deduper

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noun

A deduplicator.

OriginEnglish dedupe ← Latin duplicātus ← Proto-Italic *dē →
Scrabble 11
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Meanings

noundeduper (plural dedupers)

plural dedupers

  1. informalA deduplicator.

    The deduper compares these hashed representations along with metadata to determine exact and near dupes.

    2013, K. D. Ashley, Legal Knowledge and Information Systems: JURIX 2013
    1 more example

    These are different products, but use the same kind of logic as the companies' web2lead dedupers. Different deduping tools will import these leads in different ways, so it's not possible to describe a universal procedure here.

    2009, David Taber, Salesforce.com Secrets of Success

Origin

  1. Proto-Indo-European*de
  2. Proto-Indo-European*déh₁
  3. Proto-Italic*dē
  4. Latindē
  5. Latindē-
  6. Englishde-
  7. Latinduplex
  8. Latinduplicātus
  9. Englishduplicateclip.
  10. Englishdupe
  11. Englishdedupe
  12. Englishdeduper

From dedupe + -er.

Full word history & related roots →
Cite this entry
APA

deduper. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/deduper

MLA

“deduper.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/deduper. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “deduper,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/deduper.

Source: deduper on Wiktionary, CC BY-SA 4.0.