The Collaborative International Dictionary of English v.0.48:

Change \Change\, n. [F. change, fr. changer. See Change. v.
   t.]
   1. Any variation or alteration; a passing from one state or
      form to another; as, a change of countenance; a change of
      habits or principles.
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            Apprehensions of a change of dynasty. --Hallam.
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            All the days of my appointed time will I wait, till
            my change come.                       --Job xiv. 14.
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   2. A succesion or substitution of one thing in the place of
      another; a difference; novelty; variety; as, a change of
      seasons.
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            Our fathers did for change to France repair.
                                                  --Dryden.
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            The ringing grooves of change.        --Tennyson.
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   3. A passing from one phase to another; as, a change of the
      moon.
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   4. Alteration in the order of a series; permutation.
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   5. That which makes a variety, or may be substituted for
      another.
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            Thirty change (R.V. changes) of garments. --Judg.
                                                  xiv. 12.
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   6. Small money; the money by means of which the larger coins
      and bank bills are made available in small dealings;
      hence, the balance returned when payment is tendered by a
      coin or note exceeding the sum due.
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   7. [See Exchange.] A place where merchants and others meet
      to transact business; a building appropriated for
      mercantile transactions. [Colloq. for Exchange.]
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   8. A public house; an alehouse. [Scot.]
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            They call an alehouse a change.       --Burt.
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   9. (Mus.) Any order in which a number of bells are struck,
      other than that of the diatonic scale.
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            Four bells admit twenty-four changes in ringing.
                                                  --Holder.
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   Change of life, the period in the life of a woman when
      menstruation and the capacity for conception cease,
      usually occurring between forty-five and fifty years of
      age.

   Change ringing, the continual production, without
      repetition, of changes on bells, See def. 9. above.

   Change wheel (Mech.), one of a set of wheels of different
      sizes and number of teeth, that may be changed or
      substituted one for another in machinery, to produce a
      different but definite rate of angular velocity in an
      axis, as in cutting screws, gear, etc.

   To ring the changes on, to present the same facts or
      arguments in variety of ways.

   Syn: Variety; variation; alteration; mutation; transition;
        vicissitude; innovation; novelty; transmutation;
        revolution; reverse.
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WordNet (r) 3.0 (2006):

change ringing
    n 1: ringing tuned bells in a fixed order that is continually
         changing