1.adj. 1. Identically copied from an original.
2. Existing or growing in two corresponding parts; double.
3. Denoting a manner of play in cards in which partnerships or teams play the same deals and compare scores at the end: duplicate bridge.
n. 1. An identical copy; a facsimile.
2. One that corresponds exactly to another, especially an original.
3. Games A card game in which partnerships or teams play the same deals and compare scores at the end.
v. (-kāt′) du·pli·cat·ed , du·pli·cat·ing , du·pli·cates
v.tr. 1. To make an exact copy of.
2. To make twofold; double.
3. To make or perform again; repeat: a hard feat to duplicate.
v.intr. To become duplicate.
[Middle English, from Latin duplicātus , past participle of duplicāre , to double, from duplex , duplic- , twofold; see dwo- in Indo-European roots .]
du′pli·ca·ble , du′pli·cat′a·ble (-kā′tə-bəl) adj.
du′pli·cate·ly adv.
du′pli·ca′tive adj.
du′pli·ca·to′ry (-kĭ-tôr′ē) adj.
