| 1917 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) | 
| 1811 | A New Dictionary of Kanji Usage | 
| 3006 | Classic Nelson (Andrew Nelson) | 
| 1284 | Essential Kanji (P.G. O’Neill) | 
| 1627 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) | 
| 2004 | Japanese Names (P.G. O’Neill) | 
| 1060 | Kanji and Kana (Spahn and Hadamitzky) | 
| 1105 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) | 
| 1302 | Kanji in Context (Nishiguchi and Kono) | 
| 1508 | Kodansha Compact Kanji Guide | 
| 3196 | Kodansha Kanji Dictionary (Jack Halpern) | 
| 1652 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) | 
| 2242 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) | 
| 1376 | Les Kanjis dans la tete (Yves Maniette) | 
| 27343 | Morohashi | 
| 2585 | New Japanese English Character Dictionary (Jack Halpern) | 
| 4469 | New Nelson (John Haig) | 
| 1364 | Remembering The Kanji (James Heisig) | 
| 1464 | Remembering The Kanji, 6th edition (James Heisig) | 
| 1475 | Tuttle Kanji Cards (Alexander Kask) | 
      accumulate, involvement, trouble, tie up, continually
    
    - On:
 - ルイ
 
      Jōyō kanji, taught in junior high
    
    
      JLPT level N1
    
    
      1662 of 2500 most used kanji in newspapers
    
Stroke order
On reading compounds
- 累 【ルイ】 trouble, harmful effect, evil influence, implication, involvement
 - 累計 【ルイケイ】 cumulative total, accumulated total, total up to now
 - 係累 【ケイルイ】 dependents, family members that one has to support, encumbrances, things that tie one down
 - 累々 【ルイルイ】 in heaps
 
Readings
- Korean:
 - ru
 
Spanish
- relación
 - conexión
 - compromiso
 - apilar
 - repetidamente
 - una y otra vez
 
Portuguese
- acumular
 - envolvimento
 - problemas
 - conexão
 - continuamente
 
French
- amasser
 - implication
 - ennuis
 - liens
 - continuellement
 
| 3641 | 2001 Kanji | 
| 5f6.5 | The Kanji Dictionary | 
| 2-5-6 | SKIP code | 
| 6090.3 | Four corner code | 
| 1-46-63 | JIS X 0208-1997 kuten code | 
| 7d2f | Unicode hex code | 
      Jōyō kanji, taught in junior high
    
    
      JLPT level N1
    
    
      2107 of 2500 most used kanji in newspapers
    
Stroke order
On reading compounds
- 囚 【シュウ】 imprisonment, captive, prisoner
 - 囚人 【シュウジン】 prisoner, convict
 - 確定死刑囚 【カクテイシケイシュウ】 criminal condemned to death, convict on death row
 - 罪囚 【ザイシュウ】 prisoner, convict
 
Kun reading compounds
- 囚われる 【とらわれる】 to be caught, to be captured, to be taken prisoner, to be arrested, to be apprehended, to be seized with (fear, etc.), to be a slave to, to stick to, to adhere to, to be swayed by
 
Readings
- Korean:
 - su
 
Spanish
- esclavitud
 - prisión
 - cautividad
 - esclavizar
 - encarcelar
 
Portuguese
- cativo
 - criminoso
 - prisão
 - pegar
 
French
- capturer
 - criminel
 - arrêter
 - attraper
 - prison
 
| 1353 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) | 
| 1830 | A New Dictionary of Kanji Usage | 
| 1024 | Classic Nelson (Andrew Nelson) | 
| 1538 | Essential Kanji (P.G. O’Neill) | 
| 1146 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) | 
| 1195 | Kanji and Kana (Spahn and Hadamitzky) | 
| 1258 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) | 
| 1717 | Kanji in Context (Nishiguchi and Kono) | 
| 336 | Kodansha Compact Kanji Guide | 
| 3776 | Kodansha Kanji Dictionary (Jack Halpern) | 
| 1926 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) | 
| 2618 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) | 
| 1027 | Les Kanjis dans la tete (Yves Maniette) | 
| 4680 | Morohashi | 
| 3042 | New Japanese English Character Dictionary (Jack Halpern) | 
| 937 | New Nelson (John Haig) | 
| 1018 | Remembering The Kanji (James Heisig) | 
| 1094 | Remembering The Kanji, 6th edition (James Heisig) | 
| 1044 | Tuttle Kanji Cards (Alexander Kask) | 
| 1262 | 2001 Kanji | 
| 3s2.1 | The Kanji Dictionary | 
| 3-3-2 | SKIP code | 
| 6080.0 | Four corner code | 
| 1-28-92 | JIS X 0208-1997 kuten code | 
| 56da | Unicode hex code |