Pronunciation: (ô'thu-rīz"), [key]
—v.t., -ized, -iz•ing.
1. to give authority or official power to; empower: to 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: an arrangement long authorized by etiquette books.
4. to afford a ground for; warrant; justify. Also, esp. Brit.,au'thor•ise".
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.