Question

What do you mean by terity of uer

Answer 1

ruler

The leader of a country is a ruler. If you're a queen, a sultan, or a czar, you're a ruler.

Besides "person who rules or governs," you can define ruler as a measuring device that's marked with inches or centimeters. You can measure the diameter of a circle with a ruler, and you can also draw a perfectly straight line using its edge. Both meanings stem from the verb rule, "to exercise power" or "to control," which came to also mean "mark with lines" in the 1590s.