Definitions

1. noun

A period of twelve years, or a group of twelve items.

“The couple’s marriage lasted for a dodecade, during which they had three children.”

2. adjective

Divided or consisting of twelve parts or items.

“The dodecade system of measurement is commonly used in scientific research.”

3. adverb

For or during twelve years.

“She has been a renowned artist for a dodecade, with numerous exhibitions worldwide.”