noun / verb
stamp
STAMP/stæmp/
An identifying impression made by pressing a marked surface.
A leaf-shaped stamp marks the red wax.

Etymology
Pounding developed into pressing a design onto something, producing an official mark certifying payment. The name then transferred to preprinted adhesive labels that certified postage had been paid.
In context
they start writing on the front of the postcard they turn it on inside and they write around the stamp
More examples
- The clerk stamps each form before filing it.
- Each bowl bears the potter's stamp underneath.
- An officer stamped my passport at the border.
Forms
stamp · stamps · stamped · stamping
Similar words
- imprint
- Emphasizes the visible mark left by pressure or printing.
- impression
- Can describe any indentation, not necessarily an identifying mark.
- seal
- Usually marks official authority or verifies a document's authenticity.