A1 noun ニュートラル #2,512 よく出る

拡大

kakudai [kakɯᵝda̠i]

The act of making something larger in size, scale, or scope. It is frequently used for physical enlargement (like a photo) or abstract growth (like a business or a problem).

例文

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1

スマホで地図を拡大します。

I will enlarge the map on my smartphone.

2

感染の拡大を防ぐことが重要です。

It is important to prevent the expansion of the infection.

3

この写真、もっと拡大して見て。

Zoom in more on this photo and look.

語族

名詞
拡大
Verb
拡大する
副詞
拡大して
形容詞
拡大された
関連
拡大鏡
💡

覚え方のコツ

The first kanji 拡 means 'extend' and the second 大 means 'big'. Think of 'extending' something to make it 'big'.

クイックテスト

もっと詳しく見たいので、写真を( )してください。

正解!

正解は: 拡大

例文

1

スマホで地図を拡大します。

everyday

I will enlarge the map on my smartphone.

2

感染の拡大を防ぐことが重要です。

formal

It is important to prevent the expansion of the infection.

3

この写真、もっと拡大して見て。

informal

Zoom in more on this photo and look.

4

都市の拡大は野生動物の住処を奪っている。

academic

The expansion of cities is depriving wild animals of their habitats.

5

来年は海外事業の拡大を目指します。

business

Next year, we aim for the expansion of our overseas business.

語族

名詞
拡大
Verb
拡大する
副詞
拡大して
形容詞
拡大された
関連
拡大鏡

よく使う組み合わせ

拡大コピー enlarged copy
規模を拡大する to expand the scale
感染拡大 spread of infection
販路拡大 expansion of sales channels
拡大図 enlarged view/diagram

よく使うフレーズ

拡大解釈

broad interpretation (often stretching the truth)

再拡大

re-expansion / resurgence

拡大表示

enlarged display

よく混同される語

拡大 vs 拡張

Kakucho (拡張) usually refers to expanding capacity or functions, while Kakudai (拡大) focuses on physical size or spread.

拡大 vs 成長

Seicho (成長) is used for biological growth or personal development, whereas Kakudai is used for systems, sizes, or scopes.

📝

使い方のコツ

Use 'kakudai suru' to turn this noun into a verb. It is the standard word used for 'zoom in' on digital devices.

⚠️

よくある間違い

Do not use 'kakudai' when talking about people getting taller or plants growing; use 'seichou' instead.

💡

覚え方のコツ

The first kanji 拡 means 'extend' and the second 大 means 'big'. Think of 'extending' something to make it 'big'.

📖

語源

A Sino-Japanese compound consisting of 拡 (enlarge/extend) and 大 (big).

文法パターン

~を拡大する (transitive: to enlarge something) ~が拡大する (intransitive: something expands) 拡大[noun] (used as a prefix, e.g., 拡大コピー)
🌍

文化的な背景

On Japanese digital interfaces and photocopiers, you will always see '拡大' for the zoom or enlarge button.

クイックテスト

もっと詳しく見たいので、写真を( )してください。

正解!

正解は: 拡大

関連単語

学会

A1

An academic society or a professional organization where scholars and researchers share their findings. It also commonly refers to the specific academic conferences or meetings organized by these groups.

法人

A1

A legal entity or organization, such as a company or non-profit, that is recognized by law as having rights and duties similar to those of a person. It distinguishes a group or institution from an individual human being in legal and business matters.

組合

A1

A formal organization or association formed by individuals or groups with a common interest, most commonly referring to a labor union or a cooperative. It describes a collective body where members work together to achieve shared social, economic, or professional goals.

グループ

A1

A collection of people, animals, or things that are together or considered together. It is a loanword from English used to describe social circles, categorized items, or organized teams in various settings.

チーム

A1

A group of people working together toward a common goal, such as in sports, business, or a school project. It is a loanword from the English word 'team' and is used in almost identical contexts in Japanese.

地理

A1

Geography refers to the study of the physical features of the earth and its atmosphere, including the distribution of populations and resources. In daily life, it often describes the layout, terrain, or spatial understanding of a specific area or town.

地域

A1

A noun referring to a specific area, region, or district characterized by certain features or boundaries. It is commonly used to describe local communities or geographical sections within a larger city or country.

境界

A1

A physical or conceptual line that marks the limit or division between two areas, states, or things. It is used to describe where one thing ends and another begins, such as a land border or the division between work and private life.

都市

A1

A 'toshi' is a large and densely populated urban area that serves as a center for politics, economy, and culture. It is the formal term for 'city' or 'metropolis', typically used in administrative, geographical, or statistical contexts.

都会

A1

A noun referring to a large city or urban area characterized by high population density and modern infrastructure. It is often used to describe the bustling lifestyle or environment of a city in contrast to rural areas.

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