firmness

/ˈfɝmnəs/

//ˈfɝmnəs// noun

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

"firmness" is a 8-letter English headword indexed on PlainSpell.

The verdict

“firmness” has 11 generated spelling variants in the English index at frequency #36,983. The variants make it a useful spelling check.

#36,983
frequency rank, English
2,507
“F” headwords
11
tracked misspellings
3
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The state of being firm

Corpus desk

Index EN-firmness · firmness · English

firmness · rank #36,983 · 11 variants · 3 confusables

  • FREQ-MID #36,983
  • LEN-LONG 8 letters
  • VOW-2 2 vowels
  • CONFUS-LOW 3 pairs
  • VAR-MID 11 variants
  • BOOK-MID 2,507
  • PHOTO-FINISH filet

Nearest frequency peer: filet (-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 “firmness”

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

corpus weight

What this shows “firmness” 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).

firmness vs fitness
75% similar
firmness vs Furness
63% similar
firmness vs fairness
75% similar

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

Key facts for firmness
PropertyValue
Headwordfirmness
LanguageEnglish
Part of speechNoun
IPA/ˈfɝmnəs/
Letters8
Frequency rank#36,983
Misspellings tracked11
Confusable pairs3
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “firmness”

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).firmnesslands here:

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

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Same rarity band neighbours include “filet” (#36,982), “Flannery” (#36,984), “flipper” (#36,985). Among 2,507 “F” headwords, “firmness” is #36,983. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 11 spelling variants around firmness (IPA /ˈfɝmnəs/), anoun. Corpus frequency is #36,983 among 2,507 “F” headwords. Wiktionary lists 3 senses, so context still picks the gloss.

Our generated misspelling index lists 11 likely wrong-spelling variants for firmness, with forms such as "ffirmness", "fimrness", and "firmenss". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. It also participates in 3 confusable-pair relationships, "fitness", "Furness", "fairness", since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Etymologically, the entry records: From firm + -ness. The correct English form is firmness, spelled F-I-R-M-N-E-S-S.

Definition

  1. 1
    The state of being firm
  2. 2
    The state of being firm
  3. 3
    The state of being firm

Recorded use

Wiktionary examples

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

  1. But many a man who would have stood within a home dismantled, strong in his passion and design of vengeance, has had the firmness of his nature conquered by the razing of an air–built castle.
  2. France, for the first time since the death of Charlemagne, was governed by a prince of great firmness and ability.

Etymology

From firm + -ness.

This word in other languages

firmeza(Español)fermeté(Français)Stärke(Deutsch)firmeza(Português)

Common misspellings

Also misspelled as:

  • ffirmness
  • fimrness
  • firmenss
  • firmmness
  • firmnes
  • firmnness
  • firmnses
  • firnmess
  • firrmness
  • frimness
  • ifrmness

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of firmness - 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.

ffirmness1fimrness2firmenss2firmmness1firmnes1firmnness1firmnses2firnmess2
Edit distance from "firmness"

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 "firmness"?
"firmness" is spelled F-I-R-M-N-E-S-S. The IPA pronunciation is /ˈfɝmnəs/.
What does "firmness" mean?
As a noun, "firmness" means: The state of being firm
What words are commonly confused with "firmness"?
"firmness" is commonly confused with "fitness", "Furness", "fairness". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "firmness"?
The IPA (International Phonetic Alphabet) transcription for "firmness" is /ˈfɝmnəs/. 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 "firmness"?
From firm + -ness. 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 "firmness", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 8 letters (nearest by frequency rank).

Flannery#36,984follicle#36,988dressage#36,965greening#37,007

Similar misspelling depth

Headwords with a similar count of attested misspellings (11 here; floor ≥5).

furlong11 variantsdollhouse11 variantsGresham11 variantsgrumble11 variants

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

Source: FrequencyWords open word-frequency list