Synonyms:
cachet, lettre_de_cachet
Meaning: a warrant formerly issued by a French king who could warrant imprisonment or death in a signed letter under his seal
Synonyms:
cachet, seal, seal_of_approval
Meaning: an indication of approved or superior status
Usage examples
His style has a brio, a poise, a savoir faire, a je ne sais quoi, which stamps all his work with the cachet of literary superiority.