The return of an estate or interest to a landlord or freeholder  after the grant or lease has expired. Or, the interest retained by a fee simple owner of real estate after granting a terminable estate or interest in such property to another. For example, when a freehold owner gives a lease to a tenant, the interest which the owner has left is known as the reversion. There may also be a provision accompanying restrictive covenants in a deed or lease, which contains provisions that in the event the restrictions are breached, title to the property shall revert to the grantor or landlord.