Source : Webster's Revised Unabridged Dictionary (1913)

Too \Too\, adv. [The same word as to, prep. See {To}.]
   1. Over; more than enough; -- noting excess; as, a thing is
      too long, too short, or too wide; too high; too many; too
      much.

            His will, too strong to bend, too proud to learn.
                                                  --Cowley.

   2. Likewise; also; in addition.

            An honest courtier, yet a patriot too. --Pope.

            Let those eyes that view The daring crime, behold
            the vengeance too.                    --Pope.

   {Too too}, a duplication used to signify great excess.

            O that this too too solid flesh would melt. --Shak.

            Such is not Charles his too too active age.
                                                  --Dryden.

   Syn: Also; likewise. See {Also}.

Source : WordNet®

too
     adv 1: to an excessive degree; "too big" [syn: {excessively}, {overly},
             {to a fault}]
     2: in addition; "he has a Mercedes, too" [syn: {besides}, {also},
         {likewise}, {as well}]