Noun

• S: (n) mandate, authorization, authorisation (a document giving an official instruction or command)
• S: (n) authority, authorization, authorisation, potency, dominance, say-so (the power or right to give orders or make decisions) "he has the authority to issue warrants"; "deputies are given authorization to make arrests"; "a place of potency in the state"
• S: (n) authority, authorization, authorisation, sanction (official permission or approval) "authority for the program was renewed several times"
• S: (n) authorization, authorisation, empowerment (the act of conferring legality or sanction or formal warrant)