Definitions
1.nounOne that resembles or corresponds to another; an identical copy."This is a duplicate, but a very good replica."
2.nounAn 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.
3.nounA pawnbroker's ticket, which must be shown when redeeming a pledged item.
4.nounThe game of duplicate bridge.
5.nounThe game of duplicate Scrabble.
6.nounA biological specimen that was gathered alongside another specimen and represents the same species.
7.verbTo make a copy of."Can you duplicate this kind of key?"
8.verbTo do repeatedly; to do again."You don't need to duplicate my efforts."
9.verbTo produce something equal to."He found it hard to duplicate the skills of his wife."
10.adjectiveBeing the same as another; identical."This is a duplicate entry."
11.adjective(games) In which the hands of cards, tiles, etc. are preserved between rounds to be played again by other players."duplicate Scrabble"