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

deduct \deduct"\, v. t. imp.  p. p. deducted; p. pr.  vb.
   n. deducting. l. deductus, p. p. of deducere to deduct.
   see deduce.
   1. to lead forth or out. obs.
      1913 webster

            a people deducted out of the city of philippos.
                                                  --udall.
      1913 webster

   2. to take away, separate, or remove, in numbering,
      estimating, or calculating; to subtract; -- often with
      from or out of.
      1913 webster

            deduct what is but vanity, or dress.  --pope.
      1913 webster

            two and a half per cent should be deducted out of
            the pay of the foreign troops.        --bp. burnet.
      1913 webster

            we deduct from the computation of our years that
            part of our time which is spent in . . . infancy.
      --norris.
      1913 webster

   3. to reduce; to diminish. obs. "do not deduct it to days."
      --massinger.
      1913 webster
see also:
deducted deducting deduce 

[2] : WordNet (r) 2.0

deduct
     v 1: make a subtraction syn: subtract, take off ant: add
     2: retain and refrain from disbursing; of payments; "my
        employer is withholding taxes" syn: withhold, recoup
     3: reason by deduction; establish by deduction syn: deduce,
        infer, derive
see also:
subtract take off add withhold recoup deduce 
infer derive 

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

75 moby thesaurus words for "deduct":
   abate, abrade, abridge, abstract, allow, bate, charge off, collect,
   compress, conclude, curtail, cut, cut back, cut down, damp, dampen,
   decrease, deduce, deflate, depreciate, depress, derive, derogate,
   detract, diminish, discount, disparage, downgrade, drain, draw,
   draw back, eat away, erode, extract, file away, gather, impair,
   judge, kick back, knock off, leach, lessen, lower, make,
   make allowance, make out, pare, purify, rebate, reduce, refine,
   refund, remove, retrench, roll back, rub away, scale down, shorten,
   simplify, step down, subduct, subtract, take, take a premium,
   take away, take from, take off, take out, thin, thin out,
   tune down, wear away, weed, withdraw, write off

Deduct >> D Words
Deduct, definition of term: Deduct
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