mammal is itself superordinate to the subordinate concept fox. All members of a subordinate concept inherit the defining features of their superordinate concepts.

To use a concept, an individual must possess it. Concept acquisition is the process of learning a concept, as when a child learns the concept cat by seeing, hearing, and interacting with cats. In some cases, new concepts are formed by combining pre-existing ones, such as combining the concepts white and cat to form the concept white cat. Concepts are closely related to conception,