| 853 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 960 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 949 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 442 | A New Dictionary of Kanji Usage |
| 5038 | Classic Nelson (Andrew Nelson) |
| 800 | Essential Kanji (P.G. O’Neill) |
| 995 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 2760 | Japanese Names (P.G. O’Neill) |
| 557 | Kanji and Kana (Spahn and Hadamitzky) |
| 566 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 526 | Kanji in Context (Nishiguchi and Kono) |
| 1856 | Kodansha Compact Kanji Guide |
| 2310 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1196 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 1632 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1594 | Les Kanjis dans la tete (Yves Maniette) |
| 42128P | Morohashi |
| 1838 | New Japanese English Character Dictionary (Jack Halpern) |
| 6515 | New Nelson (John Haig) |
| 1580 | Remembering The Kanji (James Heisig) |
| 1703 | Remembering The Kanji, 6th edition (James Heisig) |
| 351 | The Kanji Way to Japanese Language Power (Dale Crowley) |
| 1003 | Tuttle Kanji Cards (Alexander Kask) |
difficult, impossible, trouble, accident, defect
Jōyō kanji, taught in grade 6
JLPT level N3
330 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 難 【ナン】 difficulty, trouble, hardship, shortage, accident, disaster, danger, fault, defect, flaw, criticism, charge, blame
- 難解 【ナンカイ】 difficult to understand, unintelligible, abstruse
- 至難 【シナン】 most difficult, next to impossible
- 海難 【カイナン】 accident at sea, sea disaster, shipwreck
Kun reading compounds
- 難い 【かたい】 difficult, hard
- 難しい 【むずかしい】 difficult, hard, troublesome, complicated, serious (disease, problem, etc.), impossible, unfeasible, fussy, particular, fastidious, hard to please, displeased, gloomy, glum, sullen, serious (look), dirty, unclean, filthy, detestable, unpleasant, uncomfortable, creepy, spooky
- 難しい顔をする 【むずかしいかおをする】 to look displeased, to frown, to scowl, to look grave, to look serious
- 難しい 【むずかしい】 difficult, hard, troublesome, complicated, serious (disease, problem, etc.), impossible, unfeasible, fussy, particular, fastidious, hard to please, displeased, gloomy, glum, sullen, serious (look), dirty, unclean, filthy, detestable, unpleasant, uncomfortable, creepy, spooky
Readings
- Japanese names:
- な、 なに
- Korean:
- nan, na
Spanish
- desastre
- dificultad
- sufrimiento
- ataque al punto débil
- difícil
- imposible
Portuguese
- impossível
- difícil
- dificuldade
- acidente
- defeito
French
- difficile
- impossible
- problème
- accident
- défaut
| 1975 | 2001 Kanji |
| 8c10.2 | The Kanji Dictionary |
| 1-10-8 | SKIP code |
| 4051.4 | Four corner code |
| 1-38-81 | JIS X 0208-1997 kuten code |
| 96e3 | Unicode hex code |
Jōyō kanji, taught in grade 3
JLPT level N2
740 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 波 【ハ】 counter for waves (of a repeated occurrence)
- 波及 【ハキュウ】 spread, extension, influence, aftereffect, ripple
- 低周波 【テイシュウハ】 low frequency
- 横波 【ヨコナミ】 transverse wave, beam sea
Kun reading compounds
- 波 【なみ】 wave, ups and downs
- 波間 【なみま】 interval between the waves, gap between waves
- 高波 【たかなみ】 high waves, heavy seas
- 横波 【よこなみ】 transverse wave, beam sea
Readings
- Japanese names:
- ひら、 みな、 みなみ、 わ
- Korean:
- pa
Spanish
- onda
- ola
- Polonia
Portuguese
- ondas
- vagas
- Polônia
French
- onde
- vague
- Pologne
| 298 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 387 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 367 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 606 | A New Dictionary of Kanji Usage |
| 2529 | Classic Nelson (Andrew Nelson) |
| 484 | Essential Kanji (P.G. O’Neill) |
| 677 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 596 | Japanese Names (P.G. O’Neill) |
| 666 | Kanji and Kana (Spahn and Hadamitzky) |
| 677 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 913 | Kanji in Context (Nishiguchi and Kono) |
| 1177 | Kodansha Compact Kanji Guide |
| 388 | Kodansha Kanji Dictionary (Jack Halpern) |
| 245 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 292 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 811 | Les Kanjis dans la tete (Yves Maniette) |
| 17308 | Morohashi |
| 330 | New Japanese English Character Dictionary (Jack Halpern) |
| 3101 | New Nelson (John Haig) |
| 803 | Remembering The Kanji (James Heisig) |
| 866 | Remembering The Kanji, 6th edition (James Heisig) |
| 309 | Tuttle Kanji Cards (Alexander Kask) |
| 367 | 2001 Kanji |
| 3a5.9 | The Kanji Dictionary |
| 1-3-5 | SKIP code |
| 3414.7 | Four corner code |
| 1-39-40 | JIS X 0208-1997 kuten code |
| 6ce2 | Unicode hex code |
Jōyō kanji, taught in grade 3
JLPT level N4
336 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 研究員 【ケンキュウイン】 researcher, lab worker
- 研究 【ケンキュウ】 study, research, investigation
- 予研 【ヨケン】 National Institute of Health
- 技研 【ギケン】 technical research institute
Kun reading compounds
- 研ぐ 【とぐ】 to sharpen, to hone, to whet, to grind, to wash (rice), to scour, to polish, to burnish
Readings
- Japanese names:
- のり
- Korean:
- yeon
Spanish
- estudio
- afilar
- pulir
Portuguese
- polir
- estudar
- afiar
French
- polir
- étudier
- aiguiser
| 204 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 290 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 272 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 426 | A New Dictionary of Kanji Usage |
| 3180 | Classic Nelson (Andrew Nelson) |
| 583 | Essential Kanji (P.G. O’Neill) |
| 231 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 875 | Japanese Names (P.G. O’Neill) |
| 2.8 | Japanese for Busy People |
| 896 | Kanji and Kana (Spahn and Hadamitzky) |
| 918 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 297 | Kanji in Context (Nishiguchi and Kono) |
| 1398 | Kodansha Compact Kanji Guide |
| 1456 | Kodansha Kanji Dictionary (Jack Halpern) |
| 771 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 1046 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 682 | Les Kanjis dans la tete (Yves Maniette) |
| 24080 | Morohashi |
| 1132 | New Japanese English Character Dictionary (Jack Halpern) |
| 3991 | New Nelson (John Haig) |
| 675 | Remembering The Kanji (James Heisig) |
| 729 | Remembering The Kanji, 6th edition (James Heisig) |
| 284 | The Kanji Way to Japanese Language Power (Dale Crowley) |
| 325 | Tuttle Kanji Cards (Alexander Kask) |
| 3355 | 2001 Kanji |
| 5a4.1 | The Kanji Dictionary |
| 1-5-4 | SKIP code |
| 1164.0 | Four corner code |
| 1-24-06 | JIS X 0208-1997 kuten code |
| 7814 | Unicode hex code |