duplicate

/ˈdü-pli-kət/

Middle English, from Latin duplicatus, past participle of duplicare to double, from duplic-, duplex

adjective

  1. consisting of or existing in two corresponding or identical parts or examples

  2. being the same as another

duplicate invoices

verb

  1. to make double or twofold

  2. to make a copy of

  3. to produce something equal to

noun

  1. either of two things exactly alike and usually produced at the same time or by the same process

  2. an additional copy of something (such as a book or stamp) already in a collection

  3. one that resembles or corresponds to another : counterpart

reproduction duplicate copy facsimile replica mean a thing made to closely resemble another. reproduction implies an exact or close imitation of an existing thing. duplicate implies a double or counterpart exactly corresponding to another thing.