DECADE

decade. Decade, n. the sum or number of ten, a term of ten days in the new French calendar

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Dec″ade (?), n. [[F. décade, L. decas, -adis, fr. Gr. �, fr. δέκα ten. See Ten.]] A group or division of ten; esp., a period of ten years; a decennium; as, a decade of years or days; a decade of soldiers; the second decade of Livy. [Written also decad.] During this notable decade of years. Gladstone.