thinness
"thinness" is a 8-letter English headword indexed on PlainSpell.
The verdict
“thinness” is an uncommon English word, ranked #60,514 in English word frequency and used as a noun.
- #60,514
- frequency rank, English
- 8
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The state or quality of being thin.
| Property | Value |
|---|---|
| Headword | thinness |
| Language | English |
| Part of speech | Noun |
| Letters | 8 |
| Frequency rank | #60,514 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “thinness” sits in English frequency
Spelling & Dictionary Insight
The English entry for thinness is 8 letters long, classified as a noun. Corpus data places it at rank #60,514 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "The state or quality of being thin.".
thinness has no tracked misspelling variants, a sign its spelling follows regular English conventions. It is not paired with a close-neighbour confusable in our dataset, since its spelling is unusual enough that it doesn't cluster with a lookalike.
Etymologically, the entry records: From Middle English thynnesse, from Old English þynnes (“thinness, slightness of density, lack of density, tenuity, fluidity, poverty, feebleness of sight, weakness”), equivalent to thin + -ness. The correct English form is thinness, spelled T-H-I-N-N-E-S-S.
Definition
- 1The state or quality of being thin.
Etymology
From Middle English thynnesse, from Old English þynnes (“thinness, slightness of density, lack of density, tenuity, fluidity, poverty, feebleness of sight, weakness”), equivalent to thin + -ness.
This word in other languages
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
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Using “thinness”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is T-H-I-N-N-E-S-S - every other letter order is a misspelling in standard orthography.
- Browse more English words and confusable pairs in the same reference. English words
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.