A decade is a period of 10 years. The word is derived 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 the definition of decade mean?

: a period of 10 years especially : a 10-year period beginning with a year ending in 0. See the full definition for decade in the English Language Learners Dictionary. decade.

What does decade mean example?

The definition of a decade is a period of 10 years. An example of decade is 1990 to 2000. noun.