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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