Freight ships are commonly known as cargo ships, which are vessels designed specifically to carry various types of goods across vast distances. They are also referred to as merchant ships or bulk carriers, as they are often used for transporting large quantities of goods such as coal, oil, grain, and other raw materials. Another common synonym for these types of ships is container vessels, which are designed specifically for carrying standardized containers. Other terms commonly used to describe these types of ships include dry bulk carriers, oil tankers, and chemical carriers. Regardless of how they are referred to, freight ships play a critical role in the global economy, allowing for the transportation of goods across oceans and continents.