Submarines are commonly referred to as "boats" due to naval tradition, which dates back to the early days of maritime language. Historically, smaller vessels were called boats, while larger ships were referred to as ships. This terminology has persisted, and even though submarines are technically large underwater vessels, they retain the "boat" designation as a nod to their origins and the conventions of naval terminology.
Germany called there submarines U boats
German submarines were referred to as U-boats during the world wars.
german U-boats were submarines. in German they are called Unterseeboot
U boats- for Unterseabooten (under sea boats)
The submarines were either called "submarines" or "U-boats." The German submarine was called the "U-boat"
It was Germany.
Underseaboats.U-boats
In their history, submarines were called by many names such as 'U-boats', 'eel boats', 'plunging boats', 'devil divers', and 'pig boats'. Technically, and by size, the submarine is a ship, but it has been called a boat since its earliest days, and the term is steeped in tradition. Submariners almost invariably call their ships 'boats".
Germany used U boats.
Underseaboats.U-boats
german U-boats were submarines. in German they are called Unterseeboot
Well, only the Germans called their submarines U-Boats, this was short for the german word unterseeboot which means submarine.