duplicate

adjective
du·​pli·​cate | \ ˈdü-pli-kət How to pronounce duplicate (audio) also ˈdyü-\

Definition of duplicate

 (Entry 1 of 3)

1 : consisting of or existing in two corresponding or identical parts or examples duplicate invoices
2 : being the same as another duplicate copies

duplicate

verb
du·​pli·​cate | \ ˈdü-pli-ˌkāt How to pronounce duplicate (audio) also ˈdyü-\
duplicated; duplicating

Definition of duplicate (Entry 2 of 3)

transitive verb

1 : to make double or twofold
2a : to make a copy of a cell duplicates itself when it divides
b : to produce something equal to trying to duplicate last year's success
c : to do over or again often needlessly duplicated effort

intransitive verb

: to become duplicated also : repeat

duplicate

noun
du·​pli·​cate | \ ˈdü-pli-kət How to pronounce duplicate (audio) also ˈdyü-\

Definition of duplicate (Entry 3 of 3)

1a : either of two things exactly alike and usually produced at the same time or by the same process
b : an additional copy of something (such as a book or stamp) already in a collection
2 : one that resembles or corresponds to another : counterpart
3 : two identical copies used in the phrase in duplicate

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Other Words from duplicate

Verb

duplicative \ ˈdü-​pli-​ˌkā-​tiv How to pronounce duplicative (audio) also  ˈdyü-​ \ adjective

Choose the Right Synonym for duplicate

Noun

reproduction, duplicate, copy, facsimile, replica mean a thing made to closely resemble another. reproduction implies an exact or close imitation of an existing thing. reproductions from the museum's furniture collection duplicate implies a double or counterpart exactly corresponding to another thing. a duplicate of a house key copy applies especially to one of a number of things reproduced mechanically. printed 1000 copies of the lithograph facsimile suggests a close reproduction often of graphic matter that may differ in scale. a facsimile of a rare book replica implies the exact reproduction of a particular item in all details a replica of the Mayflower but not always in the same scale. miniature replicas of classic cars

Examples of duplicate in a Sentence

Adjective

I began receiving duplicate copies of the magazine every month. I had a duplicate key made.

Verb

She duplicated the video to give to family and friends. Unfortunately, the results of the first study could not be duplicated.

Noun

In case you lose your keys, keep a set of duplicates somewhere safe. doll carriages that are duplicates of baby carriages
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Recent Examples on the Web: Adjective

And the buyer would know there hasn’t been a duplicate title issued that would make the title the buyer is holding invalid. cleveland.com, "What if you sell your car, but the buyer doesn’t transfer the title out of your name? Money Matters," 14 Aug. 2019 The spokesperson said the database contains many duplicate entries and the company estimates the number of users impacted is about half of what TechCrunch reported. Donie O'sullivan, CNN, "Hundreds of millions of phone numbers once tied to Facebook accounts posted online," 4 Sep. 2019 On most occasions, Wilkerson pretended to be the victims and called their banks, seeking to obtain control of their accounts and obtain new or duplicate credit cards in their names, according to the documents. Andrew Clark, Indianapolis Star, "Fishers woman fraudulently purchased beauty products, plane tickets, court documents say," 14 Aug. 2019 Adding new investment capabilities would give Legg Mason’s sales teams more to sell and reducing duplicate functions would lower expenses. Justin Baer, WSJ, "There Is No Easy Fix for Legg Mason and Other Money Managers," 17 June 2019 Much of that would come from eliminating duplicate jobs or spending in accounting, technology, marketing, human resources and the like, according to New Media. Washington Post, "Is bigger better? Gannett merger will test whether local news can be saved," 9 Aug. 2019 Jose Lopez Rosado, 51, allegedly applied for a duplicate Massachusetts driver’s license in February 2016 using someone else’s Social Security number. Sofia Saric, BostonGlobe.com, "Worcester man pleads guilty to identity theft almost 25 years after escaping from Puerto Rico prison," 5 Aug. 2019 Haris, who was behind the DMV counter at the time, recalled Richey walking up and demanding a duplicate ID, the outlet reports. Joelle Goldstein, PEOPLE.com, "Kansas City Woman Allegedly Opens Fire Outside of DMV After Getting Angry Over the Slow Line," 10 July 2019 Some customers had trouble reloading money onto their cards, received numerous duplicate cards in the mail and were unhappy that Ventra was also engineered to be a debit card. Eric Zorn, chicagotribune.com, "Column: How I stopped worrying and learned to love the once-despised Ventra transit card," 20 June 2019

Recent Examples on the Web: Verb

In other words, duplicating the technology behind the Billie so it can be applied everywhere is a thrilling possibility, but that, too, would weigh heavily on the environment. Ronna Chao, Quartz, "I helped create a unique upcycling system—but it won’t solve fashion’s waste problem," 10 Sep. 2019 In a staff report, City Manager John Pietig raised concerns of duplicating efforts already taken by the South Orange County Wastewater Authority and the city’s own Public Works Department on ocean health and pesticides, respectively. Lilly Nguyen, Daily Pilot, "Laguna Beach council to review permits for Bluebird Canyon Farms," 7 Sep. 2019 Of note: For the first time since 2014, the Brazilian and Colombian national teams will return to Hard Rock Stadium with the hopes of duplicating their previous historic turnout. Brett Shweky, sun-sentinel.com, "What you should know about the International Friendly between Brazil and Colombia this week," 5 Sep. 2019 Step 6: Repeat throughout the length of the hair and duplicate on the other side for a double bubble pony look, or just keep centered for one larger bubble pony. Jennifer Ford, Essence, "NYFW Get The Look: The Festival Hair At Chromat," 9 Sep. 2019 The Bay Bridge’s chief engineer, Charles H. Purcell, had been appointed director of the California Department of Public Works, and saw efficiency in duplicating his own design. Peter Hartlaub, SFChronicle.com, "See the ‘twin’ Bay Bridge that nearly happened despite outrage from SF," 6 Sep. 2019 The often imitated, never duplicated tradition starts at the Athletic Complex on S. Donahue Drive will start, as always, two hours before kickoff. Jeremy Henderson, al, "Auburn Gameday: Complete Fan Guide for Auburn vs. Tulane," 5 Sep. 2019 District officials could consider whether the charter would undermine or duplicate a program already offered in that area. Howard Blumestaff Writer, Los Angeles Times, "Charter school compromise could intensify L.A.'s school board battles," 3 Sep. 2019 To pay tribute to that show, Jersey will perform a set list at Fall Fest duplicating the one Springsteen played that night 44 years ago. cleveland.com, "University Heights Fall Fest set for Oct. 6; Democracy Day is Sept. 9 in Shaker Heights; more: Press Run," 30 Aug. 2019

