rank of master

The title that the council won't grant to Anakin, instead, they advise him to take a seat.

Person 1: You're on this council but, we do not grant you the rank of Master
Person 2: What? How can you do this. This is outrageous. It's unfair. How can you be on the council and not be a Master
Person 1: Take a seat young Skywalker.
Person 2: Forgive me Master.

The Rank of Master

Something that Anakin Skywalker doesn’t have.

You are on this council, but we do not grant you the rank of master.- Mace Windu

Rank of Master

A title that Anakin will never get.

Mace Windu: You're on this council,but we do not grant you the Rank of Master.

Anakin:What? How can you do this? This is outrageous! It's unfair! How can you be on the council and not be a master?