(verb)
to crush or pound something using a heavy instrument such as a hammer or a pestle;
e.g. This tool is used to stamp stones to a powder.
(verb)
to make an imprint or impression on or in the surface of something, or to attach a stamp to something (especially a postage stamp);
e.g. The final step of the production process is to stamp the company's logo onto the product.
(verb)
to form, cut out, or bend something using a mold or stamp;
e.g. She began to stamp out cookies from the sheet of dough.
(verb)
to characterize something or to confer a particular quality on it, or to otherwise have a strong effect on something;
e.g. She aims to stamp her problem-solving approach on the project.
(noun)
a small piece of paper with adhesive on one side, that is stuck to something that is to be sent my mail, in order to show that a certain amount of money has been paid for postage;
e.g. She had to buy a stamp so that she could post her letter.
(noun)
a tool or device that is used to mark something with a pattern or impression, or the mark made by such a tool;
e.g. He marked the document with a stamp, to indicate that it had been processed.
(noun)
a distinctive or characteristic quality or attribute of something or someone;
e.g. This piece of work bears the stamp of his attention to detail.