A ruler is an essential tool for measuring length and drawing precise straight lines.
30초 단어
- A tool used for drawing straight lines.
- Commonly used in schools and offices for measurement.
- Usually made of plastic, wood, or metal.
Overview
- 1概要：定規（じょうぎ）は、図画工作や数学、建築など、正確な長さや直線を必要とする場面で欠かせない文房具です。一般的に目盛りがついており、長さを測る機能と、直線を引くガイドとしての役割を併せ持っています。
- 1使用パターン：定規は「直線を引く（draw a line）」「長さを測る（measure the length）」という動詞と共によく使われます。また、「定規を当てる」という表現は、定規を紙の上に置いて線を描く準備をすることを指します。
- 1一般的な文脈：学校の算数や図画工作の授業では必須のアイテムです。また、DIYや設計図を書く際など、専門的な分野でも頻繁に使用されます。最近では、カッターで紙を切る際にガイドとして使う金属製の「カッター定規」など、用途に応じた様々な種類が存在します。
- 1類語との比較：「定規」と「物差し（ものさし）」は混同されやすい言葉です。厳密には、定規は「直線を引くこと」を主目的としていますが、物差しは「長さを測ること」を主目的としています。しかし、現代の日常生活では両者ともほぼ同じ意味で使われることが多く、厳格に使い分ける必要はあまりありません。
예시
定規を使って線を引く。
everydayDraw a line using a ruler.
図面を作成する際は、必ず定規を使用してください。
formalPlease be sure to use a ruler when creating drawings.
定規貸してくれる？
informalCan you lend me a ruler?
定規による測定値には誤差が生じる可能性がある。
academicThere may be errors in measurements taken with a ruler.
자주 쓰는 조합
자주 쓰는 구문
定規を当てる
Apply a ruler
定規で計る
Measure with a ruler
定規を引く
Draw a line with a ruler
자주 혼동되는 단어
While historically a tool for measuring length, it is often used interchangeably with 'jougi' in daily life. 'Jougi' focuses more on drawing lines.
문법 패턴
How to Use It
사용 참고사항
The word 'jougi' is neutral and used in both formal and informal settings. It is the standard term taught in schools. When speaking casually, 'monosashi' is also frequently used.
자주 하는 실수
Some learners might confuse it with 'kagi' (key) due to sound similarity. Remember that 'jougi' is for drawing, while 'kagi' is for opening doors. Also, do not use 'jougi' as a verb; it is strictly a noun.
Tips
Use rulers for neat work
Always use a ruler when drawing lines for diagrams or charts. It makes your notes look professional and easy to read.
Do not use as a blade
Plastic rulers can break if used to cut paper with a knife. Use a metal-edged ruler for cutting tasks to stay safe.
Rulers in Japanese schools
Japanese students typically carry a 15cm or 30cm ruler in their pencil cases. It is considered a fundamental school supply.
어원
The word comes from 'jou' (rule/standard) and 'gi' (instrument). It represents a standard tool for maintaining straightness.
문화적 맥락
In Japan, the '15cm ruler' is a staple in every student's pencil case. It is a symbol of the disciplined and precise nature of Japanese education.
암기 팁
Think of 'Jougi' as 'Join-gi'—it joins points together with a line. A ruler is the tool that helps you 'join' two dots perfectly.
자주 묻는 질문
4 질문本来は直線を引くものが定規、長さを測るものが物差しですが、現在は混同して使われます。日常会話ではどちらを使っても問題ありません。
英語では「ruler」と言います。また、直線を引くための道具という意味では「straightedge」という言葉もあります。
手書きの風合いを大切にするスケッチや、あえてフリーハンドで描く必要があるデザインの作業などでは使わないことがあります。
プラスチック製が最も一般的ですが、耐久性の高いステンレス製や、温かみのある木製、折りたたみ式など用途に応じて多様です。
셀프 테스트
ノートにまっすぐな線を引くために、___を使います。
直線を引く道具は定規です。
定規の使い方はどれですか？
定規の主な用途は直線を引くことです。
（定規で / 線を / 引いて / ください）
「道具で＋目的語を＋動詞」の語順が自然です。
점수: /3
Summary
A ruler is an essential tool for measuring length and drawing precise straight lines.
- A tool used for drawing straight lines.
- Commonly used in schools and offices for measurement.
- Usually made of plastic, wood, or metal.
Use rulers for neat work
Always use a ruler when drawing lines for diagrams or charts. It makes your notes look professional and easy to read.
Do not use as a blade
Plastic rulers can break if used to cut paper with a knife. Use a metal-edged ruler for cutting tasks to stay safe.
Rulers in Japanese schools
Japanese students typically carry a 15cm or 30cm ruler in their pencil cases. It is considered a fundamental school supply.
예시
4 / 4定規を使って線を引く。
Draw a line using a ruler.
図面を作成する際は、必ず定規を使用してください。
Please be sure to use a ruler when creating drawings.
定規貸してくれる？
Can you lend me a ruler?
定規による測定値には誤差が生じる可能性がある。
There may be errors in measurements taken with a ruler.
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관련 어휘
academic 관련 단어
絶対的
B2Absolute; not qualified or diminished in any way; total.
絶対的に
B1In a complete, unconditional, or conclusive manner; absolutely.
抽象的だ
B1Abstract; existing in thought or as an idea but not having a physical or concrete existence.
抽象
B2Existing in thought or as an idea but not having a physical or concrete existence. It refers to generalizing or extracting the essence of something away from specific details.
抽象的に
B1In an abstract or theoretical manner.
学術的な
B1Academic, scholarly; relating to education and scholarship.
学術的だ
B1Academic; relating to education and scholarship.
学術的
B2Academic; relating to education and scholarship.
学術
B1Academia; scholarship; relating to scholarly pursuits.
学力
B1Academic ability; a person's level of knowledge and skill in academic subjects.
