"Semis," short for semi-trucks or semi-trailer trucks, are large vehicles used for transporting goods over long distances. They consist of a powerful truck cab that pulls a detachable trailer, which carries cargo. These trucks are essential for the shipping industry, helping to move everything from food to electronics across the country. The design of semis allows them to carry heavy loads while maintaining good fuel efficiency. They often travel on highways and are a common sight on roads. Drivers of semis, known as truckers, play a crucial role in keeping supply chains running smoothly, ensuring that products reach stores and consumers on time.