What is the correct name for one of the university buildings?

Question

IT terminology

There are buildings of the institute, the main one in the center and 4 along the perimeter, connected by passages with the main building. What is the correct name in Russian and English for these peripheral buildings? Educational building / Wing / Building - a bit different.
There was such a good term in the American language, something related to colleges or institutes, but I just can’t remember.

Answer 1

campus? but it's a bit different.

Answer 2

Building - in Russian this is a building.
In one Moscow academy, just a similar layout - buildings with transitions. There they are called hulls.