| 55 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 94 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 88 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 158 | A New Dictionary of Kanji Usage |
| 2553 | Classic Nelson (Andrew Nelson) |
| 99 | Essential Kanji (P.G. O’Neill) |
| 211 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 1071 | Japanese Names (P.G. O’Neill) |
| 3.14 | Japanese for Busy People |
| 117 | Kanji and Kana (Spahn and Hadamitzky) |
| 117 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 454 | Kanji in Context (Nishiguchi and Kono) |
| 1184 | Kodansha Compact Kanji Guide |
| 459 | Kodansha Kanji Dictionary (Jack Halpern) |
| 284 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 344 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 471 | Les Kanjis dans la tete (Yves Maniette) |
| 17450 | Morohashi |
| 384 | New Japanese English Character Dictionary (Jack Halpern) |
| 3133 | New Nelson (John Haig) |
| 461 | Remembering The Kanji (James Heisig) |
| 500 | Remembering The Kanji, 6th edition (James Heisig) |
| 206 | The Kanji Way to Japanese Language Power (Dale Crowley) |
| 171 | Tuttle Kanji Cards (Alexander Kask) |
Jōyō kanji, taught in grade 2
JLPT level N4
200 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 海運 【カイウン】 maritime transport, shipping
- 海域 【カイイキ】 area of ocean
- 公海 【コウカイ】 high seas, international waters
- 内海 【ナイカイ】 inland sea, inlet, gulf, bay, lake
Kun reading compounds
- 海 【うみ】 sea, ocean, waters
- 海辺 【うみべ】 beach, seashore, seaside, coast
- 内海 【ないかい】 inland sea, inlet, gulf, bay, lake
- 血の海 【ちのうみ】 sea of blood, pool of blood
Readings
- Japanese names:
- あ、 あま、 うな、 うん、 え、 か、 た、 ひろ、 ひろし、 ぶ、 まち、 まま、 み、 め、 わたる
- Korean:
- hae
Spanish
- mar
- océano
- playa
Portuguese
- oceano
- mar
French
- mer
- océan
| 347 | 2001 Kanji |
| 3a6.20 | The Kanji Dictionary |
| 1-3-6 | SKIP code |
| 3815.7 | Four corner code |
| 1-19-04 | JIS X 0208-1997 kuten code |
| 6d77 | Unicode hex code |
Jōyō kanji, taught in grade 5
JLPT level N2
346 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 境 【サカイ】 border, boundary, turning point, watershed, area, region, spot, space, environment, psychological state, mental state, cognitive object, something perceptible by the sense organs or mind
- 境界 【キョウカイ】 boundary, border, limit, bounds, frontier
- 越境 【エッキョウ】 crossing a border (illegally), border violation, border transgression
- 推奨環境 【スイショウカンキョウ】 system requirements (i.e. recommended hardware and software to run a package)
- 境内 【ケイダイ】 grounds (esp. of shrines and temples), compound, churchyard, precincts
- 境界 【ケイカイ】 land boundary, border (between properties)
Kun reading compounds
- 境 【さかい】 border, boundary, turning point, watershed, area, region, spot, space, environment, psychological state, mental state, cognitive object, something perceptible by the sense organs or mind
- 境目 【さかいめ】 borderline, boundary
- 生死の境 【せいしのさかい】 between life and death
Readings
- Japanese names:
- さか、 じき
- Korean:
- gyeong
Spanish
- límite
- frontera
- región
- circunstancia
- borde
Portuguese
- limite
- borda
- região
French
- frontière
- région
- environnement
| 761 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 680 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 651 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 792 | A New Dictionary of Kanji Usage |
| 1135 | Classic Nelson (Andrew Nelson) |
| 751 | Essential Kanji (P.G. O’Neill) |
| 440 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 2076 | Japanese Names (P.G. O’Neill) |
| 864 | Kanji and Kana (Spahn and Hadamitzky) |
| 883 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 1036 | Kanji in Context (Nishiguchi and Kono) |
| 387 | Kodansha Compact Kanji Guide |
| 835 | Kodansha Kanji Dictionary (Jack Halpern) |
| 482 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 618 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 495 | Les Kanjis dans la tete (Yves Maniette) |
| 5409 | Morohashi |
| 676 | New Japanese English Character Dictionary (Jack Halpern) |
| 1085 | New Nelson (John Haig) |
| 484 | Remembering The Kanji (James Heisig) |
| 523 | Remembering The Kanji, 6th edition (James Heisig) |
| 787 | Tuttle Kanji Cards (Alexander Kask) |
| 1457 | 2001 Kanji |
| 3b11.1 | The Kanji Dictionary |
| 1-3-11 | SKIP code |
| 4011.6 | Four corner code |
| 1-22-13 | JIS X 0208-1997 kuten code |
| 5883 | Unicode hex code |