# OCC vs OSI

> English confusable word pair

## The two words

### OCC
*name · frequency rank #43,291*
Initialism of Office of the Comptroller of the Currency.

### OSI
*name · frequency rank #39,943*
Initialism of Open Systems Interconnection, an International Standard ISO/IEC 7894:1994(E) subtitled Basic Reference Model, containing a formal description of an idealized computer network architecture.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/vs/occ-vs-osi