decennium
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Related to decennium: decade
de·cen·ni·um
(dĭ-sĕn′ē-əm)n. pl. de·cen·ni·ums or de·cen·ni·a (-sĕn′ē-ə)
A period of ten years; a decade.
[Latin, from decennis, lasting for ten years : decem, ten; see dekm̥ in Indo-European roots + annus, year; see at- in Indo-European roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
decennium
(dɪˈsɛnɪəm) ordecennary
n, pl -niums, -nia (-nɪə) or -naries
(Units) a less common word for decade1
[C17: from Latin, from decem ten + annus year]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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| 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 |
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