The explanation of the ivory tower in the dictionary is that it is a metaphor for the small world of writers and artists who are divorced from the relevant information of real life. Also called ivory pagoda.

Nowadays, more and more people refer to the university campus with the ivory tower, which is a metonymic rhetoric. With the disappearance of feudal society, universities have become more and more popular. In the complicated society, the campus is still a pure land, especially the university is a place with relatively high cultural and scientific level, which can naturally be called "beautiful ivory tower".