| 1934 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 1414 | A New Dictionary of Kanji Usage |
| 2750 | Classic Nelson (Andrew Nelson) |
| 1726 | Essential Kanji (P.G. O’Neill) |
| 1511 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 1790 | Kanji and Kana (Spahn and Hadamitzky) |
| 1926 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 1802 | Kanji in Context (Nishiguchi and Kono) |
| 1266 | Kodansha Compact Kanji Guide |
| 1079 | Kodansha Kanji Dictionary (Jack Halpern) |
| 583 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 772 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1089 | Les Kanjis dans la tete (Yves Maniette) |
| 18902X | Morohashi |
| 869 | New Japanese English Character Dictionary (Jack Halpern) |
| 3403 | New Nelson (John Haig) |
| 1080 | Remembering The Kanji (James Heisig) |
| 1161 | Remembering The Kanji, 6th edition (James Heisig) |
| 1209 | Tuttle Kanji Cards (Alexander Kask) |
Jōyō kanji, taught in junior high
JLPT level N1
1359 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 炉 【ロ】 hearth, fireplace, furnace, kiln
- 炉心 【ロシン】 nuclear reactor core
- 原子炉 【ゲンシロ】 atomic reactor, nuclear reactor
- 高炉 【コウロ】 blast furnace
Readings
- Korean:
- ro
Spanish
- chimenea
- horno
- fundición
Portuguese
- lareira
- forno
- fornalha
- reator
French
- fournaise
- foyer
- four
- réacteur
| 1160 | 2001 Kanji |
| 4d4.2 | The Kanji Dictionary |
| 1-4-4 | SKIP code |
| 1-1-7 | SKIP code |
| 9387.7 | Four corner code |
| 9382.7 | Four corner code |
| 1-47-07 | JIS X 0208-1997 kuten code |
| 7089 | Unicode hex code |
Jōyō kanji, taught in grade 5
JLPT level N2
771 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 囲碁 【イゴ】 go (board game)
- 囲郭村 【イカクソン】 walled settlement, walled town
- 解囲 【カイイ】 breaking the enemy siege
- 外囲 【ガイイ】 periphery, surroundings
Kun reading compounds
- 囲む 【かこむ】 to surround, to encircle, to enclose, to fence, to wall in, to besiege, to lay siege to, to play (go, shogi, etc.)
- 囲う 【かこう】 to enclose, to surround, to encircle, to fence, to wall in, to shelter (e.g. a criminal), to shield, to hide, to protect, to keep (e.g. a mistress), to store (vegetables, fruit, etc.), to preserve, to protect
- 囲い 【かこい】 enclosure, fence, wall, pen, paling, storage (of fruit, vegetables, etc.), partitioned area of a room for conducting tea ceremonies, mistress, castle, strong defensive position
- 囲い女 【かこいおんな】 mistress
Readings
- Korean:
- wi
Spanish
- circunferencia
- rodear
- cercar
Portuguese
- circundar
- sitiar
- loja
- paliçada
- cerca
- preservar
- guardar
French
- entourer
- assiéger
- enceinte
- palissade
- encercler
- réserve
- garder
| 343 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 446 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 422 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 945 | A New Dictionary of Kanji Usage |
| 1032 | Classic Nelson (Andrew Nelson) |
| 803 | Essential Kanji (P.G. O’Neill) |
| 423 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 501A | Japanese Names (P.G. O’Neill) |
| 1194 | Kanji and Kana (Spahn and Hadamitzky) |
| 1257 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 1062 | Kanji in Context (Nishiguchi and Kono) |
| 340 | Kodansha Compact Kanji Guide |
| 3807 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1949 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 2643 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1825 | Les Kanjis dans la tete (Yves Maniette) |
| 4722 | Morohashi |
| 3069 | New Japanese English Character Dictionary (Jack Halpern) |
| 945 | New Nelson (John Haig) |
| 1807 | Remembering The Kanji (James Heisig) |
| 1948 | Remembering The Kanji, 6th edition (James Heisig) |
| 474 | Tuttle Kanji Cards (Alexander Kask) |
| 1955 | 2001 Kanji |
| 3s4.2 | The Kanji Dictionary |
| 3-3-4 | SKIP code |
| 6055.0 | Four corner code |
| 1-16-47 | JIS X 0208-1997 kuten code |
| 56f2 | Unicode hex code |