The term 'Individual Unit' can be defined as a THING (5 letters) or an ITEM (4 letters). It is used to refer to a single unit or entity that is distinct from other units or entities. This term is often used in the context of business, economics, and sociology to describe a single person, group, or organization. In the context of business, it is used to refer to a single company or organization that is distinct from other companies or organizations. In the context of economics, it is used to refer to a single person or household that is distinct from other persons or households. In the context of sociology, it is used to refer to a single individual or group that is distinct from other individuals or groups.