The Collaborative International Dictionary of English v.0.48:

Communicate \Com*mu"ni*cate\ (k[o^]m*m[=u]"n[i^]*k[=a]t ), v. t.
   [imp. & p. p. Communicated; p. pr. & vb. n.
   Communicating.] [L. communicatus, p. p. of communicare to
   communicate, fr. communis common. See Commune, v. i.]
   1. To share in common; to participate in. [Obs.]
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            To thousands that communicate our loss. --B. Jonson
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   2. To impart; to bestow; to convey; as, to communicate a
      disease or a sensation; to communicate motion by means of
      a crank.
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            Where God is worshiped, there he communicates his
            blessings and holy influences.        --Jer. Taylor.
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   3. To make known; to recount; to give; to impart; as, to
      communicate information to any one.
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   4. To administer the communion to. [R.]
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            She [the church] . . . may communicate him. --Jer.
                                                  Taylor.
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   Note: This verb was formerly followed by with before the
         person receiving, but now usually takes to after it.
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               He communicated those thoughts only with the Lord
               Digby.                             --Clarendon.

   Syn: To impart; bestow; confer; reveal; disclose; tell;
        announce; recount; make known.

   Usage: To Communicate, Impart, Reveal. Communicate is
          the more general term, and denotes the allowing of
          others to partake or enjoy in common with ourselves.
          Impart is more specific. It is giving to others a part
          of what we had held as our own, or making them our
          partners; as, to impart our feelings; to impart of our
          property, etc. Hence there is something more intimate
          in imparting intelligence than in communicating it. To
          reveal is to disclose something hidden or concealed;
          as, to reveal a secret.
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The Collaborative International Dictionary of English v.0.48:

Communicate \Com*mu"ni*cate\, v. i.
   1. To share or participate; to possess or enjoy in common; to
      have sympathy.
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            Ye did communicate with my affliction. --Philip. iv.
                                                  4.
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   2. To give alms, sympathy, or aid.
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            To do good and to communicate forget not. --Heb.
                                                  xiii. 16.
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   3. To have intercourse or to be the means of intercourse; as,
      to communicate with another on business; to be connected;
      as, a communicating artery.
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            Subjects suffered to communicate and to have
            intercourse of traffic.               --Hakluyt.
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            The whole body is nothing but a system of such
            canals, which all communicate with one another.
                                                  --Arbuthnot.
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   4. To partake of the Lord's supper; to commune.
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            The primitive Christians communicated every day.
                                                  --Jer. Taylor.
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WordNet (r) 3.0 (2006):

communicate
    v 1: transmit information ; "Please communicate this message to
         all employees"; "pass along the good news" [syn:
         communicate, pass on, pass, pass along, put
         across]
    2: transmit thoughts or feelings; "He communicated his anxieties
       to the psychiatrist" [syn: communicate, intercommunicate]
    3: transfer to another; "communicate a disease" [syn: convey,
       transmit, communicate]
    4: join or connect; "The rooms communicated"
    5: be in verbal contact; interchange information or ideas; "He
       and his sons haven't communicated for years"; "Do you
       communicate well with your advisor?"
    6: administer Communion; in church [ant: curse,
       excommunicate, unchurch]
    7: receive Communion, in the Catholic church [syn: commune,
       communicate]