Source : Webster's Revised Unabridged Dictionary (1913)

Ground \Ground\ (ground), v. t. [imp. & p. p. {Grounded}; p. pr.
   & vb. n. {Grounding}.]
   1. To lay, set, or run, on the ground.

   2. To found; to fix or set, as on a foundation, reason, or
      principle; to furnish a ground for; to fix firmly.

            Being rooted and grounded in love.    --Eph. iii.
                                                  17.

            So far from warranting any inference to the
            existence of a God, would, on the contrary, ground
            even an argument to his negation.     --Sir W.
                                                  Hamilton

   3. To instruct in elements or first principles.

   4. (Elec.) To connect with the ground so as to make the earth
      a part of an electrical circuit.

   5. (Fine Arts) To cover with a ground, as a copper plate for
      etching (see {Ground}, n., 5); or as paper or other
      materials with a uniform tint as a preparation for
      ornament.

Grounding \Ground"ing\, n.
   The act, method, or process of laying a groundwork or
   foundation; hence, elementary instruction; the act or process
   of applying a ground, as of color, to wall paper, cotton
   cloth, etc.; a basis.

Source : WordNet®

grounding
     n 1: education or instruction in the fundamentals of a field of
          knowledge; "he lacks the foundation necessary for
          advanced study"; "a good grounding in mathematics" [syn:
           {foundation}]
     2: fastening electrical equipment to earth [syn: {earthing}]