[1] : The Collaborative International Dictionary of English v.0.48

vary \va"ry\, v. i.
   1. to alter, or be altered, in any manner; to suffer a
      partial change; to become different; to be modified; as,
      colors vary in different lights.
      1913 webster

            that each from other differs, first confess;
            next, that he varies from himself no less. --pope.
      1913 webster

   2. to differ, or be different; to be unlike or diverse; as,
      the laws of france vary from those of england.
      1913 webster

   3. to alter or change in succession; to alternate; as, one
      mathematical quantity varies inversely as another.
      1913 webster

            while fear and anger, with alternate grace,
            pant in her breast, and vary in her face. --addison.
      1913 webster

   4. to deviate; to depart; to swerve; -- followed by from; as,
      to vary from the law, or from reason. -- locke.
      1913 webster

   5. to disagree; to be at variance or in dissension; as, men
      vary in opinion.
      1913 webster

            the rich jewel which we vary for.     --webster
                                                  1623.
      1913 webster

[2] : The Collaborative International Dictionary of English v.0.48

vary \va"ry\, v. t. imp.  p. p. varied; p. pr.  vb. n.
   varying. oe. varien, f. varier, l. variare, fr. varius
   various. see various, and cf. variate.
   1913 webster
   1. to change the aspect of; to alter in form, appearance,
      substance, position, or the like; to make different by a
      partial change; to modify; as, to vary the properties,
      proportions, or nature of a thing; to vary a posture or an
      attitude; to vary one's dress or opinions.
      1913 webster

            shall we vary our device at will,
            even as new occasion appears?         --spenser.
      1913 webster

   2. to change to something else; to transmute; to exchange; to
      alternate.
      1913 webster

            gods, that never change their state,
            vary oft their love and hate.         --waller.
      1913 webster

            we are to vary the customs according to the time and
            country where the scene of action lies. --dryden.
      1913 webster

   3. to make of different kinds; to make different from one
      another; to diversify; to variegate.
      1913 webster

            god hath varied their inclinations.   --sir t.
                                                  browne.
      1913 webster

            god hath here
            varied his bounty so with new delights. --milton.
      1913 webster

   4. mus. to embellish; to change fancifully; to present
      under new aspects, as of form, key, measure, etc. see
      variation, 4.
      1913 webster
see also:
varied varying various variate variation 

[3] : The Collaborative International Dictionary of English v.0.48

vary \va"ry\, n.
   alteration; change. obs. --shak.
   1913 webster

[4] : WordNet (r) 2.0

vary
     v 1: make or become different in some particular way, without
          permanently losing one's or its former characteristics
          or essence; "her mood changes in accordance with the
          weather"; "the supermarket's selection of vegetables
          varies according to the season" syn: change, alter
     2: be at variance with; be out of line with syn: deviate, diverge,
         depart ant: conform
     3: be subject to change in accordance with a variable; "prices
        vary"; "his moods vary depending on the weather"
     4: make something more diverse and varied; "vary the menu"
        syn: variegate, motley
     also: varied
see also:
change alter deviate diverge depart conform 
variegate motley varied 

[5] : Moby Thesaurus II by Grady Ward, 1.0

194 moby thesaurus words for "vary":
   accommodate, adapt, adjust, agree to disagree, alter, alternate,
   ameliorate, analyze, anatomize, atomize, back and fill,
   be at cross-purposes, be changed, be converted into, be distinct,
   be distinguished, be renewed, bear off, bend, better, bottom out,
   branch off, break, break off, break up, camouflage, change,
   change the bearing, checker, chop, chop and change, chop logic,
   clash, clash with, collide, come about, come around, come round,
   conflict, conflict with, contradict, contrast with, convert,
   counter, curve, deform, degenerate, denature, depart, depart from,
   desynonymize, deteriorate, detour, deviate, deviate from, differ,
   difference, differentiate, digress, disaccord, disaccord with,
   disagree, disagree with, discord, discriminate, disequalize,
   disguise, disjoin, dissent, dissimilate, distinguish, disunify,
   dither, divagate, divaricate, divaricate from, diverge,
   diverge from, diversify, divide, ebb and flow, equivocate, extend,
   fit, flop, flounder, fluctuate, go, go through phases, haul around,
   heel, improve, individualize, individuate, intermit, jangle, jar,
   jar with, jibe, jostle, lack regularity, make a distinction, mark,
   mark off, mark out, meliorate, mismatch, mismate, mitigate, modify,
   modulate, mutate, negate, not accord with, not square with, object,
   oscillate, overthrow, part, particularize, pendulate, personalize,
   qualify, re-create, realign, rebuild, reconstruct, redesign,
   refashion, refine a distinction, refit, reform, relieve, remake,
   remodel, renew, reorganize, reshape, restructure, revamp, revive,
   ring changes, ring the changes, run, seesaw, segregate, separate,
   set apart, set off, sever, severalize, sheer, shift,
   shift the scene, shilly-shally, shuffle, shuffle the cards,
   specialize, split hairs, stagger, stand apart, stand over against,
   subvert, sway, swerve, swing, switch, tack, take a turn, teeter,
   teeter-totter, tergiversate, totter, transform, trend, turn,
   turn aside, turn into, turn the corner, turn the scale,
   turn the tables, turn the tide, turn upside down, undergo a change,
   vacillate, variate, variegate, veer, warp, waver, wax and wane,
   wobble, work a change, worsen

Vary >> V Words
Vary, definition of term: Vary
vary_pag1.html