Weegy: Redundancy is defined as: 1. superfluous repetition or overlapping, especially of words. 2. a redundant thing, part, or amount; superfluity. 3. [ the provision of additional or duplicate systems, equipment, etc., that function in case an operating part or system fails, as in a spacecraft. 4.Linguistics . a. the inclusion of more information than is necessary for communication, as in those cars, where both words are marked for ... (More)