cachet

A seal, as of a letter.

A special characteristic or quality; prestige, especially via association.

I remember when this diner was a quiet hangout, but lately it seems to be losing its cachet.

In fact, within the Waffen-SS as a whole, the carrying of a personal weapon such as a pistol or a submachine-gun in addition to or instead of the issue rifle became something of a cachet.

A commemorative stamped design or inscription on an envelope, other than a cancellation or pre-printed postage.

The Alcatraz pelican cachet turned out to have a unique history of its own which had been lost over the years. Master cachet designer and artist John Coulthard (1903-1966) of 17 Elm Street Modesto, California, was the creator of the stamp.

A sealed envelope containing an item whose price is being negotiated.

The most romantic rite of bargaining is the cachet; even its name suggests a thrilling secrecy. The cachet is used when a broker negotiates the sale of a diamond.

A capsule containing a pharmaceutical preparation.

In order to facilitate taking by the patient, powders are often ordered to be dispensed in cachets.

One cachet on an empty stomach first thing in the morning, a second in one and a half hours, a third in one hour afterwards, and a fourth two hours later.

To mark (an envelope) with a commemorative stamped design or inscription.