school caretaker / janitor
bidelli
bee-DEHL-loh
Official term: 'collaboratore scolastico'. 'Bidello' is the traditional and universally used informal term.
Il bidello apre le aule ogni mattina.
The caretaker opens the classrooms every morning.
I bidelli aiutano a mantenere l'ordine in corridoio.
The caretakers help maintain order in the corridors.