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3 definitions found
 for subtract
From The Collaborative International Dictionary of English v.0.48 :

  Subtract \Sub*tract"\, v. t. [imp. & p. p. Subtracted; p. pr.
     & vb. n. Subtracting.] [L. subtractus, p. p. of subtrahere
     to draw from beneath, withdraw, remove; sub under + trahere
     to draw. See Trace, v. t., and cf. Substract.]
     To withdraw, or take away, as a part from the whole; to
     deduct; as, subtract 5 from 9, and the remainder is 4.
     [1913 Webster]

From WordNet (r) 3.0 (2006) :

      v 1: make a subtraction; "subtract this amount from my paycheck"
           [syn: subtract, deduct, take off] [ant: add, add
      2: take off or away; "this prefix was subtracted when the word
         was borrowed from French"

From Moby Thesaurus II by Grady Ward, 1.0 :

  103 Moby Thesaurus words for "subtract":
     abate, abrade, abrupt, abstract, add, algebraize, alienate, bate,
     calculate, cast, cast off, cast out, cipher, compute, curtail,
     cut adrift, cut off, cut out, decrease, deduct, delete, depart,
     depreciate, derogate, detract, detract from, diminish,
     disarticulate, disconnect, discount, disengage, disjoin, disjoint,
     disparage, dissociate, disunite, divide, divorce, dope out, drain,
     draw back, eat away, eject, erode, estimate, estrange, expel,
     extract, extract roots, figure, figure in, figure out, file away,
     impair, isolate, knock, leach, leave, lessen, measure, multiply,
     part, pull away, pull back, pull out, purify, reckon, reduce,
     refine, remove, retrench, rub away, score, segregate, separate,
     sequester, set apart, set aside, shorten, shut off, split,
     stand aloof, stand apart, stand aside, step aside, subduct,
     take account of, take away, take away from, take from, take off,
     take out, tally, thin, thin out, throw off, throw out, uncouple,
     unyoke, wear away, weed, withdraw, work out

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