Definitions

1. noun

a principle or regulation governing a particular activity or situation.

“The company has a strict rule about not working on Sundays.”

2. verb

to have as a rule or principle.

“She rules out the possibility of rain tomorrow.”

3. verb

to govern or control according to a rule or principle.

“The new software rules the market with its innovative features.”

4. noun

a standard or model of something, especially something that is considered typical or representative.

“The new smartphone is the rule for modern smartphones.”