noun.
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noun.
A mark or quality, as of distinction, individuality, or authenticity.
noun.
Great prestige or appeal.
noun.
A seal on a document, such as a letter.
noun.
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noun.
A commemorative design stamped on an envelope to mark a postal or philatelic event.
noun.
A motto forming part of a postal cancellation.
noun.
A kind of wafer capsule formerly used by pharmacists for presenting an unpleasant-tasting drug.