# fitness

> English word · Noun · IPA /ˈfɪt.nəs/ · frequency rank #3,692

## Definitions
1. The condition of being fit, suitable or appropriate.
2. The cultivation of an attractive and/or healthy physique.
3. An organism's or species' degree of success in finding a mate and producing offspring.
4. The condition of being attractive, fanciable or beautiful.

## Etymology
From fit + -ness. First attested in the 16th century, with the physical sense from 1935.

## Easily confused with
- **Furness** (https://plainspell.com/en/vs/fitness-vs-furness)
- **fines** (https://plainspell.com/en/vs/fines-vs-fitness)
- **finest** (https://plainspell.com/en/vs/finest-vs-fitness)
- **finesse** (https://plainspell.com/en/vs/finesse-vs-fitness)
- **fairness** (https://plainspell.com/en/vs/fairness-vs-fitness)
- **firmness** (https://plainspell.com/en/vs/firmness-vs-fitness)

## Common misspellings (9)
`ffitness`, `fintess`, `fitenss`, `fitnes`, `fitnness`, `fitnses`, `fittness`, `ftiness`, `iftness`

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