Xmas
My daughter says she wants a mobile phone for Christmas.
It's nice to be with family and friends at Christmas.
There is so much to do in the weeks before Christmas.
Is there going to be a Christmas party at work this year?
There are several extra services and events at church during Christmas week.

SMART Vocabulary: related words and phrases

Religious festivals
advent
All Saints' Day
All Souls' Day
ascension
Ascension Day
Divali
Diwali
Easter
Easter Day
Easter Sunday
Hejira
Hijrah
holy day
Holy Week
Purim
Ramadan
Rosh Hashanah
saint's day
Shrove Tuesday
the holiday season

Christmas | American Dictionary

Christmas
noun[ C/U ]
us/ˈkrɪs·məs/
December 25th, a day celebrated each year to honor the birth of Jesus, or the period of time just before and after December 25th:
[ U ]People usually visit their families at Christmas.
[ C ]I hope you have a very Merry Christmas!