torus

/ˈtɔː.ɹəs/

//ˈtɔː.ɹəs// noun

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

"torus" is a 5-letter English headword indexed on PlainSpell.

The verdict

“torus” has 6 generated spelling variants in the English index at frequency #49,104. The variants make it a useful spelling check.

#49,104
frequency rank, English
3,151
“T” headwords
6
tracked misspellings
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 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...

Corpus desk

Index EN-torus · torus · English

torus · rank #49,104 · 6 variants · 20 confusables

  • FREQ-MID #49,104
  • LEN-MID 5 letters
  • VOW-2 2 vowels
  • CONFUS-HIGH 20 pairs
  • VAR-MID 6 variants
  • BOOK-MID 3,151
  • PHOTO-FINISH torturous

Nearest frequency peer: torturous (-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 “torus”

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

corpus weight

What this shows “torus” 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).

torus vs TOS
0% similar
torus vs tru
60% similar
torus vs true
60% similar

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

Key facts for torus
PropertyValue
Headwordtorus
LanguageEnglish
Part of speechNoun
IPA/ˈtɔː.ɹəs/
Letters5
Frequency rank#49,104
Misspellings tracked6
Confusable pairs20
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “torus”

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

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

Scale is logarithmic (each tick is 10× rarer). Same rarity band neighbours include “torturous” (#49,103), “Toth” (#49,105), “touristy” (#49,106). Among 3,151 “T” headwords, “torus” is #49,104. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 6 spelling variants around torus (IPA /ˈtɔː.ɹəs/), anoun. Corpus frequency is #49,104 among 3,151 “T” headwords. Wiktionary lists 7 senses, so context still picks the gloss.

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

  1. 1
    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 but does not intersect it (e.g. like a ring doughnut).
  2. 2
    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 but does not intersect it (e.g. like a ring doughnut).
  3. 3
    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 but does not intersect it (e.g. like a ring doughnut).
  4. 4
    A large convex molding, typically semicircular in cross section, which commonly projects at the base of a column and above the plinth.
  5. 5
    A rounded ridge of bone or muscle, especially one on the occipital bone.
  6. 6
    The end of the peduncle or flower stalk to which the floral parts (or in the Asteraceae, the florets of a flower head) are attached.
  7. 7
    The thickening of a membrane closing a wood-cell pit (as of gymnosperm tracheids) having the secondary cell wall arched over the pit cavity.

Recorded use

Wiktionary examples

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

  1. A 4-variable Karnaugh map can be thought of, topologically, as being a torus.
  2. While there is a hereditary component to tori, this does not explain all cases. Tori tend to appear more frequently during middle age of life; the torus palatinus is more commonly observed in females, but this is not the case with the torus mandibularis. Certain ethnic groups are more prone to one torus or the other.

Etymology

Borrowed from Latin torus (“a round, swelling, elevation, protuberance”).

This word in other languages

toro(Español)tore(Français)Torus(Deutsch)toro(Português)

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.

otrus2torrus1torsu2toruss1trous2ttorus1
Edit distance from "torus"

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"?
"torus" is spelled T-O-R-U-S. The IPA pronunciation is /ˈtɔː.ɹəs/.
What does "torus" mean?
As a noun, "torus" means: 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...
What words are commonly confused with "torus"?
"torus" is commonly confused with "TOS", "tru", "true". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "torus"?
The IPA (International Phonetic Alphabet) transcription for "torus" is /ˈtɔː.ɹəs/. 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 "torus"?
Borrowed from Latin torus (“a round, swelling, elevation, protuberance”). 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 "torus", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 5 letters (nearest by frequency rank).

Uriah#49,127Vinod#49,136staph#49,070wahoo#49,140

Similar misspelling depth

Headwords with a similar count of attested misspellings (6 here; floor ≥5).

SIDS6 variantsAmari6 variantsAngell6 variantsbails6 variants

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

Source: FrequencyWords open word-frequency list