| 591 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 282 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 465 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 67 | A New Dictionary of Kanji Usage |
| 757 | Classic Nelson (Andrew Nelson) |
| 168 | Essential Kanji (P.G. O’Neill) |
| 131 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 183 | Kanji and Kana (Spahn and Hadamitzky) |
| 183 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 548 | Kanji in Context (Nishiguchi and Kono) |
| 233 | Kodansha Compact Kanji Guide |
| 3681 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1879 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 2559 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1712 | Les Kanjis dans la tete (Yves Maniette) |
| 2674 | Morohashi |
| 2963 | New Japanese English Character Dictionary (Jack Halpern) |
| 585 | New Nelson (John Haig) |
| 1696 | Remembering The Kanji (James Heisig) |
| 1831 | Remembering The Kanji, 6th edition (James Heisig) |
| 243 | Tuttle Kanji Cards (Alexander Kask) |
Jōyō kanji, taught in grade 3
JLPT level N2
137 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 区 【ク】 ward, borough, city (in Tokyo), district (e.g. electoral), section, zone (e.g. postal)
- 区域 【クイキ】 area, zone, district, quarter, section, limits, boundary
- 学区 【ガック】 school district, school area
- 鉱区 【コウク】 mining area, mine lot
Readings
- Korean:
- gu, u
Spanish
- barrio
- distrito
- sección
Portuguese
- waº
- distrito
French
- circonscription
- arrondissement
| 3475 | 2001 Kanji |
| 2t2.1 | The Kanji Dictionary |
| 3-2-2 | SKIP code |
| 7171.4 | Four corner code |
| 1-22-72 | JIS X 0208-1997 kuten code |
| 533a | Unicode hex code |
Jōyō kanji, taught in grade 2
JLPT level N3
44 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 内 【ナイ】 within ..., inside ...
- 内科 【ナイカ】 internal medicine, department of internal medicine
- 党内 【トウナイ】 party-internal, within the party
- 校内 【コウナイ】 within a school
- 内裏 【ダイリ】 imperial palace, festival dolls representing the emperor and the empress
- 内府 【ナイフ】 Minister of the Interior (669-1868), Lord Keeper of the Privy Seal (1885-1945)
- 境内 【ケイダイ】 grounds (esp. of shrines and temples), compound, churchyard, precincts
- 海内 【カイダイ】 the whole country
Kun reading compounds
- 内 【うち】 inside, within, while (e.g. one is young), during, within (e.g. a day), in the course of, among, amongst, (out) of, between, in (secret, chaos, poverty, etc.), amidst, with (e.g. success), within oneself, one's feelings, inner thoughts, we, our company, our organization, one's home, one's family, my spouse, my husband, my wife, signed on behalf of (husband's name) by his wife, I, me, imperial palace grounds, emperor
- 内々 【うちうち】 private, confidential, informal, secret, (within the) family circle, (on the) inside
- 幕内 【まくうち】 makuuchi, top division (of professional sumo)
- お家 【おうち】 your home, your family, their home, their family, (my) home
Readings
- Japanese names:
- いと、 ただ、 ち、 のち
- Korean:
- nae, nab
Spanish
- interior
- dentro de
- privado
Portuguese
- interior
- dentro
- entre
- dentre
- casa
French
- intérieur
- dedans
- entre
- parmi
- maison
| 489 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 207 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 364 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 51 | A New Dictionary of Kanji Usage |
| 82 | Classic Nelson (Andrew Nelson) |
| 132 | Essential Kanji (P.G. O’Neill) |
| 345 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 81 | Japanese Names (P.G. O’Neill) |
| 2.4 | Japanese for Busy People |
| 84 | Kanji and Kana (Spahn and Hadamitzky) |
| 84 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 152 | Kanji in Context (Nishiguchi and Kono) |
| 160 | Kodansha Compact Kanji Guide |
| 4277 | Kodansha Kanji Dictionary (Jack Halpern) |
| 2162 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 2914 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1028 | Les Kanjis dans la tete (Yves Maniette) |
| 1512 | Morohashi |
| 3466 | New Japanese English Character Dictionary (Jack Halpern) |
| 386 | New Nelson (John Haig) |
| 1019 | Remembering The Kanji (James Heisig) |
| 1095 | Remembering The Kanji, 6th edition (James Heisig) |
| 77 | The Kanji Way to Japanese Language Power (Dale Crowley) |
| 99 | Tuttle Kanji Cards (Alexander Kask) |
| 1653 | 2001 Kanji |
| 0a4.23 | The Kanji Dictionary |
| 4-4-4 | SKIP code |
| 4022.7 | Four corner code |
| 1-38-66 | JIS X 0208-1997 kuten code |
| 5185 | Unicode hex code |