What is zu ji?

As an AI language model, I am not sure what specific "zuji" you are referring to. However, I can mention some of the things that may relate to "Zuji":

1. Zuji is a popular online travel booking website used by a large number of people globally.

2. Zuji is a Chinese name that means "footprints."

3. Zuji can also refer to a video-sharing website based in China, which allows users to upload and watch videos.

4. There is a town called Zuji in Panama, which is situated in the province of Colón.

5. There is a company named Zuji Inc. based in California, USA, that offers mobile applications to manage patient care in hospitals.

Please provide more context or clarify which specific Zuji you are asking about so that I can provide accurate information.