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
3
: a part of a chromosome in which the genetic material is repeated
also : the process of forming a duplication

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.
The system helps prevent duplication and tracks authorized names, according to LegalClarity. Alex Perry, Cincinnati Enquirer, 6 Mar. 2026 The report argues that centralization would reduce duplication, improve governance and allow the city to reassign staff to areas where benchmarks indicate shortages. Chaya Tong, Austin American Statesman, 4 Mar. 2026 The Justice Department has said materials may have been excluded because of privilege, duplication or ongoing investigations, while critics argue the omissions may violate the transparency law’s requirement that records not be withheld for political sensitivity or reputational harm. Nik Popli, Time, 28 Feb. 2026 The first hearing, on government duplication, is tentatively scheduled for mid-March, with another related to the IRS in April. David Sivak, The Washington Examiner, 26 Feb. 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

Cite this Entry

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

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

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

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