Noun
carbon dioxide; CO2
樹木は酸素を排出し、二酸化炭素を吸収する。Trees give off oxygen and absorb carbon dioxide.
Characters in this word
5二
Strokes: KanjiVG, CC BY-SA 3.0
two, two radical (no. 7)
- Kun
- ふたふた.つふたたび
- On
- ニジ
- Strokes
- 2
- Taught
- Grade 1
- JLPT
- N5
- Frequency
- 9 of 2500
- Radical
- 二 two
- WaniKani
- Level 1
Built from
Used in names as
おとつぐつぎにいはふふたつふだわ
Dictionary and index codes (34)
| Code | Reference |
|---|---|
| 2-1-1 | SKIP code |
| 0a2.1 | The Kanji Dictionary |
| 1010.0 | Four corner code |
| 3072 | deroo |
| 4e8c | Unicode hex code |
| 1-38-83 | JIS X 0208-1997 kuten code |
| 273 | Classic Nelson (Andrew Nelson) |
| 72 | New Nelson (John Haig) |
| 1922 | New Japanese-English Character Dictionary (Jack Halpern) |
| 2421 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1224 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 1688 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 2 | Remembering The Kanji (James Heisig) |
| 2 | Remembering The Kanji, 6th edition (James Heisig) |
| 6 | A New Dictionary of Kanji Usage |
| 4 | Japanese Names (P.G. O’Neill) |
| 2 | Essential Kanji (P.G. O’Neill) |
| 247 | Morohashi |
| 61 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 3 | Kanji and Kana (Spahn and Hadamitzky) |
| 3 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 2 | sakade |
| 9 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 2 | henshall3 |
| 2 | Tuttle Kanji Cards (Alexander Kask) |
| 11 | crowley |
| 2 | Kanji in Context (Nishiguchi and Kono) |
| 1.A | busy_people |
| 31 | Kodansha Compact Kanji Guide |
| 2 | Les Kanjis dans la tête (Yves Maniette) |
| er4 | Pinyin reading |
| i | Korean reading |
| n5 | JLPT level (KANJIDIC2) |
| 1 | WaniKani level |
酸
Strokes: KanjiVG, CC BY-SA 3.0
Dictionary and index codes (31)
| Code | Reference |
|---|---|
| 1-7-7 | SKIP code |
| 7e7.2 | The Kanji Dictionary |
| 1364.7 | Four corner code |
| 3267 | deroo |
| 9178 | Unicode hex code |
| 1-27-32 | JIS X 0208-1997 kuten code |
| 4789 | Classic Nelson (Andrew Nelson) |
| 6177 | New Nelson (John Haig) |
| 1563 | New Japanese-English Character Dictionary (Jack Halpern) |
| 1968 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1049 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 1415 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1437 | Remembering The Kanji (James Heisig) |
| 1545 | Remembering The Kanji, 6th edition (James Heisig) |
| 1027 | A New Dictionary of Kanji Usage |
| 819 | Essential Kanji (P.G. O’Neill) |
| 39871 | Morohashi |
| 689 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 516 | Kanji and Kana (Spahn and Hadamitzky) |
| 525 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 618 | sakade |
| 1838 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 715 | henshall3 |
| 791 | Tuttle Kanji Cards (Alexander Kask) |
| 1420 | Kanji in Context (Nishiguchi and Kono) |
| 1797 | Kodansha Compact Kanji Guide |
| 1449 | Les Kanjis dans la tête (Yves Maniette) |
| suan1 | Pinyin reading |
| san | Korean reading |
| n1 | JLPT level (KANJIDIC2) |
| 32 | WaniKani level |
化
Strokes: KanjiVG, CC BY-SA 3.0
Dictionary and index codes (34)
| Code | Reference |
|---|---|
| 1-2-2 | SKIP code |
| 2a2.6 | The Kanji Dictionary |
| 2421.0, 2121.0 | Four corner code |
| 2156 | deroo |
| 5316 | Unicode hex code |
| 1-18-29 | JIS X 0208-1997 kuten code |
| 350 | Classic Nelson (Andrew Nelson) |
| 580 | New Nelson (John Haig) |
| 21 | New Japanese-English Character Dictionary (Jack Halpern) |
| 22 | Kodansha Kanji Dictionary (Jack Halpern) |
| 12 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 12 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1008 | Remembering The Kanji (James Heisig) |
