# Calder vs coder

> English confusable word pair

## The two words

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

### coder
*noun · frequency rank #42,066*
A device that generates a code, often as a series of pulses.

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