The Collaborative International Dictionary of English v.0.48:

Deal \Deal\, v. t. [imp. & p. p. Dealt (d[e^]lt); p. pr. & vb.
   n. Dealing.] [OE. delen, AS. d[=ae]lan, fr. d[=ae]l share;
   akin to OS. d[=e]lian, D. deelen, G. theilen, teilen, Icel.
   deila, Sw. dela, Dan. dele, Goth. dailjan. See Deal, n.]
   1. To divide; to separate in portions; hence, to give in
      portions; to distribute; to bestow successively; --
      sometimes with out.
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            Is it not to deal thy bread to the hungry? --Is.
                                                  lviii. 7.
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            And Rome deals out her blessings and her gold.
                                                  --Tickell.
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            The nightly mallet deals resounding blows. --Gay.
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            Hissing through the skies, the feathery deaths were
            dealt.                                --Dryden.
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   2. Specifically: To distribute, as cards, to the players at
      the commencement of a game; as, to deal the cards; to deal
      one a jack.
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The Collaborative International Dictionary of English v.0.48:

Dealing \Deal"ing\, n.
   The act of one who deals; distribution of anything, as of
   cards to the players; method of business; traffic;
   intercourse; transaction; as, to have dealings with a person.
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   Double dealing, insincere, treacherous dealing; duplicity.


   Plain dealing, fair, sincere, honorable dealing; honest,
      outspoken expression of opinion.
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WordNet (r) 3.0 (2006):

dealing
    n 1: method or manner of conduct in relation to others; "honest
         dealing"
    2: the act of transacting within or between groups (as carrying
       on commercial activities); "no transactions are possible
       without him"; "he has always been honest is his dealings with
       me" [syn: transaction, dealing, dealings]