decennium
1. [ noun ] a period of 10 years
Synonyms: decade decennary
Related terms: time_period sixties twenties fifties nineties 1830s nineties eighties 1860s 1870s forties thirties 1880s 1900s seventies 1840s 1850s 1750s 1820s 1760s 1530s 1770s 1790s 1780s century year