The definition of a century is a 100-year-long period of time.(noun)
An example of a century is the years 1800-1900.
See century in Webster's New World College Dictionary
noun pl. centuries
Origin: L centuria < centum, hundred
See century in American Heritage Dictionary 4
noun pl. cen·tu·ries
Origin: Latin centuria, a group of a hundred
Origin: , from centum, hundred; see dekm̥ in Indo-European roots.
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