student attending a lecture or course
Refers to a person enrolled in and attending a lecture, class, or course. Often used in educational or training contexts.
There are 30 students attending this course.
I will hand out materials to all the students attending the lecture.
聴講生 is an auditor, someone who attends lectures without being formally enrolled or seeking credit. 受講生 implies active participation and enrollment.
Compound of 受講 (じゅこう, 'attending a lecture') + 生 (せい, 'student').