"Dormitory" means "a big building at a university where students live" in British English.

“宿舍”在英式英语中是“大学里学生住的大楼”的意思。

youdao

I mean, the other students on my course are living in a student dormitory so they see each other all the time.

我的意思是，我这门课的其他学生都住在学生宿舍里，所以他们经常见面。

youdao

The students have barricaded themselves into their dormitory building.

学生们将自己堵在宿舍楼里。

《柯林斯英汉双解大词典》

Dormitory buildings might house a small number of students or many hundreds.

VOA: special.2009.03.26

Since the Census counts dormitory-dwelling college students among those hefty percentages, these numbers may be a bit skewed.

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There are 12 guest rooms for artists and scholars, with a dormitory for Shanghai art students under way, and even a working organic farm.

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In the seven years since Mark Zuckerberg started Facebook in his Harvard dormitory, Facebook has moved from a closed social networking service available to college students to a place where one seventh of the world's population logs in at least once a month.

NPR: As Facebook Matures, Is It Losing Its Edge?