Definitions
1.NounA period of one hundred consecutive years; often specifically a numbered period with conventional start and end dates, e.g., the twentieth century, which stretches from (strictly) 1901 through 2000, or (informally) 1900 through 1999. The first century AD was from 1 to 100.
2.NounA unit in ancient Roman army, originally of one hundred army soldiers as part of a cohort, later of more varied sizes (but typically containing sixty to seventy or eighty) soldiers or other men (guards, police, firemen), commanded by a centurion.
3.NounA political division of ancient Rome, meeting in the Centuriate Assembly.
4.NounA hundred things of the same kind; a hundred.
5.NounA hundred runs scored either by a single player in one innings, or by two players in a partnership."He has scored 44 limited-overs centuries.; They put on a century stand to help their team recover from 57–4 to 198–4."
6.NounA score of one hundred points."That was his tenth professional century."
7.NounA race a hundred units (as meters, kilometres, miles) in length.
8.NounA banknote in the denomination of one hundred dollars.