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| boom [ boom ] |
verb (past and past participle boomed, present participle boom·ing, 3rd person present singular booms) |
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| Definition: |
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1. intransitive verb make loud deep sound: to make a loud deep reverberating sound
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2. transitive verb utter something loudly: to say something in a loud deep voice
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3. intransitive verb economics experience significant increase in trade: to experience a significant expansion of business and investment, either across an economy or in a specific market
  Business is booming.
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4. transitive verb campaign for somebody: to campaign vigorously for somebody
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noun (plural booms) |
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| Definition: |
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1. loud deep sound: a loud deep reverberating sound
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2. zoology deep loud bird or animal noise: a deep loud cry made by some birds and animals. Bitterns and grouse boom.
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3. significant increase in amount: a significant increase in the amount of something such as a population level
a population boom
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4. economics significant increase in business: a significant expansion of business and investment, either across an economy or in a specific market
a boom in sales
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| [15th century. Perhaps < Dutch bommen "to hum, buzz"; an imitation of the sound] |
