n.
Pronunciation: ka- ' sh ā
Function: noun
Etymology: French, from cacher
Date: circa 1639
1 a : a seal used especially 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 cachet it used to ― Truman Capote>
3 : a medicinal preparation for swallowing consisting of a case usually 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