duplication (n.)

• ambiguity
• ambivalence
• bifurcation
• burlesque
• clone
• conjugation
• copy
• counterpart
• dichotomy
• ditto
• double
• doublethink
• doubling
• dualism
• duality
• dummy
• dupe
• duplicate
• duplicity
• echo
• embellishment
• expletive
• extravagance
• facsimile
• fat
• featherbedding
• filling
• frill
• frippery
• gingerbread
• imitation
• irony
• knockoff
• luxury
• mock-up
• model
• ornamentation
• overlap
• padding
• pairing
• palingenesis
• paraphrase
• parody
• plagiarism
• pleonasm
• polarity
• prolixity
• quadruplicate
• quotation
• re-creation
• re-formation
• reappearance
• rebirth
• rebuilding
• reconstruction
• recurrence
• redundance
• redundancy
• reduplication
• regeneration
• regurgitation
• reincarnation
• reissue
• remaking
• renascence
• renewal
• renovation
• reorganization
• repetition
• replica
• replication
• representation
• reprinting
• reproduction
• restoration
• resumption
• resurrection
• return
• revision
• revival
• rubbing
• superfluity
• tautology
• tracing
• transcription
• travesty
• triplicate
• verbosity
• version
• xerography