torus
/ˈtɔː.ɹəs/
"torus" is a 5-letter English headword indexed on PlainSpell.
The verdict
“torus” is a moderately-common English word, ranked #49,104 in English word frequency and used as a noun.
- #49,104
- frequency rank, English
- 5
- letters
- 6
- tracked misspellings
- 20
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The standard representation of such a space in 3-dimensional Euclidean space: a surface or solid formed by rotating a closed curve, especially a circle, about a line which lies in the same plane bu...
Visual similarity to commonly confused words
How many letter changes separate each confused pair (Levenshtein distance, normalized).
Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).
| Property | Value |
|---|---|
| Headword | torus |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈtɔː.ɹəs/ |
| Letters | 5 |
| Frequency rank | #49,104 |
| Misspellings tracked | 6 |
| Confusable pairs | 20 |
| Source | Wiktionary (kaikki.org) |
Where “torus” sits in English frequency
Spelling & Dictionary Insight
The English entry for torus is 5 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˈtɔː.ɹəs/. Corpus data places it at rank #49,104 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 7 distinct senses for this headword, so context determines which meaning a reader should apply.
Our generated misspelling index lists 6 likely wrong-spelling variants for torus, with forms such as "otrus", "torrus", and "torsu". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. It also participates in 20 confusable-pair relationships, "TOS", "tru", "true", and more, a pairing that trips writers up because the two words share enough sound or shape to blur together.
Etymologically, the entry records: Borrowed from Latin torus (“a round, swelling, elevation, protuberance”). The correct English form is torus, spelled T-O-R-U-S.
Definition
- 1The standard representation of such a space in 3-dimensional Euclidean space: a surface or solid formed by rotating a closed curve, especially a circle, about a line which lies in the same plane but does not intersect it (e.g. like a ring doughnut).
- 2The standard representation of such a space in 3-dimensional Euclidean space: a surface or solid formed by rotating a closed curve, especially a circle, about a line which lies in the same plane but does not intersect it (e.g. like a ring doughnut).
- 3The standard representation of such a space in 3-dimensional Euclidean space: a surface or solid formed by rotating a closed curve, especially a circle, about a line which lies in the same plane but does not intersect it (e.g. like a ring doughnut).
- 4A large convex molding, typically semicircular in cross section, which commonly projects at the base of a column and above the plinth.
- 5A rounded ridge of bone or muscle, especially one on the occipital bone.
- 6The end of the peduncle or flower stalk to which the floral parts (or in the Asteraceae, the florets of a flower head) are attached.
- 7The thickening of a membrane closing a wood-cell pit (as of gymnosperm tracheids) having the secondary cell wall arched over the pit cavity.
Etymology
Borrowed from Latin torus (“a round, swelling, elevation, protuberance”).
This word in other languages
Common misspellings
Also misspelled as: otrus,torrus,torsu,toruss,trous,ttorus
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of torus - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.
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 "torus"?
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Using “torus”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is T-O-R-U-S - every other letter order is a misspelling in standard orthography.
- Say it as /ˈtɔː.ɹəs/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Don't mix it up with “TOS” - see the side-by-side comparison. torus vs TOS
- 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.