LicenseThe lawful grant of a right to do something which would otherwise be illegal or wrongful. It may be gratuitous, contractual or coupled with an interest in land. The grantor of license is the licensor and the grantee is the licensee. A gratuitous ("mere" or "bare") license can always be revoked (ie. cancelled), but revocability of a contractual license depends on the terms of the contract. A license coupled with an interest in land may be irrevocable and unlike the other two categories, may be binding on successors in title of the licensor. One example of license is permission, usually required in writing, given specifically by an owner to a tenant, enabling something to be done which otherwise would be in breach of a term of the lease. A license does not itself transfer any interest in the land but may authorise the licensee to enter the licensor's land for some specific purposes of the license; the licensor may enter the land and use it in any way not inconsistent with the rights of the licensee. However, a landlord may authorise by license some act or omission by a tenant, which would otherwise be a breach of the terms of the lease.