| 1083 | Remembering The Kanji, 6th edition (James Heisig) |
| 100 | A New Dictionary of Kanji Usage |
| 56 | Japanese Names (P.G. O’Neill) |
| 76 | Essential Kanji (P.G. O’Neill) |
| 2572X | Morohashi |
| 238 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 254 | Kanji and Kana (Spahn and Hadamitzky) |
| 254 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 163 | sakade |
| 378 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 258 | henshall3 |
| 242 | Tuttle Kanji Cards (Alexander Kask) |
| 104 | crowley |
| 414 | Kanji in Context (Nishiguchi and Kono) |
| 3.19 | busy_people |
| 55 | Kodansha Compact Kanji Guide |
| 1017 | Les Kanjis dans la tête (Yves Maniette) |
| hua4 | Pinyin reading |
| hwa | Korean reading |
| n3 | JLPT level (KANJIDIC2) |
| 6 | WaniKani level |
炭
Strokes: KanjiVG, CC BY-SA 3.0
Dictionary and index codes (32)
| Code | Reference |
|---|---|
| 2-3-6, 3-5-4 | SKIP code |
| 3o6.5 | The Kanji Dictionary |
| 2228.9 | Four corner code |
| 1262 | deroo |
| 70ad | Unicode hex code |
| 1-35-26 | JIS X 0208-1997 kuten code |
| 1418 | Classic Nelson (Andrew Nelson) |
| 3413 | New Nelson (John Haig) |
| 2257 | New Japanese-English Character Dictionary (Jack Halpern) |
| 2806 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1445 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 1947 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 771 | Remembering The Kanji (James Heisig) |
| 833 | Remembering The Kanji, 6th edition (James Heisig) |
| 1007 | A New Dictionary of Kanji Usage |
| 1186 | Japanese Names (P.G. O’Neill) |
| 842 | Essential Kanji (P.G. O’Neill) |
| 18953 | Morohashi |
| 341 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 1344 | Kanji and Kana (Spahn and Hadamitzky) |
| 1427 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 274 | sakade |
| 713 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 361 | henshall3 |
| 337 | Tuttle Kanji Cards (Alexander Kask) |
| 875 | Kanji in Context (Nishiguchi and Kono) |
| 1267 | Kodansha Compact Kanji Guide |
| 778 | Les Kanjis dans la tête (Yves Maniette) |
| tan4 | Pinyin reading |
| tan | Korean reading |
| n2 | JLPT level (KANJIDIC2) |
| 41 | WaniKani level |
素
Strokes: KanjiVG, CC BY-SA 3.0
Dictionary and index codes (33)
| Code | Reference |
|---|---|
| 2-4-6 | SKIP code |
| 6a4.12 | The Kanji Dictionary |
| 5090.3 | Four corner code |
| 1441 | deroo |
| 7d20 | Unicode hex code |
| 1-33-39 | JIS X 0208-1997 kuten code |
| 3511 | Classic Nelson (Andrew Nelson) |
| 4456 | New Nelson (John Haig) |
| 2458 | New Japanese-English Character Dictionary (Jack Halpern) |
| 3108 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1590 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 2171 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1532 | Remembering The Kanji (James Heisig) |
| 1652 | Remembering The Kanji, 6th edition (James Heisig) |
| 717 | A New Dictionary of Kanji Usage |
| 1707 | Japanese Names (P.G. O’Neill) |
| 797 | Essential Kanji (P.G. O’Neill) |
| 27300 | Morohashi |
| 737 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 271 | Kanji and Kana (Spahn and Hadamitzky) |
| 271 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 658 | sakade |
| 1623 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 759 | henshall3 |
| 716 | Tuttle Kanji Cards (Alexander Kask) |
| 500 | crowley |
| 636 | Kanji in Context (Nishiguchi and Kono) |
| 1506 | Kodansha Compact Kanji Guide |
| 1546 | Les Kanjis dans la tête (Yves Maniette) |
| su4 | Pinyin reading |
| so | Korean reading |
| n1 | JLPT level (KANJIDIC2) |
| 21 | WaniKani level |