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[ US /ˈdupɫəˌkeɪt, ˈdupɫəkət/ ]
VERB
  1. make or do or perform again
    He could never replicate his brilliant performance of the magic trick
  2. increase twofold
    The population doubled within 50 years
  3. duplicate or match
    The polished surface twinned his face and chest in reverse
  4. make a duplicate or duplicates of
    Could you please duplicate this letter for me?
ADJECTIVE
  1. identically copied from an original
    a duplicate key
  2. being two identical
NOUN
  1. a copy that corresponds to an original exactly
    he made a duplicate for the files
  2. something additional of the same kind
    he always carried extras in case of an emergency

How To Use duplicate In A Sentence

  • Based upon analysis of duplicate samples, reproducibility was better than 3% of the measured concentration of each element.
  • We also investigated a possible DMSO effect on the frequency of polyploid and endo-reduplicated cells by chromosome counting.
  • Arrangements in the upper line represent periods in which duplicated genes diverged.
  • Guiding the Red Sox to their first World Series title since 1918 in his first year at the helm is a feat that cannot be duplicated. USATODAY.com - Red Sox's Francona not as pressured
  • Duplicate customer records in a database can hurt earnings through unnecessary mailings.
  • What others have failed to duplicate is the appealing shopping experience found in these pleasantly feminine one-stop-shopping specialty stores.
  • A point-in-time copy represents an exact duplicate of a data volume at the moment the copy was created.
  • Each serum was assayed at a 1: 2 dilution in serum diluent, in duplicate.
  • Most of these duplicated segments are doomed to oblivion, because any proteins their genes produce are redundant.
  • Cemeteries also have been excavated at the small towns of Kalibangan and Lothal that essentially duplicate the evidence from Harappa.
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