Most people are able to handle two terms used for the same thing, especially when both are self-explanatory.
There are many example of this in the maritime vocabulary used around the world. Many have been discussed on this forum before.
I call a complete vessel a Ship, while the “body” of that ship is the Hull.
Some appears to confuse the matter by calling a ship a hull.
(Finance people even call it “an asset”)
Some even use “Left and Right” when they mean “Port a Starboard”. Confusing.
PS> That is why there is such thing as “Standard Maritime English”:
This is taught in Maritime Schools worldwide to avoid confusion when ships of different nationalities meet and seafarers communicate in English.