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Definition of sudoku
sudoku
/suːˈdoʊ.kuː/
su · do · ku
Plural:sudokus
sudoku Lexical Profile
CEFR
B2
Grade
6
Tier
2
Usage
Top 10k
Syllables
3
sudoku Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• noun
1
A logic-based number-placement puzzle in which a 9x9 grid, subdivided into nine 3x3 boxes, must be filled so that each row, column, and box contains every digit from 1 to 9 exactly once.
Example
"She likes to solve the daily sudoku in the morning newspaper while drinking her coffee."
• Rhymes for sudoku
Word Origin & Etymology
Borrowed from Japanese 'sūdoku', an abbreviation of 'sūji wa dokushin ni kagiru', which translates literally as 'the digits must remain single'. The modern puzzle was originally designed by American architect Howard Garns in 1979 as 'Number Place' before being popularized and renamed in Japan in the 1980s.
Cite this Entry
Wordmom. (2026). Definition of Sudoku. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/sudoku