A place to go or a destination; also can mean a place to belong or one's whereabouts. In contexts like '行き所がない', it means having nowhere to go.
そんなに悲しそうにして、行き所はあるのかと心配になる。
Seeing you so sad makes me worry whether you have anywhere to go.
次の行き所が決まるまで、彼らは親戚の家に泊まった。
They stayed at a relative's house until their next destination was decided.
行き所がないと言って路頭に迷う人を助けたい。
I want to help people who say they have nowhere to go and are wandering the streets.