Deceit
All a b c d e f g h i j k l m n o p q r s t u v w x y z
All CEFR A1 A2 B1 B2 C1 C2
Content locale
EN 英語 BN ベンガル語 HI ヒンディー語 ES スペイン語 FR フランス語 DE ドイツ語 RU ロシア語 ZH 中国語 JA 日本語
All Vocabulary Cards All Vocabularies
C1 noun /dɪˈsiːt/

Deceit

欺瞞; 詐欺; 嘘
Meaning
the action or practice of deceiving someone by concealing or misrepresenting the truth
Example
His deceit was discovered when the truth about his qualifications came to light.
彼の欺瞞は、彼の資格についての真実が明らかになったときに発覚しました。
C1 noun /dɪˈrɪʒən/

derision

嘲笑
Meaning
Contemptuous ridicule or mockery.
Example
His ideas were greeted with derision by the audience.
彼のアイデアは観客によって嘲笑された。
C1 noun ˈdaɪ.nə.sti

dynasty

王朝
Meaning
A line of hereditary rulers of a country; a succession of people from the same family who play a prominent role in business, politics, or another field.
Example
The Ming dynasty ruled China for centuries.
明王朝は何世紀にもわたって中国を支配していました。
C1 verb /dɪˈfeɪm/

defame

名誉毀損
Meaning
to harm someone's reputation by spreading false information
Example
He was defamed by malicious rumors.
彼は悪意のある噂で中傷されました。
C1 noun /ˌdɒmɪˈneɪʃən/

domination

支配
Meaning
the exercise of control or influence over someone or something
Example
The empire sought domination over its neighbors.
帝国は隣国に対する支配を求めていた。
C1 verb /daɪˈleɪt/

dilate

拡大する
Meaning
To make wider, larger, or more open.
Example
The doctor used drops to dilate the patient's pupils.
医者は患者の瞳孔を拡げるために点眼薬を使いました。
C1 noun /ˌdiː.kɒmpəˈzɪʃən/

decomposition

分解
Meaning
the process of decaying or breaking down into simpler parts
Example
The decomposition of leaves enriches the soil.
葉の分解は土壌を豊かにします。
C1 adjective /drəˈkoʊniən/

draconian

ドラコニアン
Meaning
Extremely harsh and severe, especially laws or rules.
Example
The new regulations were criticized as draconian.
新しい規制はドラコニアンだと批判されました。
C1 verb /dɪsˈpruːv/

disprove

反証する
Meaning
to show that something is false or wrong
Example
The scientist worked hard to disprove the old theory.
科学者は古い理論を反証するために一生懸命働いた。
C1 verb /dɪˈtɛst/

detest

嫌う
Meaning
To dislike intensely or hate.
Example
I detest waking up early on weekends.
私は週末に早起きするのが嫌いです。
C1 noun /drɑːft/ (UK), /dræft/ (US)

draught

Meaning
a current of cool air in a room or another confined space; also a portion of liquid, especially beer, served from a barrel or cask
Example
She closed the window to keep out the cold draught.
C1 verb /ˈduːdəl/

doodle

Meaning
To draw or scribble absentmindedly, often while thinking about something else.
Example
She doodled flowers in the corner of her notebook during class.
C1 noun /ˈdrɛsˌmeɪkər/

dressmaker

洋裁師
Meaning
A person who makes or alters women's clothing professionally.
Example
The dressmaker crafted a beautiful gown for the bride.
洋裁師は花嫁のために美しいドレスを作った。
C1 noun /ˌdɪs.əˈreɪ/

disarray

混乱
Meaning
A state of disorganization or untidiness; confusion or disorder.
Example
His desk was in complete disarray.
彼の机は完全に混乱していました。
C1 adjective /dɪsˈkwaɪətɪŋ/

disquieting

不安を引き起こす
Meaning
Causing worry, unease, or anxiety.
Example
The news report was deeply disquieting to the public.
そのニュース報告は公衆にとって非常に不安を引き起こすものでした。
C1 verb /dɪsˈkʌlər/

discolor

色あせる
Meaning
to change color, especially in a way that spoils the original appearance
Example
The fabric began to discolor after being left in the sun.
生地は太陽の下に置かれてから色が変わり始めました。
C1 adjective /ˈdɪzməl/

