[ dih-duhkt ]
/ dɪˈdʌkt /

verb (used with object)

to take away, as from a sum or amount: Once you deduct your expenses, there is nothing left.

verb (used without object)

detract; abate (usually followed by from): The rocky soil deducts from the value of his property.

Nearby words

  1. dedifferentiate,
  2. dedifferentiation,
  3. dedolomitization,
  4. dedolomitize,
  5. deduce,
  6. deductible,
  7. deductible clause,
  8. deduction,
  9. deduction theorem,
  10. deductive

Origin of deduct

1375–1425; late Middle English < Latin dēductus brought down, withdrawn, past participle of dēdūcere; see deduce

Related formspre·de·duct, verb (used with object)un·de·duct·ed, adjective

Can be confuseddeduce deduct Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for deduct

British Dictionary definitions for deduct


/ (dɪˈdʌkt) /


(tr) to take away or subtract (a number, quantity, part, etc)income tax is deducted from one's wages

Word Origin for deduct

C15: from Latin dēductus, past participle of dēdūcere to deduce

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for deduct



early 15c., from Latin deductus, past participle of deducere "lead down, bring away;" see deduce, with which it formerly was interchangeable. Technically, deduct refers to taking away portions or amounts; subtract to taking away numbers. Related: Deducted; deducting.

Online Etymology Dictionary, © 2010 Douglas Harper