Translation guide
The back seat of a vehicle, typically a car. In Japanese, the most common term is 後部座席, but other expressions exist depending on context.
後部座席
rear seat (car)
Referring to the rear passenger seats in a car or similar vehicle.
Standard term for the rear seat of a car. Neutral and widely understood.
後部座席に座ってください。
Please sit in the rear seat.
後部座席は少し狭いです。
The rear seat is a bit cramped.
More casual and general. Can refer to any back seat, not just in vehicles.
後ろの席に荷物を置いた。
I put my luggage on the rear seat.
Loanword from English 'rear seat'. Used in automotive contexts, often in written or technical descriptions.
この車のリアシートは広々としている。
This car's rear seat is spacious.
The passenger seat behind the rider on a two-wheeled vehicle.
Commonly used for bicycle rear seats, especially child seats.
子供を後ろの席に乗せて走る。
I ride with my child on the rear seat.
Specifically the passenger seat on a motorcycle. From 'tandem seat'.
タンデムシートに彼女を乗せてツーリングに行った。
I went touring with my girlfriend on the rear seat.