redundancy

noun

re·​dun·​dan·​cy ri-ˈdən-dən(t)-sē How to pronounce redundancy (audio)
plural redundancies
1
a
: the quality or state of being redundant : superfluity
b
: the use of redundant components
also : such components
c
chiefly British : dismissal from a job especially by layoff
2
3
a
: superfluous repetition : prolixity
b
: an act or instance of needless repetition
4
: the part of a message that can be eliminated without loss of essential information

Did you know?

Redundancy, closely related to redound, has stayed close to the original meaning of "overflow" or "more than necessary". Avoiding redundancy is one of the prime rules of good writing. ""In the modern world of today" contains a redundancy; so does "He died of fatal wounds" and "For the mutual benefit of both parties". But redundancy doesn't just occur in language. "Data redundancy" means keeping the same computer data in more than one place as a safety measure, and a backup system in an airplane may provide redundancy, again for the sake of safety.

Examples of redundancy in a Sentence

Avoid redundancy in your writing. Try to avoid using redundancies in your writing. The design incorporates several redundancies. a system with a high level of redundancy The restructuring is expected to result in the redundancy of several hundred workers. The workers are now facing redundancy.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Since then, Burke County has added layers of redundancy by purchasing Starlink internet terminals that connect to satellites rather than towers, HAM radios and more satellite phones so emergency responders can keep talking when traditional systems fail. Nora O'Neill, Charlotte Observer, 18 Sep. 2025 Identifying redundancies in tech workflows is like replacing a faulty spoke. Barbara Wittmann, Forbes.com, 17 Sep. 2025 Ford said that those affected by the latest decision will be offered voluntary redundancy packages, but did not provide a timeline for when the job reductions would be completed. Hugh Cameron, MSNBC Newsweek, 16 Sep. 2025 However, Xiaopeng has noted that while the G7 already delivers the intelligence and processing required for L3 operation, it will only be considered a true Level 3 car once hardware redundancy is fully implemented and the vehicle receives the necessary regulatory approvals. Bojan Stojkovski, Interesting Engineering, 14 Sep. 2025 See All Example Sentences for redundancy

Word History

First Known Use

1601, in the meaning defined at sense 1a

Time Traveler
The first known use of redundancy was in 1601

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Cite this Entry

“Redundancy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/redundancy. Accessed 19 Sep. 2025.

Kids Definition

redundancy

noun
re·​dun·​dan·​cy ri-ˈdən-dən-sē How to pronounce redundancy (audio)
plural redundancies
1
: the quality or state of being redundant
2
a
: the use of unnecessary words
b
: an act or instance of needless repetition

More from Merriam-Webster on redundancy

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