Definitions of stamp:

• noun:   a block or die used to imprint a mark or design
• noun:   machine consisting of a heavy bar that moves vertically for pounding or crushing ores
• noun:   a symbol that is the result of printing

  Example: "He put his stamp on the envelope"

• noun:   a type or class

  Example: "More men of his stamp are needed"

• noun:   a device incised to make an impression; used to secure a closing or to authenticate documents
• noun:   a token that postal fees have been paid
• noun:   the distinctive form in which a thing is made
• verb:   reveal clearly as having a certain character

  Example: "His playing stamps him as a Romantic"

• verb:   destroy or extinguish as if by stamping with the foot

  Example: "Stamp fascism into submission"

• verb:   to mark, or produce an imprint in or on something

  Example: "A man whose name is permanently stamped on our maps"

• verb:   affix a stamp to

  Example: "Are the letters properly stamped?"

• verb:   crush or grind with a heavy instrument

  Example: "Stamp fruit extract the juice"

• verb:   form or cut out with a mold, form, or die

  Example: "Stamp needles"

• verb:   walk heavily
• verb:   treat or classify according to a mental stereotype
• verb:   raise in a relief
• name:  A surname (rare: 1 in 100000 families; popularity rank in the U.S.: #7510)