Redundancy (language)

In the study of language, redundancy is considered a vital feature of language. It shields a message from possible flaws in transmission (unclarity, ambiguity, noise). In this way, it increases the odds of predictability of a message's meaning. On the phonological level, the redundancy of phonological rules may clarify some vagueness in spoken speech; "a speaker may know that 'thisrip' must be 'this rip' and not 'this srip' because the English consonant cluster 'sr' is illegal" (Pinker, 1994, p. 178).
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