Ruler

'ruːlər

nounmediumCommonGeneral

Definitions

2 meanings
1

A person who exercises government or control over a people, territory, or organization.

'ruːlər

nounneutralmedium
General

A person who rules or governs a country or territory.

The benevolent ruler implemented policies that benefited the entire population.

💡 Simply: Imagine the king or queen of a country. They're the ruler! They make the rules and make sure everyone follows them. Like the principal at school, or the boss at work.

👶 For kids: Someone who is in charge and makes decisions for a place or group of people, like a king or queen.

More Examples

2

History books often recount the lives of powerful rulers.

3

The country has been under the rule of a dictator for many years.

How It's Used

Politics

"The new ruler of the kingdom implemented many changes."

History

"Cleopatra was a famous ruler of Egypt."

2

An instrument, typically a straight strip of wood or plastic, marked at intervals, used for measuring lengths or drawing straight lines.

'ruːlər

nounneutralBeginner
General

A straight-edged strip of rigid material, typically marked at regular intervals, used for measuring lengths or drawing straight lines.

She used a ruler to measure the length of the paper.

💡 Simply: It's a flat stick with lines on it that helps you measure how long something is or draw a straight line, like when you're doing your homework and need to draw a straight line or measure your pencil.

👶 For kids: A long, straight stick that helps you measure things or draw straight lines.

More Examples

2

The architect needed a precise ruler to create the blueprints.

3

A ruler is an essential tool for geometry class.

How It's Used

Mathematics

"Use a ruler to draw a straight line."

Engineering

"The engineer used a ruler to measure the precise dimensions."

Tip:Picture a straight edge with markings for measuring.

Idioms & expressions

rule of thumb

A practical and approximate way of doing or measuring something, based on experience rather than precise calculations.

"As a rule of thumb, you should budget 20% of your income for savings."

rule the roost

To be in charge; to dominate; to be the boss.

"After her husband's death, the widow started to rule the roost at home."

From Middle English rulere, from Old English rīcere ('governor, ruler'), from rīcan ('to rule') and -ere (agent suffix).

The word 'ruler' has been used in English since Old English times, primarily referring to a leader or governor.

Memory tip

Think of someone holding the reigns, controlling things.

rulurrueler

Usage

40%Spoken
60%Written