# Calder vs caldera

> English confusable word pair

## The two words

### Calder
*name · frequency rank #25,307*
A number of rivers:

### caldera
*noun · IPA /kælˈdɛə.ɹə/ · frequency rank #44,667*
A large crater formed by collapse of the cone or edifice of a volcano.

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