duplicate
1. [ verb ] make or do or perform again
Synonyms: repeat double replicate reduplicate
Examples:

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

Related terms: reproduce reduplicate copy recapitulate repetition replication repeater recidivist double
2. [ noun ] something additional of the same kind
Synonyms: extra
Examples:

he always carried extras in case of an emergency"

Related terms: whatchamacallit artifact
3. [ verb ] make a duplicate or duplicates of
Examples:

"Could you please duplicate this letter for me?"

Related terms: reproduce duplication duplicator
4. [ verb ] duplicate or match
Synonyms: parallel twin
Examples:

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

Related terms: match counterpart
5. [ adjective ] being two identical
Synonyms: matching twin twinned
Related terms: matched
6. [ adjective ] identically copied from an original
Examples:

"a duplicate key"

Related terms: same
7. [ verb ] increase twofold
Synonyms: double
Examples:

"The population doubled within 50 years"

Related terms: multiply redouble geminate parlay double
8. [ noun ] a copy that corresponds to an original exactly
Synonyms: duplication
Examples:

"he made a duplicate for the files"

Related terms: copy match counterpart backup
Similar spelling:   duplicatable
  duplicator
  duplicable
  duplication
  duplicating
  duplicity
  duplicitous