The prefix “SS” refers to a steamship. Steamships utilize steam engines to power at least one propeller for moving through water. For example, the SS Great Britain passenger ship was designed by Isambard Kingdom Brunel. Originally built as a passenger ship, the SS Great Britain has since become a museum.
Historical Background
The meaning of the SS boat name dates back to the late 18th century when steam engines started powering boats and ships, also known as "steamers." By the early 1900s, using the SS prefix had become popular at sea.
As steam-powered watercraft developed, the British government began using SS in 1819 to classify these vessels. While steam engines are no longer widely used to power boats today, the tradition of using the SS prefix has continued. Ship prefixes help denote the vessel’s mode of propulsion.
Common Confusions
There is possible confusion with other interpretations of SS. For some people, SS means "sailing ship." You may also see SS on USS, which stands for United States Ship.
Ship Prefixes Explained
- MV stands for motor vessel
- PS stands for paddle steamer
- SS stands for steamship