Meaning & Definition of Duplicate in English

1. Something additional of the same kind

• "He always carried extras in case of an emergency"

2. A copy that corresponds to an original exactly

• "He made a duplicate for the files"

1. Make or do or perform again

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

2. Duplicate or match

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

3. Make a duplicate or duplicates of

• "Could you please duplicate this letter for me?"

4. Increase twofold

• "The population doubled within 50 years"

1. Identically copied from an original

• "A duplicate key"

2. Being two identical