what is the meaning of xmas tree

The term "Xmas" is a shortened form of "Christmas," with the "X" representing the Greek letter "chi," which is the first letter of "Christ" in Greek. So, Xmas is essentially a shortened way of saying "Christmas." The word "Christmas" itself comes from the Old English "Cristes Maesse," which means "Christ's Mass." The word "tree" in "Xmas tree" is a reference to the tradition of decorating a tree during the Christmas season.