# ulcer vs under

> English confusable word pair

## The two words

### ulcer
*noun · IPA /ˈʌlsə/ · frequency rank #28,066*
An open sore of the skin, eyes or mucous membrane, often caused by an initial abrasion and generally maintained by an inflammation and/or an infection.

### under
*preposition · IPA /ˈʌndə/ · frequency rank #180*
Beneath; below; at or to the bottom of, or the area covered or surmounted by.

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