# qc vs qi

> English confusable word pair

## The two words

### qc
*noun · frequency rank #16,317*
Abbreviation of quaternionic contact.

### qi
*noun · IPA /t͡ʃiː/ · frequency rank #19,953*
Alternative form of chi.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-02.
Canonical page: https://plainspell.com/en/vs/qc-vs-qi