The term 'Yuletide Song' refers to a type of Christmas song that is traditionally sung during the holiday season. The crossword solutions for this term are NOEL (4 letters), CAROL (5 letters), CAROL of the Bells (15 letters), and Up on the Housetop (15 letters). NOEL and CAROL are two of the most popular Christmas carols, while CAROL of the Bells and Up on the Housetop are two of the most beloved and recognizable Yuletide songs.