a period of ten years beginning with a year whose last digit is zero: the decade of the 1980s. ... a group, set, or series of ten.

What is the full meaning of decade?

A decade is a period of 10 years. The word is derived (via French and Latin) from the Ancient Greek: δεκάς, romanized: dekas, which means a group of ten. Decades may describe any ten-year period, such as those of a person's life, or refer to specific groupings of calendar years.

What is called a decade?

A decade is a period of ten years, especially one that begins with a year ending in 0, for example 1980 to 1989.