boomとは　意味・定義・例文

Noun 名詞

1. a sudden increase in the number of something that people are buying etc.

ブーム, 流行り, 急成長, 急激な上昇

What is the boom now?

boom²

Noun 名詞

1. a deep, loud, hollow sound

とどろき, うなり

the boom of the guns

Verb 動詞

1. make a deep, loud, hollow sound

とどろく

We heard the guns booming in the distance.