惊喜 (jīng xǐ): pleasant surprise, delight

On my birthday, I came home from work and opened the door to find all my friends hiding in the living room, giving me a big surprise.

Her boyfriend suddenly took out a ring and proposed; she was so pleasantly surprised that she couldn't speak, and tears instantly welled up.

The teacher announced that the whole class had passed the exam; upon hearing this, the students cheered in delighted surprise.

Opening the delivery box, I was pleasantly surprised to find a handwritten blessing card from a friend inside.