# millennial vs millennium

> English confusable word pair

## The two words

### millennial
*adjective · IPA /mɪˈlɛ.nɪ.əl/ · frequency rank #18,894*
Thousand-year-old; also (by extension, loosely) thousands of years old.

### millennium
*noun · IPA /mɪˈlɛnɪəm/ · frequency rank #11,249*
A period of time consisting of one thousand years.

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