# decennial

> English word · Noun · IPA /dɪˈsɛnɪəɫ/ · frequency rank #85,158

## Definitions
1. Synonym of decade, a ten-year period.
2. A tenth anniversary, particularly
3. A tenth anniversary, particularly

## Etymology
From Latin decennialis, from decennium (“10-year period”) + -ālis, from decennis (“10-year”) + -ium (“-ium”, suffix forming abstract nouns), from decem (“ten”) + annus (“year”) + -is (suffix forming compound adjectives).

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/decennial