reduce

verb
re·​duce | \ ri-ˈdüs How to pronounce reduce (audio) , -ˈdyüs \
reduced; reducing

Definition of reduce

transitive verb

1a : to draw together or cause to converge : consolidate reduce all the questions to one
b(1) : to diminish in size, amount, extent, or number reduce taxes reduce the likelihood of war
(2) : to decrease the volume and concentrate the flavor of by boiling add the wine and reduce the sauce for two minutes
c : to narrow down : restrict the Indians were reduced to small reservations
d : to make shorter : abridge
2 archaic : to restore to righteousness : save
3 : to bring to a specified state or condition the impact of the movie reduced them to tears
4a : to force to capitulate
b : force, compel
5a : to bring to a systematic form or character reduce natural events to laws
b : to put down in written or printed form reduce an agreement to writing
6 : to correct (a fracture) by bringing displaced or broken parts back into their normal positions
7a : to lower in grade or rank : demote
b : to lower in condition or status : downgrade
8a : to diminish in strength or density
b : to diminish in value
9a(1) : to change the denominations or form of without changing the value
(2) : to construct a geometrical figure similar to but smaller than (a given figure)
b : to transpose from one form into another : convert
c : to change (an expression) to an equivalent but more fundamental expression reduce a fraction
10 : to break down (as by crushing or grinding) : pulverize
11a : to bring to the metallic state by removal of nonmetallic elements reduce an ore by heat
b : deoxidize
c : to combine with or subject to the action of hydrogen
d(1) : to change (an element or ion) from a higher to a lower oxidation state
(2) : to add one or more electrons to (an atom or ion or molecule)
12 : to change (a stressed vowel) to an unstressed vowel

intransitive verb

1a(1) : to become diminished or lessened especially : to lose weight by dieting
(2) : to become reduced ferric iron reduces to ferrous iron
b : to become concentrated or consolidated
c : to undergo meiosis
2 : to become converted or equated

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Other Words from reduce

reducer noun
reducibility \ ri-​ˌdü-​sə-​ˈbi-​lə-​tē How to pronounce reduce (audio) , -​ˌdyü-​ \ noun
reducible \ ri-​ˈdü-​sə-​bəl How to pronounce reduce (audio) , -​ˈdyü-​ \ adjective
reducibly \ ri-​ˈdü-​sə-​blē How to pronounce reduce (audio) \ adverb

Synonyms & Antonyms for reduce

Synonyms

Antonyms

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Choose the Right Synonym for reduce

decrease, lessen, diminish, reduce, abate, dwindle mean to grow or make less. decrease suggests a progressive decline in size, amount, numbers, or intensity. slowly decreased the amount of pressure lessen suggests a decline in amount rather than in number. has been unable to lessen her debt diminish emphasizes a perceptible loss and implies its subtraction from a total. his visual acuity has diminished reduce implies a bringing down or lowering. you must reduce your caloric intake abate implies a reducing of something excessive or oppressive in force or amount. the storm abated dwindle implies progressive lessening and is applied to things growing visibly smaller. their provisions dwindled slowly

conquer, vanquish, defeat, subdue, reduce, overcome, overthrow mean to get the better of by force or strategy. conquer implies gaining mastery of. Caesar conquered Gaul vanquish implies a complete overpowering. vanquished the enemy and ended the war defeat does not imply the finality or completeness of vanquish which it otherwise equals. the Confederates defeated the Union forces at Manassas subdue implies a defeating and suppression. subdued the native tribes after years of fighting reduce implies a forcing to capitulate or surrender. the city was reduced after a month-long siege overcome suggests getting the better of with difficulty or after hard struggle. overcame a host of bureaucratic roadblocks overthrow stresses the bringing down or destruction of existing power. violently overthrew the old regime

