# certainty

> English word · Noun · IPA /ˈsɝtn̩ti/ · frequency rank #9,295

## Definitions
1. The state of being certain.
2. An instance of being certain.
3. A fact or truth unquestionably established.

## Etymology
From Middle English certeynte (“surety”), from Anglo-Norman certeinte, from Old French certeinete, from Vulgar Latin *certānitās, from Latin certus.

## Easily confused with
- **certain** (https://plainspell.com/en/vs/certain-vs-certainty)
- **certainly** (https://plainspell.com/en/vs/certainly-vs-certainty)

## Common misspellings (14)
`ccertainty`, `ceratinty`, `cerrtainty`, `certainnty`, `certaintty`, `certaintyy`, `certainyt`, `certaitny`, `certanity`, `certianty`, `certtainty`, `cetrainty`, `cretainty`, `ecrtainty`

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