subtract

[ suhb-trakt ]
/ səbˈtrækt /

verb (used with object)

to withdraw or take away, as a part from a whole.
Mathematics. to take (one number or quantity) from another; deduct.

verb (used without object)

to take away something or a part, as from a whole.

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
SYNONYMS FOR subtract
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.
Related formssub·tract·er, nounun·sub·tract·ed, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for subtract

British Dictionary definitions for subtract

subtract

/ (səbˈtrækt) /

verb

to calculate the difference between (two numbers or quantities) by subtraction
to remove (a part of a thing, quantity, etc) from the whole

Derived Formssubtracter, noun

Word Origin for subtract

C16: from Latin subtractus withdrawn, from subtrahere to draw away from beneath, from sub- + trahere to draw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