a list of planned activities or things to be done showing the times or dates when they are intended to happen or be done:
a production schedule
a hectic/tight (= very busy) schedule
Everything went according to schedule (= as had been planned).
a list of the times when events are planned to happen, for example the times when classes happen or when buses, etc. leave and arrive:
The class schedule is available on the website.
a bus schedule
a schedule of talks at the convention
an official list of things:
a schedule of business expenses