This is the 3852nd most frequent Turkish word.
şube
Branch.
Here, 'şube' refers to a local branch or office of the bank.
Bankanın bu mahallede bir şubesi var.
The bank has a branch in this neighborhood.
In this sentence, 'şube' is used to denote a specific branch of an institution, the language course, in a particular location.
Dil kursunun İstanbul şubesi açıldı.
The language course's Istanbul branch opened.
In this example, 'şube' is employed to describe a store branch within a shopping mall.