| 867 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) | 
| 856 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) | 
| 640 | A New Dictionary of Kanji Usage | 
| 914 | Classic Nelson (Andrew Nelson) | 
| 1000 | Essential Kanji (P.G. O’Neill) | 
| 410 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) | 
| 571 | Japanese Names (P.G. O’Neill) | 
| 1254 | Kanji and Kana (Spahn and Hadamitzky) | 
| 1325 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) | 
| 197 | Kanji in Context (Nishiguchi and Kono) | 
| 301 | Kodansha Compact Kanji Guide | 
| 324 | Kodansha Kanji Dictionary (Jack Halpern) | 
| 205 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) | 
| 246 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) | 
| 1497 | Les Kanjis dans la tete (Yves Maniette) | 
| 3471 | Morohashi | 
| 273 | New Japanese English Character Dictionary (Jack Halpern) | 
| 769 | New Nelson (John Haig) | 
| 1485 | Remembering The Kanji (James Heisig) | 
| 1597 | Remembering The Kanji, 6th edition (James Heisig) | 
| 862 | Tuttle Kanji Cards (Alexander Kask) | 
      Jōyō kanji, taught in grade 6
    
    
      JLPT level N3
    
    
      498 of 2500 most used kanji in newspapers
    
Stroke order
On reading compounds
- 呼吸 【コキュウ】 breathing, respiration, knack, trick, secret (of doing something), harmony, balance, synchronization, accord, short interval, short pause
 - 呼応 【コオウ】 hailing each other, acting in concert, responding (to), sympathizing (with), agreement, concord
 - 連呼 【レンコ】 calling repeatedly (e.g. someone's name), pronouncing successively (usu. repeating a syllable with voicing, as in "tsuzuku")
 - 点呼 【テンコ】 roll-call, muster
 
Kun reading compounds
- 呼ぶ 【よぶ】 to call out (to), to call, to invoke, to summon (a doctor, etc.), to invite, to designate, to name, to brand, to garner (support, etc.), to gather, to take as one's wife
 - 呼ぶ子 【よぶこ】 whistle
 
Readings
- Japanese names:
 - よぶ
 
- Korean:
 - ho
 
Spanish
- llamar
 - aspirar
 
Portuguese
- chamada
 - chamar para
 - convidar
 
French
- appeler
 - inviter
 
| 3747 | 2001 Kanji | 
| 3d5.4 | The Kanji Dictionary | 
| 1-3-5 | SKIP code | 
| 6204.9 | Four corner code | 
| 1-24-38 | JIS X 0208-1997 kuten code | 
| 547c | Unicode hex code | 
      Jōyō kanji, taught in grade 6
    
    
      JLPT level N3
    
    
      1054 of 2500 most used kanji in newspapers
    
Stroke order
On reading compounds
- 吸収 【キュウシュウ】 absorption, suction, attraction
 - 吸血鬼 【キュウケツキ】 vampire, bloodsucker
 - 腹式呼吸 【フクシキコキュウ】 diaphragmatic breathing, abdominal breathing
 - 外呼吸 【ガイコキュウ】 external respiration
 
Kun reading compounds
- 吸う 【すう】 to smoke, to breathe in, to inhale, to suck, to sip, to slurp, to absorb, to soak up, to kiss
 
Readings
- Korean:
 - heub
 
Spanish
- aspirar
 - absorber
 - chupar
 - fumar
 
Portuguese
- chupar
 - inalar
 - sugar
 
French
- aspirer
 - absorber
 - inhaler
 - siroter
 
| 849 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) | 
| 837 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) | 
| 1133 | A New Dictionary of Kanji Usage | 
| 885 | Classic Nelson (Andrew Nelson) | 
| 1083 | Essential Kanji (P.G. O’Neill) | 
| 406 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) | 
| 1256 | Kanji and Kana (Spahn and Hadamitzky) | 
| 1327 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) | 
| 272 | Kanji in Context (Nishiguchi and Kono) | 
| 296 | Kodansha Compact Kanji Guide | 
| 234 | Kodansha Kanji Dictionary (Jack Halpern) | 
| 150 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) | 
| 179 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) | 
| 696 | Les Kanjis dans la tete (Yves Maniette) | 
| 3372P | Morohashi | 
| 202 | New Japanese English Character Dictionary (Jack Halpern) | 
| 713 | New Nelson (John Haig) | 
| 689 | Remembering The Kanji (James Heisig) | 
| 744 | Remembering The Kanji, 6th edition (James Heisig) | 
| 843 | Tuttle Kanji Cards (Alexander Kask) | 
| 3767 | 2001 Kanji | 
| 3d3.5 | The Kanji Dictionary | 
| 1-3-3 | SKIP code | 
| 1-3-4 | SKIP code | 
| 6704.7 | Four corner code | 
| 1-21-59 | JIS X 0208-1997 kuten code | 
| 5438 | Unicode hex code | 
      Jōyō kanji, taught in grade 6
    
    
      JLPT level N3
    
    
      843 of 2500 most used kanji in newspapers
    
Stroke order
On reading compounds
- 困惑 【コンワク】 bewilderment, perplexity, embarrassment, discomfiture, bafflement
 - 困難 【コンナン】 difficulty, hardship, trouble, distress, infeasibility, inability (to carry out)
 - 絶対貧困 【ゼッタイヒンコン】 absolute poverty
 - 絶対的貧困 【ゼッタイテキヒンコン】 absolute poverty
 
Kun reading compounds
- 困る 【こまる】 to be troubled, to have difficulty, to be in a fix, to be at a loss, to be stumped, to be embarrassed, to be bothered, to be inconvenienced, to be annoyed, to be badly off, to be hard up, to be in straitened circumstances
 
Readings
- Korean:
 - gon
 
Spanish
- dificultades
 - preocupaciones
 - sufrir
 - afligirse
 - hallarse en apuros
 
Portuguese
- dúvida
 - torna-se angustiado
 - aborrecido
 - incerteza
 - dilema
 
French
- embarras
 - affligé
 - ennuyé
 
| 878 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) | 
| 868 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) | 
| 860 | A New Dictionary of Kanji Usage | 
| 1033 | Classic Nelson (Andrew Nelson) | 
| 969 | Essential Kanji (P.G. O’Neill) | 
| 422 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) | 
| 3.9 | Japanese for Busy People | 
| 558 | Kanji and Kana (Spahn and Hadamitzky) | 
| 567 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) | 
| 254 | Kanji in Context (Nishiguchi and Kono) | 
| 341 | Kodansha Compact Kanji Guide | 
| 3808 | Kodansha Kanji Dictionary (Jack Halpern) | 
| 1950 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) | 
| 2644 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) | 
| 586 | Les Kanjis dans la tete (Yves Maniette) | 
| 4717 | Morohashi | 
| 3070 | New Japanese English Character Dictionary (Jack Halpern) | 
| 946 | New Nelson (John Haig) | 
| 579 | Remembering The Kanji (James Heisig) | 
| 621 | Remembering The Kanji, 6th edition (James Heisig) | 
| 437 | The Kanji Way to Japanese Language Power (Dale Crowley) | 
| 851 | Tuttle Kanji Cards (Alexander Kask) | 
| 1864 | 2001 Kanji | 
| 3s4.1 | The Kanji Dictionary | 
| 3-3-4 | SKIP code | 
| 6090.4 | Four corner code | 
| 1-26-04 | JIS X 0208-1997 kuten code | 
| 56f0 | Unicode hex code | 
      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
 - 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
 
| 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) | 
| 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 |