DUPLICATE (2)

duplicate (2). Duplicate, n. a copy, an exact copy of anything

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Du″pli‐cate, n. 1. 1. That which exactly resembles or corresponds to something else; another, correspondent to the first; hence, a copy; a transcript; a counterpart.
I send a duplicate both of it and my last dispatch. Sir W. Temple. 2. 2. (Law) An original instrument repeated; a document which is the same as another in all essential particulars, and differing from a mere copy in having all the validity of an original. Burrill.