# senna vs sienna

> English confusable word pair

## The two words

### senna
*noun · IPA /ˈsɛnə/ · frequency rank #31,341*
Any of several plants of the tribe Cassieae, especially those of the genera Cassia and Senna, whose leaves and pods are used as a purgative and laxative.

### sienna
*noun · IPA /siˈɛn.ə/ · frequency rank #30,226*
A form of clay containing iron and manganese.

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