Synonyms of duplicate

duplicate 1 of 3

adjective

ˈdü-pli-kət 

as in identical

resembling another in every respect

duplicate copies of the portrait that were painted by the artist himself

Synonyms & Similar Words

• identical
• similar
• comparable
• same
• analogous
• equivalent
• matching
• indistinguishable
• equal
• corresponding
• such
• coordinate
• parallel
• coequal
• synonymous
• much of a muchness
• like
• even
• tantamount
• alike
• look-alike
• correspondent
• akin
• suchlike

Antonyms & Near Antonyms

• different
• other
• dissimilar
• disparate
• distinctive
• distinct
• diverse
• distinguishable
• unlike
• distant
• nonidentical
• unalike
• various
• differentiable
• miscellaneous
• sundry
• varied
• discriminable
• divers

duplicate

2 of 3

noun

ˈdü-pli-kət 

1

as in image

something or someone that strongly resembles another

doll carriages that are duplicates of baby carriages

Synonyms & Similar Words

• image
• replica
• twin
• clone
• picture
• duplication
• portrait
• double
• counterpart
• equivalent
• carbon
• fetch
• alter ego
• mirror image
• facsimile
• likeness
• carbon copy
• match
• spit
• look-alike
• ringer
• doppelgänger
• spitting image
• portrayal
• companion
• effigy
• parallel
• fellow
• mate
• analogue
• equal

Antonyms & Near Antonyms

• reverse
• opposite
• antithesis
• converse

2

as in copy

something that is made to look exactly like something else

a duplicate of a house key

Synonyms & Similar Words

• copy
• reproduction
• replica
• imitation
• clone
• duplication
• replication
• dupe
• version
• carbon
• mock
• facsimile
• carbon copy
• reduplication
• dummy
• reconstruction
• simulation
• counterfeit
• forgery
• fake
• rubber stamp
• print
• miniature
• knockoff
• impression
• sham
• image
• rip-off
• semblance
• phony
• reincarnation
• spare
• approximation
• likeness
• re-creation
• mock-up
• imprint
• extra
• reserve
• shadow

Antonyms & Near Antonyms

• prototype
• original
• archetype

duplicate

3 of 3

verb

ˈdü-pli-ˌkāt 

1

as in to copy

to make an exact likeness of

art students trying to duplicate paintings in the museum's collection as part of their training

Synonyms & Similar Words

• copy
• reproduce
• replicate
• render
• imitate
• clone
• reconstruct
• reduplicate
• copycat
• simulate
• counterfeit
• mimic
• forge
• fake
• rip off
• re-create
• knock off

Antonyms & Near Antonyms

• create
• originate
• imagine
• initiate
• invent

2

as in to replicate

to make or do again

we were unable to duplicate the experiment in our own lab, so we're suspicious

Synonyms & Similar Words

• replicate
• repeat
• renew
• redo
• remake
• recreate
• reiterate
• reprise
• reduplicate
• reenact
• reinvent

3

as in to double

to make twice as great or as many

the recipe can be easily duplicated in order to feed a large family

Synonyms & Similar Words

• double
• increase
• multiply
• enlarge
• expand
• redouble
• build (up)
• compound
• proliferate
• accumulate
• mount
• rise
• escalate
• wax
• snowball
• swell
• mushroom
• balloon
• burgeon

Synonym Chooser

How does the noun duplicate differ from other similar words?

Some common synonyms of duplicate are copy, facsimile, replica, and reproduction. While all these words mean "a thing made to closely resemble another," duplicate implies a double or counterpart exactly corresponding to another thing.

a duplicate of a house key

When is it sensible to use copy instead of duplicate?

The meanings of copy and duplicate largely overlap; however, copy applies especially to one of a number of things reproduced mechanically.

printed 1000 copies of the lithograph

When can facsimile be used instead of duplicate?

Although the words facsimile and duplicate have much in common, facsimile suggests a close reproduction often of graphic matter that may differ in scale.

a facsimile of a rare book

Where would replica be a reasonable alternative to duplicate?

While the synonyms replica and duplicate are close in meaning, replica implies the exact reproduction of a particular item in all details, but not always in the same scale.

a replica of the Mayflower

miniature replicas of classic cars

When might reproduction be a better fit than duplicate?

While in some cases nearly identical to duplicate, reproduction implies an exact or close imitation of an existing thing.

reproductions from the museum's furniture collection

Example Sentences

Recent Examples of duplicate

Adjective

Contacts Cleaner finds duplicate and incomplete entries in your contacts list. — Neil J. Rubenking, PC Magazine, 24 June 2026

Just One is a cooperative word game where duplicate hints get eliminated. — Hanna Wickes, Sacbee.com, 23 June 2026

Noun

Damaged, worn-out, or expired things get thrown away, items in good condition that thrift stores are looking for can be donated, and holiday items, decor, heirlooms, and duplicates can go into storage. — Nishaa Sharma, The Spruce, 29 June 2026

Those figures likely included people who have been incommunicado due to the lack of cellphone signals, and some reports may be duplicates. — ABC News, 27 June 2026

Verb

The software uses an advanced scanning algorithm to compare both file names and contents, helping identify duplicate files with high accuracy. — Stackcommerce Team, PC Magazine, 1 July 2026

Fiber-optic, first-person view (FPV) drones have become a key weapon in the Lebanese militant group Hezbollah’s war against Israel in recent months – bypassing Israel’s sophisticated defense systems by duplicating an asymmetric warfare tactic that first emerged in the Russia-Ukraine war. — Jeremy Diamond, CNN Money, 28 June 2026