A "course" is a structured program of study that focuses on a specific subject or skill. It can be offered in various formats, including in-person classes, online modules, or hybrid formats. Courses are typically part of a larger educational framework, such as a degree program or certificate program, and can vary in length, depth, and complexity. Courses are designed to help learners acquire knowledge and skills through lectures, assignments, and assessments. They can be found in many fields, including science, arts, business, and technology. Successful completion of a course often results in a grade or certification, indicating the learner's proficiency in the subject matter.