decade

A group, set, or series of ten , particularly

a decade of soldiers

A group, set, or series of ten

The 1960s was a turbulent decade.

I haven’t seen my cousin in over a decade!

A group, set, or series of ten

The year was divided up into twelve months renamed after the seasons [...]; each month comprised three ‘decades’ of ten days – with the décadi replacing Sundays as a day of rest; and each day was reconsecrated to a natural product or farming tool or technique.

A group, set, or series of ten

A group, set, or series of ten