First Known Use: 1718
Dictionary
lettre de cachet
noun let·tre de ca·chet \ˈle-trə-də-ˌka-ˈshā\
plural lettres de cachet \-trə(z)-\
Definition of LETTRE DE CACHET
: a letter bearing an official seal and usually authorizing imprisonment without trial of a named person
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Origin of LETTRE DE CACHET
French, literally, letter with a seal
Rhymes with LETTRE DE CACHET
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