The term 'Large Trucks' can be summarized by the crossword solution of 'SEMIS', which is a five-letter word. SEMIS are large trucks that are used to transport goods and materials over long distances. They are typically tractor-trailers, with a cab and a trailer connected by a fifth wheel. SEMIS are often used for commercial purposes, such as transporting goods from one place to another. They are also used for recreational purposes, such as towing boats or campers.