Thickness represents the dimension of an object from one side to the other.
Word in 30 Seconds
- Refers to the distance between two opposite surfaces of an object.
- Commonly used to measure physical dimensions of flat items.
- Derived from the adjective 'atsui' (thick).
概要
「厚さ」は、形容詞「厚い」の名詞形です。物体の立体的な寸法の一つで、特に平らなものや筒状のものの、表面から裏面までの距離を指します。2) 使用パターン: 「〜の厚さ」という形で、対象となる物の厚さを表現します。また、「厚さを測る」「厚さがある」のように動詞と組み合わせて使われることが一般的です。3) 一般的な文脈: 日常生活では、本、板、紙、衣服の生地など、具体的な物の寸法を測る際に頻繁に使用されます。また、物理的な寸法だけでなく、雪の積もった深さ（積雪の厚さ）や、氷の層の厚さなど、自然現象に対しても使われます。4) 類似語との比較: 「太さ」は棒状のものや円柱状のものの直径を指すのに対し、「厚さ」は平らな面の表裏の距離を指します。また、「深さ」は容器や穴の底までの距離を指すため、対象物の形状によって使い分ける必要があります。
Examples
この本の厚さは3センチです。
everydayThe thickness of this book is 3 cm.
書類の厚さを確認してください。
formalPlease check the thickness of the documents.
もっと厚さのある肉がいいな。
informalI want meat that is a bit thicker.
地層の厚さを分析する。
academicAnalyze the thickness of the geological layer.
Common Collocations
Common Phrases
厚さ数ミリ
a few millimeters thick
十分な厚さ
sufficient thickness
厚さを調整する
adjust the thickness
Often Confused With
Used for cylindrical or rod-shaped objects like trees or fingers. It refers to the diameter.
Used for vertical distance from the top to the bottom of a container or hole. It refers to depth.
Grammar Patterns
How to Use It
Usage Notes
Atsusa is a neutral noun used in both formal and informal settings. It is specifically for measuring flat dimensions. Always pair it with 'aru' or 'measuring verbs' for clarity.
Common Mistakes
Beginners often confuse 'atsusa' with 'futosa' when describing round objects. Remember that 'atsusa' is for flat surfaces. Also, do not use it for depth (fukasa).
Tips
Use with specific measurements
When describing thickness, it is common to use numbers like '3cmの厚さ'. This helps provide precise information.
Do not confuse with depth
Use 'fukasa' for depth (like a pool) and 'atsusa' for thickness (like a book). Mixing them can cause confusion.
Thickness in Japanese culture
In Japan, the thickness of items like tatami mats or paper (washi) is often associated with quality or durability.
Word Origin
Derived from the classical Japanese adjective 'atsushi' (thick). The suffix '-sa' is added to adjectives to turn them into nouns representing the degree of that quality.
Cultural Context
In Japan, the thickness of items like 'tatami' mats is a standard measurement for room size. Understanding 'atsusa' is crucial for daily life and home maintenance.
Memory Tip
Think of a thick 'Atsui' book. The 'sa' turns the adjective into a noun, so 'Atsusa' is the thickness of that book.
Frequently Asked Questions
4 questions「厚さ」は板や本のような平らなものの表裏の距離を指し、「太さ」は木や腕のような円柱状のものの直径を指します。対象物の形が平らか立体かで使い分けます。
定規やメジャー、あるいはノギスなどの測定器具を使って測ります。文脈によっては、経験的に「この本は厚さがある」のように量感を表現することもあります。
形容詞では「厚い」と言います。反対語は「薄い」で、名詞形は「薄さ」となります。
はい、「厚さ」には物理的な距離だけでなく、信頼の厚さや人情の厚さのように、抽象的な度合いを指す場合もあります。
Test Yourself
この本は___が5センチもある。
本は平らな形状なので、表裏の距離を表す「厚さ」が適切です。
「厚さ」の説明として正しいものはどれですか？
厚さは物理的な厚みの寸法を指す名詞です。
（の / 厚さ / この / 測ってください / 板 / を）
「名詞＋の＋厚さ」という語順が自然です。
Score: /3
Summary
Thickness represents the dimension of an object from one side to the other.
- Refers to the distance between two opposite surfaces of an object.
- Commonly used to measure physical dimensions of flat items.
- Derived from the adjective 'atsui' (thick).
Use with specific measurements
When describing thickness, it is common to use numbers like '3cmの厚さ'. This helps provide precise information.
Do not confuse with depth
Use 'fukasa' for depth (like a pool) and 'atsusa' for thickness (like a book). Mixing them can cause confusion.
Thickness in Japanese culture
In Japan, the thickness of items like tatami mats or paper (washi) is often associated with quality or durability.
Examples
4 of 4この本の厚さは3センチです。
The thickness of this book is 3 cm.
書類の厚さを確認してください。
Please check the thickness of the documents.
もっと厚さのある肉がいいな。
I want meat that is a bit thicker.
地層の厚さを分析する。
Analyze the thickness of the geological layer.
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