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Definitions

duplicate

[doo-pli-kit, dyoo-, doo-pli-keyt, dyoo-] / ˈdu plɪ kɪt, ˈdyu-, ˈdu plɪˌkeɪt, ˈdyu- /
ADJECTIVE
matching
Synonyms
STRONG
corresponding duplex equal equivalent same twin
WEAK
alike carbon-copy dualistic duple identic identical indistinguishable self-same tantamount twofold very same
Antonyms
STRONG
different dissimilar mismatched unequal unlike variable
WEAK
unmatching
NOUN
copy, reproduction
Synonyms
STRONGEST
carbon copy duplication photocopy replica replication
STRONG
Photostat Xerox analogue carbon clone companion coordinate copycat correlate counterfeit counterpart ditto double dupe facsimile fake fellow germination imitation knockoff likeness match mate obverse parallel phony pirate reciprocal recurrence repetition ringer second similarity twin
WEAK
chip off the old block counterscript dead ringer lookalike repro spitting image stat
Antonyms
STRONG
difference dissimilarity enemy opposite original reality reverse unlikeness
WEAK
archetype model prototype
VERB
make a copy; repeat
Synonyms
STRONGEST
clone copy imitate mirror replicate reproduce
STRONG
Photostat Xerox counterfeit ditto double dupe echo fake manifold mimeo multiply phony photocopy pirate redo redouble reduplicate remake rework trace
WEAK
act like do a takeoff do again do like dualize go like knock off make like make replica make twofold repro stat take off as
Antonyms
STRONGEST
be original
STRONG
divide

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

While some of those were due to duplicate entries or deceased voters, many were also removed for “logical discrepancies” flagged by software such as too-large families or improbable age gaps between parents and children.

From The Wall Street Journal • May 7, 2026

India's Election Commission says the revision is meant to weed out duplicate or outdated entries and add genuine voters.

From BBC • Apr. 12, 2026

"A big portion of popular country music has become kind of shallow, so that is pretty easy to duplicate."

From Barron's • Apr. 7, 2026

A second analysis focused on 90 duplicate samples to determine whether storage conditions affected accuracy.

From Science Daily • Mar. 31, 2026

That way everyone wasn’t investing in duplicate equipment or machines that would sit idle until the same time next year.

From "Reaching for the Moon" by Katherine Johnson

Vocabulary lists containing duplicate

List 1

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"A Retrieved Reformation" by O. Henry

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"A Walk to the Jetty," Vocabulary from a novel excerpt

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