decennary

de·cen·na·ry

 (dĭ-sĕn′ə-rē)

adj.

Of or relating to a ten-year period.

n. pl. de·cen·na·ries

A period of ten years; a decade.

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[From Latin decennis, lasting for ten years; see decennium.]

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.

Thesaurus

Noun

1.

decennary - a period of 10 years decade, decennium 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 1920s, twenties - the decade from 1920 to 1929 1820s - the decade from 1820 to 1829 1930s, thirties - the decade from 1930 to 1939 1830s - the decade from 1830 to 1839 1940s, forties - the decade from 1940 to 1949 1840s - the decade from 1840 to 1849 1950s, fifties - the decade from 1950 to 1959 1850s - the decade from 1850 to 1859 1750s - the decade from 1750 to 1759 1960s, sixties - the decade from 1960 to 1969 1860s - the decade from 1860 to 1869 1760s - the decade from 1760 to 1769 1970s, seventies - the decade from 1970 to 1979 1870s - the decade from 1870 to 1879 1770s - the decade from 1770 to 1779 1980s, eighties - the decade from 1980 to 1989 1880s, eighties - the decade from 1880 to 1889 1780s - the decade from 1780 to 1789 1990s, nineties - the decade from 1990 to 1999 1890s, nineties - the decade from 1890 to 1899 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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