Dismal

陰気な; 落ち込んだ; 悲しい
Meaning
gloomy; depressing; causing sadness or despair
Example
The weather was dismal with heavy rain and dark clouds.
天気は雨と暗い雲で陰気でした。
C1 noun /ˌdɪsəˈbiːdiəns/

disobedience

不従順
Meaning
failure or refusal to obey rules, laws, or authority
Example
The child's disobedience worried his parents.
子供の不従順は両親を心配させました。
C1 noun /dɪˈfen.dənt/

Defendant

被告
Meaning
an individual, company, or institution sued or accused in a court of law
Example
The defendant pleaded not guilty to all charges brought against him.
被告は、彼に対するすべての告発に対して無罪を主張しました。
C1 adjective /dɪˈspɪrɪtɪd/

dispirited

落胆した
Meaning
Having lost enthusiasm, hope, or confidence; dejected.
Example
After losing the match, the team looked dispirited.
試合に負けた後、チームは落胆して見えた。
C1 noun/verb /dɪsˈdeɪn/

disdain

Meaning
The feeling that someone or something is unworthy of respect; to regard with contempt.
Example
She looked at the messy room with open disdain.
C1 verb /dɪˈfrɔːd/

defraud

詐欺
Meaning
to illegally take money or valuables from someone by deception
Example
The company was accused of trying to defraud investors.
その会社は投資家をだまそうとしたとして告発されました。
C1 adjective /dɪˈmɒnstrəbl/

demonstrable

証明可能
Meaning
clearly able to be shown or proven
Example
There was demonstrable evidence that he was innocent.
彼が無罪であることを示す証明可能な証拠がありました。
C1 verb /ˈdæb.əl/

dabble

軽く取り組む
Meaning
To take part in an activity in a casual or superficial way.
Example
He dabbled in painting during his college days.
彼は大学時代に絵を描くことを楽しんでいた。
C1 verb /daʊs/

douse

消す / 注ぐ
Meaning
to pour liquid over; to extinguish a fire or light
Example
Firefighters doused the flames with water.
消防士たちは水で炎を消しました。
C1 noun /ˈdiːvə/

diva

有名な女性歌手
Meaning
a famous female singer; a woman who is admired or behaves like a star
Example
The pop diva performed her latest hit to a cheering crowd.
ポップディーバは観衆の前で最新のヒットを披露しました。
C1 noun /dɪˈten.ʃən/

Detention

停学; 拘留
Meaning
the action of detaining someone or being detained in official custody
Example
The student received detention for repeatedly disrupting the class.
生徒は繰り返しクラスを乱したため、停学を受けました。
C1 adjective /dɪsˈɪntrəstɪd/

disinterested

無関心
Meaning
not influenced by personal interest; impartial or neutral
Example
The judge remained disinterested in the case.
裁判官はその事件に無関心のままでした。
C1 adjective ˈdɪs.pər.ət

disparate

異なる
Meaning
containing elements very different from one another.
Example
Their opinions were disparate, leading to debates.
彼らの意見は異なり、討論を引き起こしました。
C1 adjective /dɪˈspɒndənt/

despondent

Meaning
feeling or showing deep hopelessness or discouragement
Example
She felt despondent after losing her job.
C1 noun /ˈdɒɡmə/

dogma

ドグマ
Meaning
A principle or set of principles laid down by an authority as incontrovertibly true.
Example
The religious leader strictly adhered to traditional dogma.
宗教的指導者は伝統的なドグマに厳格に従った。
C1 verb /dɪsˈbænd/

disband

解散する
Meaning
to break up and stop functioning as a group or organization
Example
The club decided to disband after twenty years of activity.
クラブは20年の活動後に解散することを決定した。
C1 verb ˈdwɪn.dl

dwindle

減少する
Meaning
To diminish gradually in size, amount, or strength; to become progressively smaller.
Example
His savings dwindled due to unexpected expenses.
予期しない支出のため、彼の貯金は減少しました。
C1 noun /dɪˈprɛsənt/

