It's called a decade.
A Period of ten years is called a decade.
A period of ten years is a decade.
A ten year period is a decade.
It's called a decade.
Decade
A period of ten years is called a decade. Sometimes a decade is used more specifically, to refer to a ten-year period that starts with a year that ends in zero. For example, "the sixties" or "the 1960s" refers to the years 1960-1969.
Reconstruction.
Can also be called a Decade.
decllenium
ten-year
A period lasting ten years, or any ten year period.
a decade is a period of ten years, while a century is a period of 100 years.