use \use\, v. t. imp.  p. p. used; p. pr.  vb. n. using.
   oe. usen, f. user to use, use up, wear out, ll. usare to
   use, from l. uti, p. p. usus, to use, ol. oeti, oesus; of
   uncertain origin. cf. utility.
   1913 webster
   1. to make use of; to convert to one's service; to avail
      one's self of; to employ; to put a purpose; as, to use a
      plow; to use a chair; to use time; to use flour for food;
      to use water for irrigation.
      1913 webster

            launcelot gobbo, use your legs.       --shak.
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            some other means i have which may be used. --milton.
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   2. to behave toward; to act with regard to; to treat; as, to
      use a beast cruelly. "i will use him well." --shak.
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            how wouldst thou use me now?          --milton.
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            cato has used me ill.                 --addison.
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   3. to practice customarily; to make a practice of; as, to use
      diligence in business.
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            use hospitality one to another.       --1 pet. iv.
                                                  9.
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   4. to accustom; to habituate; to render familiar by practice;
      to inure; -- employed chiefly in the passive participle;
      as, men used to cold and hunger; soldiers used to
      hardships and danger.
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            i am so used in the fire to blow.     --chaucer.
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            thou with thy compeers,
            used to the yoke, draw'st his triumphant wheels.
                                                  --milton.
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   to use one's self, to behave. obs. "pray, forgive me, if
      i have used myself unmannerly." --shak.

   to use up.
      a to consume or exhaust by using; to leave nothing of;
          as, to use up the supplies.
      b to exhaust; to tire out; to leave no capacity of force
          or use in; to overthrow; as, he was used up by
          fatigue. colloq.
          1913 webster

   syn: employ.

   usage: use, employ. we use a thing, or make use of it,
          when we derive from it some enjoyment or service. we
          employ it when we turn that service into a particular
          channel. we use words to express our general meaning;
          we employ certain technical terms in reference to a
          given subject. to make use of, implies passivity in
          the thing; as, to make use of a pen; and hence there
          is often a material difference between the two words
          when applied to persons. to speak of "making use of
          another" generally implies a degrading idea, as if we
          had used him as a tool; while employ has no such
          sense. a confidential friend is employed to negotiate;
          an inferior agent is made use of on an intrigue.
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                i would, my son, that thou wouldst use the power
                which thy discretion gives thee, to control
                and manage all.                   --cowper.
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                to study nature will thy time employ:
                knowledge and innocence are perfect joy.
                                                  --dryden.
          1913 webster
see also:
used using utility to use one's self to use up use 
employ 

used
     adj 1: employed in accomplishing something; "the principle of
            surprise is the most used and misused of all the
            principles of war"- h.h.arnold  i.c.eaker ant: misused
     2: of persons; taken advantage of; "after going out of his way
        to help his friend get the job he felt not appreciated but
        used" syn: exploited, ill-used, put-upon, victimized,
         victimised
     3: previously used or owned by another; "bought a secondhand
        or used car" syn: secondhand
see also:
misused exploited ill-used put-upon victimized victimised 
secondhand 

43 moby thesaurus words for "used":
   ablated, acquainted with, adapted to, applied, by the board,
   cast-off, consumed, depleted, dissipated, down the drain, employed,
   eroded, exercised, exerted, expended, familiar with, forfeit,
   forfeited, gone, gone to waste, hand-me-down, in use,
   irretrievable, long-lost, lost, lost to, misspent, not new,
   occupied, old, out the window, pawed-over, run to seed, secondhand,
   shrunken, spent, squandered, unnew, used to, used up, wasted, worn,
   worn away