'Lettre de cachet' definitions:

Definition of 'lettre de cachet'

From: WordNet
noun
A warrant formerly issued by a French king who could warrant imprisonment or death in a signed letter under his seal [syn: cachet, lettre de cachet]

Definition of 'Lettre de cachet'

From: GCIDE
  • Cachet \Cach"et\, n. [F. fr. cacher to hide.] A seal, as of a letter. [1913 Webster]
  • Lettre de cachet [F.], a sealed letter, especially a letter or missive emanating from the sovereign; -- much used in France before the Revolution as an arbitrary order of imprisonment. [1913 Webster] Cachexia