# lunacy vs lunar

> English confusable word pair

## The two words

### lunacy
*noun · IPA /ˈluː.nə.si/ · frequency rank #32,485*
The state of being mad, insanity

### lunar
*adjective · IPA /ˈl(j)uːnə/ · frequency rank #10,078*
Of, pertaining to, or resembling the Moon (that is, Luna, the Earth's moon).

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