# ASO

> English word · Noun · frequency rank #39,192

## Definitions
1. Abbreviation of anti-streptolysin O.
2. Abbreviation of antisense oligonucleotide.
3. Initialism of app store optimization.
4. Initialism of AIDS service organization.

## Easily confused with
- **at** (https://plainspell.com/en/vs/aso-vs-at)
- **aw** (https://plainspell.com/en/vs/aso-vs-aw)
- **AU** (https://plainspell.com/en/vs/aso-vs-au)
- **AZ** (https://plainspell.com/en/vs/aso-vs-az)
- **av** (https://plainspell.com/en/vs/aso-vs-av)
- **ay** (https://plainspell.com/en/vs/aso-vs-ay)
- **ax** (https://plainspell.com/en/vs/aso-vs-ax)
- **ass** (https://plainspell.com/en/vs/aso-vs-ass)
- **ate** (https://plainspell.com/en/vs/aso-vs-ate)
- **ave** (https://plainspell.com/en/vs/aso-vs-ave)
- **aye** (https://plainspell.com/en/vs/aso-vs-aye)
- **ATM** (https://plainspell.com/en/vs/aso-vs-atm)
- **awe** (https://plainspell.com/en/vs/aso-vs-awe)
- **axe** (https://plainspell.com/en/vs/aso-vs-axe)
- **aww** (https://plainspell.com/en/vs/aso-vs-aww)
- **ATP** (https://plainspell.com/en/vs/aso-vs-atp)
- **Ava** (https://plainspell.com/en/vs/aso-vs-ava)
- **aux** (https://plainspell.com/en/vs/aso-vs-aux)
- **att** (https://plainspell.com/en/vs/aso-vs-att)
- **Avi** (https://plainspell.com/en/vs/aso-vs-avi)

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