course
The Italian word 'corso' means 'course' in English. It can refer to a series of lessons or a direction in which someone or something moves. For instance, 'corso di studi' means 'course of study'. But it is not used for a course of a meal (that would be 'portata'). Like many Italian words, the meaning is context-dependent.
I have finished the Italian course.
This sentence refers to the completion of an Italian language course. 'Corso' here refers to a course of study.
The course of the road is winding.
In this context, 'corso' refers to the path or course that a road is taking. The word can be used to describe other types of paths or routes as well.
After the course, I will go home.
This is a simple future tense sentence expressing a planned action (going home) after another event (the course). Here again, 'corso' refers to a course of study.