Source : Webster's Revised Unabridged Dictionary (1913)

Aware \A*ware"\, a. [OE. iwar, AS. gew[ae]r, fr. w[ae]r wary.
   The pref. ge- orig. meant together, completely. ?. See
   {Wary}.]
   1. Watchful; vigilant or on one's guard against danger or
      difficulty.

   2. Apprised; informed; cognizant; conscious; as, he was aware
      of the enemy's designs.

            Aware of nothing arduous in a task They never
            undertook.                            --Cowper.

Source : WordNet®

aware
     adj 1: (sometimes followed by `of') having or showing realization
            or perception; "was aware of his opponent's
            hostility"; "became aware of her surroundings"; "aware
            that he had exceeded the speed limit" [syn: {aware(p)}]
            [ant: {unaware}]
     2: bearing in mind; attentive to; "ever mindful of her health";
        "mindful of his responsibilities"; "mindful of these
        criticisms, I shall attempt to justify my action" [syn: {mindful}]
        [ant: {unmindful}]
     3: aware or knowing; "a witting tool of the Communists" [syn: {witting}]
        [ant: {unwitting}]
     4: (usually followed by `of') having knowledge or
        understanding; "our youth are cognizant of the law"; "I am
        well aware of his limitations" [syn: {cognizant}, {cognisant},
         {well aware(p)}, {aware(p)}] [ant: {incognizant}]
     5: alert and fully informed; "politically aware"; "a knowing
        collector of rare books"; "the most...technically aware of
        the novelists under thirty"- W.S.Graham; "surprisingly
        knowledgeable about what was going on" [syn: {aware(p)}, {knowing},
         {knowledgeable}]