Translation guide
A booster seat is a seat that raises a child so they can safely use an adult seat belt or sit at a table. In Japanese, the term depends on the context: car booster seats are called チャイルドシート (child seat) or specifically ブースターシート, while dining booster seats are often called 座席用クッション or ジュニアシート.
A seat used in a car to raise a child so the seat belt fits properly.
The general term for child car seats, including booster seats. Often used broadly for all types of child restraint systems.
子供が小さいので、チャイルドシートを使っています。
Since my child is small, I use a child seat.
A loanword specifically for booster seats. Commonly understood, especially among parents.
身長が140cmになるまでブースターシートが必要です。
A booster seat is required until the child reaches 140 cm in height.
Often used for booster seats for older children who have outgrown a full child seat. Sometimes used interchangeably with ブースターシート.
ジュニアシートに座らせると、シートベルトが正しく装着できます。
When seated in a junior seat, the seat belt can be worn correctly.
A seat used at a dining table to raise a child to table height.
Literally 'seat cushion', this is a common term for booster cushions used on chairs.
レストランで座席用クッションを借りました。
I borrowed a booster cushion at the restaurant.
Can also refer to dining booster seats, especially those with a backrest and tray.
自宅ではジュニアシートを使って一緒に食事をします。
At home, we use a booster seat to eat together.
Typically refers to high chairs, but sometimes used loosely for any child seating, including booster seats.
The literal translation 'ブースターシート' is understood but less common than チャイルドシート for car seats. For dining, '座席用クッション' is clearer than ブースターシート.
このベビーチェアはテーブルに取り付けられます。
This baby chair can be attached to the table.