noun

duplication

duplication, copying, replication

Avoid duplication of effort in the team.

Avoid duplication of effort in the team.

The duplication of the files took only a minute.

The duplication of the files took only a minute.

duplication of ((sth.)) The duplication of data is a serious problem.

Synonyms: copying, replication, reproduction; Antonyms: originality, uniqueness

From Latin 'duplicare' (to double), combining 'duo' (two) and 'plicare' (to fold).

Think of 'duo' for two. Duplication is making a second, identical copy of something.

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