REDUCEの定義と意味 - メリアム・ウェブスター

REDUCE Definition & Meaning - Merriam-Webster Est. 1828 Dictionary Definition Definition Synonyms Synonym Chooser Example Sentences Word History Phrases Containing Rhymes Entries Near Cite this Entry Citation Kids Definition Kids Medical Definition Medical Legal Definition Legal More from M-W Show more Show more Citation Kids Medical Legal More from M-W Save Word To save this word, you'll need to log in. Log In reduce verb re·​duce ri-ˈdüs -ˈdyüs reduced ; reducing Synonyms of reduce Take our 3 question quiz on reduce Simple Definition A Simple Definition is available from our Learner's Dictionary to help you understand the meaning faster. transitive verb 1 a : 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 peoples who were reduced to small reservations d : to make shorter : abridge Take our 3 question quiz on reduce 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 4 a : to force to capitulate b : force , compel 5 a : 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 7 a : to lower in grade or rank : demote b : to lower in condition or status : downgrade 8 a : to diminish in strength or density b : to diminish in value 9 a (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 11 a : 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 1 a (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 reducer noun reducibility ri-ˌdü-sə-ˈbi-lə-tē -ˌdyü- noun reducible ri-ˈdü-sə-bəl -ˈdyü- adjective reducibly ri-ˈdü-sə-blē adverb Synonyms of reduce Relevance demote degrade See All Synonyms & Antonyms in Thesaurus 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. Recent Examples on the Web Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback . Doctors suggested that the data do not support an early change in therapy and instead introduce unknown risks by speeding up the treatment sequence, potentially reducing time on otherwise effective options, noted Jefferies analysts. — Elsa Ohlen, CNBC , 1 May 2026 Trump has signed executive orders to reduce housing regulatory burdens and help smaller banks provide mortgages. — ABC News , 1 May 2026 That hybrid design also reduces wear on joints and improves energy efficiency over long distances. — Kurt Knutsson, FOXNews.com , 1 May 2026 To reduce gaps in funding and improve reserve levels long-term, the city manager will present options to consider at upcoming budget study sessions, which are open to the public. — Mona Darwish, Oc Register , 1 May 2026 See All Example Sentences for reduce Word History Etymology Middle English, to lead back, from Latin reducere , from re- + ducere to lead — more at tow entry 1 First Known Use 14th century, in the meaning defined at transitive sense 1a Time Traveler The first known use of reduce was in the 14th century See more words from the same century Phrases Containing reduce reduce (someone) to silence reduce (someone) to tears reduce (something) to ashes Rhymes for reduce abstruse abuse adduce atreus caboose cayuse conduce deduce diffuse disuse excuse footloose See All Rhymes for reduce Browse Nearby Words redub reduce reduceable See all Nearby Words Cite this Entry Style MLA Chicago APA Merriam-Webster “Reduce.” Merriam-Webster.com Dictionary , Merriam-Webster, https://www.merriam-webster.com/dictionary/reduce. Accessed 6 May. 2026. Copy Citation Kids Definition reduce verb re·​duce ri-ˈd(y)üs reduced ; reducing 1 : to make smaller in size, amount, or number reduce the number of accidents especially : to lose weight by dieting 2 : to bring to a specified state or condition 3 a : to lower in grade or rank : demote b : to be driven by poverty or need was reduced to begging c : to lessen the strength of 4 : to change an arithmetic expression to a simpler form without changing its value reduce a fraction to lowest terms 5 : to break down (as by crushing or grinding) reduce stone to powder 6 a : deoxidize b : to combine with or subject to the action of hydrogen c : to add one or more electrons to (an atom or ion or molecule) reducer noun reducibility -ˌd(y)ü-sə-ˈbil-ət-ē noun reducible -ˈd(y)ü-sə-bəl adjective Medical Definition reduce verb re·​duce ri-ˈd(y)üs reduced ; reducing transitive verb 1 : to correct (as a fracture or a herniated mass) by bringing displaced or broken parts back into their normal positions 2 a : 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 Legal Definition reduce transitive verb re·​duce ri-ˈdüs, -ˈdyüs reduced ; reducing 1 : to make smaller 2 a : 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 damages — Haynes 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 claim — Uniform Commercial Code reducibility -ˌdü-sə-ˈbi-lə-tē, -ˌdyü- noun reducible -ˈdü-sə-bəl, -ˈdyü- adjective reducibly adverb reduction ri-ˈdək-shən noun More from Merriam-Webster on reduce Nglish: Translation of reduce for Spanish Speakers Last Updated: 2 May 2026 - Updated example sentences Love words? Need even more definitions? Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free! Merriam-Webster unabridged More from Merriam-Webster Word of the Day flamboyant See Definitions and Examples » Get Word of the Day daily email! Popular in Grammar & Usage See More More Commonly Mispronounced Words Regarding the Incorrect Use of 'Decimate' 5 Verbal Slip Ups and Language Mistakes Is that lie 'bald-faced' or 'bold-faced'? 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