A "concept" is an abstract idea or a general notion that represents something. It helps us understand and categorize our experiences and the world around us. Concepts can be simple, like color or shape, or complex, like justice or freedom. They serve as building blocks for knowledge and communication. In various fields, such as philosophy, science, and art, concepts play a crucial role in shaping theories and practices. For example, in science, the concept of gravity helps explain how objects interact with one another. Understanding concepts allows us to think critically and engage with different subjects effectively.