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stamp:see postage stamppostage stamp,
government stamp affixed to mail to indicate payment of postage. The term includes stamps printed or embossed on postcards and envelopes as well as the adhesive labels.
..... Click the link for more information. ; sealseal,
stamp made from a die or matrix of metal, a gem, or other hard substance that yields an impression on wax or other soft substance. The use of seals is very ancient, examples of great antiquity occurring in China, Egypt, Greece, Rome, and other places.
..... Click the link for more information. .
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a. See postage stamp
b. a mark applied to postage stamps for cancellation purposes
2. a similar piece of gummed paper used for commercial or trading purposes
3. a piece of gummed paper or other mark applied to official documents to indicate payment of a fee, validity, ownership, etc.
4. Brit informal a national insurance contribution, formerly recorded by means of a stamp on an official card
5. an instrument or machine for crushing or pounding ores, etc., or the pestle in such a device
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005