拡かく大だい

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Common wordJLPTN3Freq.FrequencyTop 2,000

拡大する · noun or participle which takes 'suru'

Form	Positive	Negative
Dictionary	拡かく大だいする	拡かく大だいしない
Polite	拡かく大だいします	拡かく大だいしません
Past polite	拡かく大だいしました	拡かく大だいしませんでした
Past	拡かく大だいした	拡かく大だいしなかった
Te-form	拡かく大だいして	拡かく大だいしないで
Desire	拡かく大だいしたい	拡かく大だいしたくない
Potential	拡かく大だいできる	拡かく大だいできない
Passive	拡かく大だいされる	拡かく大だいされない
Causative	拡かく大だいさせる	拡かく大だいさせない
Causative passive	拡かく大だいさせられる	拡かく大だいさせられない
Volitional	拡かく大だいしよう
Polite volitional	拡かく大だいしましょう
Imperative	拡かく大だいしろ	拡かく大だいするな
Conditional	拡かく大だいすれば	拡かく大だいしなければ
Tara conditional	拡かく大だいしたら	拡かく大だいしなかったら

Meanings

noun, noun or participle which takes 'suru', transitive verb, intransitive verb

expansion; extension

General increase in scale, scope, or range. Used for physical, abstract, and organizational growth.

会かい社しゃは海かい外がい事じ業ぎょうの拡かく大だいを計けい画かくしている。
The company is planning an expansion of its overseas operations.
道どう路ろの拡かく大だい工こう事じが来らい月げつから始はじまる。
The road expansion work will start next month.

noun, noun or participle which takes 'suru', transitive verb, intransitive verb

magnification; enlargement

Specifically making something visually larger, such as an image, text, or map.

虫むし眼め鏡がねで文も字じを拡かく大だいして読よんだ。
I read the text by magnifying it with a magnifying glass.
写しゃ真しんを拡かく大だいすると細こまかい傷きずが見みえる。
When you enlarge the photo, small scratches become visible.

noun, noun or participle which takes 'suru', transitive verb, intransitive verb

escalation; spread

Often used for negative or uncontrolled growth, such as conflicts, diseases, or problems.

紛ふん争そうが拡かく大だいして隣りん国ごくにも影えい響きょうが出でている。
The conflict has escalated and is now affecting neighboring countries.
感かん染せん症しょうの拡かく大だいを防ふせぐために緊きん急きゅう対たい策さくが取とられた。
Emergency measures were taken to prevent the spread of the infectious disease.

See all 456 example sentences ›

Usage patterns

規き模ぼを拡かく大だいするto expand the scale (of a business, operation, etc.)
会かい社しゃは事じ業ぎょうの規き模ぼを拡かく大だいすることにした。
The company decided to expand the scale of its business.
〈物もの〉を拡かく大だいするto enlarge or magnify something (an image, text, etc.)
写しゃ真しんを拡かく大だいして細さい部ぶを確かく認にんした。
I enlarged the photo to check the details.
〈事こと〉が拡かく大だいする(a problem, conflict, disease, etc.) escalates or spreads
感かん染せんが急きゅう速そくに拡かく大だいしている。
The infection is spreading rapidly.
〈事こと〉を拡かく大だい解かい釈しゃくするto interpret something too broadly or liberally
彼かれはルールを拡かく大だい解かい釈しゃくして行こう動どうした。
He acted by interpreting the rule too liberally.

Kanji

拡broaden, extend, expand
大large, big

Transitive / intransitive

拡大 as a suru-verb is used both transitively and intransitively: transitively as in 「会社は事業を拡大した」 (The company expanded its business) and intransitively as in 「感染が拡大した」 (The infection spread).

Related words· 19

拡かく張ちょうN2sense 1
拡張 focuses on physical or functional extension (like expanding memory or a building), while 拡大 covers a broader range including abstract growth in scale.
増ぞう大だいN2sense 1
増大 emphasizes a numerical or quantitative increase (e.g., in amount or volume), whereas 拡大 emphasizes growth in scale or scope more generally.
広ひろがり
拡大 emphasizes an active increase in size or scale, while 広がり describes the resulting extent or breadth of something spreading.
増ぞう幅ふく
拡大 usually refers to physically enlarging or scaling something up, while 増幅 emphasizes increasing the intensity or strength of a signal, effect, or feeling.

