MC most commonly stands for "Master of Ceremonies," referring to someone who hosts or coordinates an event, often introducing speakers or performers

. In the context of music, especially hip hop, an MC is typically a rapper who performs live and engages the audience

. Besides this primary meaning, MC can have many other definitions depending on context, such as Motorcycle Club, MasterCard, Marine Corps, Multiple Choice, Main Character, and more

. However, "Master of Ceremonies" remains the most widely recognized and used meaning.