Definitions of clamp:

• noun:   a device (used by carpenters) that holds things firmly together
• verb:   impose or inflict forcefully

  Example: "The military government clamped a curfew onto the capital"

• verb:   fasten or fix with a clamp

  Example: "Clamp the chair together until the glue has hardened"

• name:  A surname (very rare: popularity rank in the U.S.: #30614)