I. (ˈ)ka|shā noun
( -s )
Etymology: Middle French, from cacher to press, hide
1.
a. : a seal or stamp that is used especially as a mark of official approval
b. : an indication or sign of approval usually carrying with it great prestige
the president placed his cachet upon the project
2.
a. : a characteristic feature or quality conferring prestige or distinction or inspiring respect
regarded the possession of … land as a cachet of respectability — G.W.Johnson
b. : high status : prestige
being a guard gave you a certain cachet — New Yorker
few read them but those who do acquire cachet — Bernard De Voto
3. : two circles of wafer sheet sealed together with powdered medicine between them to form a dose that can be easily swallowed after being dipped in water — called also wafer capsule
4.
a. : a picture, design, or inscription stamped or printed on an envelope to commemorate some postal or philatelic event
b. : a pictorial or slogan advertisement on a piece of mail as part of a postal meter impression — called also postmark ad
c. : a motto or slogan included in a postal cancellation on a piece of mail
II. transitive verb
( -ed/-ing/-s )
: to put a cachet on
a cacheted envelope