Source : Webster's Revised Unabridged Dictionary (1913)

Aid \Aid\, v. t. [imp. & p. p. {Aided}; p. pr. & vb. n.
   {Aiding}.] [F. aider, OF. aidier, fr. L. adjutare to help,
   freq. of adjuvare to help; ad + juvare to help. Cf.
   {Adjutant}.]
   To support, either by furnishing strength or means in
   co["o]peration to effect a purpose, or to prevent or to
   remove evil; to help; to assist.

         You speedy helpers . . . Appear and aid me in this
         enterprise.                              --Shak.

   Syn: To help; assist; support; sustain; succor; relieve;
        befriend; co["o]perate; promote. See {Help}.

Aid \Aid\, n. [F. aide, OF. a["i]de, a["i]e, fr. the verb. See
   {Aid}, v. t.]
   1. Help; succor; assistance; relief.

            An unconstitutional mode of obtaining aid. --Hallam.

   2. The person or thing that promotes or helps in something
      done; a helper; an assistant.

            It is not good that man should be alone; let us make
            unto him an aid like unto himself.    --Tobit viii.
                                                  6.

   3. (Eng. Hist.) A subsidy granted to the king by Parliament;
      also, an exchequer loan.

   4. (Feudal Law) A pecuniary tribute paid by a vassal to his
      lord on special occasions. --Blackstone.

   5. An aid-de-camp, so called by abbreviation; as, a general's
      aid.

   {Aid prayer} (Law), a proceeding by which a defendant
      beseeches and claims assistance from some one who has a
      further or more permanent interest in the matter in suit.
      

   {To pray in aid}, to beseech and claim such assistance.

Source : WordNet®

aid
     v 1: give help or assistance; be of service; "Everyone helped out
          during the earthquake"; "Can you help me carry this
          table?"; "She never helps around the house" [syn: {help},
           {assist}]
     2: improve the condition of; "These pills will help the
        patient" [syn: {help}]

aid
     n 1: a resource; "visual aids in teaching"; "economic assistance
          to depressed areas" [syn: {assistance}, {help}]
     2: the activity of contributing to the fulfillment of a need or
        furtherance of an effort or purpose; "he gave me an assist
        with the housework"; "could not walk without assistance";
        "rescue party went to their aid"; "offered his help in
        unloading" [syn: {assist}, {assistance}, {help}]
     3: a gift of money to support a worthy person or cause [syn: {economic
        aid}]
     4: the work of caring for or attending to someone or something;
        "no medical care was required"; "the old car needed
        constant attention" [syn: {care}, {attention}, {tending}]

Source : Free On-Line Dictionary of Computing

AID
     
        {Algebraic Interpretive Dialogue}