A "subcategory" is a term commonly used to describe a subset or division within a broader category. However, there are various synonyms that can be employed to convey the same meaning. One alternative could be "subdivision", referring to a smaller section or group within a larger classification. Another synonym is "subset", which emphasizes the idea of a portion or part within a whole. "Branch" can also be used to denote a smaller category branching off from a larger classification. Similarly, "division" and "section" can be interchangeable terms to describe a subcategory. These synonyms provide flexibility and enhance communication by offering different ways to express the concept of a subset within a broader category.