depressant

抑制剤
Meaning
A drug that reduces functional or nervous activity in the body.
Example
Alcohol acts as a depressant on the central nervous system.
アルコールは中枢神経系に抑制剤として作用します。
C1 verb /diːˈkoʊd/

decode

Meaning
to convert a coded message into a readable form; to interpret meaning
Example
The software can decode the hidden message within seconds.
C1 noun dɪˈskrep.ən.siz

discrepancies

不一致
Meaning
Differences between things that should be the same
Example
Discrepancies in regulations delay progress.
規則の不一致が進行を遅らせている。
C1 verb /diːˈhaɪdreɪt/

dehydrate

Meaning
to remove water from something; to lose water or body fluids
Example
Running in the heat can quickly dehydrate you.
C1 noun /ˈduːmz.deɪ/

Doomsday

世界の終わり; 最後の審判の日
Meaning
the last day of the world's existence; a time of catastrophic destruction
Example
The preacher spoke about doomsday and the importance of preparing spiritually.
伝道師は世界の終わりと霊的な準備の重要性について話しました。
C1 verb diːˈsɛn.sɪ.taɪz

desensitize

脱感作
Meaning
To make someone less sensitive or reactive to something through repeated exposure.
Example
Constant exposure to violence can desensitize people.
継続的な暴力の露出は人々を鈍感にする可能性があります。
C1 verb /ˌdɪsəˈlaʊ/

disallow

許可しない
Meaning
to refuse to allow or accept something
Example
The referee disallowed the goal for offside.
審判はオフサイドのためゴールを認めませんでした。
C1 noun /ˈdeɪtəm/ or /ˈdætəm/

datum

データ
Meaning
a single piece of information; a fact used as a basis for reasoning or calculation
Example
Each datum in the survey was carefully analyzed.
調査の各データは慎重に分析されました。
C1 adjective /dɪˈsɪd.ju.əs/

deciduous

落葉樹
Meaning
Referring to trees that shed their leaves seasonally, typically in autumn.
Example
Oak and maple trees are deciduous, shedding leaves in autumn.
オークとカエデの木は落葉樹で、秋に葉を落とします。
C1 adjective /ˈdiːviəs/

devious

狡猾な
Meaning
Skillful at using underhanded tactics to achieve goals; not straightforward.
Example
He used a devious plan to gain control of the company.
彼は会社の支配権を握るために、狡猾な計画を使いました。
C1 noun, adjective /dɪˈfiːtɪst/

defeatist

敗北主義者
Meaning
A person who expects or is excessively ready to accept failure; showing a tendency to expect defeat.
Example
His defeatist attitude discouraged the rest of the team.
彼の敗北主義的な態度は、チームの他のメンバーを落胆させました。
C1 adjective dɪsˈfʌŋkʃənl

dysfunctional

機能不全の
Meaning
Not operating normally or properly.
Example
The dysfunctional system led to numerous delays and errors.
機能不全のシステムは多くの遅延とエラーを引き起こしました。
C1 verb /dɪˈspɛns/

dispense

配布する
Meaning
To distribute or provide something, especially in portions.
Example
The machine dispenses clean drinking water.
その機械は清潔な飲料水を供給します。
C1 adjective /dɪˈsperɪŋ/

Despairing

絶望的な
Meaning
feeling hopeless; in despair
Example
She felt despairing after losing her job.
彼女は仕事を失った後、絶望的な気持ちだった。
C1 noun /ˌdiː.viˈeɪ.ʃən/

Deviation

逸脱;定められたコースから外れること
Meaning
the action of departing from an established course; a departure from usual standards
Example
Any deviation from the established procedure must be reported immediately.
定められた手順からの逸脱は直ちに報告されなければなりません。
C1 adjective /ˈdraʊ.zi/

Drowsy

眠い; 疲れた; 無気力な
Meaning
feeling sleepy and lethargic; half asleep; tired
Example
I felt drowsy after the heavy meal.
重い食事の後、眠気を感じました。
C1 noun /doʊ/

doe

雌鹿
Meaning
a female deer, especially an adult one
Example
The doe and her fawn were grazing in the meadow.
雌鹿とその子鹿は草原で草を食べていました。
C1 adjective /dɪˈfʌŋkt/

defunct

営業停止、廃止
Meaning
No longer existing, operating, or functioning.
Example
The company became defunct after the financial crisis.
その会社は金融危機の後で廃業しました。
C1 noun/verb /dɪsˈkwaɪət/

disquiet

Meaning
A feeling of worry or unease; to make someone feel anxious or uneasy.
Example
The strange silence filled the room with disquiet.
C1 noun /ˈdel.ɪ.kə.si/

