Definitions of stamper:

• noun:   someone who walks with a heavy noisy gait or who stamps on the ground
• noun:   a workman whose job is to form or cut out by applying a mold or die (either by hand or by operating a stamping machine)
• noun:   a power tool that stamps

  Example: "A metal stamper"

• name:  A surname (common: 1 in 20000 families; popularity rank in the U.S.: #2488)