Dictionary.com
definitions
  • synonyms

subtract

[suh b-trakt]
See more synonyms for subtract on Thesaurus.com
verb (used with object)
  1. to withdraw or take away, as a part from a whole.
  2. Mathematics. to take (one number or quantity) from another; deduct.
Show More
verb (used without object)
  1. to take away something or a part, as from a whole.
Show More

Origin of subtract

1530–40; < Latin subtractus (past participle of subtrahere to draw away from underneath), equivalent to sub- sub- + trac- (past participle stem of trahere to draw) + -tus past participle suffix
Related formssub·tract·er, nounun·sub·tract·ed, adjective

Synonyms

See more synonyms for subtract on Thesaurus.com
1, 3. Subtract, deduct express diminution in sum or quantity. To subtract suggests taking a part from a whole or a smaller from a larger: to subtract the tax from one's salary. To deduct is to take away an amount or quantity from an aggregate or total so as to lessen or lower it: to deduct a discount. Subtract is both transitive and intransitive, and has general or figurative uses; deduct is always transitive and usually concrete and practical in application.

Antonyms

1–3. add.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for subtract

Contemporary Examples

Historical Examples


British Dictionary definitions for subtract

subtract

verb
  1. to calculate the difference between (two numbers or quantities) by subtraction
  2. to remove (a part of a thing, quantity, etc) from the whole
Show More
Derived Formssubtracter, noun

Word Origin

C16: from Latin subtractus withdrawn, from subtrahere to draw away from beneath, from sub- + trahere to draw
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 subtract

v.

1540s, from Latin subtractus, past participle of subtrahere (see subtraction). Related: Subtracted; subtracting. Earlier verb form was subtraien (early 15c.).

Here he teches þe Craft how þou schalt know, whan þou hast subtrayd, wheþer þou hast wel ydo or no. ["Craft of Numbering," c.1425]
Show More
Online Etymology Dictionary, © 2010 Douglas Harper