noun
box seat; booth; private seating area
Refers to an enclosed or semi-enclosed seating area in restaurants, theaters, sports stadiums, etc. Often implies a degree of privacy or exclusivity.
あのレストランにはボックス席があるので、ゆっくり話せます。
That restaurant has booth seating, so we can talk comfortably.
野球の試合をボックス席で観戦した。
I watched the baseball game from a box seat.