The Collaborative International Dictionary of English v.0.48:

Talk \Talk\, n.
   1. The act of talking; especially, familiar converse; mutual
      discourse; that which is uttered, especially in familiar
      conversation, or the mutual converse of two or more.
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            In various talk the instructive hours they passed.
                                                  --Pope.
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            Their talk, when it was not made up of nautical
            phrases, was too commonly made up of oaths and
            curses.                               --Macaulay.
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   2. Report; rumor; as, to hear talk of war.
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            I hear a talk up and down of raising our money.
                                                  --Locke.
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   3. Subject of discourse; as, his achievment is the talk of
      the town.
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   Syn: Conversation; colloquy; discourse; chat; dialogue;
        conference; communication. See Conversation.
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The Collaborative International Dictionary of English v.0.48:

Talk \Talk\, v. t.
   1. To speak freely; to use for conversing or communicating;
      as, to talk French.
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   2. To deliver in talking; to speak; to utter; to make a
      subject of conversation; as, to talk nonsense; to talk
      politics.
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   3. To consume or spend in talking; -- often followed by away;
      as, to talk away an evening.
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   4. To cause to be or become by talking. "They would talk
      themselves mad." --Shak.
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   To talk over.
      (a) To talk about; to have conference respecting; to
          deliberate upon; to discuss; as, to talk over a matter
          or plan.
      (b) To change the mind or opinion of by talking; to
          convince; as, to talk over an opponent.
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The Collaborative International Dictionary of English v.0.48:

talk \talk\ (t[add]k), v. i. [imp. & p. p. talked (t[add]kt);
   p. pr. & vb. n. talking.] [Cf. LG. talk talk, gabble, Prov.
   G. talken to speak indistinctly; or OD. tolken to interpret,
   MHG. tolkan to interpret, to tell, to speak indistinctly,
   Dan. tolke to interpret, Sw. tolka, Icel. t[=u]lka to
   interpret, t[=u]lkr an interpreter, Lith. tulkas an
   interpreter, tulkanti, tulk[=o]ti, to interpret, Russ.
   tolkovate to interpret, to talk about; or perhaps fr. OE.
   talien to speak (see tale, v. i. & n.).]
   1. To utter words; esp., to converse familiarly; to speak, as
      in familiar discourse, when two or more persons
      interchange thoughts.
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            I will buy with you, sell with you, talk with you,
            walk with you, and so following, but I will not eat
            with you.                             --Shak.
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   2. To confer; to reason; to consult.
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            Let me talk with thee of thy judgments. --Jer. xii.
                                                  1.
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   3. To prate; to speak impertinently. [Colloq.]
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   To talk of, to relate; to tell; to give an account of; as,
      authors talk of the wonderful remains of Palmyra. "The
      natural histories of Switzerland talk much of the fall of
      these rocks, and the great damage done." --Addison.

   To talk to, to advise or exhort, or to reprove gently; as,
      I will talk to my son respecting his conduct. [Colloq.]
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WordNet (r) 3.0 (2006):

talk
    n 1: an exchange of ideas via conversation; "let's have more
         work and less talk around here" [syn: talk, talking]
    2: discussion; (`talk about' is a less formal alternative for
       `discussion of'); "his poetry contains much talk about love
       and anger"
    3: the act of giving a talk to an audience; "I attended an
       interesting talk on local history"
    4: a speech that is open to the public; "he attended a lecture
       on telecommunications" [syn: lecture, public lecture,
       talk]
    5: idle gossip or rumor; "there has been talk about you lately"
       [syn: talk, talk of the town]
    v 1: exchange thoughts; talk with; "We often talk business";
         "Actions talk louder than words" [syn: talk, speak]
    2: express in speech; "She talks a lot of nonsense"; "This
       depressed patient does not verbalize" [syn: talk, speak,
       utter, mouth, verbalize, verbalise]
    3: use language; "the baby talks already"; "the prisoner won't
       speak"; "they speak a strange dialect" [syn: speak, talk]
    4: reveal information; "If you don't oblige me, I'll talk!";
       "The former employee spilled all the details" [syn: spill,
       talk]
    5: divulge confidential information or secrets; "Be careful--his
       secretary talks" [syn: spill the beans, let the cat out of
       the bag, talk, tattle, blab, peach, babble,
       sing, babble out, blab out] [ant: keep one's mouth
       shut, keep quiet, shut one's mouth]
    6: deliver a lecture or talk; "She will talk at Rutgers next
       week"; "Did you ever lecture at Harvard?" [syn: lecture,
       talk]

The Free On-line Dictionary of Computing (19 January 2023):

talk
talker system

    A Unix program and
   protocol supporting conversation between two or more users
   who may be logged into the same computer or different
   computers on a network.  Variants include ntalk, ytalk,
   and ports or emulators of these programs for other
   platforms.

   Unix has the talk program and protocol and its variants
   xtalk and ytalk for the X Window System; VMS has
   phone; Windows for Workgroups has chat.  ITS also has
   a talk system.  These split the screen into separate areas for
   each user.

   Unix's write command can also be used, though it does not
   attempt to separate input and output on the screen.

   Users of such systems are said to be in talk mode which has
   many conventional abbreviations and idioms.  Most of these
   survived into chat jargon, but many fell out of common use
   with the migration of user prattle from talk-like systems to
   chat systems in the early 1990s.  These disused
   talk-specific forms include:

   "BYE?" - are you ready to close the conversation?  This is the
   standard way to end a talk-mode conversation; the other person
   types "BYE" to confirm, or else continues the conversation.

   "JAM"/"MIN" - just a minute

   "O" - "over" (I have stopped talking).  Also "/" as in x/y - x
   over y, or two newlines (the latter being the most common).

   "OO" - "over and out" - end of conversation.

   "\" - Greek lambda.

   "R U THERE?" - are you there?

   "SEC" - wait a second.

   "/\/\/" - laughter.  But on a MUD, this usually means
   "earthquake fault".

   See also talk bomb.

   (1998-01-25)


The Devil's Dictionary (1881-1906):

TALK, v.t.  To commit an indiscretion without temptation, from an
impulse without purpose.