||Concepts may be individuated in one of two ways: by the ways they are related to other concepts, or by features besides their relations to other concepts. Conceptual atomists claim that concepts are individuated without essential reference to any other concepts. So what makes something the concept CAT has nothing to do with its causal, functional, or inferential role relative to other concepts such as ANIMAL, FURRY, or HAS A TAIL. Instead, concepts are individuated by their relationships to things in the world. These may include such things as what they refer to, or what objects and properties they carry information about.