# AOC vs arco

> English confusable word pair

## The two words

### AOC
*noun · frequency rank #28,816*
Initialism of Air Officer Commanding, a title used to refer to RAF officers holding certain command appointments.

### arco
*adverb · frequency rank #49,190*
A note in string instrument musical notation indicating that the bow is to be used in the usual way, usually following a passage that is played pizzicato.

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