole):
  • The sailor adjusted the boom to catch more wind.
• Verb (Make Sound):
  • The drums boomed in the parade.
  • His voice boomed from the stage.
• Verb (Experience Growth):
  • The tech industry continues to boom.
  • Business is booming this quarter.

Advanced Usage

• "Baby boom": A period marked by a significant increase in birth rates.
  • The baby boom generation is now reaching retirement age.
• "Boom and bust": A cycle of economic expansion followed by a sharp contraction.
  • The commodity market is known for its boom and bust cycles.
• "Boom box": A large, portable radio and cassette or CD player capable of playing loud music.
  • He carried a boom box on his shoulder in the 1980s.

Variants and Related Words

• Boomy (adj): Describing a sound that is loud, deep, and resonant, often with excessive low-frequency reverberation.
  • The audio in the hall was a bit boomy.
• Booming (adj): Experiencing or characterized by rapid growth or prosperity; also, making a loud, deep sound.
  • He has a booming voice.
  • The town has a booming tourism industry.

Synonyms

• Noun (Sound): Roar, thunder, blast, reverberation.
• Noun (Growth): Upsurge, expansion, surge, upturn.
• Verb (Sound): Roar, thunder, resound, blast.
• Verb (Growth): Thrive, flourish, prosper, surge.

Related Phrasal Verbs

• Boom out: To emit a loud, deep sound; to say something loudly and clearly.
  • The announcement boomed out over the loudspeakers.

Related Idioms

• Lower the boom (on someone): To suddenly and severely punish someone or put a stop to their activities.
  • The manager finally lowered the boom on the employee's constant tardiness.

Noun

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 sudden happening that brings good fortune (as a sudden opportunity to make money)
   • the demand for testing has created a boom for those unregulated laboratories where boxes of specimen jars are processed like an assembly line
4. a state of economic prosperity
5. a deep prolonged loud noise

Verb

1. grow vigorously
   • The deer population in this town is thriving
   • business is booming
2. make a deep hollow sound
   • Her voice booms out the words of the song
3. be the case that thunder is being heard
   • Whenever it thunders, my dog crawls under the bed
4. hit hard
   • He smashed a 3-run homer
5. make a resonant sound, like artillery
   • His deep voice boomed through the hall