cube root
"cube-root" is a 8-letter English headword indexed on PlainSpell.
The verdict
“cube root” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 9
- letters
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Of a number or expression, a number or expression the cube of which is equal to the given number or expression.
Corpus desk
Index EN-cube-root · cube root · English
cube root · unranked · 0 variants · 0 confusables
- FREQ-UNRANKED Unranked
- LEN-LONG 9 letters
- VOW-4 4 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-THIN "C" thin
- PHOTO-UNK Peer pending
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.
| Property | Value |
|---|---|
| Headword | cube root |
| Language | English |
| Part of speech | Noun |
| Letters | 9 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “cube root” in English
Rare enough to double-check
cube root is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "Of a number or expression, a number or expression the cube of which is equal to the given number or expression.".
Our edit-distance generator produced no likely misspellings for cube root, suggesting the orthography follows predictable English patterns. Our dataset records no confusable match here, since nothing in our dataset looks or sounds close enough to cause mix-ups.
This entry carries no recorded etymology, so its spelling is best explained by sound-to-letter mapping rather than etymology. The correct English form is cube root, spelled C-U-B-E- -R-O-O-T.
Definition
- 1Of a number or expression, a number or expression the cube of which is equal to the given number or expression.
Recorded use
Wiktionary examplesThese source excerpts show how cube root appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
3 is the cube root of 27.
0.5 is the cube root of 0.125.
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.