Topic summary
Concepts

Extracted from the Wikipedia article Concept.
Types
Concepts can also be classified by domain. Everyday concepts are non-technical categories used in daily life. They are usually practical, intuitive groupings relevant to ordinary interaction with the world but without precise definitions or exact boundaries. Scientific concepts, by contrast, are more precise and may lack immediate relevance to everyday experience. They are often based on exact definitions, typically with the goal of eliminating ambiguity and ensuring consistent measurement, prediction, and explanation. More fine-grained classifications distinguish between the specific fields to which concepts belong, including mathematical, linguistic, psychological, and moral concepts.