main school; principal school
Used for the main school or main campus in contrast to a branch school or branch campus, especially 分校.
See also: 分校
The main school is in the city, and the branch school is in the mountains.
this school; our school
Institutional self-reference used by a school in notices, speeches, websites, and formal explanations. Similar to 'this school' or 'our school' rather than personally intimate 'our.'
本校では来月、入学説明会を行います。
Our school will hold an admissions information session next month.
本校の教育方針についてご説明します。
I will explain this school's educational policy.
He has been attending this school for three years.
All students of this school must follow this rule.
My grandfather graduated from this school.