When the school was founded, the school site was a large open depression (lakes and swamps formed by perennial water accumulation), which was called Nankai depression at that time, so the school removed the word "depression" and named it Nankai.

Later, the urban area where Nankai University was located was also named Nankai District.

Later, it developed the meaning of "the harder it is to develop". Nankai was originally an open area in the south of Tianjin, but later it developed with the increase of Tianjin population.

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In Tianjin, similar place names include "open to the west", "open to the north" and "open to the west".

At the end of the Qing Dynasty, Mr. Zhang Boling ran a school to rejuvenate the country, and Mr. Xu Ju, a Tianjin squire, donated dozens of acres of vegetable fields located in Nankai as the school site.

Tang (now Nankai Middle School) got its name from this.

Later, Mr. Zhang founded a university in Balitai, but he still used the name "Nankai" and called it "Nankai University".

Now people in Tianjin are talking about topics related to education.

At that time, Nankai Middle School was generally called "Nankai" and Nankai University was called "Nanda".