authorisation

(noun) a document giving an official instruction or command. Synonyms: mandate, authorization.

(noun) the power or right to give orders or make decisions. Synonyms: authority, authorization, potency, dominance, say-so. Examples: "He has the authority to issue warrants." "Deputies are given authorization to make arrests." "A place of potency in the state."

(noun) official permission or approval. Synonyms: authority, authorization, sanction. Example: "Authority for the program was renewed several times."

(noun) the act of conferring legality or sanction or formal warrant. Synonyms: authorization, empowerment.