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¹duplicate

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

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

Full Definition of DUPLICATE

: consisting of or existing in two corresponding or identical parts or examples <duplicate invoices>

: being the same as another <duplicate copies>

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Origin of DUPLICATE

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

First Known Use: 15th century

Related to DUPLICATE

Synonyms: coequal, same, equal, even, identical, indistinguishable

Antonyms: different, disparate, dissimilar, distant, distinct, distinctive, distinguishable, diverse, nonidentical, other, unalike, unlike

²duplicate

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

: to make an exact copy of (something)

: to produce (something) in another form

du·pli·cat·eddu·pli·cat·ing

Full Definition of DUPLICATE

transitive verb

: to make double or twofold

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

— du·pli·ca·tive \-ˌkā-tiv\ adjective

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First Known Use of DUPLICATE

15th century

Related to DUPLICATE

Synonyms: clone, copycat, copy, imitate, reduplicate, render, replicate, reproduce

Antonyms: originate

³duplicate

noun du·pli·cate \-kət\

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

Full Definition of DUPLICATE

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 (as a book or stamp) already in a collection

: one that resembles or corresponds to another : counterpart

: two identical copies —used in the phrase in duplicate

See duplicate defined for English-language learners

First Known Use of DUPLICATE

1532

Related to DUPLICATE

Synonyms: alter ego, carbon, carbon copy, clone, counterpart, doppelgänger (or doppelganger), double, image, duplication, facsimile, fetch, likeness, look-alike, match, mirror image, picture, replica, ringer, spit, spitting image, twin

Antonyms: archetype, original, prototype

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>.

DUPLICATED Defined for Kids