# CA vs CE

> English confusable word pair

## The two words

### CA
*noun · frequency rank #2,148*
Initialism of cellular automaton.

### CE
*name · frequency rank #9,145*
Initialism of Common Era, Current Era, or Christian Era. Equivalent of AD. Like other era initialisms, often written in small caps.

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