# cis vs cums

> English confusable word pair

## The two words

### cis
*adjective · IPA /sɪs/ · frequency rank #13,115*
Having two mutations on two genes on the same chromosome of a homologous pair.

### cums
*verb · IPA /kʌmz/ · frequency rank #45,869*
third-person singular simple present indicative of cum

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/en/vs/cis-vs-cums