WordReference Random House Learner's Dictionary of American English © 2017
de•duct /dɪˈdʌkt/USA pronunciation   v. [ + obj (+ from + obj)]
  1. to take away from a total:How much of this expense can you deduct from your taxes?
de•duct•i•ble, adj.: Is this income deductible?See -duc-.

WordReference Random House Unabridged Dictionary of American English © 2017
de•duct  (di dukt),USA pronunciation v.t. 
  1. to take away, as from a sum or amount:Once you deduct your expenses, there is nothing left.

v.i. 
  1. detract;
    abate (usually fol. by from):The rocky soil deducts from the value of his property.
  • Latin dēductus brought down, withdrawn, past participle of dēdūcere; see deduce
  • late Middle English 1375–1425
    • 1.See corresponding entry in Unabridged See  subtract. 
    add.


Collins Concise English Dictionary © HarperCollins Publishers::

deduct /dɪˈdʌkt/ vb
  1. (transitive) to take away or subtract (a number, quantity, part, etc)
Etymology: 15th Century: from Latin dēductus, past participle of dēdūcere to deduce



'deduct' also found in these entries:
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