Delicacy

繊細さ; 高級な料理;
Meaning
fineness of texture or structure; a choice or expensive food; sensitivity in handling
Example
The chef prepared a local delicacy that was famous throughout the region.
シェフは地域全体で有名な地元のデリカシーを準備しました。
C1 noun /ˌdɪs.kʌl.əˈreɪ.ʃən/

discoloration

変色
Meaning
The process of changing or losing color; fading.
Example
Sun exposure causes discoloration of fabrics.
太陽光線は布地の変色を引き起こします。
C1 noun /dɪsˈɪntrəst/

disinterest

無関心
Meaning
lack of interest or concern
Example
His disinterest in the project was obvious.
そのプロジェクトへの無関心は明らかだった。
C1 noun ˌdjʊə.rəˈbɪl.ə.ti

durability

耐久性
Meaning
The ability to withstand wear, pressure, or damage; hard-wearing.
Example
The durability of materials affects performance.
素材の耐久性はパフォーマンスに影響を与えます。
C1 noun /ˌdɪsərˈteɪʃən/

dissertation

論文
Meaning
A long piece of writing on a particular subject, usually written for a university degree.
Example
She spent two years writing her doctoral dissertation.
彼女は博士論文を書くのに2年を費やしました。
C1 noun ˌdiːˌrɛɡ.jʊˈleɪ.ʃən

deregulation

規制緩和
Meaning
The removal or reduction of government regulations in an economic sector.
Example
Deregulation has increased competition in the telecommunications sector.
規制緩和は通信業界で競争を促進しました。
C1 noun /dɪˈvɪnɪti/

divinity

神性
Meaning
The quality or state of being divine; a deity.
Example
The priest spoke about the divinity of the soul.
神父は魂の神性について話しました。
C1 noun /diːˈkrɪp.ʃən/

decryption

復号
Meaning
The process of converting encrypted data back into its original form so it can be understood.
Example
Hackers attempted decryption of classified data.
ハッカーは分類されたデータの復号を試みました。
C1 adjective daɪˈvɜː.dʒənt

divergent

異なる
Meaning
Tending to be different or develop in different directions
Example
Divergent policies create challenges in collaboration.
異なる政策は協力に挑戦を生み出します。
C1 noun /ˈdæmpər/

damper

力、効果、または興奮を減少または抑制するもの
Meaning
something that reduces or lessens the force, effect, or excitement
Example
The cancellation of the trip put a damper on their enthusiasm.
旅行のキャンセルは彼らの熱意をそぐことになった。
C1 verb /dɔːnt/

daunt

脅す
Meaning
to make someone feel intimidated, discouraged, or less confident
Example
The steep climb did not daunt the experienced hikers.
急な登りは経験豊富なハイカーを怖がらせませんでした。
C1 noun /ˌdɪp.ləˈmæt.ɪk ˈmaɪl.stəʊn/

diplomatic milestone

外交上のマイルストーン
Meaning
A significant achievement or important event in diplomatic relations.
Example
Hosting the summit was a diplomatic milestone.
サミットの開催は外交上のマイルストーンでした。
C1 verb /dɪsˈlɒdʒ/

dislodge

追い出す
Meaning
To remove or force out from a position, especially one that is fixed or hard to move.
Example
The troops dislodged the enemy from the hill.
部隊は敵を丘から追い出した。
C1 adjective draʊt rɪˈzɪs.tənt

drought-resistant

耐乾燥
Meaning
Able to survive and grow despite limited water availability or drought conditions.
Example
Drought-resistant crops can survive in arid conditions.
耐乾燥作物は乾燥した条件でも生き残ることができます。
C1 adjective /dɪˈklærətɪv/

declarative

宣言的
Meaning
relating to a statement that declares something; in grammar, a sentence that makes a statement
Example
A declarative sentence simply states a fact or opinion.
宣言的な文は、単に事実や意見を述べるものです。
C1 noun /dɪˈfɪʃ.ən.si/

