# poison-pen letter

> English word · Noun

## Definitions
1. A missive which is malicious, insulting, and/or defamatory toward a person, organization, or point of view, especially one which is unsigned.

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