We are going to celebrate my husband's birthday at home with some friends, so I'm preparing everything for the party.

celebrate 是动词，意思是"庆祝、庆贺"，指通过特定活动或仪式来纪念某个重要日子或事件。这个词来自拉丁语 celebrare（聚集在一起庆祝），常用于生日、节日等场合的庆祝活动。