The term 'Shipwreck Finder' can be summarized as a job that uses sonar technology to locate sunken ships. Sonar, which stands for Sound Navigation and Ranging, is a method of detecting objects underwater by using sound waves. It is used to detect the location, depth, and size of submerged objects, such as shipwrecks. By using sonar, Shipwreck Finders are able to locate and identify sunken ships, allowing them to be studied and salvaged.