1. [n]  (law) a legal proceeding in which the appellant resorts to a higher court for the purpose of obtaining a review of a lower court decision and a reversal of the lower court's judgment or the granting of a new trial; "their appeal was denied in the superior court"
2. [n]  attractiveness that interests or pleases or stimulates; "his smile was part of his appeal to her"
3. [n]  request for a sum of money; "an appeal to raise money for starving children"
4. [n]  earnest or urgent request; "an entreaty to stop the fighting"; "an appeal for help"; "an appeal to the public to keep calm"
5. [v]  request earnestly (something from somebody); ask for aid or protection; "appeal to somebody for help"; "Invoke God in times of trouble"
6. [v]  cite as an authority; resort to; "He invoked the law that would save him"; "I appealed to the law of 1900"; "She invoked an ancient law"
7. [v]  be attractive to; "The idea of a vacation appeals to me"; "The beautiful garden attracted many people"
8. [v]  take a court case to a higher court for review; "He was found guilty but appealed immediately"
9. [v]  challenge (a decision); "She appealed the verdict"

APPEAL is a 6 letter word that starts with A.

1. \Ap*peal"\, v. t. [imp. & p. p. {Appealed}; p. pr. & vb.
   n. {Appealing}.] [OE. appelen, apelen, to appeal, accuse, OF.
   appeler, fr. L. appellare to approach, address, invoke,
   summon, call, name; akin to appellere to drive to; ad +
   pellere to drive. See {Pulse}, and cf. {Peal}.]
   1. (Law)
      (a) To make application for the removal of (a cause) from
          an inferior to a superior judge or court for a
          rehearing or review on account of alleged injustice or
          illegality in the trial below. We say, the cause was
          appealed from an inferior court.
      (b) To charge with a crime; to accuse; to institute a
          private criminal prosecution against for some heinous
          crime; as, to appeal a person of felony.
   2. To summon; to challenge. [Archaic]
            Man to man will I appeal the Norman to the lists.
                                                  --Sir W.
                                                  Scott.
   3. To invoke. [Obs.] --Milton.
   

2. \Ap*peal"\, v. t.
   1. (Law) To apply for the removal of a cause from an inferior
      to a superior judge or court for the purpose of
      re["e]xamination of for decision. --Tomlins.
            I appeal unto C[ae]sar.               --Acts xxv.
                                                  11.
   2. To call upon another to decide a question controverted, to
      corroborate a statement, to vindicate one's rights, etc.;
      as, I appeal to all mankind for the truth of what is
      alleged. Hence: To call on one for aid; to make earnest
      request.
            I appeal to the Scriptures in the original.
                                                  --Horsley.
            They appealed to the sword.           --Macaulay.
   

3. \Ap*peal"\, n. [OE. appel, apel, OF. apel, F. appel, fr.
   appeler. See {Appeal}, v. t.]
   1. (Law)
      (a) An application for the removal of a cause or suit from
          an inferior to a superior judge or court for
          re["e]xamination or review.
      (b) The mode of proceeding by which such removal is
          effected.
      (c) The right of appeal.
      (d) An accusation; a process which formerly might be
          instituted by one private person against another for
          some heinous crime demanding punishment for the
          particular injury suffered, rather than for the
          offense against the public.
      (e) An accusation of a felon at common law by one of his
          accomplices, which accomplice was then called an
          approver. See {Approvement}. --Tomlins. --Bouvier.
   2. A summons to answer to a charge. --Dryden.
   3. A call upon a person or an authority for proof or
      decision, in one's favor; reference to another as witness;
      a call for help or a favor; entreaty.
            A kind of appeal to the Deity, the author of
            wonders.                              --Bacon.
   4. Resort to physical means; recourse.
            Every milder method is to be tried, before a nation
            makes an appeal to arms.              --Kent.
   

a reference of any case from an inferior to a superior court. Moses established in the wilderness a series of judicatories such that appeals could be made from a lower to a higher (Ex. 18:13-26.)

Under the Roman law the most remarkable case of appeal is that of Paul from the tribunal of Festus at Caesarea to that of the emperor at Rome (Acts 25:11, 12, 21, 25). Paul availed himself of the privilege of a Roman citizen in this matter.