# full moon

> English word · Noun

## Definitions
1. The phase of the moon when it is in opposition to the sun and its full disc is therefore visible.
2. The moon when it is in opposition to the sun.

## Etymology
From Middle English ful mone, from Old English full mōna, equivalent to full + moon.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/en/word/full-moon