# a1

> English word · Adjective · frequency rank #12,173

## Definitions
1. first rate or excellent
2. in first class condition

## Etymology
The symbol used for a first-class vessel in Lloyd's Register of Shipping.

## Easily confused with
- **as** (https://plainspell.com/en/vs/a1-vs-as)
- **at** (https://plainspell.com/en/vs/a1-vs-at)
- **an** (https://plainspell.com/en/vs/a1-vs-an)
- **AM** (https://plainspell.com/en/vs/a1-vs-am)
- **AL** (https://plainspell.com/en/vs/a1-vs-al)
- **AD** (https://plainspell.com/en/vs/a1-vs-ad)
- **ah** (https://plainspell.com/en/vs/a1-vs-ah)
- **AP** (https://plainspell.com/en/vs/a1-vs-ap)
- **AC** (https://plainspell.com/en/vs/a1-vs-ac)
- **ai** (https://plainspell.com/en/vs/a1-vs-ai)
- **aw** (https://plainspell.com/en/vs/a1-vs-aw)
- **AR** (https://plainspell.com/en/vs/a1-vs-ar)
- **AU** (https://plainspell.com/en/vs/a1-vs-au)
- **AA** (https://plainspell.com/en/vs/a1-vs-aa)
- **AF** (https://plainspell.com/en/vs/a1-vs-af)
- **ag** (https://plainspell.com/en/vs/a1-vs-ag)
- **AK** (https://plainspell.com/en/vs/a1-vs-ak)
- **AZ** (https://plainspell.com/en/vs/a1-vs-az)
- **av** (https://plainspell.com/en/vs/a1-vs-av)
- **ay** (https://plainspell.com/en/vs/a1-vs-ay)

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/a1