This is the 10343rd most frequent Japanese word.
驚
"驚" means "surprise" or "astonishment."
驚 is used to describe the state of being surprised in someone's expression.
彼の驚いた表情が忘れられない。
I cannot forget his surprised expression.
驚 is used as a noun to represent the feeling of astonishment.
ニュースの内容には驚きを隠せなかった。
I couldn't hide my astonishment at the news.
驚 is embedded in the verb 驚いた, expressing the action of being surprised.