The term 'RELATED STUFF' can be summarized by two crossword solutions: WHATNOT (7 letters) and SUCH (4 letters). WHATNOT is a noun that refers to a miscellaneous collection of items, often used to describe an assortment of objects that are not easily categorized. SUCH is an adverb that is used to emphasize the importance of something or to express surprise. Together, these two words can be used to describe a variety of related items or objects.