# CoC vs Cong

> English confusable word pair

## The two words

### CoC
*noun · IPA /siː oʊ siː/ · frequency rank #40,621*
Initialism of certificate of conformance.

### Cong
*name · IPA /kɔŋ/ · frequency rank #21,168*
Clipping of Vietcong.

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