庆祝用英语说是 celebrate.
这个词来源于拉丁语的 "celebrare"，意思是 "公开展示，庆祝"。
例句:
We're going to celebrate our wedding anniversary next week. (我们下周要庆祝我们的结婚纪念日。)
The company celebrated its 50th anniversary with a big party. (公司庆祝成立50周年，举办了一个大派对。)
Let's celebrate our success with a glass of champagne. (让我们用香槟庆祝我们的成功吧。)