the princess said that when she would grow up she would reign over the world
He adjusted the horse's rein. Long may she reign.
He will REIGN for many years.
the severe reign of the king slipped as ninety warriors with medals drank medicin
Christine feared that the new girl's growing popularity threatened her exclusive reign over the student body, so she began to spread malicious rumors about her.
I frankly don't know. But reign can be easily used in a sentence. Such as this one.
"The king reign the whoel kingdom"
Some others gladly look forward to a reign of terror.
Robin hood ended Sheriff George's reign of Nottingham.
The king's reign was incredibly shortWhen some is a king or queen they are said to reign over a country.
Queen Victoria's reign lasted 64 years.
Hitler's reign of terror came to an end when he lost the war.
Do you mean "reign" or "region?"