Deficiency

不足; 欠乏; 不足感
Meaning
a lack or shortage of something; inadequacy or insufficiency
Example
The doctor diagnosed a vitamin D deficiency in the patient's blood test.
医師は患者の血液検査でビタミンDの不足を診断しました。
C1 adjective /dɪˈraɪsɪv/

derisive

軽蔑的な
Meaning
Expressing contempt or ridicule.
Example
She gave a derisive laugh at his attempt to sing.
彼女は彼の歌おうとする試みに対して軽蔑的な笑い声を上げた。
C1 noun /deɪˈtɒnt/

detente

緊張関係の緩和
Meaning
the easing of strained relations, especially between countries
Example
The treaty helped bring about a détente between the two nations.
その条約は、二国間の緊張関係を緩和するのに役立ちました。
C1 adjective /dɪˈfɛnsəbəl/

defensible

守ることができる / 正当化できる
Meaning
Capable of being protected against attack or criticism; justifiable.
Example
Her decision was legally defensible.
彼女の決定は法的に守ることができた。
C1 noun dɪˌzɝː.t̬ə.fɪˈkeɪ.ʃən

desertification

砂漠化
Meaning
The process by which fertile land becomes desert, typically as a result of drought, deforestation, or inappropriate agriculture.
Example
Deforestation accelerates desertification.
森林伐採は砂漠化を加速させます。
C1 adjective /dɪˈlɪriəs/

delirious

デリリアス
Meaning
in an extremely disturbed or excited state of mind, often due to illness or emotion
Example
He was delirious with fever and kept muttering nonsense.
彼は熱でデリリアスで、無意味なことを呟いていた。
C1 adjective /ˈdaɪ.si/

dicey

危険な
Meaning
Risky or unpredictable; potentially dangerous.
Example
Investing in that company looks pretty dicey right now.
その会社への投資は今、かなり危険なように見える。
C1 verb ˈdiː.vi.eɪt

deviate

逸脱する
Meaning
To depart from an established course or normal pattern.
Example
He tends to deviate from the original plan.
彼は元の計画から外れる傾向がある。
C1 noun /ˈdrʌdʒəri/

drudgery

退屈で骨の折れる仕事
Meaning
Hard, menial, or dull work.
Example
She wanted to escape the drudgery of her daily routine.
彼女は日常の退屈なルーチンから抜け出したかった。
C1 noun /daɪˈvɜː.dʒəns/

divergence

分岐
Meaning
The process or state of diverging; a difference or deviation between two or more things.
Example
The divergence in their opinions led to a heated debate.
彼らの意見の相違は激しい議論を引き起こしました。
C1 noun /dɪˈvaɪzər/

divisor

除数
Meaning
A number by which another number is divided.
Example
In the equation 12 ÷ 3, the number 3 is the divisor.
方程式12 ÷ 3では、数字3が除数です。
C1 adjective /ˈdwɪndlɪŋ/

dwindling

減少
Meaning
Gradually reducing in number, size, or strength.
Example
The villagers relied on dwindling water supplies.
村人たちは減少していく水の供給に依存していた。
C1 adjective /dɪsˈkɔːrdənt/

discordant

不協和音
Meaning
disagreeing or clashing; harsh and jarring in sound
Example
The discordant notes of the band hurt our ears.
バンドの不協和音の音が私たちの耳を痛めました。
C1 adjective /ˈdaʊ.ər/

dour

厳格
Meaning
relentlessly severe, stern, or gloomy in manner or appearance
Example
His dour expression made the meeting uncomfortable.
彼の厳格な表情は会議を不快にした。
C1 verb /ˌdɪsɪnˈtæŋɡl/

disentangle

ほどく
Meaning
To free something or someone from a tangle or complication.
Example
She tried to disentangle her hair from the branches.
彼女は枝から髪の毛をほどこうとしました。
C1 noun /daɪˈvɜː.ʃən/