Show 15 more

膨ぼう張ちょうN1
拡大 focuses on enlarging scale or scope, while 膨張 emphasizes physical swelling or uncontrolled growth from internal pressure.
ズーム
拡大 is the general word for enlargement or magnification of anything, while ズーム specifically refers to the zoom function of a camera, lens, or screen.
引ひき延のばし
拡大 is the general word for making something larger (scale, scope, size), whereas 引き延ばし specifically refers to enlarging a photograph.
拡かく充じゅうN2
拡大 is a general word for making something bigger in scale or size, while 拡充 specifically means expanding a system or service while also improving its quality.
広ひろがるN3
拡大する is a formal word for deliberate enlargement (e.g. in business or photography), while 広がる sounds more natural for something spreading on its own.
広ひろげるN3
拡大する is more formal and typically used for abstract enlargement like scale or scope, while 広げる covers both physical and abstract spreading in everyday speech.
激げき化か
拡大 means expansion or enlargement in scale or scope, whereas 激化 refers to the intensification of severity in an existing conflict or action.
エスカレート
拡大 is a neutral term for expansion or growth in size or scope, while エスカレート specifically implies a worsening spiral, often negative.
引ひき延のばすN1
拡大する is the neutral, general term for enlarging or magnifying something, while 引き伸ばす is specifically used for stretching a photo print larger.
展てん開かいN2
拡大 focuses on making something bigger in scale or size, while 展開 describes spreading out or deploying something over an area or organization.
肥ひ大だい
拡大 means expansion or magnification in a neutral or intentional sense, whereas 肥大 implies an unhealthy or excessive increase in size.
発はっ展てんN3
拡大 focuses on an increase in size or scope, while 発展 implies qualitative growth or advancement, not just size.
成せい長ちょうN3
拡大 means expansion in size or scale (e.g., of a market or business), while 成長 implies a more gradual, organic increase over time.
蔓まん延えん
拡大 means expansion or enlargement in a neutral or positive sense, while 蔓延 implies an undesirable, often uncontrollable spread.
広ひろまり
拡大 means expansion or enlargement in scale, whereas 広まり refers to the spread or dissemination of something across a wider area or audience.

Opposites· 5

縮しゅく小しょうN2sense 1
縮小 means shrinkage or reduction in scale, the direct opposite of 拡大's expansion or enlargement.
萎い縮しゅく
拡大 means to expand or grow larger, the opposite of 萎縮's sense of shrinking or withering.
ダウンサイジング
拡大 means expanding or enlarging something, the opposite of ダウンサイジング's meaning of shrinking scale.

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縮しゅく尺しゃく
拡大 means to enlarge or expand something, the opposite of 縮尺する, which means to draw or reduce something at a smaller scale.
局きょく限げんN1
拡大 means to expand or broaden, the opposite of 局限, which means to narrow something down to a limited scope.

Don't confuse with

特とく大だい
拡大 means 'enlargement' or 'to enlarge' (an action), while 特大 is a fixed size label meaning 'extra-large'; learners may confuse them because both contain 大.
広こう大だいN2
拡大 is a verb/noun meaning 'to enlarge or expand' something, while 広大 is an adjective meaning 'vast'; learners confuse them because of the similar 広/拡 kanji and related size meaning.

Word family· 29

拡かく大だい鏡きょう
magnifying glass; magnifier; loupe
不ふ拡かく大だい
nonexpansion; localization; nonaggravation
急きゅう拡かく大だい
rapid expansion; rapid growth; sharp increase
拡かく大だい率りつ
magnification ratio; magnification power
拡かく大だい管かん
expanding pipe; diffuser; expander; reducer

Show 6 more

信しん用よう拡かく大だい
credit expansion
内ない需じゅ拡かく大だい
expansion of domestic demand
勢せい力りょく拡かく大だい
expansion of influence; increase in power
市し場じょう拡かく大だい
market expansion
感かん染せん拡かく大だい
spread of infection
投とう資し拡かく大だい
increased investment; investment expansion

See all 29 in Explore →

Etymology

Sino-Japanese compound of 拡 (broaden, spread) and 大 (large). The exact historical derivation is uncertain, but the kanji combination naturally conveys 'make larger'.