Tank vessel is a term used to describe a large ship that is primarily used for carrying liquid cargoes such as oil, gas, and chemicals. However, this term can be replaced by other synonyms such as tanker, liquid bulk carrier, oil tanker, and chemical tanker. These synonyms come from the fact that tank vessels are designed for the transportation of liquids in bulk and they all share similar features such as multiple tanks, piping systems, and pumping mechanisms for safe loading, transport, and discharge of these liquids. Whether it is coastwise shipping or international trade, recognizing the different names for tank vessels is important to ensure effective communication in the maritime industry.