Word Study
carte blanche
CIDE DICTIONARY
carte blanche, [F., fr. OF. carte paper + -blanc, blanche, white. See 1st Card.].
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. [1913 Webster]
OXFORD DICTIONARY
carte blanche, n. full discretionary power given to a person.
Etymology
F, = blank paper
THESAURUS
carte blanche
ample scope, authority, blank check, clearance, copyright, discretion, dispensation, elbowroom, favor, field, franchise, free course, free hand, free play, free scope, freedom, full authority, full power, full scope, full swing, grant, immunity, indulgence, latitude, leeway, liberty, license, long rope, maneuvering space, margin, no holds barred, open mandate, open space, patent, permission, play, power, power of attorney, prerogative, privilege, range, right, room, rope, sanction, say, say-so, scope, sea room, space, special favor, swing, tolerance, warrant, way, wide berthROGET THESAURUS
carte blanche
Permission
N permission, leave, allowance, sufferance, tolerance, toleration, liberty, law, license, concession, grace, indulgence, favor, dispensation, exemption, release, connivance, vouchsafement, authorization, warranty, accordance, admission, permit, warrant, brevet, precept, sanction, authority, firman, hukm, pass, passport, furlough, license, carte blanche, ticket of leave, grant, charter, patent, letters patent, permitting, permissive, indulgent, permitted, patent, chartered, permissible, allowable, lawful, legitimate, legal, legalized, licit, unforbid, unforbidden, unconditional, by leave, with leave, on leave, speciali gratia, under favor of, pace, ad libitum, by all means, yes, avec permissin, brevet d'invention.For further exploring for "carte blanche" in Webster Dictionary Online