A seal, as of a letter.
A special characteristic or quality; prestige.
I remember when this diner was a quiet hangout, but lately it seems to be losing its cachet.
A commemorative stamped design or inscription on an envelope, other than a cancellation or pre-printed postage.
A sealed envelope containing an item whose price is being negotiated.
A capsule containing a pharmaceutical preparation.
A hidden location from which one can observe birds while remaining unseen.
To mark (an envelope) with a commemorative stamped design or inscription.