- KangXi: page 178, character 21
- Dai Kanwa Jiten: character 3357
- Dae Jaweon: page 396, character 7
- Hanyu Da Zidian: volume 1, page 594, character 10
- Unihan data for U+542F
|For pronunciation and definitions of 启 – see 啟 (“to open; to enlighten; to educate; to inspire; etc.”).
(This character, 启, is the simplified and variant form of 啟.)