A1 noun ニュートラル #371 よく出る

ruler

/ˈruːlər/

A long, flat tool made of plastic, wood, or metal that has straight edges. It is used to measure the length of objects or to draw straight lines on paper.

例文

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1

I need a ruler to measure how long this book is.

I need a measuring tool to check the length of this book.

2

Please ensure you bring a 30-centimeter ruler to the final examination.

Please make sure to bring a standard measuring tool to the test.

3

Pass me that ruler, I can't draw a straight line without it.

Give me the measuring tool because I need it for my drawing.

語族

名詞
ruler
Verb
rule
形容詞
ruled
関連
ruling
💡

覚え方のコツ

A Ruler helps you make things Rule-straight.

クイックテスト

Use a ____ to see how wide your notebook is.

正解!

正解は: ruler

例文

1

I need a ruler to measure how long this book is.

everyday

I need a measuring tool to check the length of this book.

2

Please ensure you bring a 30-centimeter ruler to the final examination.

formal

Please make sure to bring a standard measuring tool to the test.

3

Pass me that ruler, I can't draw a straight line without it.

informal

Give me the measuring tool because I need it for my drawing.

4

Students must use a ruler to create precise geometric shapes in their workbooks.

academic

Learners should use a measuring stick to make exact shapes in class.

5

The office supply list includes pens, paper, and a heavy-duty metal ruler.

business

The company needs to buy pens, paper, and a strong measuring tool.

語族

名詞
ruler
Verb
rule
形容詞
ruled
関連
ruling

よく使う組み合わせ

plastic ruler a measuring tool made of plastic
metric ruler a ruler that uses centimeters and millimeters
wooden ruler a measuring tool made of wood
draw with a ruler to use the edge of the tool to make a line
measure with a ruler to find the size using the tool

よく使うフレーズ

straight as a ruler

perfectly straight

slide rule

an old mathematical tool

twelve-inch ruler

a standard sized ruler

よく混同される語

ruler vs rule

A 'rule' is a law or instruction; a 'ruler' is the physical object used for measuring.

ruler vs ruler (leader)

In a political context, a 'ruler' is a person who governs a country, such as a king.

📝

使い方のコツ

In an educational or classroom context, the word 'ruler' almost always refers to the measuring tool. It is a countable noun.

⚠️

よくある間違い

Learners sometimes use the word 'rule' when they mean the physical object, though 'ruler' is the standard term in schools.

💡

覚え方のコツ

A Ruler helps you make things Rule-straight.

📖

語源

From the Middle English 'reulen', derived from the Latin 'regula', meaning a straight stick or guide.

文法パターン

Countable noun Plural: rulers Used with the preposition 'with' (e.g., 'measure with a ruler')
🌍

文化的な背景

In most Western schools, a 30-centimeter or 12-inch ruler is a standard item in every student's pencil case.

クイックテスト

Use a ____ to see how wide your notebook is.

正解!

正解は: ruler

Educationの関連語

university

A1

A university is a high-level educational institution where students study for degrees and conduct academic research. It is a place people go after finishing secondary school to specialize in a specific subject.

classroom

A1

A classroom is a dedicated room in a school or college where students and teachers meet for lessons. It typically contains desks, chairs, and tools for learning like a whiteboard or computer.

science

A1

Science is the study of the natural world based on facts learned through experiments and observation. It is a subject taught in schools that helps us understand how the physical world and the universe work.

geography

A1

Geography is the study of the Earth's surface and its physical features like mountains, rivers, and oceans. It also looks at how people live in different parts of the world and how they interact with their environment.

literature

A1

Literature refers to written works such as novels, plays, and poems that are considered to be very good or important. It can also refer to printed information about a particular subject or business.

chemistry

A1

Chemistry is the branch of science that studies what things are made of and how they react with each other. It is also a common subject taught in schools and universities.

economics

A1

Economics is the study of how people, businesses, and countries use money and resources. It explains how things are made, bought, and sold in the world.

notebook

A1

A book with blank or lined pages used for writing notes, drawing, or keeping records. It is a common tool for students, artists, and professionals to organize their thoughts and information.

pencil

A1

A long, thin instrument used for writing or drawing, typically consisting of a thin stick of graphite enclosed in a wooden case. Unlike pens, marks made with this tool can be easily removed using an eraser.

pen

A1

A pen is a common handheld tool used for writing or drawing with ink on paper. It is a basic piece of stationery essential for education, office work, and personal record-keeping.

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