# shell vs sill

> English confusable word pair

## The two words

### shell
*noun · IPA /ʃɛl/ · frequency rank #3,726*
A hard external covering of an animal.

### sill
*noun · IPA /sɪl/ · frequency rank #29,086*
A breast wall; window breast; horizontal brink which forms the base of a window.

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