The Collaborative International Dictionary of English v.0.48:

Tip \Tip\, v. t. [imp. & p. p. Tipped; p. pr. & vb. n.
   Tipping.]
   To form a point upon; to cover the tip, top, or end of; as,
   to tip anything with gold or silver.
   [1913 Webster]

         With truncheon tipped with iron head.    --Hudibras.
   [1913 Webster]

         Tipped with jet,
         Fair ermines spotless as the snows they press.
                                                  --Thomson.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Tipping \Tip"ping\, n. (Mus.)
   A distinct articulation given in playing quick notes on the
   flute, by striking the tongue against the roof of the mouth;
   double-tonguing.
   [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

35 Moby Thesaurus words for "tipping":
   aslant, aslope, atilt, bevel, beveled, bias, biased, canting,
   careening, inclinational, inclinatory, inclined, inclining,
   leaning, listing, out of plumb, out of square, pitched, raking,
   recumbent, shelving, shelvy, sideling, sidelong, slant, slanted,
   slanting, slantways, slantwise, sloped, sloping, tilted, tilting,
   tipped, tipsy