WordNet: decade, decennary, decennium

a period of 10 years

• hypernym period, period of time, time period

• hyponym 1900s

• hyponym 1530s

• hyponym 1920s, twenties

• hyponym 1820s

• hyponym 1930s, thirties

• hyponym 1830s

• hyponym 1940s, forties

• hyponym 1840s

• hyponym 1950s, fifties

• hyponym 1850s

• hyponym 1750s

• hyponym 1960s, sixties

• hyponym 1860s

• hyponym 1760s

• hyponym 1970s, seventies

• hyponym 1870s

• hyponym 1770s

• hyponym 1980s, eighties

• hyponym 1880s, eighties

• hyponym 1780s

• hyponym 1990s, nineties

• hyponym 1890s, nineties

• hyponym 1790s

• part holonym century

decade

• (suomi) vuosikymmen (synonyymi)

decennary

• (suomi) vuosikymmen (synonyymi)

decennium

• (suomi) vuosikymmen (synonyymi)