duplicate

adjective
du·pli·cate | \ˈdü-pli-kət 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 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 | \-kət \

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 \-ˌkā-tiv \ 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

Her campaign also submitted three duplicate signatures. Daniel Bice, Milwaukee Journal Sentinel, "Watertown police investigate allegations candidate forged signatures on nomination papers," 5 June 2018 The earlier issue with duplicate transactions has been resolved. Jordan Cutler-tietjen, sacbee, "Wells Fargo apologizes after customers see double charges and transaction problems," 16 June 2018 That estimate does not include duplicate accounts, which users sometimes create by accident or to have separate professional and personal profiles. The Washington Post, OregonLive.com, "Facebook's crackdown on fake accounts isn't working for everyone," 5 May 2018 Voatz says its technology prevents duplicate votes in the same way a bitcoin can’t be duplicated. Andy Rosen, BostonGlobe.com, "Will blockchain change the way we buy everything, and even the way we vote?," 12 June 2018 Created by Justin Marks, Starz's Counterpart, which premiered Dec. 10, sees Simmons' Howard (the mild one) uncover a world where duplicate versions of every person on Earth are living different lives. Rebecca Ford, The Hollywood Reporter, "'Counterpart's' J.K. Simmons, Justin Marks on Challenges of One Actor in Dual Roles," 11 June 2018 Have duplicate product bottles if necessary, for efficiency, or just put the sparkly extras in a separate basket to add to your normal routine. Jennifer Adams, Philly.com, "Ask Jennifer Adams: Spa-inspired product storage when you think there's none," 8 June 2018 Through audits, officials identified more than 100 employees who had documentation issues, such as duplicate social security numbers and identification belonging to other people, Francis told WNWO. Samantha Schmidt, courant.com, "‘Utter chaos’: ICE arrests 114 workers in immigration raid at Ohio gardening company," 6 June 2018 The people of the duplicate world were once the same people as those on Prime World. Gregory Ellwood, latimes.com, "It gets complicated on 'Counterpart' but worth the effort, says J.K. Simmons," 25 May 2018

Recent Examples on the Web: Verb

Instead, the Pelicans are stuck trying to fill in the gaps, as always, and left to pray that Davis and the resurgent Holiday can duplicate their outstanding 2018 campaigns in an even tougher Western Conference. Ben Golliver, SI.com, "2018 NBA Free Agency: The Early Winners And Losers," 5 July 2018 This study was designed to help the majors understand and duplicate the success of independent black labels like Motown and Stax. Gail Mitchell, Billboard, "Music Industry Veteran David Linton Talks Black Executive Inclusion: 'Let's Get It Right This Time'," 1 June 2018 His ability to creatively dribble the basketball is so singular that The Boston Globe found last year that video game makers had trouble duplicating it. New York Times, "Kyrie Irving Doesn’t Know if the Earth Is Round or Flat. He Does Want to Discuss It.," 8 June 2018 Vaccarello has the ability, perhaps more than anyone in his position in recent memory who's tried, to revisit themes that have defined the house—animal prints, Marrakech, all manner of embroidery—without simply duplicating them. Matt Sebra, GQ, "Watch Saint Laurent's Epic New York City Fashion Show Right Here," 6 June 2018 ConocoPhillips bought more acreage in Louisiana this year with the intent of taking its successes in South Texas and duplicating it there. Jordan Blum, San Antonio Express-News, "ConocoPhillips turns back to the Eagle Ford," 20 May 2018 ConocoPhillips bought more acreage in Louisiana this year with the intent of taking its successes in South Texas and duplicating it there. Jordan Blum, Houston Chronicle, "ConocoPhillips going slow in Permian, focused on Eagle Ford," 16 May 2018 Their success was dependent upon each other and the Ravens haven’t been able to duplicate it. Mike Preston, baltimoresun.com, "Mike Preston: Ravens need a third-down passing threat out of the backfield," 9 Apr. 2018 His paintings are accessible to the masses who try to duplicate his serene landscapes — and who know that making art with Bob Ross is a journey, not a destination. Julia Lyon, Washington Post, "People are waiting in line. Is it Hamilton? No, it’s Bob Ross on YouTube.," 13 July 2018

Recent Examples on the Web: Noun

The complaint by the American Civil Liberties Union of Kansas alleges ‘‘reckless maintenance’’ of the Interstate Voter Registration Crosscheck Program, which compares voter registration lists among participating states to look for duplicates. Roxana Hegeman, BostonGlobe.com, "Lawsuit claims Kansas official exposed private voter data," 20 June 2018 In an open area to the side of the pavilion lie duplicates of all the inscribed monuments. New York Times, "A Memorial to the Lingering Horror of Lynching," 1 June 2018 Most automakers operate a single line to make two, three or sometimes four different vehicles, because using a second line would force them to invest in duplicate tooling and cut into profit margins. Neal E. Boudette, New York Times, "Can Elon Musk and Tesla Reinvent the Way Cars Are Made?," 30 June 2018 Three-fourths of these exposures were in children aged 12 or younger, most commonly as a result of a medication administration error, such as a duplicate dose. Philly.com, "The dangers of misusing ADHD medications," 25 June 2018 Second Measure has nearly 40 employees, and already there are six pairs of duplicate names. Georgia Wells, WSJ, "The One-Name Email, a Silicon Valley Status Symbol, Is Wreaking Havoc," 8 June 2018 Many states, including Maryland, already use recognition software at the DMV as a way to spot duplicates and potentially fraudulent identities in the system. Russell Brandom, The Verge, "How facial recognition helped police identify the Capital Gazette shooter," 29 June 2018 Some pull from Craigslist, a popular source of rental listings — including duplicate and fraudulent ones. Kathleen Pender, SFChronicle.com, "Why the average Bay Area rent is so hard to pin down," 21 June 2018 That portion of the roster is already well covered, often in duplicate or triplicate. Ira Winderman, Sun-Sentinel.com, "ASK IRA: Do the Heat need a pass-first presence to maximize their roster?," 6 June 2018

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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Learn More about duplicate

Phrases Related to duplicate

in duplicate

Statistics for duplicate

Last Updated

10 Oct 2018

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, ˈdyü-\

Kids Definition of duplicate

 (Entry 1 of 3)

: exactly the same as another duplicate copies

duplicate

verb
du·pli·cate | \ˈdü-pli-ˌkāt, 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, 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 \
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- \
duplicated; duplicating

Legal Definition of duplicate 

(Entry 1 of 2)

: to make a duplicate of

Other Words from duplicate

duplicative \-ˌkā-tiv \ adjective

duplicate

noun
du·pli·cate | \ˈdü-pli-kət, ˈdyü- \

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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