More about carte blanche
          
- First recorded in 1655–65 as blank, blanck, or blanche (without carte) in the card game sense.
 
- First recorded in 1700–10 in the sense “blank, signed document,” and in 1760–70 in the more general sense highlighted here, “discretionary power.”
 
- Comes from French and translates literally as “blank document.”
 
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EXAMPLES OF CARTE BLANCHE
- The director gave the lead actor carte blanche to improvise during certain key scenes.
 
- As the team captain, she had carte blanche to choose the starting lineup for each game.