adverb
burst out laughing; roar with laughter; erupt in applause
Describes a sudden, collective outburst of laughter, applause, or cheering from a group. Often used with verbs like 笑う, 沸く, or 拍手する.
会場はどっと笑いに包まれた。
The venue erupted in laughter.
彼の冗談に
The audience roared at his joke.
adverb
flood in; pour in; surge in
Used when people, things, or orders come rushing in all at once. Common with verbs like 押し寄せる, 詰めかける, or 入る.
開店と同時に客がどっと押し寄せた。
Customers flooded in as soon as the store opened.
新製品の注文がどっと入った。
Orders for the new product poured in.
adverb
Emphasizes an abrupt change or occurrence, often with a nuance of intensity or volume. Can overlap with the 'flooding in' sense but focuses more on the suddenness itself.
疲れがどっと出た。
Fatigue suddenly hit me.
どっと汗が吹き出した。
Sweat suddenly poured out.