ruler به انگلیسی
From Longman Dictionary
rul‧er /ˈruːlə $ -ər/ ●●● W3 noun [countable]
someone such as a king or queen who has official power over a country or area
کسی مانند پادشاه یا ملکه که قدرت رسمی بر یک کشور یا منطقه دارد
a long flat straight piece of plastic, metal, or wood that you use for measuring things or drawing straight lines
یک قطعه صاف و بلند پلاستیکی، فلزی یا چوبی که برای اندازهگیری اشیا یا کشیدن خطوط مستقیم استفاده میکنید.
Example
Both rulers and ruled may believe that some issues are not a matter for public concern
When his worship spread to a town where there was already a divine ruler the two were slowly fused into one
Despite his arrogance and cruelty towards opponents, he had been a remarkably enlightened and often liberal and generous ruler
Mr Obasanjo was running the country on that occasion too, but as a military ruler
The rulers promptly monopolized it for their own regalia and as a medium for bestowing honour and obligations on their retainers