re|dun|dan|cy

re|dun|dan|cy «rih DUHN duhn see», noun, plural -cies.

1. more than is needed.

2. a redundant thing, part, or amount.

3. the use of too many words for the same idea; wordiness: »

She is afflicted with a passion for redundancy (Atlantic).

4. the part of a communication that can be omitted without loss of essential information.

5. British. an excess or surplus of workers, such as in a factory or industry, especially as a result of modernization or automation: »

Workers at the…factory, where about a thousand people are employed, became worried last month about redundancy and the introduction for some of them of a four-day week (Manchester Guardian Weekly).

6. Aerospace. the ability to provide duplication or replacement of some function in case of a failure in equipment: »

The Goldstone station was equipped with two completely separate systems to provide 100 percent redundancy in the reception and recording of the Ranger photographs (Scientific American).