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Elementary Dictionary
       

boom

 
 
pronunciation:
bum
parts of speech:
verb, noun
part of speech: verb
inflections: booms, booming, boomed
definition: When something booms, it makes a very low and loud noise.
We could hear the fireworks booming even from our house.
synonyms:
roar, thunder
similar words:
bang, blast, crash, echo, explode, rumble
 
part of speech: noun
definition: We call a very low, loud noise a boom.
We screamed when we heard the boom of the thunder, and my sister jumped in bed with my mom.
synonyms:
explosion, thunder
similar words:
bang, report
derivation: boomer (n.)