# side note

> English word · Noun

## Definitions
1. A note or notation made in a side margin.
2. A minor related mention, made as an aside, or afterthought.

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