Concept/ˈkɑːnsept/ Definition 1 of 3Pro Tip 1/3Understanding Clarity Use 'concept' to explain how well someone understands something. Even children have a clear concept of fair play. Pro Tip 2/3Beyond Objects 'Concept' often refers to non-physical ideas, unlike objects that you can touch. His concept of happiness doesn't revolve around material possessions. Pro Tip 3/3Cultural Perception Concepts can vary in meaning across different cultures. The concept of personal space differs from country to country.