13 strokes
                                                    
                        Jouyou kanji
            Taught in 6th grade
    
                                                    JLPT exam level N1
                                            sincerity, admonish, warn, prohibit, truth, fidelity
Kun'yomi
- ま - こ - と - truth ②sincerity ③indeed 
On'yomi
- セイ 
Nanori
- きよ 
- さと 
- しげ 
- とも 
- のぶ 
- ま 
- まこ 
- まさ 
Character Breakdown
sincerity, admonish, warn
まこと セイ きよ (6th, N1)
say, word
い.う こと ゲン (2nd, N4)
References
| Unicode hex code | 8AA0 | 
| JIS X 0208 | 1-32-31 | 
| Nelson, A. Classic Nelson | 4352 | 
| Haig, J. New Nelson Japanese-English Character Dictionary | 5606 | 
| Halpern, J. New Japanese-English Character Dictionary | 1523 | 
| Halpern, J. Kodansha Kanji Dictionary | 1922 | 
| Halpern, J. Kanji Learners Dictionary (Kodansha) | 1023 | 
| Halpern, J. Kanji Learners Dictionary (Kodansha), 2nd edition (2013) | 1382 | 
| Heisig, J. Remembering The Kanji | 363 | 
| Heisig, J. Remembering The Kanji, Sixth Ed. | 388 | 
| Gakken A New Dictionary of Kanji Usage | 1244 | 
| O'Neill, P.G. Japanese Names | 1935 | 
| O'Neill, P.G. Essential Kanji | 745 | 
| Morohashi Daikanwajiten | 35497P | 
| Henshall, K. A Guide To Remembering Japanese Characters | 912 | 
| Spahn and Hadamitzky Kanji and Kana | 718 | 
| Spahn and Hadamitzky Kanji and Kana (2011 edition) | 731 | 
| Sakade, F. A Guide To Reading and Writing Japanese | 825 | 
| Hodges & Okazaki Japanese Kanji Flashcards | 1758 | 
| Henshall & De Groot A Guide To Reading and Writing Japanese, 3rd ed. | 923 | 
| Kask, A. Tuttle Kanji Cards | 963 | 
| Nishiguchi & Kono Kanji in Context | 943 | 
| Kodansha Kodansha Compact Kanji Guide | 1683 | 
| Maniette, Y. Les Kanjis dans la tete | 369 | 
| Tuttle Dictionary Descriptor Code | 7a6.3 | 
| Four corner code | 0365.0 | 
| De Roo Code | 3059 |