# Q1 vs qc

> English confusable word pair

## The two words

### Q1
*noun · frequency rank #22,188*
The first quarter of a calendar year (January, February and March).

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

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-02.
Canonical page: https://plainspell.com/en/vs/q1-vs-qc