General English


  • noun a group of special keys used for certain applications


  • A supplementary or separate grid of keys having number, function, or cursor keys, which simplify or accelerate keyboard entry.
  • Any small grid of keys, such as that of a calculator or telephone.

Information & Library Science

  • noun a set of numerical keys often used for security devices to open doors by means of a known code
  • noun numerical keys set separately on the right-hand side of a computer keyboard