A living room in a house where people relax and gather; often refers to a Western-style living room (often synonymous with 'living').
居間で家族とテレビを見る。
I watch TV with my family in the living room.
居間には大きなソファが置いてある。
There is a large sofa in the living room.
友だちを居間に通してお茶を出した。
I invited my friend into the living room and served tea.