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

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 Three people — two in Mequon and one in West Allis — said they were mailed duplicate ballots. Daphne Chen, Catharina Felke, Milwaukee Journal Sentinel, "'They should have done something': Broad failures fueled Wisconsin's absentee ballot crisis, investigation shows," 21 Apr. 2020 Senators on both sides have been coordinating with their leaders to avoid duplicate questions. Tim Darnell, ajc, "Trump impeachment: Here’s how the trial’s Q&A sessions will work," 29 Jan. 2020 In Friday’s filing, Blix cited examples where Apple has allowed duplicate apps from the same developer. Reed Albergotti, Washington Post, "Apple suppressed competitors in its App Store--until it got caught, a lawsuit alleges," 20 Dec. 2019 Concerns about students at risk of suicide was the top category, with 447 tips, followed by duplicate tips, bullying, drug use and general threats. Meg Wingerter, The Denver Post, "Safe2Tell tips continue to increase, with suicide again the top concern in November," 10 Dec. 2019 Khosrowshahi said everyone has to play a part in identifying and eliminating duplicate work and taking actions when expectations aren't met. Cathy Bussewitz, USA TODAY, "Uber lets go of 350 more employees across several departments in last wave of layoffs," 14 Oct. 2019 Facebook also said that much of the data in question involved duplicate information, and that the total number of phone numbers that were able to be found online was more likely half the amount mentioned in the TechCrunch report. Rex Crum, The Mercury News, "More than 400 million Facebook users’ phone numbers were possibly available online, report says," 5 Sep. 2019 Fees for duplicate licenses or IDs will be waived, officials said. USA TODAY, "Stolen turtle, bald eagles, peregrine falcons, amazing avalanche survivor: News from around our 50 states," 6 Mar. 2020 Drivers also must visit a DMV office to get a new or duplicate driver license, some license renewals, new license plates, complex vehicle registrations or title transfers and off-highway permits. Kathleen Pender, SFChronicle.com, "DMV offices to stay open during during Bay Area shutdown; grace period likely for extensions," 16 Mar. 2020 Recent Examples on the Web: Verb And the McAfee researchers were only able to trick the system by duplicating a certain sequence involving when a driver-assist function was turned on and encountered the altered speed limit sign. Ryan Beene, Bloomberg.com, "Electrical Tape on Sign Fooled a Tesla Into Speeding in Test," 13 May 2020 Take some time to clear unused apps, obsolete contacts, duplicate photos, and other unnecessary items from your phones, tablets, and computers. Patricia Doherty, Travel + Leisure, "12 Home Cleaning Hacks From Hotel Housekeeping and Professional Organizers," 5 May 2020 If Higgins and Burrow can duplicate or surpass the same success that Johnson and Palmer had, the Bengals found themselves another dynamic duo. Tyler Dragon, Cincinnati.com, "Bengals notebook: Virtual offseason begins, Tee Higgins' jersey choice brings nostalgia," 27 Apr. 2020 The number includes duplicate claims – the labels were based on 4,000 fact checks. Barbara Ortutay And Amanda Seitz, USA TODAY, "Did you like a hoax? Facebook to warn users who 'liked' coronavirus hoaxes," 17 Apr. 2020 The number includes duplicate claims — the labels were based on 4,000 fact checks. Barbara Ortutay, Amanda Seitz, Anchorage Daily News, "Facebook to alert users who ‘liked’ coronavirus hoax posts," 16 Apr. 2020 The program also uses tricks to speed up the search, like occasionally exchanging algorithms between populations to prevent any evolutionary dead ends, and automatically weeding out duplicate algorithms. Edd Gent, Science | AAAS, "Artificial intelligence is evolving all by itself," 13 Apr. 2020 The Panthers’ iconoclastic style has often been imitated, but their mission to liberate Black people has never truly been duplicated. Danielle Young, Essence, "The Black Panthers' Iconic Uniforms Still Reign Supreme," 10 Apr. 2020 That average duplicated the 2017 result and was below the 281 national average. Cynthia Howell, Arkansas Online, "State's 4th, 8th grade Report Card scores still lag," 30 Nov. 2019 Recent Examples on the Web: Noun Microsoft estimates that around 73% of passwords are duplicates. Rishi Iyengar, CNN, "How your passwords can end up for sale on the dark web," 6 May 2020 In 2013, the inspector general for Afghan reconstruction reported that 43 percent of the Department of Defense’s records for small arms sent to Afghanistan were missing information or were duplicates. New York Times, "An Afghan Killed 2 Americans. The U.S. Government Issued the Gun.," 17 Feb. 2020 And that's not to mention all the duplicate services the city and county have with Green Township, Elmwood Place, Norwood, Mariemont and the 40-some other local governments across the county. Jason Williams, Cincinnati.com, "PX column: No more city vs. county? Yes, please. Why pandemic should force Cincinnati, Hamilton County governments to finally share services," 10 Apr. 2020 Recessive genes only manifest as a noticeable phenotype when both of an individual’s two copies of a gene are the same, so the duplicate genes passed down through inbreeding make a recessive trait statistically more likely to surface. Lila Thulin, Smithsonian, "The Distinctive ‘Habsburg Jaw’ Was Likely the Result of the Royal Family’s Inbreeding," 4 Dec. 2019 Technology has been miniaturized to allow for duplicates to avoid errors. Ashley Strickland, CNN, "These are the new spacesuits for the first woman and next man on the moon," 15 Oct. 2019 This kind of duplicate work contributes to physician frustration and burnout. Cassandra Willyard, Scientific American, "Can AI Fix Electronic Medical Records?," 1 Feb. 2020 Department spokesman Christopher Thomas said initial accounts of at least six victims Thursday morning may have been because of duplicate reports. BostonGlobe.com, "Meanwhile, White House spokesman Judd Deere said President Trump is monitoring the reports.," 14 Nov. 2019 Don’t count on picking up the Orchard Supply Hardware sign or one of the collection’s historical paintings; the items for sale are mostly textiles or duplicates (or triplicates) of other items in the collection in varying condition. Sal Pizarro, The Mercury News, "Viva CalleSJ activating San Jose streets, parks on Sunday," 19 Sep. 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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Time Traveler for duplicate

Time Traveler

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

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Statistics for duplicate

Last Updated

22 May 2020

Cite this Entry

“Duplicate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/duplicate. Accessed 31 May. 2020.

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More Definitions for duplicate

duplicate

adjective
How to pronounce duplicate (audio)

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
How to pronounce duplicate (audio)

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
How to pronounce duplicate (audio)

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
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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