Trucks are an important mode of transportation for goods and cargo across the world. However, there are many synonyms for the word "trucks" that can be used interchangeably. Some of the synonyms for trucks are lorries, semis, big rigs, tractor trailers, haulers, and heavy-duty vehicles. These words all refer to large motor vehicles used for transportation of goods and cargo. Different regions and countries use different terms, but they all refer to vehicles with powerful engines and sturdy structures, capable of hauling significant weight. Whether it's a lorry in Europe, a big rig in North America or a semi in Australia, these synonyms for trucks ultimately describe the same essential vehicle needed for transporting goods.