Recent Examples on the Web: Noun

Securities trading produces public records, and fine art doesn't grapple with duplicates, but hundreds of copies of the same baseball cards might exist. oregonlive.com, "Baseball card collectors suspect rampant fraud in their hobby," 19 July 2019 Securities trading produces public records, and fine art doesn't grapple with duplicates, but hundreds of copies of the same baseball cards might exist. Jacob Bogage, courant.com, "Baseball card collectors suspected rampant fraud in their hobby. Now the FBI is investigating.," 18 July 2019 The department leaves a 90-day window to address complaints of rats, and any complaints made again within that time are classified as duplicate, Lanza explained. Morgan Hines, USA TODAY, "New York City removed 110 trash cans. Now garbage is overflowing and the rats are 'running wild'," 17 July 2019 Brush edges with water and place a duplicate cutout on top. Crimp edges with a fork. Tara Bench, Country Living, "Hats and Bats Chocolate-Peanut Butter Tarts," 6 Sep. 2019 Bill Anders has already taken that picture on Apollo 8, so no point in wasting film on a duplicate. National Geographic, "Dear Columbia: Apollo 11 astronaut Michael Collins says thanks," 19 July 2019 Gurriel's 13th homer of the season was nearly a duplicate of his 12th, which occurred the night before. Brent Zwerneman, Houston Chronicle, "Gerrit Cole, Astros shut out Angels," 6 July 2019 The program produced 84,000 duplicate records and more than twice that number with political party mistakes, according to an audit this month. San Diego Union-Tribune, "Can a Silicon Valley entrepreneur fix California’s troubled DMV? Newsom is banking on it," 25 Aug. 2019 The program produced 84,000 duplicate records and more than twice that number with political party mistakes, according to an audit this month. Los Angeles Times, "Can a Silicon Valley entrepreneur fix California’s troubled DMV? Newsom is banking on it," 25 Aug. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'duplicate.' 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 duplicate

Adjective

15th century, in the meaning defined at sense 1

Verb

15th century, in the meaning defined at transitive sense 1

Noun

1532, in the meaning defined at sense 1a

History and Etymology for duplicate

Adjective

Middle English, from Latin duplicatus, past participle of duplicare to double, from duplic-, duplex

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Statistics for duplicate

Last Updated

26 Sep 2019

Look-up Popularity

Time Traveler for duplicate

The first known use of duplicate was in the 15th century

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More Definitions for duplicate

duplicate

adjective

English Language Learners Definition of duplicate

 (Entry 1 of 3)

: exactly the same as something else : made as an exact copy of something else

duplicate

verb

English Language Learners Definition of duplicate (Entry 2 of 3)

: to make an exact copy of (something)
: to produce (something) in another form

duplicate

noun

English Language Learners Definition of duplicate (Entry 3 of 3)

: something that is exactly the same as something else : an exact copy of something else

duplicate

adjective
du·​pli·​cate | \ ˈdü-pli-kət How to pronounce duplicate (audio) , ˈdyü-\

Kids Definition of duplicate

 (Entry 1 of 3)

: exactly the same as another duplicate copies

duplicate

verb
du·​pli·​cate | \ ˈdü-pli-ˌkāt How to pronounce duplicate (audio) , ˈdyü-\
duplicated; duplicating

Kids Definition of duplicate (Entry 2 of 3)

: to make an exact copy of

duplicate

noun
du·​pli·​cate | \ ˈdü-pli-kət How to pronounce duplicate (audio) , ˈdyü-\

Kids Definition of duplicate (Entry 3 of 3)

: a thing that is exactly like another

duplicate

intransitive verb
du·​pli·​cate | \ ˈd(y)ü-pli-ˌkāt How to pronounce duplicate (audio) \
duplicated; duplicating

Medical Definition of duplicate

: to become duplicate : replicate DNA in chromosomes duplicates

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duplicate

transitive verb
du·​pli·​cate | \ ˈdü-pli-ˌkāt, ˈdyü- How to pronounce duplicate (audio) \
duplicated; duplicating

Legal Definition of duplicate

 (Entry 1 of 2)

: to make a duplicate of

Other Words from duplicate

duplicative \ -​ˌkā-​tiv How to pronounce duplicative (audio) \ adjective

duplicate

noun
du·​pli·​cate | \ ˈdü-pli-kət, ˈdyü- How to pronounce duplicate (audio) \

Legal Definition of duplicate (Entry 2 of 2)

: either of two things exactly alike and often produced at the same time specifically : a counterpart identified in the Federal Rules of Evidence Rule 1001 as produced by the same impression as the original or from the same matrix or by means of photography, mechanical, or electronic rerecording, chemical reproduction, or another technique which accurately reproduces the original — compare original

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