[re.dun.dan.cy] n, pl -cies (ca. 1602) 1 a: the quality or state of being redundant: superfluity b: the use of redundant components; also: such components c chiefly Brit: dismissal from a job esp. by layoff
2: profusion, abundance 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