Rubik's cube
"rubik-s-cube" is a 10-letter English headword indexed on PlainSpell.
The verdict
“Rubik's cube” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 12
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A mechanical puzzle in the shape of a cube, all sides able to be rotated, each side divided into 9 squares, the moving pieces allowing the cube to be rearranged. The goal is to get the colored squa...
| Property | Value |
|---|---|
| Headword | Rubik's cube |
| Language | English |
| Part of speech | Noun |
| Letters | 12 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “Rubik's cube” sits in English frequency
Rare enough to double-check
Rubik's cube is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "A mechanical puzzle in the shape of a cube, all sides able to be rotated, each side divided into 9 squares, the moving pieces allowing the cube to be rearranged. The goal is to get the colored squa...".
Rubik's cube has no tracked misspelling variants, and the word's spelling is regular enough that our generator found nothing worth flagging. We don't track a confusable pairing for this entry, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.
Etymologically, the entry records: Calque of Hungarian Rubik-kocka, named after the inventor Ernő Rubik. The correct English form is Rubik's cube, spelled R-U-B-I-K-'-S- -C-U-B-E.
Definition
- 1A mechanical puzzle in the shape of a cube, all sides able to be rotated, each side divided into 9 squares, the moving pieces allowing the cube to be rearranged. The goal is to get the colored squares aligned so that each side of the cube is the same color.
Etymology
Calque of Hungarian Rubik-kocka, named after the inventor Ernő Rubik.
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). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Using “Rubik's cube”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is R-U-B-I-K-'-S- -C-U-B-E - 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.