Authorise is a term used to describe the process of granting permission or authority to do something. ACCREDIT, LET, LEGALISE, SANCTION, ALLOW, ENABLE, APPROVE, LICENSE, EMPOWER, PASS, VEST, SIGN, PRESCRIBE, COMMISSION, and OKAY are all words that can be used to describe the act of authorising. ACCREDIT means to grant official recognition or approval to someone or something. LET means to ALLOW or permit. LEGALISE means to make something legal. SANCTION means to give official permission or approval for an action. ALLOW means to give permission or to agree to something. ENABLE means to make something possible. APPROVE means to accept or agree with something. LICENSE means to give official permission to do something. EMPOWER means to give someone the power or authority to do something. PASS means to APPROVE or accept something. VEST means to give someone the right to do something. SIGN means to write one's name on a document. PRESCRIBE means to state officially what must be done. COMMISSION means to give someone the authority to do something. OKAY means to accept or agree to something.