# acuity

> English word · Noun · IPA /əˈkjuːɪti/ · frequency rank #36,417

## Definitions
1. Sharpness or acuteness, as of a needle, wit, etc.
2. The ability to think, see, or hear clearly.

## Etymology
From Middle English acuite, acuyte, from Middle French acuité, from Medieval Latin acuitas, irreg., from Latin acuō (“sharpen”).

## Easily confused with
- **acute** (https://plainspell.com/en/vs/acuity-vs-acute)
- **aunty** (https://plainspell.com/en/vs/acuity-vs-aunty)
- **amity** (https://plainspell.com/en/vs/acuity-vs-amity)
- **annuity** (https://plainspell.com/en/vs/acuity-vs-annuity)
- **acquit** (https://plainspell.com/en/vs/acquit-vs-acuity)
- **acidity** (https://plainspell.com/en/vs/acidity-vs-acuity)

## Common misspellings (8)
`accuity`, `aciuty`, `acuitty`, `acuityy`, `acuiyt`, `acutiy`, `aucity`, `cauity`

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