If you make a concession to someone, you agree to let them do or have something, especially in order to end an argument or conflict.

A concession is a special right or privilege that is given to someone.

A concession is a special price which is lower than the usual price and which is often given to old people, students, and the unemployed.

A concession is an arrangement where someone is given the right to sell a product or to run a business, especially in a building belonging to another business.