some vocabulary in french :
Merry Christmas = Joyeux NoŽl
Happy new year = bonne annťe
Santa Claus or Father Christmas = PŤre NoŽl
Xmas tree = Sapin ( de NoŽl )
Christmas dinner = rťveillon (in the evening on december 24th)
gifts = cadeaux
wishes = souhaits
Xmas carols = chants de NoŽl
White Xmas = NoŽl blanc
....ask if you want some more