tesseract
/ˈte-sə-ˌrakt/
"tesseract" is a 9-letter English headword indexed on PlainSpell.
The verdict
“tesseract” is uncommon English (frequency #61,153 among 3,151 “T” headwords), classed as a noun. The kind of spelling people second-guess.
- #61,153
- frequency rank, English
- 3,151
- “T” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The four-dimensional analogue of a cube; a 4D polytope bounded by eight cubes (analogously to the way a cube is bounded by six squares).
Corpus desk
Index EN-tesseract · tesseract · English
tesseract · rank #61,153 · 0 variants · 0 confusables
- FREQ-RARE #61,153
- LEN-LONG 9 letters
- VOW-3 3 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 3,151
- PHOTO-FINISH TGV
Nearest frequency peer: TGV (+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.
Long-tail ranks near “tesseract”
Sparse band: bars invert rank so rarer forms read shorter
- tangentially
tangentially
38,853 corpus weight
- tarpaulin
tarpaulin
38,852 corpus weight
- telomere
telomere
38,850 corpus weight
- tesseract
tesseract
38,848 corpus weight
- TGV
TGV
38,847 corpus weight
- Thoth
Thoth
38,845 corpus weight
What this shows Long-tail view: where “tesseract” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | tesseract |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈte-sə-ˌrakt/ |
| Letters | 9 |
| Frequency rank | #61,153 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “tesseract” in English
Rare enough to double-check
tesseract is uncommon English at frequency #61,153 among 3,151 “T” headwords, classed as anoun, transcribed /ˈte-sə-ˌrakt/. Rarity is why readers land here mid-draft. 2 senses are on record.
Our edit-distance generator produced no likely misspellings for tesseract, since its letter pattern doesn't lend itself to common typo substitutions. No confusable counterpart is on file for this word, which tends to mean the word is visually distinctive enough to stand on its own.
Etymologically, the entry records: From tessara- (“four-”) + Ancient Greek ἀκτίς (aktís, “ray”). The correct English form is tesseract, spelled T-E-S-S-E-R-A-C-T.
Definition
- 1The four-dimensional analogue of a cube; a 4D polytope bounded by eight cubes (analogously to the way a cube is bounded by six squares).
- 2Any of various fictional mechanisms that explain extradimensional, superluminal, or time travel outside the geometry of the physical universe.
Recorded use
Wiktionary examplesThese source excerpts show how tesseract appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
Hence the cube determined by these axes is the face of the tesseract which we now have before us.
[…]then it would trace out a higher cube, or tesseract, and each of the six surrounding cubes, carried on in the same motion, would trace tesseracts also,[…].
Etymology
From tessara- (“four-”) + Ancient Greek ἀκτίς (aktís, “ray”).
Synonyms
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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Similar English words by spelling shape
Same letter count and similar misspelling depth for "tesseract", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 9 letters (nearest by frequency rank).