Carte blanche

[Sarah]

A blank paper, with a person's signature, etc., at the bottom,given to another person, with permission to superscribe whatconditions he pleases. Hence: Unconditional terms; unlimitedauthority.

[Kai]

[unconditional] [authority].

[Britney]

[Carte blanche] literally means [blank check]. It is a term used when person A does a favor for person B and in return [requests] [carte blanche] (aka, a promised favor in the future.) Just like a blank check can be any amount, carte blanche could could be any range of favors.

[Lizzy Liz]

complete freedom to do something: