Cabins.
Yes
there may be various amounts depending on the size
Two bedrooms with a door between them are called "connecting bedrooms" because you can go directly from one to another without having to go first into a hallway.
dormitary < not sure if spelt right sozz
A ship called she because a ship is always WET
A ship called she because a ship is always WET
The plural possessive form of "bedrooms" is "bedrooms'." This indicates that something belongs to multiple bedrooms, for example, "the bedrooms' decor."
The Confederate ship was called the Merrimack and the Union ship was called the Monitor.
It is called "christening" the ship. When a ship is named, it is "christened."
bedrooms'
The rear of the ship is called the "stern". The front is called the "bow". The rear direction in a ship is "aft". (head "aft" to get to the "stern").
Ship steerers are called helms.