duplication

noun

du·​pli·​ca·​tion ˌdü-pli-ˈkā-shən How to pronounce duplication (audio)
also ˌdyü-
Synonyms of duplicationnext
1
a
: the act or process of duplicating
b
: the quality or state of being duplicated
2
: duplicate, counterpart
3
: a part of a chromosome in which the genetic material is repeated
also : the process of forming a duplication

Synonyms of duplication

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Examples of duplication in a Sentence

He sent the manuscript out for duplication. Please eliminate duplication when combining the lists.
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.
None of them had even a single change in the stretch of DNA where the duplication of the virus’s genome starts. — ArsTechnica, 6 Aug. 2026 In order to receive a payment, claimants must prove that 1) Equifax sent a credit report to a third party showing a duplication collection amount, or 2) the duplicate collection account was one of the reasons the claimant was denied credit. — Jason Cohen, PC Magazine, 5 Aug. 2026 Vaughan emphasized that partnering with Clyde Capital now reduces both cost and duplication of work because the developer already has environmental studies in hand. — Noah Daly august 5, Idaho Statesman, 5 Aug. 2026 Second, implement automated detection of existing assets to prevent duplication. — Susan Laine, Forbes.com, 31 July 2026 See All Example Sentences for duplication

Word History

First Known Use

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

Time Traveler
The first known use of duplication was in the 15th century

Rhymes for duplication

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Browse Nearby Words

duplicating machine
duplication
duplication of the cube
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Cite this Entry

“Duplication.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/duplication. Accessed 11 Aug. 2026.

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Kids Definition

duplication

noun
du·​pli·​ca·​tion ˌd(y)ü-pli-ˈkā-shən How to pronounce duplication (audio)
1
a
: an act or process of duplicating
b
: the state of being duplicated
2
: duplicate entry 3

Medical Definition

duplication

noun
du·​pli·​ca·​tion ˌd(y)ü-pli-ˈkā-shən How to pronounce duplication (audio)
1
: the act or process of duplicating : the quality or state of being duplicated
2
: a part of a chromosome in which the genetic material is repeated
also : the process of forming a duplication

Legal Definition

duplication

noun
du·​pli·​ca·​tion ˌdü-pli-ˈkā-shən, ˌdyü- How to pronounce duplication (audio)
: the act, process, or result of duplicating

More from Merriam-Webster on duplication

Nglish: Translation of duplication for Spanish Speakers

Britannica.com: Encyclopedia article about duplication

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