Source : Webster's Revised Unabridged Dictionary (1913)

Resource \Re*source"\ (r?*s?rs"), n. [F. ressource, fr. OF.
   ressourdre, resourdre, to spring forth or up again; pref. re-
   re- + sourdre to spring forth. See {Source}.]
   1. That to which one resorts orr on which one depends for
      supply or support; means of overcoming a difficulty;
      resort; expedient.

            Threat'nings mixed with prayers, his last resource.
                                                  --Dryden.

   2. pl. Pecuniary means; funds; money, or any property that
      can be converted into supplies; available means or
      capabilities of any kind.

            Scotland by no means escaped the fate ordained for
            every country which is connected, but not
            incorporated, with another country of greater
            resources.                            --Macaulay.

   Syn: Expedient; resort; means; contrivance.

Source : WordNet®

resource
     n 1: available source of wealth; a new or reserve supply that can
          be drawn upon when needed
     2: a source of aid or support that may be drawn upon when
        needed; "the local library is a valuable resource"
     3: the ability to deal resourcefully with unusual problems; "a
        man of resource" [syn: {resourcefulness}, {imagination}]