License

n. official permission, authorization; document which shows proof of authorization, certificate; freedom (of action, belief, etc.); lack of restraint, excessive freedom

v. issue a license, grant a permit; authorize, permit, allow

To license or grant license is to give permission. A license (also spelled licence) is the document demonstrating that permission. License may be granted by a party ("licensor") to another party ("licensee") as an element of an agreement between those parties. A shorthand definition of a license is "a promise (by the licensor) not to sue (the licensee)."
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Noun
1. a legal document giving official permission to do something
(synonym) licence, permit
(hypernym) legal document, legal instrument, official document, instrument
(hyponym) building permit
(derivation) licence, certify
(classification) law, jurisprudence
2. freedom to deviate deliberately from normally applicable rules or practices (especially in behavior or speech)
(synonym) licence
(hypernym) liberty
(hyponym) poetic license
3. excessive freedom; lack of due restraint; "when liberty becomes license dictatorship is near"- Will Durant; "the intolerable license with which the newspapers break...the rules of decorum"- Edmund Burke
(synonym) licence
(hypernym) liberty
4. the act of giving a formal (usually written) authorization
(synonym) permission, permit
(hypernym) authorization, authorisation, empowerment
(hyponym) clearance
(derivation) licence, certify
Verb
1. authorize officially; "I am licensed to practice law in this state"
(synonym) licence, certify
(hypernym) authorize, authorise, pass, clear
(hyponym) franchise
(entail) approve, O.K., okay, sanction
(derivation) permission, permit

(v. t.)
To permit or authorize by license; to give license to; as, to license a man to preach.
  

(n.)
The document granting such permission.
  

(n.)
That deviation from strict fact, form, or rule, in which an artist or writer indulges, assuming that it will be permitted for the sake of the advantage or effect gained; as, poetic license; grammatical license, etc.
  

(n.)
Excess of liberty; freedom abused, or used in contempt of law or decorum; disregard of law or propriety.
  

(n.)
Authority or liberty given to do or forbear any act; especially, a formal permission from the proper authorities to perform certain acts or to carry on a certain business, which without such permission would be illegal; a grant of permission; as, a license to preach, to practice medicine, to sell gunpowder or intoxicating liquors.
  

A special permission to do something on, or with, somebody else’s property which, were it not for the license, could be legally prevented or give rise to legal action in tort or trespass. - (read more on License)