Source : Webster's Revised Unabridged Dictionary (1913)

Inner \In"ner\, a. [AS. innera, a compar. fr. inne within, fr.
   in in. See {In}.]
   1. Further in; interior; internal; not outward; as, an spirit
      or its phenomena.

            This attracts the soul, Governs the inner man,the
            nobler part.                          --Milton.

   3. Not obvious or easily discovered; obscure.

   {Inner house} (Scot.), the first and second divisions of the
      court of Session at Edinburgh; also,the place of their
      sittings.

   {Inner jib} (Naut.), a fore-and-aft sail set on a stay
      running from the fore-topmast head to the jib boom.

   {Inner plate} (Arch.), the wall plate which lies nearest to
      the center of the roof,in a double-plated roof.

   {Inner post} (Naut.), a piece brought on at the fore side of
      the main post, to support the transoms.

   {Inner square} (Carp.), the angle formed by the inner edges
      of a carpenter's square.

Source : WordNet®

inner
     adj 1: located inward; "Beethoven's manuscript looks like a bloody
            record of a tremendous inner battle"- Leonard
            Bernstein; "she thinks she has no soul, no interior
            life, but the truth is that she has no access to it"-
            David Denby; "an internal sense of rightousness"-
            A.R.Gurney,Jr. [syn: {interior}, {internal}]
     2: located or occurring within or closer to a center; "an inner
        room" [syn: {inner(a)}] [ant: {outer(a)}]
     3: innermost or essential; "the inner logic of Cubism"; "the
        internal contradictions of the theory"; "the intimate
        structure of matter" [syn: {internal}, {intimate}]
     4: confined to an exclusive group; "privy to inner knowledge";
        "inside information"; "privileged information" [syn: {inside},
         {privileged}]
     5: exclusive to a center; especially a center of influence;
        "inner regions of the organization"; "inner circles of
        government"
     6: inside or closer to the inside of the body; "the inner ear"