1.
seat
A place to sit, especially an assigned or designated one.
座席を予約する。
To reserve a seat.
指定座席
Reserved seat.
座席番号
Seat number.
飛行機の座席は窓側と通路側のどちらがいいですか。
Would you prefer a window seat or an aisle seat on the plane?
コンサートの座席はすべて売り切れていたが、当日キャンセルが出て入ることができた。
All the concert seats were sold out, but a cancellation opened up on the day and I was able to get in.
座席 refers to an assigned or designated seat, more formal than 席.
COMMON COMPOUNDS:
- 指定座席: reserved seat
- 自由座席: unreserved seat
- 座席番号: seat number
- 座席ベルト: seat belt
- 優先座席: priority seat (for elderly, pregnant, etc.)
AIRPLANE/TRAIN SEATS:
- 窓側座席: window seat
- 通路側座席: aisle seat
SIMILAR WORDS:
- 席: seat (more casual, broader usage — also means "place" at a gathering)
- 座席: specifically a physical seat, often numbered or assigned