fitness

/ˈfɪt.nəs/

//ˈfɪt.nəs// noun

By · According to Wiktionary data (CC BY-SA) ·

"fitness" is a 7-letter English headword indexed on PlainSpell.

The verdict

“fitness” has 9 generated spelling variants in the English index at frequency #3,692. The variants make it a useful spelling check.

#3,692
frequency rank, English
2,507
“F” headwords
9
tracked misspellings
6
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The condition of being fit, suitable or appropriate.

Corpus desk

Index EN-fitness · fitness · English

fitness · rank #3,692 · 9 variants · 6 confusables

  • FREQ-COMMON #3,692
  • LEN-LONG 7 letters
  • VOW-2 2 vowels
  • CONFUS-MID 6 pairs
  • VAR-MID 9 variants
  • BOOK-MID 2,507
  • PHOTO-FINISH figured

Nearest frequency peer: figured (-1 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Rank peers near misspelling magnet “fitness”

Same rarity band: useful when a typo lands on a peer headword

corpus weight

What this shows “fitness” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

fitness vs Furness
57% similar
fitness vs fines
71% similar
fitness vs finest
71% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for fitness
PropertyValue
Headwordfitness
LanguageEnglish
Part of speechNoun
IPA/ˈfɪt.nəs/
Letters7
Frequency rank#3,692
Misspellings tracked9
Confusable pairs6
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “fitness”

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right).fitnesslands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Same rarity band neighbours include “figured” (#3,691), “Francis” (#3,693), “fallen” (#3,690). Among 2,507 “F” headwords, “fitness” is #3,692. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 9 spelling variants around fitness (IPA /ˈfɪt.nəs/), anoun. Corpus frequency is #3,692 among 2,507 “F” headwords. Wiktionary lists 4 senses, so context still picks the gloss.

Our generated misspelling index lists 9 likely wrong-spelling variants for fitness, with forms such as "ffitness", "fintess", and "fitenss". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. It also participates in 6 confusable-pair relationships, "Furness", "fines", "finest", and more, since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Etymologically, the entry records: From fit + -ness. First attested in the 16th century, with the physical sense from 1935. The correct English form is fitness, spelled F-I-T-N-E-S-S.

Definition

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

Recorded use

Wiktionary examples

These source excerpts show how fitness appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. Having introduced my two characters separately, let me present them together. Why not? He, young, wealthy, honorable; she also young, also intelligent — why not bring them together? There is an eternal fitness in all things, and nothing more so than in the case of man and woman.
  2. Carroll has been edging slowly towards full fitness after his expensive arrival from Newcastle United and his partnership with £23m Luis Suarez showed rich promise as Liverpool controlled affairs from start to finish.

Etymology

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

This word in other languages

aptitud(Español)fitness(Français)Fitness(Deutsch)fitness(Português)

Common misspellings

Also misspelled as:

  • ffitness
  • fintess
  • fitenss
  • fitnes
  • fitnness
  • fitnses
  • fittness
  • ftiness
  • iftness

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of fitness - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.

ffitness1fintess2fitenss2fitnes1fitnness1fitnses2fittness1ftiness2
Edit distance from "fitness"

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "fitness"?
"fitness" is spelled F-I-T-N-E-S-S. The IPA pronunciation is /ˈfɪt.nəs/.
What does "fitness" mean?
As a noun, "fitness" means: The condition of being fit, suitable or appropriate.
What words are commonly confused with "fitness"?
"fitness" is commonly confused with "Furness", "fines", "finest". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "fitness"?
The IPA (International Phonetic Alphabet) transcription for "fitness" is /ˈfɪt.nəs/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "fitness"?
From fit + -ness. First attested in the 16th century, with the physical sense from 1935. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "fitness", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 7 letters (nearest by frequency rank).

figured#3,691Francis#3,693equally#3,689intense#3,698

Similar misspelling depth

Headwords with a similar count of attested misspellings (9 here; floor ≥5).

Disney9 variantsbother9 variantsSweden9 variantsserves9 variants

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list