frightener

n.令人惊恐的人或事；恐吓他人的犯罪团伙成员

Keep still, or you'll frighten the rabbit away. 别动，不然你会把兔子吓跑的。

Sorry, I didn't mean to frighten you. 对不起，我不是故意吓唬你的。

James loves sneaking up on his sister to frighten her. 詹姆斯喜欢溜到妹妹身後吓她一大跳。

James love sneaking up on his sister to frighten her. 詹姆斯喜欢溜到妹妹身后吓她一大跳。

The thing that we see makes us frighten. 我们所看到的事情使我们大吃一惊。

To frighten with threats or a show of force. 用威胁或显示武力的手段吓唬