9 strokes
                                                    
                        Jouyou kanji
            Taught in 5th grade
    
                                                    JLPT exam level N2
                                            thick, heavy, rich, kind, cordial, brazen, shameless
Kun'yomi
- あ - つ - い - thick ②kind ③serious (of an illness) ④abundant 
- あか 
On'yomi
- コウ 
Nanori
- あ 
- あっ 
Character Breakdown
References
| Unicode hex code | 539A | 
| JIS X 0208 | 1-24-92 | 
| Nelson, A. Classic Nelson | 824 | 
| Haig, J. New Nelson Japanese-English Character Dictionary | 651 | 
| Halpern, J. New Japanese-English Character Dictionary | 3003 | 
| Halpern, J. Kodansha Kanji Dictionary | 3726 | 
| Halpern, J. Kanji Learners Dictionary (Kodansha) | 1905 | 
| Halpern, J. Kanji Learners Dictionary (Kodansha), 2nd edition (2013) | 2588 | 
| Heisig, J. Remembering The Kanji | 125 | 
| Heisig, J. Remembering The Kanji, Sixth Ed. | 132 | 
| Gakken A New Dictionary of Kanji Usage | 774 | 
| O'Neill, P.G. Japanese Names | 985 | 
| O'Neill, P.G. Essential Kanji | 735 | 
| Morohashi Daikanwajiten | 2949 | 
| Henshall, K. A Guide To Remembering Japanese Characters | 672 | 
| Spahn and Hadamitzky Kanji and Kana | 639 | 
| Spahn and Hadamitzky Kanji and Kana (2011 edition) | 649 | 
| Sakade, F. A Guide To Reading and Writing Japanese | 606 | 
| Hodges & Okazaki Japanese Kanji Flashcards | 387 | 
| Henshall & De Groot A Guide To Reading and Writing Japanese, 3rd ed. | 698 | 
| Kask, A. Tuttle Kanji Cards | 698 | 
| Nishiguchi & Kono Kanji in Context | 848 | 
| Kodansha Kodansha Compact Kanji Guide | 258 | 
| Maniette, Y. Les Kanjis dans la tete | 127 | 
| Tuttle Dictionary Descriptor Code | 2p6.1 | 
| Four corner code | 7124.7 | 
| De Roo Code | 3347 |