tenure

noun
C1+
1
C1+
the period of time when somebody holds an important job, especially a political one; the act of holding an important job
دوره تصدی, مدت خدمت, داشتن سمت
2
the right to stay permanently in your job, especially as a teacher at a university
تصدی, حق تصدی, اشتغال دائم
It's still extremely difficult to get tenure.
She has been granted tenure at Leeds University.
3
the legal right to live in a house or use a piece of land
حق تصرف, حق سکونت, حق استفاده
When you rent a house here, you don’t have security of tenure.