The Collaborative International Dictionary of English v.0.48:

Adjust \Ad*just"\, v. t. [imp. & p. p. Adjusted; p. pr. & vb.
   n. Adjusting.] [OF. ajuster, ajoster (whence F. ajouter to
   add), LL. adjuxtare to fit; fr. L. ad + juxta near; confused
   later with L. ad and justus just, right, whence F. ajuster to
   adjust. See Just, v. t. and cf. Adjute.]
   1. To make exact; to fit; to make correspondent or
      conformable; to bring into proper relations; as, to adjust
      a garment to the body, or things to a standard.
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   2. To put in order; to regulate, or reduce to system.
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            Adjusting the orthography.            --Johnson.
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   3. To settle or bring to a satisfactory state, so that
      parties are agreed in the result; as, to adjust accounts;
      the differences are adjusted.
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   4. To bring to a true relative position, as the parts of an
      instrument; to regulate for use; as, to adjust a telescope
      or microscope.
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   Syn: To adapt; suit; arrange; regulate; accommodate; set
        right; rectify; settle.
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WordNet (r) 3.0 (2006):

adjust
    v 1: alter or regulate so as to achieve accuracy or conform to a
         standard; "Adjust the clock, please"; "correct the
         alignment of the front wheels" [syn: adjust, set,
         correct]
    2: place in a line or arrange so as to be parallel or straight;
       "align the car with the curb"; "align the sheets of paper on
       the table" [syn: align, aline, line up, adjust] [ant:
       skew]
    3: adapt or conform oneself to new or different conditions; "We
       must adjust to the bad economic situation" [syn: adjust,
       conform, adapt]
    4: make correspondent or conformable; "Adjust your eyes to the
       darkness"
    5: decide how much is to be paid on an insurance claim