duplication

1 something or someone that strongly resembles another in adulthood he became sort of a living duplication of his late father Synonyms alter ego, carbon, carbon copy, clone, counterpart, doppelgänger (or doppelganger), double, duplicate, image, facsimile, fetch, likeness, look-alike, match, mirror image, picture, replica, ringer, spit, spitting image, twinRelated Words Chinese copy; effigy, portrait, portrayal; companion, fellow, mate; equal, equivalent; analogue (or analog), parallelNear Antonyms antithesis, converse, opposite, reverse

2 something that is made to look exactly like something else a duplication of an ancient Chinese vase for the mass market Synonyms carbon, carbon copy, clone, dummy, dupe, duplicate, copy, facsimile, imitation, mock, reduplication, replica, replication, reproductionRelated Words counterfeit, fake, forgery, knockoff, phony (also phoney), rip-off, rubber stamp, sham; miniature, mock-up, simulation; reconstruction, re-creation; image, likeness, semblance, shadow; impression, imprint, print; approximation, reincarnation, version; extra, reserve, spareAntonyms archetype, original, prototype

3 the act of saying or doing over again let's avoid duplication of effort on this group project if we can Synonyms repeat, iteration, redo, reduplication, reiteration, renewal, repetition, replay, replication, repriseRelated Words rebroadcast, rerun; recitation, rehearsal