# fissile vs fission

> English confusable word pair

## The two words

### fissile
*adjective · IPA /ˈfɪsˌaɪ.əl/ · frequency rank #49,335*
Able to be split.

### fission
*noun · IPA /ˈfɪʃən/ · frequency rank #25,059*
The process whereby one item splits to become two.

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