christmas day
 聖誕節
 Christ·mas 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.
 Christmas box. (a) A box in which presents are deposited at Christmas. (b) A present or small gratuity given to young people and servants at Christmas; a Christmas gift.
 Christmas carol, a carol sung at, or suitable for, Christmas.
 Christmas day. Same as Christmas.
 Christmas eve, the evening before Christmas.
 Christmas fern Bot., an evergreen North American fern (Aspidium acrostichoides), which is much used for decoration in winter.
 Christmas flower, Christmas rose, the black hellebore, a poisonous plant of the buttercup family, which in Southern Europe often produces beautiful roselike flowers midwinter.
 Christmas tree, a small evergreen tree, set up indoors, to be decorated with bonbons, presents, etc., and illuminated on Christmas eve.
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 Christmas Day
      n : a Christian holiday celebrating the birth of Christ; a
          quarter day in England, Wales, and Ireland [syn: Christmas,
           Xmas, Dec 25]