Word: boom
Word origin: late Middle English (as a verb): ultimately imitative; perhaps from Dutch bommen ‘to hum, buzz’.
Phonetic:
buːm
Listen:
a loud, deep, resonant sound. Example: the deep boom of the bass drum
make a loud, deep, resonant sound. Example: thunder boomed in the sky
You can find a list of possible crossword clues for BOOM below.