[ca.chet] n [F, fr. cacher] (ca. 1639) 1 a: a seal used esp. as a mark of official approval b: an indication of approval carrying great prestige
2. a: a characteristic feature or quality conferring prestige b: prestige "being rich ... doesn't have the ~ it used to --Truman Capote"
3: a medicinal preparation for swallowing consisting of a case usu. of rice-flour paste enclosing a medicine
4. a: a design or inscription on an envelope to commemorate a postal or philatelic event b: an advertisement forming part of a postage meter impression c: a motto or slogan included in a postal cancellation