redundancy

The state of being redundant.

Something redundant or excessive; a superfluity.

Repetition of linguistic information inherent in the structure of a language, as singularity in the sentence It works.

Excessive wordiness or repetition in expression.

The state or fact of being unemployed because work is no longer offered or considered necessary.

A dismissal of an employee from work for being no longer necessary; a layoff.

Duplication or repetition of elements in electronic equipment to provide alternative functional channels in case of failure.

Repetition of parts or all of a message to circumvent transmission errors.