duplication
/ˌduːplɪˈkeɪʃən/
noun
- The act or process of making an exact copy of something.
- Duplication of keys is available at the hardware store.
- The company specializes in the duplication of old photographs.
- The duplication of the document took only a few seconds.
- The state of having two or more identical things, often unnecessarily.
- The report highlighted duplication of services in the city.
- We need to avoid duplication of effort between departments.
- There was a duplication of data in the system, causing confusion.