# nonletter

> English word · Noun

## Definitions
1. That which is not a letter (alphabetic symbol).
2. That which is not a letter (written message to be delivered).

## Etymology
From non- + letter.

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