English dictionary definition of:



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


  • grow vigorously
  • hit hard
  • make a deep hollow sound
  • make a resonant sound, like artillery
  • be the case that thunder is being heard


blast bonanza bunce din expand flourish godsend gravy nail roar roaring smash thrive thunder windfall

Spellzone course content

View spelling list The long /oo/ sound and learn about the word boom in the Spellzone English spelling course, Unit 13. Spelling choices for /oo/ sound: oo, ou.

Scrabble score for boom

Scrabble score = 8

generated at 09:28:09 on 19-11-19

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Users word lists

The long /oo/ sound


5th Year History
Long /oo/ sound
Group 2b list 21


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