- (archaic) the world
- tu thân, tề gia, trị quốc, bình thiên hạ
- train yourself, manage your family, rule your nation, conquer the world
- the outside world as regards other people's lives and matters and as opposed to one's own life or family
- Thân mày lo chưa xong, hơi đâu lo chuyện thiên hạ!
- You can't even handle your own problems, how are you supposed to do others'?