在家里to be at home

• 我今天晚上在家。

  I will be at home this evening.

• 大家都走了，只有我一人在家。

  Everyone has gone and there is only me at home.

• 在家千日好，出门一时难。

  When at home, life is always easy, but when one goes out, one might run into trouble in an instant.

没出家to not take religious vows