also: ぶうん
adverb taking the 'to' particle, adverb
Represents a continuous low-pitched sound like a motor, fan, or insect wings.
扇風機がブーンと回っている。
The electric fan is whirring.
adverb taking the 'to' particle, adverb
Represents a swift, rushing sound, like a fast-moving object or wind.
車がブーンと通り過ぎた。
A car whooshed past.
The refrigerator is humming with a low buzz.
蚊が耳元でブーンとうるさかった。
A mosquito buzzed annoyingly near my ear.
バイクがブーンと通り過ぎた。
A motorcycle whooshed past.
A bee came buzzing toward me.
ブーン is a generic low hum or buzz, whereas ウィーン specifically suggests the whirring sound of a motor or machine spinning up.
Katakana spelling is typical for onomatopoeia.
Hiragana variant, also common.
Hiragana variant without long vowel mark.
Onomatopoeic word mimicking a continuous low sound or a rushing sound.