# alertness

> English word · Noun · IPA /əˈlɝt.nəs/ · frequency rank #39,183

## Definitions
1. The quality of being alert or on the alert.

## Etymology
From alert + -ness.

## Common misspellings (12)
`aelrtness`, `alerntess`, `alerrtness`, `alertenss`, `alertnes`, `alertnness`, `alertnses`, `alerttness`, `aletrness`, `allertness`, `alretness`, `laertness`

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