A tatami-matted room (a formal Japanese-style room often used for guests or formal occasions).
この旅館には広い座敷があり、くつろげる。
This ryokan has a spacious tatami room where you can relax.
祖父の家の座敷で正月を過ごした。
I spent New Year's in my grandfather's tatami room.
レストランで座敷を予約して、子ども連れでも安心だった。
We reserved a tatami room at the restaurant, so it was comfortable with children.
A banquet or entertainment held in a tatami room, especially one attended by geisha or maiko (a traditional form of hosted entertainment).
その座敷では芸者が数人ついて、客をもてなした。
At that banquet, several geisha attended and entertained the guests.
昔は大きな宴会は座敷で行われることが多かった。
In the past, large banquets were often held in tatami rooms.