The term 'NOEL TREE' is a combination of two words, 'NOEL' and 'Tree'. NOEL is an old French word meaning Christmas, and Tree is a type of plant. Together, the term 'NOEL TREE' refers to a Christmas tree, which is a decorated evergreen tree that is traditionally used to celebrate the holiday season. The crossword solution for this term is FIR, which is a type of evergreen tree that is commonly used as a Christmas tree.