Shirabe
あっ と 驚く

あっ

Common interjection (kandoushi)
Español jmdict
1
interjection (kandoushi) oh;ah
English jmdict
1
interjection (kandoushi) ah;oh
expression of surprise, recollection, etc.
あっ、いけない！忘れるところだった！
Oh, no! I almost forgot!
2
interjection (kandoushi) hey!
used to get someone's attention
English jmdict
1
expressions (phrasesGodan verb with 'ku' ending to get a big surprise;to be astonished;to have one's breath taken away;to be taken aback
その真実は彼をあっと驚かせた。
The truth knocked the breath out of him.
Other forms アッと驚く 【あっとおどろく】