noun, noun which may take the genitive case particle 'no'
on-board ship; inside a ship; inboard
Refers to the interior of a ship or something located/occurring within a ship. Often used with の to modify nouns.
船内にはレストランやプールがある。
There are restaurants and a pool on board the ship.
船内アナウンスによると、まもなく出港するそうだ。
According to the onboard announcement, we will depart soon.