Dictionary
let•tre de ca•chet
Pronunciation: (le-tru du ka-she'), [key]
—pl. let•tres de ca•chetPronunciation: (le-tru du ka-she'). [key]
French.
a letter under the seal of the sovereign, esp. one ordering imprisonment, frequently without trial.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.