Synonyms: give permission for, permit, sanction, allow, agree, approve, etc.
Definition of authorise
verb(used with object)
1. to give authority or official power to; empower:He authorize an employee to sign purchase orders.2. to give authority for; formally sanction (an act or proceeding): Congress authorized the new tax on tobacco. 3. to establish by authority or usage: Such arrangement was long authorized by etiquette books. 4. to afford a ground for; warrant; justify. Other examples: Do get the Leader to authorise a bold statement. Please authorise us to debit your account and, where possible, give a day-time telephone number in case of query. I can authorize payments up to $4 000. I hereby authorize my delegate to duplicate my key.