Examples of reduce in a Sentence

The medicine reduces the risk of infection. We are trying to reduce our debt. Stricter speed limit enforcement has reduced the number of car accidents. Her prison sentence was reduced from 15 years to 10.
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Recent Examples on the Web Then there’s last week’s extravagant climate pledge: By 2030, the U.S. will reduce carbon emissions by more than three times the rate they were cut between 2005 and 2019—while China and India can keep increasing greenhouse gas releases. Karl Rove, WSJ, "Joe Biden Is the Six Trillion Dollar Man," 28 Apr. 2021 The change allowed the Falcons to reduce their salary-cap obligations for 2021 by $14 million. Mark Inabinett | Minabinett@al.com, al, "Falcons GM addresses Julio Jones trade rumors," 28 Apr. 2021 Researchers have found the benefit could reduce child poverty by nearly half -- a statistic Biden repeatedly cited when advocating for the rescue package. Maegan Vazquez, CNN, "Here's what's in Biden's $1.8 trillion American Families Plan," 28 Apr. 2021 Engineers can reduce the damage by coating the insides of the pipes with textured, water-repellant surfaces, a new study in Science Advances suggests. Joel Goldberg, Science | AAAS, "These strange salt ‘creatures’ could help unclog power plant pipes," 28 Apr. 2021 These treatments have been shown to reduce hospitalizations among patients with symptomatic cases of Covid by over 70%, and have also been shown to prevent Covid infections when administered prophylactically. Alex Knapp, Forbes, "How Drug Companies Are Expanding Access To Covid Treatments In India," 28 Apr. 2021 In the United Kingdom, another study released Wednesday found that a single dose of the Pfizer-BioNTech or Oxford-AstraZeneca vaccine may reduce transmission of the coronavirus within households by almost 50 percent. Washington Post, "Fully vaccinated seniors are 94 percent less likely to be hospitalized with covid-19," 28 Apr. 2021 Apple’s changes would probably reduce its revenue by billions of dollars annually, the social networking company has framed most of its public criticism as a defense of small businesses that rely on online ads to stay alive. NBC News, "Apple's iPhone privacy clampdown arrives after 7-month delay," 27 Apr. 2021 By 2035, the W.H.O. aims to reduce TB deaths by 95 percent. New York Times, "Want to Live to 200?," 27 Apr. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'reduce.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of reduce

14th century, in the meaning defined at transitive sense 1a

History and Etymology for reduce

Middle English, to lead back, from Latin reducere, from re- + ducere to lead — more at tow entry 1

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Time Traveler for reduce

Time Traveler

The first known use of reduce was in the 14th century

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Statistics for reduce

Last Updated

30 Apr 2021

Cite this Entry

“Reduce.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/reduce. Accessed 11 May. 2021.

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More Definitions for reduce

reduce

verb

English Language Learners Definition of reduce

: to make (something) smaller in size, amount, number, etc.
: to cause (someone) to be in a specified state or condition
: to cause (something) to be in a specified form by breaking it, burning it, etc.

reduce

verb
re·​duce | \ ri-ˈdüs How to pronounce reduce (audio) , -ˈdyüs \
reduced; reducing

Kids Definition of reduce

1 : to make smaller or less reduce expenses Reduce your speed ahead.
2 : to bring to a usually worse state The story reduced them to tears.
3 : to lower in grade or rank
4 : to change to a simpler form Reduce a fraction to its lowest terms.
5 : to lose weight by dieting

reduce

verb
re·​duce | \ ri-ˈd(y)üs How to pronounce reduce (audio) \
reduced; reducing

Medical Definition of reduce

transitive verb

1 : to correct (as a fracture or a herniated mass) by bringing displaced or broken parts back into their normal positions
2a : to bring to the metallic state by removal of nonmetallic elements reduce an ore by heat
b : deoxidize
c : to combine with or subject to the action of hydrogen
d(1) : to change (an element or ion) from a higher to a lower oxidation state
(2) : to add one or more electrons to (an atom or ion or molecule)

intransitive verb

1 : to become diminished or lessened especially : to lose weight by dieting
2 : to become reduced ferric iron reduces to ferrous iron
3 : to undergo meiosis

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re·​duce | \ ri-ˈdüs, -ˈdyüs How to pronounce reduce (audio) \
reduced; reducing

Legal Definition of reduce

1 : to make smaller
2a : to convert (a chose in action) into a chose in possession enforcement action sought to reduce to possession her property interest in the…determination of money damagesHaynes v. Contat, 643 N.E.2d 941 (1994)
b : to convert by enforcement through litigation may reduce a claim to judgment, foreclose, or otherwise enforce the claimUniform Commercial Code
reduce to practice
: to cause to undergo reduction to practice

Other Words from reduce

reducibility \ -​ˌdü-​sə-​ˈbi-​lə-​tē, -​ˌdyü-​ How to pronounce reduce (audio) \ noun
reducible \ -​ˈdü-​sə-​bəl, -​ˈdyü-​ How to pronounce reduce (audio) \ adjective
reducibly adverb
reduction \ ri-​ˈdək-​shən How to pronounce reduce (audio) \ noun

Comments on reduce

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