| 1575 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) | 
| 1976 | A New Dictionary of Kanji Usage | 
| 3061 | Classic Nelson (Andrew Nelson) | 
| 1663 | Essential Kanji (P.G. O’Neill) | 
| 1548 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) | 
| 1813 | Kanji and Kana (Spahn and Hadamitzky) | 
| 1957 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) | 
| 1738 | Kanji in Context (Nishiguchi and Kono) | 
| 1356 | Kodansha Compact Kanji Guide | 
| 4072 | Kodansha Kanji Dictionary (Jack Halpern) | 
| 2066 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) | 
| 2800 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) | 
| 1699 | Les Kanjis dans la tete (Yves Maniette) | 
| 22257 | Morohashi | 
| 3286 | New Japanese English Character Dictionary (Jack Halpern) | 
| 3823 | New Nelson (John Haig) | 
| 1683 | Remembering The Kanji (James Heisig) | 
| 1814 | Remembering The Kanji, 6th edition (James Heisig) | 
| 1649 | Tuttle Kanji Cards (Alexander Kask) | 
      Jōyō kanji, taught in junior high
    
    
      JLPT level N1
    
    
      1663 of 2500 most used kanji in newspapers
    
Stroke order
On reading compounds
- 痴 【チ】 foolishness, fool, moha (ignorance, folly)
 - 痴呆 【チホウ】 dementia, stupidity, foolishness, fool, idiot
 - 愚痴 【グチ】 idle complaint, grumble, moha (ignorance, folly)
 - 白痴 【ハクチ】 idiot, idiocy, profound mental retardation
 
Readings
- Korean:
 - chi
 
Spanish
- estúpido
 - tonto
 
Portuguese
- tolo
 - estúpido
 
French
- idiot
 - stupide
 
| 577 | 2001 Kanji | 
| 5i8.1 | The Kanji Dictionary | 
| 3-5-8 | SKIP code | 
| 0016.0 | Four corner code | 
| 1-35-52 | JIS X 0208-1997 kuten code | 
| 75f4 | Unicode hex code |