The term "entry fee" refers to a payment required in order for someone or something to be allowed entry into a particular place, event, organization, or activity. It is often used when referring to an admission charge at a venue such as a museum, amusement park, or sporting event. The phrase can also refer to the cost of joining a club, group, or program, or for using a service. In essence, it means paying a fee in order to gain access or participate in something.