noun, noun which may take the genitive case particle 'no'
inside a car; inside a train; inside a bus
Refers to the interior space of a vehicle such as a car, train, or bus. Often used in announcements, signs, and descriptions of in-vehicle conditions.
車内は禁煙です。
Smoking is prohibited inside the car/train.
車内アナウンスに注意してください。
Please pay attention to the in-vehicle announcement.
Using your phone inside the train is against etiquette.
During commuting hours, the train gets very crowded inside.
I accidentally left my umbrella on the train.