Authorization (noun)

1. The act or process of granting permission, power, or authority to do something.
2. The act or process of giving a sanction or endorsement to a particular action or decision.
3. A document or certificate that gives official permission or authorization to do something.

Origin:

Derived from the latin word 'auctoritas' meaning authority, and from the word 'auctor' meaning author or maker.

Examples:

1. He received authorization from the manager to proceed with the project.
2. The authorization process involved a background check and a security clearance.
3. She showed her authorization to enter the secure area.
4. The authorization of the new policy was met with opposition from the workers.
5. The authorization was granted after the completion of all the necessary paperwork.