Final answer:
A megachurch is a type of Christian worship gathering that has a very large congregation averaging more than 2,000 people. They often have architecturally impressive buildings and utilize state-of-the-art sound systems. Megachurches may also have a TV presence that broadcasts sermons over public television.
Step-by-step explanation:
A megachurch is a type of Christian worship gathering that has a very large congregation averaging more than 2,000 people who attend regular weekly services. These churches have gained popularity in the United States, as well as in other parts of the world. They often have architecturally impressive buildings resembling sports or concert arenas, and utilize state-of-the-art sound systems and equipment. Megachurches may offer additional facilities such as food courts, sports and recreation areas, and bookstores. The services usually feature contemporary music with drums and electric guitars. Additionally, megachurches may have a TV presence, broadcasting sermons over public television.