an explosion; detonation; a blast or eruption (physical).
工場でガスが爆発し、周辺の建物が壊れた。
Gas exploded at the factory, and nearby buildings were damaged.
火山の爆発で大量の灰が空に舞い上がった。
The volcanic eruption sent large amounts of ash into the sky.
花火は小さな爆発の連続で夜空を彩る。
Fireworks light up the night sky through a series of small explosions.
an outburst of emotion (e.g., anger); a sudden eruption of feeling; figuratively, a sudden surge (e.g., in popularity).
彼はついに怒りが爆発して、部屋を飛び出した。
He finally exploded with anger and stormed out of the room.
観客の拍手が爆発し、会場は歓声に包まれた。
The audience burst into applause, and the venue was filled with cheers.
その歌手は突然人気が爆発し、一躍スターになった。
That singer's popularity suddenly exploded, and they became a star overnight.