This is the 2278th most frequent Polish word.
szkolnego
"Szkolnego" means "school-related" or "of the school."
The word 'szkolnego' functions as an adjective describing 'zespołu', meaning 'team', as belonging or related to school.
Spotkałem kolegę z mojego szkolnego zespołu.
I met a friend from my school team.
Here, 'szkolnego' modifies 'gazety', which means 'newspaper,' denoting that it pertains to school.
Przygotowujemy projekt szkolnego gazety.
We are preparing a project for the school newspaper.
In this sentence, 'szkolnego' is an adjective relating to 'autobusu', indicating the bus that is designated for school purposes.