the whole school; all students and staff
Refers to the entire school as a collective body, including all students and staff. Often used in contexts like school assemblies or announcements.
The whole-school assembly was held in the gymnasium.
all schools; every school
Used when referring to multiple schools collectively, such as in regional or national contexts.
Disaster drills were conducted at all schools in the prefecture.
The whole school held a sports day together.
The principal informed the whole school about the typhoon.