reign

noun
C1+
1
C1+
the period during which a king, queen, emperor, etc. rules
سلطنت, دوران حکومت, مدت سلطنت
2
the period during which somebody is in charge of an organization, a team, etc.
دوران حکومت, ریاست, حکمرانی, فرمانروایی, زمامداری
Sir Alex Ferguson's reign at Manchester United
The story only came out during the final days of his reign as Chief Executive.
verb
C1+
1
C1+
to rule as king, queen, emperor, etc.
سلطنت کردن, حکم‌رانی کردن, پادشاهی کردن, فرمان‌روایی کردن
2
to be the best or most important in a particular situation or area of skill
تسلط داشتن, برجسته بودن, چیرگی داشتن, غلبه کردن
She will face the reigning champion in her first round match.
In the field of classical music, he still reigns supreme.
3
to be the most obvious feature of a place or moment
چیره بودن, غالب بودن
At last silence reigned.
For a while, chaos and confusion reigned.