The Collaborative International Dictionary of English v.0.48:

Call \Call\ (k[add]l), v. t. [imp. & p. p. Called (k[add]ld);
   p. pr. & vb. n. Calling] [OE. callen, AS. ceallian; akin to
   Icel. & Sw. kalla, Dan. kalde, D. kallen to talk, prate, OHG.
   kall[=o]n to call; cf. Gr. ghry`ein to speak, sing, Skr. gar
   to praise. Cf. Garrulous.]
   1. To command or request to come or be present; to summon;
      as, to call a servant.
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            Call hither Clifford; bid him come amain --Shak.
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   2. To summon to the discharge of a particular duty; to
      designate for an office, or employment, especially of a
      religious character; -- often used of a divine summons;
      as, to be called to the ministry; sometimes, to invite;
      as, to call a minister to be the pastor of a church.
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            Paul . . . called to be an apostle    --Rom. i. 1.
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            The Holy Ghost said, Separate me Barnabas and Saul
            for the work whereunto I have called them. --Acts
                                                  xiii. 2.
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   3. To invite or command to meet; to convoke; -- often with
      together; as, the President called Congress together; to
      appoint and summon; as, to call a meeting of the Board of
      Aldermen.
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            Now call we our high court of Parliament. --Shak.
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   4. To give name to; to name; to address, or speak of, by a
      specifed name.
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            If you would but call me Rosalind.    --Shak.
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            And God called the light Day, and the darkness he
            called Night.                         --Gen. i. 5.
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   5. To regard or characterize as of a certain kind; to
      denominate; to designate.
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            What God hath cleansed, that call not thou common.
                                                  --Acts x. 15.
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   6. To state, or estimate, approximately or loosely; to
      characterize without strict regard to fact; as, they call
      the distance ten miles; he called it a full day's work.
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            [The] army is called seven hundred thousand men.
                                                  --Brougham.
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   7. To show or disclose the class, character, or nationality
      of. [Obs.]
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            This speech calls him Spaniard.       --Beau. & Fl.
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   8. To utter in a loud or distinct voice; -- often with off;
      as, to call, or call off, the items of an account; to call
      the roll of a military company.
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            No parish clerk who calls the psalm so clear. --Gay.
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   9. To invoke; to appeal to.
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            I call God for a witness.             --2 Cor. i. 23
                                                  [Rev. Ver. ]
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   10. To rouse from sleep; to awaken.
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             If thou canst awake by four o' the clock.
             I prithee call me. Sleep hath seized me wholly.
                                                  --Shak.
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   To call a bond, to give notice that the amount of the bond
      will be paid.

   To call a party (Law), to cry aloud his name in open court,
      and command him to come in and perform some duty requiring
      his presence at the time on pain of what may befall him.


   To call back, to revoke or retract; to recall; to summon
      back.

   To call down, to pray for, as blessing or curses.

   To call forth, to bring or summon to action; as, to call
      forth all the faculties of the mind.

   To call in,
       (a) To collect; as, to call in debts or money; ar to
           withdraw from cirulation; as, to call in uncurrent
           coin.
       (b) To summon to one's side; to invite to come together;
           as, to call in neighbors.

   To call (any one) names, to apply contemptuous names (to
      any one).

   To call off, to summon away; to divert; as, to call off the
      attention; to call off workmen from their employment.

   To call out.
       (a) To summon to fight; to challenge.
       (b) To summon into service; as, to call out the militia.


   To call over, to recite separate particulars in order, as a
      roll of names.

   To call to account, to demand explanation of.

   To call to mind, to recollect; to revive in memory.

   To call to order, to request to come to order; as:
       (a) A public meeting, when opening it for business.
       (b) A person, when he is transgressing the rules of
           debate.

   To call to the bar, to admit to practice in courts of law.


   To call up.
       (a) To bring into view or recollection; as to call up the
           image of deceased friend.
       (b) To bring into action or discussion; to demand the
           consideration of; as, to call up a bill before a
           legislative body.

   Syn: To name; denominate; invite; bid; summon; convoke;
        assemble; collect; exhort; warn; proclaim; invoke;
        appeal to; designate.

   Usage: To Call, Convoke, Summon. Call is the generic
          term; as, to call a public meeting. To convoke is to
          require the assembling of some organized body of men
          by an act of authority; as, the king convoked
          Parliament. To summon is to require attendance by an
          act more or less stringent anthority; as, to summon a
          witness.
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The Collaborative International Dictionary of English v.0.48:

Calling \Call"ing\, n.
   1. The act of one who calls; a crying aloud, esp. in order to
      summon, or to attact the attention of, some one.
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   2. A summoning or convocation, as of Parliament.
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            The frequent calling and meeting of Parlaiment.
                                                  --Macaulay.
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   3. A divine summons or invitation; also, the state of being
      divinely called.
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            Who hath . . . called us with an holy calling. --2
                                                  Tim. i. 9.
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            Give diligence to make yior calling . . . sure. --2
                                                  Pet. i. 10.
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   4. A naming, or inviting; a reading over or reciting in
      order, or a call of names with a view to obtaining an
      answer, as in legislative bodies.
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   5. One's usual occupation, or employment; vocation; business;
      trade.
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            The humble calling of ter female parent.
                                                  --Thackeray.
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   6. The persons, collectively, engaged in any particular
      professions or employment.
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            To impose celibacy on wholy callings. --Hammond.
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   7. Title; appellation; name. [Obs.]
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            I am more proud to be Sir Rowland's son
            His youngest son, and would not change that calling.
                                                  --Shak.

   Syn: Occupation; employment; business; trade; profession;
        office; engagement; vocation.
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WordNet (r) 3.0 (2006):

calling
    n 1: the particular occupation for which you are trained [syn:
         career, calling, vocation]

Moby Thesaurus II by Grady Ward, 1.0:

104 Moby Thesaurus words for "calling":
   ambition, apostolic orders, appellation, appointment, area, art,
   aspiration, baptism, basis, beck, beck and call, bid, biddance,
   bidding, business, call, calling forth, canonization, career,
   career building, careerism, cause, christening, conferment,
   consecration, consideration, convocation, craft, definition,
   denomination, designation, election, employment,
   engraved invitation, evocation, game, goal, ground, guiding light,
   guiding star, handicraft, holy orders, ideal, identification,
   indent, induction, inspiration, installation, institution,
   intention, investiture, invitation, invite, invocation, job,
   lifework, line, line of business, line of work, lodestar,
   mainspring, major orders, matter, metier, minor orders, mission,
   motive, mystery, naming, nicknaming, nod, nomination, number,
   occupation, ordainment, orders, ordination, practice,
   preconization, preferment, presentation, principle, profession,
   province, pursuit, racket, reading in, reason, requisition, sake,
   score, source, specialization, specialty, spring, styling, summons,
   terming, trade, ulterior motive, vocation, walk, walk of life,
   work



Easton's 1897 Bible Dictionary:

Calling
   a profession, or as we usually say, a vocation (1 Cor. 7:20).
   The "hope of your calling" in Eph. 4:4 is the hope resulting
   from your being called into the kingdom of God.