sudoku
/sʊˈdəʊku/
"sudoku" is a 6-letter English headword indexed on PlainSpell.
The verdict
“sudoku” has 8 generated spelling variants in the English index at frequency #45,107. The variants make it a useful spelling check.
- #45,107
- frequency rank, English
- 54,294
- “S” headwords
- 8
- tracked misspellings
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A type of pencil puzzle played on a square grid, requiring each of the columns, each of the rows, and each of the subregions (called "boxes" or "regions") to contain the lowest whole numbers up to ...
| Property | Value |
|---|---|
| Headword | sudoku |
| Language | English |
| Part of speech | Noun |
| IPA | /sʊˈdəʊku/ |
| Letters | 6 |
| Frequency rank | #45,107 |
| Misspellings tracked | 8 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “sudoku” sits in English frequency
A misspelling magnet
The generator records 8 spelling variants around sudoku (IPA /sʊˈdəʊku/), anoun. Corpus frequency is #45,107 among 54,294 “S” headwords. Dominant gloss: "A type of pencil puzzle played on a square grid, requiring each of the columns, each of the rows, and each of the subregions (called "boxes" or "regions") to contain the lowest whole numbers up to ...".
Our generated misspelling index lists 8 likely wrong-spelling variants for sudoku, with forms such as "sduoku", "ssudoku", and "suddoku". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. 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: Etymology tree Japanese 数(すう)字(じ) (sūji) Japanese は (wa) Japanese 独(どく)身(しん) (dokushin) Japanese に (ni) Japanese 限(かぎ)る (kagiru) Japanese 数独 (sūdoku)bor. English sudoku Borrowed from Japanese 数独 (sūdoku). The correct English form is sudoku, spelled S-U-D-O-K-U.
Definition
- 1A type of pencil puzzle played on a square grid, requiring each of the columns, each of the rows, and each of the subregions (called "boxes" or "regions") to contain the lowest whole numbers up to the dimension of the puzzle, usually 1 to 9, once each. The subregions are rectangular or square except in variants.
Etymology
Etymology tree Japanese 数(すう)字(じ) (sūji) Japanese は (wa) Japanese 独(どく)身(しん) (dokushin) Japanese に (ni) Japanese 限(かぎ)る (kagiru) Japanese 数独 (sūdoku)bor. English sudoku Borrowed from Japanese 数独 (sūdoku).
This word in other languages
Common misspellings
Also misspelled as:
- sduoku
- ssudoku
- suddoku
- sudkou
- sudokku
- sudouk
- suodku
- usdoku
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of sudoku - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.
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 "sudoku"?
What does "sudoku" mean?
What are common misspellings of "sudoku"?
How do you pronounce "sudoku"?
What is the origin of the word "sudoku"?
Is PlainSpell free to use?
Using “sudoku”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is S-U-D-O-K-U - every other letter order is a misspelling in standard orthography.
- Say it as /sʊˈdəʊku/ (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
Same frequency band
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.