Source : Webster's Revised Unabridged Dictionary (1913)

Isle \Isle\, n. [Obs.]
   See {Aisle}.

Isle \Isle\, n. [OF. isle, F. [^i]le, L. insula; cf. Lith. sala.
   Cf. {Insulate}.]
   1. An island. [Poetic]

            Imperial rule of all the seagirt isles. --Milton.

   2. (Zo["o]l.) A spot within another of a different color, as
      upon the wings of some insects.

Isle \Isle\, v. t.
   To cause to become an island, or like an island; to surround
   or encompass; to island. [Poetic]

         Isled in sudden seas of light.           --Tennyson.

Source : WordNet®

isle
     n : a small island [syn: {islet}]