boom

Pronunciation

• enPR: boo͞m
  • (UK) IPA ^(key): /buːm/
  • (US) IPA ^(key): /bum/

  • Audio (AU)

    (file)

Noun

Singular boom

Plural booms

1. A boom is the sound that is made from an explosion.

   The boom of that volcano hurt my ears.

2. A boom can also be any movable pole; in sailing, it is a pole that comes from the bottom of a sail.

Related words

• boom box
• sonic boom

Verb

Plain form boom

Third-person singular booms

Past tense boomed

Past participle boomed

Present participle booming

1. To boom is to make a loud sound.