monarchy

noun
1
a system of government by a king or a queen
پادشاهی, سلطنت, حکومت شاهی
2
a country that is ruled by a king or a queen
پادشاهی, سلطنت, نظام سلطنتی, حکومت سلطنتی, حکومت پادشاهی
There are several constitutional monarchies in Europe.
see also constitutional monarchy
3
the king or queen of a country and their family
پادشاهی, سلطنت, خاندان سلطنتی