サプライズ

noun, noun or participle which takes 'suru'

surprise; unexpected event; to surprise

A modern katakana word used for a surprise itself, especially a planned or pleasant surprise, and as a する expression meaning to give someone a surprise. In more formal or purely emotional contexts, native words such as 驚き may be preferred.

• 彼かの女じょの誕たん生じょう日びにサプライズを用よう意いした。

  I prepared a surprise for her birthday.