| 757 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 848 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 835 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 608 | A New Dictionary of Kanji Usage |
| 755 | Classic Nelson (Andrew Nelson) |
| 752 | Essential Kanji (P.G. O’Neill) |
| 748 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 1516 | Kanji and Kana (Spahn and Hadamitzky) |
| 1617 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 693 | Kanji in Context (Nishiguchi and Kono) |
| 1347 | Kodansha Compact Kanji Guide |
| 1970 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1050 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 1416 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1422 | Les Kanjis dans la tete (Yves Maniette) |
| 22007 | Morohashi |
| 1565 | New Japanese English Character Dictionary (Jack Halpern) |
| 3777 | New Nelson (John Haig) |
| 1410 | Remembering The Kanji (James Heisig) |
| 1513 | Remembering The Kanji, 6th edition (James Heisig) |
| 488 | The Kanji Way to Japanese Language Power (Dale Crowley) |
| 971 | Tuttle Kanji Cards (Alexander Kask) |
Jōyō kanji, taught in grade 6
JLPT level N3
283 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 疑 【ギ】 doubt, distrust, suspicion (of)
- 疑義 【ギギ】 doubt
- 質疑 【シツギ】 question, interpellation
- 懐疑 【カイギ】 doubt, skepticism, scepticism, disbelief
Kun reading compounds
- 疑う 【うたがう】 to doubt, to distrust, to be suspicious of, to suspect
Readings
- Korean:
- eui, ung
Spanish
- duda
- desconfianza
- sospecha
- dudar
- desconfiar
- sospechar
Portuguese
- dúvida
- desconfiança
- é suspeito
- pergunta
French
- douter
- méfiance
- soupçon
- question
| 1270 | 2001 Kanji |
| 2m12.1 | The Kanji Dictionary |
| 1-7-7 | SKIP code |
| 2748.1 | Four corner code |
| 1-21-31 | JIS X 0208-1997 kuten code |
| 7591 | Unicode hex code |
Jōyō kanji, taught in grade 3
JLPT level N3
484 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 深刻 【シンコク】 serious, severe, grave, acute
- 深海 【シンカイ】 deep sea, depths of the sea, ocean depths
- 以深 【イシン】 ... or deeper, ... and below
- 海深 【カイシン】 depth of the sea
Kun reading compounds
- 深い 【ふかい】 deep, profound, dense, thick, close (relationship), intense, strong, late
- 深入り 【ふかいり】 getting deeply involved, going deeply into, going too far (into something)
- 深まる 【ふかまる】 to deepen, to heighten, to intensify
- 深める 【ふかめる】 to deepen, to heighten, to intensify
Readings
- Korean:
- sim
Spanish
- profundo
- hondo
- profundizar
- profundizar en
Portuguese
- fundo
- aumentar
- intensificar
- fortalecer
French
- profond
- augmenter
- intensifier
- renforcer
| 258 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 342 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 325 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 552 | A New Dictionary of Kanji Usage |
| 2606 | Classic Nelson (Andrew Nelson) |
| 593 | Essential Kanji (P.G. O’Neill) |
| 690 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 1341 | Japanese Names (P.G. O’Neill) |
| 536 | Kanji and Kana (Spahn and Hadamitzky) |
| 545 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 121 | Kanji in Context (Nishiguchi and Kono) |
| 1212 | Kodansha Compact Kanji Guide |
| 636 | Kodansha Kanji Dictionary (Jack Halpern) |
| 385 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 480 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1339 | Les Kanjis dans la tete (Yves Maniette) |
| 17687 | Morohashi |
| 524 | New Japanese English Character Dictionary (Jack Halpern) |
| 3206 | New Nelson (John Haig) |
| 1328 | Remembering The Kanji (James Heisig) |
| 1426 | Remembering The Kanji, 6th edition (James Heisig) |
| 424 | The Kanji Way to Japanese Language Power (Dale Crowley) |
| 377 | Tuttle Kanji Cards (Alexander Kask) |
| 364 | 2001 Kanji |
| 3a8.21 | The Kanji Dictionary |
| 1-3-8 | SKIP code |
| 3719.4 | Four corner code |
| 1-31-28 | JIS X 0208-1997 kuten code |
| 6df1 | Unicode hex code |