noun, noun or participle which takes 'suru'
living in the mountains; mountain life
Refers to the act or state of residing in the mountains, often with a literary or traditional feel. Can be used as a noun or with する to mean 'to live in the mountains'.
彼は都会を離れ、山居を選んだ。
He left the city and chose a life in the mountains.
老後は静かに山居し
I think I'd like to live quietly in the mountains in my old age.
noun
mountain house; house in the mountains
A dwelling located in the mountains; often implies a simple, rustic, or secluded residence.
その山居は、周囲を深い森に囲まれていた。
The mountain house was surrounded by deep forest.