- 1. open
 - ♦ ~门 open a door
 - ♦ 幕~。 The curtain rises.
 - ♦ 某某~ to be opened by so-and-so; to so-and-so (written on an envelope of a personal letter)
 - 2. start; initiate
 - ♦ 启行
 - 3. enlighten; awaken
 - ♦ 启发
 - 4. 
书 state; inform - ♦ 某某~ by so-and-so (closing words of a letter)