The term 'Decoration Party' can be broken down into two crossword solutions: Santa (5 letters) and CONE (4 letters). Santa is a popular figure in many cultures, often associated with Christmas and the winter holiday season. He is typically depicted as a jolly old man with a white beard and red clothing. CONE is a three-dimensional geometric shape with a circular base and a pointed top. It is commonly used to make decorations for parties, such as ice cream cones or party hats.