Meaning of “stamp” - Learner’s Dictionary

stamp

verb uk us /stæmp/
MARK [ T ]

B2 to make a mark on something with a tool that you put ink on and press down:

She stamped the date on the invoice.
FOOT [ I, T ]

to put your foot down on the ground hard and quickly, often to show anger:

"No!" she shouted, stamping her foot.
→ See also rubber-stamp

(Definition of “stamp verb” from the Cambridge Learner’s Dictionary © Cambridge University Press)