Trimarans are vessels with three hulls that allow them greater stability and more room for passengers and cargo than mere monohull boats. Synonyms for Trimarans may include all sorts of vessels that fall into the same category when it comes to their design and function. Examples of these synonyms include Trimarans, Catamarans, Multihulls, and Tri-hulls, which are all vessels with multiple hulls. These boats range in size from small, single-seat catamarans to massive, multi-deck passenger ferries capable of carrying hundreds of people. For anyone seeking a vessel with increased stability and spacious interior, consider one of these Trimaran-related synonyms to satisfy your nautical needs.