An onomatopoeic adverb indicating a quick, sharp movement — similar to 'swiftly' or 'in a flash'.
彼はシュッと立ち上がって挨拶した。
He stood up swiftly and greeted us.
コートをシュッと羽織って出かけた。
He threw on his coat in a flash and left.
ナイフが空をシュッと切った。
The knife whooshed through the air.
Used to express a swishing or whooshing sound or sensation when something moves swiftly through the air.
風が耳元をシュッと通り抜けた。
A gust of wind whooshed past my ear.
髪が顔の前をシュッと流れた。
Her hair swept swiftly across her face.