What is Course ?
Course is (noun) 1. in due course after a certain amount of time If you study for several years at college, in due course you will get a degree. Put a coin in the slot and in due course the machine will produce a ticket. in the course of during He’s got much richer in the course of the last few years. 2. a series of lessons I’m taking a maths course. She’s going on a painting course. She has finished her secretarial course. The hotel offers weekend courses in watercolour painting. 3. a series of treatments He’s taking a course of antibiotics. 4. a separate part of a meal a five-course meal The first course is soup, and then you can have either fish or roast lamb.
source: Easier English, Student Dictionary Upper Intermediate Level