carte blanche Meaning, Definition & Usage

  1. noun complete freedom or authority to act

WordNet

Carte` blanche"
Etymology
F., fr. OF. carte paper + -blanc, blanche, white. See 1st Card.
Definitions
  1. A blank paper, with a person's signature, etc., at the bottom, given to another person, with permission to superscribe what conditions he pleases. Hence: Unconditional terms; unlimited authority.

Webster 1913