participation fee; entrance fee; registration fee
Fee required to participate in an event, course, or activity. Often used for conferences, workshops, tours, and classes.
The seminar participation fee is free.
Please transfer the participation fee in advance.
参加費 is a general participation fee for any event, while 受講料 is specifically for taking an educational course or lesson.
Compound of 参加 (participation) + 費 (expense, cost).