| 376 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 484 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 460 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 159 | A New Dictionary of Kanji Usage |
| 581 | Classic Nelson (Andrew Nelson) |
| 240 | Essential Kanji (P.G. O’Neill) |
| 342 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 292 | Japanese Names (P.G. O’Neill) |
| 196 | Kanji and Kana (Spahn and Hadamitzky) |
| 196 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 419 | Kanji in Context (Nishiguchi and Kono) |
| 154 | Kodansha Compact Kanji Guide |
| 3045 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1551 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 2122 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1812 | Les Kanjis dans la tete (Yves Maniette) |
| 1458 | Morohashi |
| 2393 | New Japanese English Character Dictionary (Jack Halpern) |
| 373 | New Nelson (John Haig) |
| 1795 | Remembering The Kanji (James Heisig) |
| 1934 | Remembering The Kanji, 6th edition (James Heisig) |
| 106 | The Kanji Way to Japanese Language Power (Dale Crowley) |
| 464 | Tuttle Kanji Cards (Alexander Kask) |
Jōyō kanji, taught in grade 4
JLPT level N3
174 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 共演 【キョウエン】 appearing together (in a film, play, etc.), performing together (at a concert, etc.), acting together, co-starring, playing together (in a sports match)
- 共栄 【キョウエイ】 mutual prosperity
- 反共 【ハンキョウ】 anticommunism
- 中共 【チュウキョウ】 Chinese Communist Party, Chinese Communists, Communist China
Kun reading compounds
- 共 【とも】 together with, same, both, all, neither, none, including ...
- 共に 【ともに】 together, jointly, at the same time, with, as ..., including, along with, both
- 送料共 【そうりょうとも】 including postage
- 母子とも 【ぼしとも】 both mother and child
- 共に 【ともに】 together, jointly, at the same time, with, as ..., including, along with, both
- 共にする 【ともにする】 to do together, to share, to participate in
Readings
- Korean:
- gong
Spanish
- ambos
- conjuntamente
- juntos
- también
Portuguese
- juntamente
- ambos (em afirm.)
- nenhum (em neg.)
- todo
- e
- da mesma forma
- com
French
- ensemble
- les deux
- ni l'un ni l'autre
- tous
- et
- semblable
- avec
| 1961 | 2001 Kanji |
| 3k3.3 | The Kanji Dictionary |
| 2-4-2 | SKIP code |
| 2-3-3 | SKIP code |
| 4480.1 | Four corner code |
| 1-22-06 | JIS X 0208-1997 kuten code |
| 5171 | Unicode hex code |
Jōyō kanji, taught in grade 2
JLPT level N4
15 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 同 【ドウ】 the same, the said, likewise
- 同意 【ドウイ】 agreement, consent, approval, assent, same opinion, same view, same meaning
- 合同 【ゴウドウ】 combination, union, joining, incorporation, amalgamation, merger, fusion, combined, joint, united, shared, congruence
- 大同 【ダイドウ】 general resemblance, being largely the same, uniting with a common goal, Daidō era (806.5.18-810.9.19)
Kun reading compounds
- 同じ 【おなじ】 same, identical, equal, alike, equivalent, anyway, in any case, if one must ..., if one has to ..., as long as ...
- 同じく 【おなじく】 in the same way, like, likewise, similarly
Readings
- Korean:
- dong
Spanish
- mismo
- igual
- compañero
- idéntico
- similar
Portuguese
- mesmo
- concorda
- igual
French
- identique
- similaire
- égal
| 295 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 204 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 187 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 23 | A New Dictionary of Kanji Usage |
| 619 | Classic Nelson (Andrew Nelson) |
| 185 | Essential Kanji (P.G. O’Neill) |
| 136 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 298 | Japanese Names (P.G. O’Neill) |
| 2.13 | Japanese for Busy People |
| 198 | Kanji and Kana (Spahn and Hadamitzky) |
| 198 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 350 | Kanji in Context (Nishiguchi and Kono) |
| 320 | Kodansha Compact Kanji Guide |
| 3707 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1897 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 2578 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 182 | Les Kanjis dans la tete (Yves Maniette) |
| 3294 | Morohashi |
| 2987 | New Japanese English Character Dictionary (Jack Halpern) |
| 717 | New Nelson (John Haig) |
| 180 | Remembering The Kanji (James Heisig) |
| 192 | Remembering The Kanji, 6th edition (James Heisig) |
| 54 | The Kanji Way to Japanese Language Power (Dale Crowley) |
| 133 | Tuttle Kanji Cards (Alexander Kask) |
| 3649 | 2001 Kanji |
| 2r4.2 | The Kanji Dictionary |
| 3-2-4 | SKIP code |
| 7722.0 | Four corner code |
| 1-38-17 | JIS X 0208-1997 kuten code |
| 540c | Unicode hex code |
Jōyō kanji, taught in junior high
JLPT level N1
1736 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 溝 【コウ】 10^32, hundred nonillion
- 溝渠 【コウキョ】 ditch, sewer, canal
- 排水溝 【ハイスイコウ】 drainage, gutter, ditch
- 海溝 【カイコウ】 oceanic trench, deep-sea trench, deep
Kun reading compounds
- 溝 【みぞ】 ditch, drain, gutter, trench, groove, tread, indentation, gap (between people, countries, etc.), gulf, rift
- 溝隠 【みぞかくし】 Chinese lobelia (Lobelia chinensis)
- 押さえ溝 【おさえみぞ】 groove in the body of wooden plane which holds the blade
- 逃げ溝 【にげみぞ】 clearance groove, under cut
Readings
- Japanese names:
- どぶ
- Korean:
- gu
Spanish
- cuneta
- zanja
- alcantarilla
- desagüe
Portuguese
- ranhura
- canal
- encanamento
- dreno
- 10 elevado a 32
French
- rigole
- fossé
- égout
- 10**32
| 1263 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 1706 | A New Dictionary of Kanji Usage |
| 2657 | Classic Nelson (Andrew Nelson) |
| 1487 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 1859 | Japanese Names (P.G. O’Neill) |
| 1012 | Kanji and Kana (Spahn and Hadamitzky) |
| 1050 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 1499 | Kanji in Context (Nishiguchi and Kono) |
| 1232 | Kodansha Compact Kanji Guide |
| 810 | Kodansha Kanji Dictionary (Jack Halpern) |
| 473 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 604 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1836 | Les Kanjis dans la tete (Yves Maniette) |
| 17944X | Morohashi |
| 659 | New Japanese English Character Dictionary (Jack Halpern) |
| 3275 | New Nelson (John Haig) |
| 1819 | Remembering The Kanji (James Heisig) |
| 1960 | Remembering The Kanji, 6th edition (James Heisig) |
| 1639 | Tuttle Kanji Cards (Alexander Kask) |
| 347 | 2001 Kanji |
| 3a10.9 | The Kanji Dictionary |
| 1-3-10 | SKIP code |
| 3514.7 | Four corner code |
| 1-25-34 | JIS X 0208-1997 kuten code |
| 6e9d | Unicode hex code |