1 a [noncount] : the act of using a word, phrase, etc., that repeats something else and is therefore unnecessary
▪ Avoid redundancy in your writing.
b [count] : a word, phrase, etc., that repeats something else and is therefore unnecessary : a redundant word, phrase, etc.
▪ Try to avoid using redundancies in your writing. 2 technical : a part in a machine, system, etc., that has the same function as another part and that exists so that the entire machine, system, etc., will not fail if the main part fails [count] ▪ The design incorporates several redundancies. [noncount] ▪ a system with a high level of redundancy 3 Brit a : the act of ending the employment of a worker or group of workers [count] ▪ compulsory/voluntary redundancies [=layoffs] [noncount] ▪ The restructuring is expected to result in the redundancy of several hundred workers.
b [noncount] : the fact of being dismissed from a job because you are no longer needed
▪ The workers are now facing redundancy.