# ISA

> English word · Noun · IPA /ˈaɪsə/ · frequency rank #13,178

## Definitions
1. Initialism of instruction set architecture.
2. Initialism of individual savings account, a financial account for investment with special tax rules.
3. Initialism of International Standard on Auditing, one of a set of professional standards for the performance of audits of financial information issued by the IAASB.
4. Initialism of intelligent speed assistance / adaptation.
5. Initialism of isosaccharinic acid.
6. Initialism of ideological state apparatus.

## Easily confused with
- **it** (https://plainspell.com/en/vs/isa-vs-it)
- **IV** (https://plainspell.com/en/vs/isa-vs-iv)
- **iz** (https://plainspell.com/en/vs/isa-vs-iz)
- **its** (https://plainspell.com/en/vs/isa-vs-its)
- **ivy** (https://plainspell.com/en/vs/isa-vs-ivy)
- **iso** (https://plainspell.com/en/vs/isa-vs-iso)
- **ISS** (https://plainspell.com/en/vs/isa-vs-iss)
- **ISP** (https://plainspell.com/en/vs/isa-vs-isp)
- **IVF** (https://plainspell.com/en/vs/isa-vs-ivf)
- **ISI** (https://plainspell.com/en/vs/isa-vs-isi)
- **itt** (https://plainspell.com/en/vs/isa-vs-itt)
- **ITC** (https://plainspell.com/en/vs/isa-vs-itc)
- **ISD** (https://plainspell.com/en/vs/isa-vs-isd)
- **isu** (https://plainspell.com/en/vs/isa-vs-isu)
- **Ivo** (https://plainspell.com/en/vs/isa-vs-ivo)
- **ISC** (https://plainspell.com/en/vs/isa-vs-isc)
- **IWC** (https://plainspell.com/en/vs/isa-vs-iwc)
- **ISR** (https://plainspell.com/en/vs/isa-vs-isr)
- **ith** (https://plainspell.com/en/vs/isa-vs-ith)
- **Isis** (https://plainspell.com/en/vs/isa-vs-isis)

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