The school has a strict rule about attendance.

The ruling party won the election

As a rule, students are not allowed to use their phones during class.

The country is ruled by an oligarchical government.

Australian Rules football, a game similar to rugby played by two teams of 18, is very popular in Australia.

I will rule out that option.

The golden rule is to treat others as you would like to be treated.

The ground rule for this stadium is that any ball hit into the stands is considered a home run.

I measured the length of the table using a foot rule.

The city has implemented self-rule to govern its own affairs.