duplication
1. [ noun ] a copy that corresponds to an original exactly
Synonyms: duplicate
Examples:

"he made a duplicate for the files"

Related terms: copy match counterpart backup duplicate
2. [ noun ] the act of copying or making a duplicate (or duplicates) of something
Synonyms: gemination duplicating
Examples:

"this kind of duplication is wasteful"

Related terms: copying reduplication duplicate
Similar spelling:   duplicating
  duplicate
  duplicator
  duplicatable
  duplicability
  duplicable
  duplicitous
  duplicity