高兴是一个名词，它的英文意思是 "happiness" 或 "joy". 此词源于拉丁语 "gaudium"，意思是"喜悦"。例如：

这个消息让我感到高兴。

The news made me happy.

他们在庆祝他们的结婚，高兴极了。

They were celebrating their marriage with great joy.