hypercube

/ˈhaɪ.pə.kjuːb/

//ˈhaɪ.pə.kjuːb// noun

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

"hypercube" is a 9-letter English headword indexed on PlainSpell.

The verdict

“hypercube” is uncommon English (frequency #93,814 among 23,837 “H” headwords), classed as a noun. The kind of spelling people second-guess.

#93,814
frequency rank, English
23,837
“H” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A geometric figure in four or more dimensions, which is analogous to a cube in three dimensions. Specifically, the n-dimensional equivalent of a cube for any non-negative integer n.

Key facts for hypercube
PropertyValue
Headwordhypercube
LanguageEnglish
Part of speechNoun
IPA/ˈhaɪ.pə.kjuːb/
Letters9
Frequency rank#93,814
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “hypercube” sits in English frequency

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

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

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Rare enough to double-check

hypercube is uncommon English at frequency #93,814 among 23,837 “H” headwords, classed as anoun, transcribed /ˈhaɪ.pə.kjuːb/. Rarity is why readers land here mid-draft. 4 senses are on record.

Zero misspellings are on record for hypercube in our index, since its letter sequence doesn't invite the usual edit-distance slips. It is not paired with a close-neighbour confusable in our dataset, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: From hyper- + cube. The correct English form is hypercube, spelled H-Y-P-E-R-C-U-B-E.

Definition

  1. 1
    A geometric figure in four or more dimensions, which is analogous to a cube in three dimensions. Specifically, the n-dimensional equivalent of a cube for any non-negative integer n.
  2. 2
    Such a figure in four dimensions; a tesseract.
  3. 3
    A data cube with more than three dimensions.
  4. 4
    A computer architecture in which each processor is connected to n others, by analogy with a hypercube of n dimensions.

Etymology

From hyper- + cube.

Synonyms

8-celloctachorontesseract

This word in other languages

hipercubo(Español)

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 "hypercube"?
"hypercube" is spelled H-Y-P-E-R-C-U-B-E. The IPA pronunciation is /ˈhaɪ.pə.kjuːb/.
What does "hypercube" mean?
As a noun, "hypercube" means: A geometric figure in four or more dimensions, which is analogous to a cube in three dimensions. Specifically, the n-dimensional equivalent of a cube for any non-negative integer n.
How do you pronounce "hypercube"?
The IPA (International Phonetic Alphabet) transcription for "hypercube" is /ˈhaɪ.pə.kjuːb/. 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 "hypercube"?
From hyper- + cube. 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.

Using “hypercube”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is H-Y-P-E-R-C-U-B-E - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈhaɪ.pə.kjuːb/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Browse more English words and confusable pairs in the same reference. English words

Other uncommon English words near this rank

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.

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

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list