Aug 9, 2013 · In a plural sense you can say "holiday season," referring to the Christmas holidays. But "holiday" as a noun has a singular sense (of a single day). I might add that the origin of this word is "holy+day" (where the "y" becomes an "i"), referring to religious holidays (public or bank holidays are a fairly new invention, compared to religious ...
Christmas is an annual festival commemorating the birth of Jesus Christ, observed primarily on December 25 as a religious and cultural celebration among billions of people around the world. A feast central to the liturgical year in Christianity, it follows the season of Advent (which begins four Sundays before) or the Nativity Fast, and initiates the season of Christmastide, which historically in ... Wikipedia
