Breadcrumb Home > Dictionary > Index L lettre de cachet*: Meaning and Definition of Find definitions for: let•tre de ca•chet Pronunciation: (le-tr du ka-she'), [key] — pl. let•tres de ca•chet 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. Lettish lettre de change* TrendingHere are the facts and trivia that people are buzzing about. Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 12 Steps to a New Year New Year's Resolution to Slim Down? Martin Luther King Speeches Books of the Bible: Old Testament Books in Order ✖ Related Content Daily Word Quiz: nonplus Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language