The term 'PART OF AN ORG' can be represented by three different solutions in a crossword puzzle: MEM (3 letters), DPT (3 letters), and DEPT (4 letters). MEM stands for Member, DPT stands for Department, and DEPT stands for Department. These terms refer to different parts of an organization or company. A Member is an individual who is part of the organization, while a Department is a division within the organization that is responsible for a specific area of operations.