The Collaborative International Dictionary of English v.0.48:

Accord \Ac*cord"\, v. t. [imp. & p. p. Accorded; p. pr. & vb.
   n. According.] [OE. acorden, accorden, OF. acorder, F.
   accorder, fr. LL. accordare; L. ad + cor, cordis, heart. Cf.
   Concord, Discord, and see Heart.]
   1. To make to agree or correspond; to suit one thing to
      another; to adjust; -- followed by to. [R.]
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            Her hands accorded the lute's music to the voice.
                                                  --Sidney.
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   2. To bring to an agreement, as persons; to reconcile; to
      settle, adjust, harmonize, or compose, as things; as, to
      accord suits or controversies.
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            When they were accorded from the fray. --Spenser.
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            All which particulars, being confessedly knotty and
            difficult can never be accorded but by a competent
            stock of critical learning.           --South.
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   3. To grant as suitable or proper; to concede; to award; as,
      to accord to one due praise. "According his desire."
      --Spenser.
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The Collaborative International Dictionary of English v.0.48:

Accord \Ac*cord"\, n. [OE. acord, accord, OF. acort, acorde, F.
   accord, fr. OF. acorder, F. accorder. See Accord, v. t.]
   1. Agreement or concurrence of opinion, will, or action;
      harmony of mind; consent; assent.
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            A mediator of an accord and peace between them.
                                                  --Bacon.
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            These all continued with one accord in prayer.
                                                  --Acts i. 14.
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   2. Harmony of sounds; agreement in pitch and tone; concord;
      as, the accord of tones.
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            Those sweet accords are even the angels' lays. --Sir
      J. Davies.
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   3. Agreement, harmony, or just correspondence of things; as,
      the accord of light and shade in painting.
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   4. Voluntary or spontaneous motion or impulse to act; --
      preceded by own; as, of one's own accord.
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            That which groweth of its own accord of thy harvest
            thou shalt not reap.                  --Lev. xxv. 5.
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            Of his own accord he went unto you.   --2 Cor. vii.
                                                  17.
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   5. (Law) An agreement between parties in controversy, by
      which satisfaction for an injury is stipulated, and which,
      when executed, bars a suit. --Blackstone.
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   With one accord, with unanimity.
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            They rushed with one accord into the theater. --Acts
                                                  xix. 29.
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The Collaborative International Dictionary of English v.0.48:

Accord \Ac*cord"\, v. i.
   1. To agree; to correspond; to be in harmony; -- followed by
      with, formerly also by to; as, his disposition accords
      with his looks.
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            My heart accordeth with my tongue.    --Shak.
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            Thy actions to thy words accord.      --Milton.
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   2. To agree in pitch and tone.
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WordNet (r) 3.0 (2006):

accord
    n 1: harmony of people's opinions or actions or characters; "the
         two parties were in agreement" [syn: agreement, accord]
         [ant: disagreement, dissension, dissonance]
    2: concurrence of opinion; "we are in accord with your proposal"
       [syn: accord, conformity, accordance]
    3: a written agreement between two states or sovereigns [syn:
       treaty, pact, accord]
    4: sympathetic compatibility
    v 1: go together; "The colors don't harmonize"; "Their ideas
         concorded" [syn: harmonize, harmonise, consort,
         accord, concord, fit in, agree]
    2: allow to have; "grant a privilege" [syn: accord, allot,
       grant]

The Devil's Dictionary (1881-1906):

ACCORD, n.  Harmony.