—n. 1. formal permission from a governmental or other constituted authority to do something, as to carry on some business or profession.
2. a certificate, tag, plate, etc., giving proof of such permission; official permit: a driver's license. 3. permission to do or not to do something.
4. intentional deviation from rule, convention, or fact, as for the sake of literary or artistic effect: poetic license. 5. exceptional freedom allowed in a special situation.
6. excessive or undue freedom or liberty.
8. the legal right to use a patent owned by another.
—v.t. to grant authoritative permission or license to.