Source : Webster's Revised Unabridged Dictionary (1913)

Shingle \Shin"gle\, n. [Prob. from Norw. singl, singling, coarse
   gravel, small round stones.] (Geol.)
   Round, water-worn, and loose gravel and pebbles, or a
   collection of roundish stones, such as are common on the
   seashore and elsewhere.

Shingle \Shin"gle\, n. [OE. shingle, shindle, fr. L. scindula,
   scandula; cf. scindere to cleave, to split, E. shed, v.t.,
   Gr. ???, ???, shingle, ??? to slit.]
   1. A piece of wood sawed or rived thin and small, with one
      end thinner than the other, -- used in covering buildings,
      especially roofs, the thick ends of one row overlapping
      the thin ends of the row below.

            I reached St. Asaph, . . . where there is a very
            poor cathedral church covered with shingles or
            tiles.                                --Ray.

   2. A sign for an office or a shop; as, to hang out one's
      shingle. [Jocose, U. S.]

   {Shingle oak} (Bot.), a kind of oak ({Quercus imbricaria})
      used in the Western States for making shingles.

Shingle \Shin"gle\, v. t. [imp. &. p. p. {Shingled}; p. pr. &
   vb. n. {Shingling}.]
   1. To cover with shingles; as, to shingle a roof.

            They shingle their houses with it.    --Evelyn.

   2. To cut, as hair, so that the ends are evenly exposed all
      over the head, as shingles on a roof.

Shingle \Shin"gle\, v. t.
   To subject to the process of shindling, as a mass of iron
   from the pudding furnace.

Source : WordNet®

shingle
     n 1: building material used as siding or roofing [syn: {shake}]
     2: coarse beach gravel of small water-worn stones and pebbles
        (or a stretch of shore covered with such gravel)
     3: a small signboard outside the office of a lawyer or doctor,
        e.g.

shingle
     v : cover with shingles; "shingle a roof"