from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A Christian feast commemorating the birth of Jesus.
- n. December 25, the day on which this feast is celebrated.
- n. Christmastide.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- proper n. A widely celebrated festival commemorating the birth of Jesus Christ, incorporating various Christian, pre-Christian and secular customs.
- proper n. A personification of Christmas.
- n. Christmas Day, the day it is celebrated, 25 December, an English quarter day.
- n. Christmastide, the Twelve Days of Christmas, the season (traditionally from the 24th of December to the 6th of January) around the holiday.
- n. The period from the Friday following Thanksgiving to Christmas Eve, busy with shopping and preparations for Christmas.
- n. Christmas season, the end of the year period, busy with shopping and preparations for Christmas.
from the GNU version of the Collaborative International Dictionary of English
- n. An annual church festival (December 25) and in some States a legal holiday, in memory of the birth of Christ, often celebrated by a particular church service, and also by special gifts, greetings, and hospitality.
from The Century Dictionary and Cyclopedia
- n. The festival of the Christian church observed annually in memory of the birth of Christ.
- n. Christmas day, the 25th day of December.
- n. [lowercase] The holly, Ilex Aquifolium, from its use for decoration on Christmas day.
- n. A box of presents at Christmas.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. period extending from Dec. 24 to Jan. 6
- n. a Christian holiday celebrating the birth of Christ; a quarter day in England, Wales, and Ireland
Middle English Cristemas, from Old English Crīstes mæsse, Christ's festival : Crīst, Christ; see Christ + mæsse, festival; see Mass.(American Heritage® Dictionary of the English Language, Fourth Edition)
From late Old English Cristesmæsse ("Christ's mass, Christ's festival"); as if Christ + -mas. (Wiktionary)