A set of guidelines or instructions that tell you what to do.
The teacher set a rule that everyone must be quiet during the test.
A principle that explains how something works or is done.
Can you tell me the rule for making the past tense of verbs?
Advice on how to act in a certain situation.
The guidebook gives a rule of thumb for choosing the best wine.
A usual way that something happens or is done.
As a rule, he arrives home before 6 PM.
The act of having control or power over something or someone.
Under the new rule, citizens have more rights.
A tool with a straight edge for drawing lines.
Please pass me the rule so I can finish this drawing.
To have control or authority over something or someone.
The king rules the kingdom with wisdom.
To be the main influence on something or someone.
Fear ruled his every decision.
To make an official decision about something.
The judge will rule on the case next week.
To draw a straight line using a straight edge.
Use a rule to make sure the lines on your paper are straight.