| 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 6
JLPT level N2
1139 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 宝飾 【ホウショク】 jewels and ornaments, jewelry, jewellery
- 宝庫 【ホウコ】 treasury, treasure house, storehouse, repository, treasure trove, rich source (of)
- 人間国宝 【ニンゲンコクホウ】 living national treasure
- 至宝 【シホウ】 greatest treasure, most valuable asset, pride (of)
Kun reading compounds
- 宝 【たから】 treasure
- 宝くじ 【たからくじ】 lottery, lottery ticket
- お宝 【おたから】 treasure, precious article, valuable possession, thing one treasures, picture of a treasure ship, money, cash
- 正直は一生の宝 【しょうじきはいっしょうのたから】 honesty is the best policy
Readings
- Japanese names:
- ほ
- Korean:
- bo
Spanish
- tesoro
- bienes de valor
Portuguese
- tesouro
- riqueza
- valores
French
- trésor
- richesses
- objets de valeur
| 983 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 971 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 661 | A New Dictionary of Kanji Usage |
| 1293 | Classic Nelson (Andrew Nelson) |
| 981 | Essential Kanji (P.G. O’Neill) |
| 465 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 676 | Japanese Names (P.G. O’Neill) |
| 296 | Kanji and Kana (Spahn and Hadamitzky) |
| 296 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 576 | Kanji in Context (Nishiguchi and Kono) |
| 474 | Kodansha Compact Kanji Guide |
| 2764 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1415 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 1910 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 263 | Les Kanjis dans la tete (Yves Maniette) |
| 7122 | Morohashi |
| 2224 | New Japanese English Character Dictionary (Jack Halpern) |
| 1320 | New Nelson (John Haig) |
| 257 | Remembering The Kanji (James Heisig) |
| 273 | Remembering The Kanji, 6th edition (James Heisig) |
| 874 | Tuttle Kanji Cards (Alexander Kask) |
| 772 | 2001 Kanji |
| 3m5.2 | The Kanji Dictionary |
| 2-3-5 | SKIP code |
| 3010.3 | Four corner code |
| 1-42-85 | JIS X 0208-1997 kuten code |
| 5b9d | Unicode hex code |