1 [C,U] the period of time before and after 25 December 圣诞节节期: Where are you spending Christmas this year? 今年圣诞节你会在哪里过？

2 Christmas Day [C] a public holiday on 25 December. It is the day on which Christians celebrate the birth of Christ each year. 圣诞节（即12月25日） ☞Christmas is sometimes written as Xmas in informal English. 在英语里，Christmas在非正式场合有时写作Xmas。