# Calder vs Casper

> English confusable word pair

## The two words

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

### Casper
*name · IPA /ˈkæspɚ/ · frequency rank #22,313*
A male given name from Old Persian, of occasional usage, variant of Caspar.

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