rule
//ruːl//
Noun
An official regulation or principle that governs conduct or procedure
You must follow the rules of the game.
A usual or customary state of things; what is normal or expected
Working from home has become the rule rather than the exception.
A straight strip of rigid material used for measuring or drawing straight lines
Use a rule to draw a straight line.
The exercise of authority or control over others; dominion
The country was under foreign rule for many years.
Synonym
Verb
To exercise ultimate power or authority over a place or people
The king ruled the country for 40 years.
To make an authoritative decision or judgment
The judge ruled that the contract was invalid.
To mark with straight lines using a ruler
She ruled lines on the paper before writing.
To be predominant or most important; to dominate
In this company, profit rules over everything else.