Source : Webster's Revised Unabridged Dictionary (1913)

United \U*nit"ed\, a.
   Combined; joined; made one.

   {United Brethren}. (Eccl.) See {Moravian}, n.

   {United flowers} (Bot.), flowers which have the stamens and
      pistils in the same flower.

   {The United Kingdom}, Great Britain and Ireland; -- so named
      since January 1, 1801, when the Legislative Union went
      into operation.

Unite \U*nite"\, v. t. [imp. & p. p. {United}; p. pr. & vb. n.
   {Uniting}.] [L. unitus, p. p. of unire to unite, from unus
   one. See {One}.]
   1. To put together so as to make one; to join, as two or more
      constituents, to form a whole; to combine; to connect; to
      join; to cause to adhere; as, to unite bricks by mortar;
      to unite iron bars by welding; to unite two armies.

   2. Hence, to join by a legal or moral bond, as families by
      marriage, nations by treaty, men by opinions; to join in
      interest, affection, fellowship, or the like; to cause to
      agree; to harmonize; to associate; to attach.

            Under his great vicegerent reign abide, United as
            one individual soul.                  --Milton.

            The king proposed nothing more than to unite his
            kingdom in one form of worship.       --Clarendon.

   Syn: To add; join; annex; attach. See {Add}.

Source : WordNet®

united
     adj 1: characterized by unity; being or joined into a single
            entity; "presented a united front" [ant: {divided}]
     2: involving the joint activity of two or more; "the attack was
        met by the combined strength of two divisions"; "concerted
        action"; "the conjunct influence of fire and strong
        dring"; "the conjunctive focus of political opposition";
        "a cooperative effort"; "a united effort"; "joint military
        activities" [syn: {combined}, {concerted}, {conjunct}, {conjunctive},
         {cooperative}]
     3: of or relating to two people who are married to each other
        [syn: {joined}]