indiction
nounA 15-year cycle used as a chronological unit in ancient Rome and incorporated in some medieval systems.
nounA declaration; proclamation.
nounA fiscal period of fifteen years, established by Constantine the Great after the reorganization of the Roman Empire, being the term during which the annual tax on real property was paid on the basis of a valuation made and proclaimed at the beginning of each quindecennial period. This became a common and convenient means for dating ordinary transactions.
nounHence In chronology, a year bearing a number, or the number attached to the year, showing its place in a cycle of fifteen years, counting from
Declaration; proclamation; public notice or appointment.
nounA cycle of fifteen years.
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a 15-year cycle used as a chronological unit in ancient Rome and adopted in some medieval kingdoms