1

duplicate

adjective du·pli·cate \ ˈdü-pli-kət also ˈdyü- \
Updated on: 11 Nov 2017

Definition of duplicate

1 :consisting of or existing in two corresponding or identical parts or examples
  • duplicate invoices
2 :being the same as another
  • duplicate copies

Examples of duplicate in a Sentence

  1. I began receiving duplicate copies of the magazine every month.

  2. I had a duplicate key made.

Recent Examples of duplicate from the Web

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.

Origin and Etymology of duplicate

Middle English, from Latin duplicatus, past participle of duplicare to double, from duplic-, duplex


2

duplicate

verb du·pli·cate \ ˈdü-pli-ˌkāt also ˈdyü- \

Definition of duplicate

duplicated; duplicating
transitive verb
1 :to make double or twofold
2 a :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

duplicative

play \-ˌkā-tiv\ adjective

Examples of duplicate in a Sentence

  1. She duplicated the video to give to family and friends.

  2. Unfortunately, the results of the first study could not be duplicated.

Recent Examples of duplicate from the Web

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.

First Known Use of duplicate

15th century


3

duplicate

noun du·pli·cate \ -kət \

Definition of duplicate

1 a :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

Examples of duplicate in a Sentence

  1. In case you lose your keys, keep a set of duplicates somewhere safe.

  2. doll carriages that are duplicates of baby carriages

Recent Examples of duplicate from the Web

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.

First Known Use of duplicate

1532

Synonym Discussion of duplicate

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


DUPLICATE Defined for English Language Learners

duplicate

adjective

Definition of duplicate for English Language Learners

  • : exactly the same as something else : made as an exact copy of something else


duplicate

verb

Definition of duplicate for English Language Learners

  • : to make an exact copy of (something)

  • : to produce (something) in another form


duplicate

noun

Definition of duplicate for English Language Learners

  • : something that is exactly the same as something else : an exact copy of something else


DUPLICATE Defined for Kids

1

duplicate

adjective du·pli·cate \ ˈdü-pli-kət , ˈdyü- \

Definition of duplicate for Students

:exactly the same as another
  • duplicate copies

2

duplicate

verb du·pli·cate \ ˈdü-pli-ˌkāt , ˈdyü- \

Definition of duplicate for Students

duplicated; duplicating
:to make an exact copy of

3

duplicate

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

Definition of duplicate for Students

:a thing that is exactly like another

Medical Dictionary

duplicate

intransitive verb du·pli·cate \ ˈd(y)ü-pli-ˌkāt \

medical Definition of duplicate

duplicated; duplicating
:to become duplicate :replicate
  • DNA in chromosomes duplicates

Law Dictionary

1

duplicate

transitive verb du·pli·cate \ ˈdü-pli-ˌkāt, ˈdyü- \

legal Definition of duplicate

duplicated; duplicating
:to make a duplicate of

duplicative

play \-ˌkā-tiv\ adjective

2

duplicate

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

legal Definition of duplicate

: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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