backstamp

/ˈbækˌstæmp/
verb
  1. To mark the back of a document, envelope, or package with a stamp, especially for dating or identification.
    • Please backstamp the forms with today's date.
    • They backstamp each package to track when it arrives at the warehouse.
    • The clerk will backstamp all incoming mail before sorting it.
noun
  1. A mark or stamp placed on the back of a document, envelope, or package, often indicating the date of receipt or processing.
    • The library uses a backstamp to record when books are returned.
    • The backstamp on the contract confirmed the date it was filed.
    • The envelope had a backstamp showing it was received on March 15.
  2. A stamp or mark on the back of a postage stamp, used by collectors to identify the stamp's origin or cancellation.
    • The backstamp showed that the stamp was used in a small town post office.
    • A rare backstamp can increase the value of a postage stamp.
    • The collector examined the backstamp to verify the stamp's authenticity.
What does "backstamp" mean? | whatsthatwordmean | whatsthatwordmean