This is the 622nd most frequent Japanese word.
コース
"コース" (kōsu) means "course" and can refer to a route, path, or a series of steps (e.g., a meal course or academic course).
In this sentence, the word 'コース' refers to an educational course or program of study.
このコースを受講することで、基本的なスキルを身につけられます。
By taking this course, you can acquire basic skills.
In this context, 'コース' means a fixed set menu or meal sequence offered in the restaurant.
このレストランでは、三つのコースから選べます。
At this restaurant, you can choose from three set menus.
Here, 'コース' implies a set workout program or routine provided by the gym.