What does duplicate mean?

Definitions for duplicate
ˈdu plɪ kɪt, ˈdyu-; -ˌkeɪtdu·pli·cate

This dictionary definitions page includes all the possible meanings, example usage and translations of the word duplicate.

Princeton's WordNet

  1. extra, duplicatenoun

    something additional of the same kind

    "he always carried extras in case of an emergency"

  2. duplicate, duplicationadjective

    a copy that corresponds to an original exactly

    "he made a duplicate for the files"

  3. duplicateadjective

    identically copied from an original

    "a duplicate key"

  4. duplicate, matching, twin(a), twinnedverb

    being two identical

  5. duplicate, reduplicate, double, repeat, replicateverb

    make or do or perform again

    "He could never replicate his brilliant performance of the magic trick"

  6. twin, duplicate, parallelverb

    duplicate or match

    "The polished surface twinned his face and chest in reverse"

  7. duplicateverb

    make a duplicate or duplicates of

    "Could you please duplicate this letter for me?"

  8. double, duplicateverb

    increase twofold

    "The population doubled within 50 years"


  1. duplicatenoun

    One that resembles or corresponds to another; an identical copy.

    This is a duplicate, but a very good replica.

  2. duplicateverb

    to make a copy of

    If we duplicate the information, are we really accomplishing much?

  3. duplicateverb

    to do repeatedly; to do again

    You don't need to duplicate my efforts.

  4. duplicateverb

    to produce something equal to

    He found it hard to duplicate the skills of his wife.

  5. duplicateadjective

    being the same as another; identical. This may exclude the first identical item in a series, but usage is inconsistent.

    This is a duplicate entry.

  6. Etymology: From duplicatus (past participle of duplicare).

Samuel Johnson's Dictionary

  1. Duplicateadjective

    Duplicate proportion is the proportion of squares. Thus, in a rank of geometrical proportions, the first term to the third is said to be in a duplicate ratio of the first to the second, or as its square is to the square of the second: so in 2, 4, 8, 16, the ratio of 2 to 8 is a duplicate of that of 2 to 4; or as the square of 2 to the square of4. Phillips. John Harris Nathan Bailey

    Etymology: from the verb.

    It has been found, that the attraction is almost reciprocally in a duplicate proportion of the distance of the middle of the drop from the concourse of the glasses, viz. reciprocally in a simple proportion, by reason of the spreading of the drop, and its touching each glass in a larger surface; and again reciprocally in a simple proportion, by reason of the attractions growing stronger within the same quantity of attracting surface. Isaac Newton, Opt.

  2. Duplicatenoun

    Another correspondent to the first; a second thing of the same kind, as a transcript of a paper.

    Nothing is more needful for perfecting the natural history of bodies than the subjecting them to the fire; to which end I have reserved duplicates of the most considerable. John Woodward.

  3. To DUPLICATEverb

    Etymology: duplico, Latin.

    And some alterations in the brain duplicate that which is but a single object to our undistempered sentiments. Joseph Glanvill.


  1. duplicate

    A duplicate is a copy or replica of an original item or instance, exactly resembling the original one in every detail. It can refer to objects, documents, data, or any other items. In a broader context, it also refers to the act of making such copies.

Webster Dictionary

  1. Duplicateadjective

    double; twofold

  2. Duplicatenoun

    that which exactly resembles or corresponds to something else; another, correspondent to the first; hence, a copy; a transcript; a counterpart

  3. Duplicatenoun

    an original instrument repeated; a document which is the same as another in all essential particulars, and differing from a mere copy in having all the validity of an original

  4. Duplicateverb

    to double; to fold; to render double

  5. Duplicateverb

    to make a duplicate of (something); to make a copy or transcript of

  6. Duplicateverb

    to divide into two by natural growth or spontaneous action; as, infusoria duplicate themselves

  7. Etymology: [L. duplicatus, p. p. of duplicare to double, fr. duplex double, twofold. See Duplex.]


  1. Duplicate

    Duplicate is an Indian Bollywood action comedy film released on May 8, 1998. The movie was directed by Mahesh Bhatt and stars Shahrukh Khan in a double role opposite Juhi Chawla and Sonali Bendre. It was produced by Karan Johar's Dharma Productions and marks Shahrukh's first of five collaborations with the production company. It didn't perform too well at the box office and was rated as a below average performer by boxoffice-india.

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How to say duplicate in sign language?


  1. Chaldean Numerology

    The numerical value of duplicate in Chaldean Numerology is: 8

  2. Pythagorean Numerology

    The numerical value of duplicate in Pythagorean Numerology is: 1

Examples of duplicate in a Sentence

  1. Damijan Merlak:

    At present we are setting up a duplicate of the whole infrastructure with experts in San Francisco which should be finished within 24 hours. Then we will be able to resume our services.

  2. Andrew A. Rooney:

    Making duplicate copies and computer printouts of things no one wanted even one of in the first place is giving America a new sense of purpose.

  3. Helen Rowland:

    A man's desire for a son is usually nothing but the wish to duplicate himself in order that such a remarkable pattern may not be lost to the world.

  4. Jason Carter:

    We won't duplicate other effective efforts.

  5. Brian Clauss:

    No duplicate copies of these records were ever maintained, nor were microfilm copies produced, neither were any indexes created prior to the fire.

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Translations for duplicate

From our Multilingual Translation Dictionary

  • копие, правя копиеBulgarian
  • duplicar, duplicatCatalan, Valencian
  • kopie, zdvojit, duplikátCzech
  • Kopie, Duplikat, vervielfältigenGerman
  • αντίγραφοGreek
  • duplicarSpanish
  • kaksoiskappale, jäljennös, jäljentää, kopio, kahdentaa, kopioidaFinnish
  • duplicata, dupliquer, double, copier, copieFrench
  • duplicare, duplicatoItalian
  • 複写, デュプリケート, 写しJapanese
  • ಪಡಿಯಚ್ಚುKannada
  • kapeMāori
  • duplicerenDutch
  • cópia, duplicarPortuguese
  • iskaychayQuechua
  • copie, duplica, duplicat, dubla, dublareRomanian
  • делать дубликат, копия, размножить, размножать, дубликат, дублировать, делать копиюRussian
  • dupliceraSwedish

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"duplicate." Definitions.net. STANDS4 LLC, 2024. Web. 22 Apr. 2024. <https://www.definitions.net/definition/duplicate>.

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