redundancy

Meanings

1. 1
   noun

   the attribute of being superfluous and unneeded

   the use of industrial robots created redundancy among workers

2. 2
   noun

   A superfluity; something redundant or excessive; a needless repetition in language.

   […] the fulneſs of the creature is limited, it ariſeth juſt to ſuch a degree and proportion, but Gods fulneſs is infinite, as it hath its Reſplendency, ſo its Redundancy, it knows neither bounds nor bottom.

3. 3
   noun

   A duplication of components or circuits to provide survival of the total system in case of failure of single components.

   2006, Lauren Bean, Richard E. Friedman, Chapter 5: School Safety in the Twenty First Century: Adapting to New Security Challenges Post-9/11, James J. F. Forest (editor), Homeland Security: Protecting America′s Targets, Volume 2: Public Spaces and Social Institutions, page 108, Staff redundancy is needed in the event that a supervisor and key unit supervisors are not present or unable to act in an emergency.

4. 4
   noun

   The state of being unemployed because one's job is no longer necessary; the dismissal of such an employee; a layoff.

   1981, New Zealand House of Representatives. Parliamentary Debates, Volume 442, page 4212, Has he received any representation from Air New Zealand management about redundancy proposals for Air New Zealand staff; and, if so, do these proposals include redundancy agreements?

5. 5
   noun

   repetition of an act needlessly

6. 6
   noun

   (electronics) a system design that duplicates components to provide alternatives in case one component fails

7. 7
   noun

   repetition of messages to reduce the probability of errors in transmission

8. 8
   noun

   The state of being redundant.

Etymology

From redundant + -cy.