Also found in: Thesaurus, Legal, Wikipedia.
Related to decennium: decade
n. pl. de·cen·ni·ums or de·cen·ni·a (-sĕn′ē-ə)
A period of ten years; a decade.
n, pl -niums, -nia (-nɪə) or -naries
(Units) a less common word for decade1
[C17: from Latin, from decem ten + annus year]
de•cen•ni•um(dɪˈsɛn i əm)
n., pl. -cen•ni•ums, -cen•ni•a (-ˈsɛn i ə)
a period of ten years.
[1675–85; < Latin decenn(is) lasting ten years]
Switch to new thesaurus
|Noun||1.||decennium - a period of 10 years|
period, period of time, time period - an amount of time; "a time period of 30 years"; "hastened the period of time of his recovery"; "Picasso's blue period"
1900s - the decade from 1900 to 1909
1530s - the decade from 1530 to 1539
1820s - the decade from 1820 to 1829
1830s - the decade from 1830 to 1839
1840s - the decade from 1840 to 1849
1850s - the decade from 1850 to 1859
1750s - the decade from 1750 to 1759
1860s - the decade from 1860 to 1869
1760s - the decade from 1760 to 1769
1870s - the decade from 1870 to 1879
1770s - the decade from 1770 to 1779
1780s - the decade from 1780 to 1789
1790s - the decade from 1790 to 1799
twelvemonth, year, yr - a period of time containing 365 (or 366) days; "she is 4 years old"; "in the year 1920"
century - a period of 100 years