Diversion

迂回
Meaning
the action of turning something aside from its course; an activity that diverts the mind
Example
The road closure forced a diversion through the countryside for all travelers.
道路の閉鎖により、すべての旅行者は田舎道を通って迂回することを余儀なくされました。
C1 noun /dɪsˈsɜːrvɪs/

disservice

Meaning
A harmful action; something that does damage rather than help.
Example
Spreading false information is a disservice to the community.
偽の情報を広めることは、コミュニティに害を与えることです。
C1 verb /dɪˈpoʊz/

depose

Meaning
to remove someone from office or power, especially suddenly and forcefully
Example
The rebels managed to depose the dictator after years of unrest.
C1 noun /ˈdɪŋɡi/

dinghy

ディンギーボート
Meaning
a small boat, often carried or towed by a larger vessel, used for short trips or as a lifeboat
Example
They rowed the dinghy back to the yacht.
彼らはヨットに戻るためにディンギーを漕いだ。
C1 verb /dɪˈsɛm.ɪ.neɪt/

disseminate

普及する
Meaning
To spread or give out something, especially news, information, ideas, etc., to a lot of people.
Example
Social media helps to disseminate information quickly.
ソーシャルメディアは情報を迅速に普及するのに役立ちます。
C1 noun /draɪ fɪʃ/

Dry fish

干物
Meaning
fish that has been preserved by drying in the sun or by other dehydration methods
Example
Dry fish is a popular preserved food in many coastal regions.
干物は多くの沿岸地域で人気のある保存食です。
C1 adjective /dɪˈvɔɪd/

devoid

空虚
Meaning
Completely lacking or without something.
Example
His speech was devoid of any real emotion.
彼のスピーチは実際の感情が空虚だった。
C1 verb /dɪsˈkwɑːlɪfaɪ/

disqualify

失格する
Meaning
to officially prevent someone from participating or being eligible
Example
The referee decided to disqualify the player for cheating.
審判は不正行為のために選手を失格にすることを決定しました。
C1 verb /ˌdɪsəˈsɛmbəl/

disassemble

分解する
Meaning
To take apart something into its separate pieces.
Example
He had to disassemble the computer to repair it.
彼は修理のためにコンピュータを分解しなければならなかった。
C1 noun /dɪsˈlɛksiə/

dyslexia

ディスレクシア
Meaning
A learning disorder characterized by difficulty reading due to problems identifying speech sounds and decoding words.
Example
The teacher used special methods to help the student with dyslexia.
先生はディスレクシアの学生を助けるために特別な方法を使いました。
C1 noun /dɪsˈɒn.ər/

Dishonour

不名誉
Meaning
a state of shame or disgrace; lack of honor or integrity; failure to fulfill obligations
Example
Breaking his promise brought dishonour to his name and family legacy.
約束を破ったことが彼の名前と家族の遺産に不名誉をもたらした。
C1 adjective /dɪˈstrɔːt/

distraught

動揺した
Meaning
extremely upset and anxious, often to the point of being unable to think clearly
Example
She was distraught after losing her pet.
ペットを失った後、彼女は動揺していた。
C1 noun /dɪˈsɜːn.mənt/

discernment

洞察力
Meaning
The ability to judge well or understand something correctly; keen insight.
Example
His discernment in business decisions made him successful.
彼のビジネスの決定における洞察力は彼を成功させた。
C1 noun /dɪˈspɜːrʒən/

dispersion

分散
Meaning
The action or process of distributing things or people over a wide area.
Example
The dispersion of seeds by the wind helps plants reproduce.
風による種子の散布は、植物の繁殖を助けます。
C1 noun ˌdaɪvɜːsɪfɪˈkeɪʃən

diversification

多様化
Meaning
The practice of spreading investments across various assets or sectors to reduce risk.
Example
Diversification helps to reduce investment risk.
ダイバーシフィケーションは投資リスクを減らすのに役立ちます。
C1 adjective deft

deft

器用
Meaning
Neatly skillful and quick in one's movements; dexterous and adroit.
Example
The artist's deft hands created a masterpiece.
アーティストの器用な手は傑作を作り出しました。
C1 adjective /dɪˈsɜːrnəbl/

discernible

明白な
Meaning
able to be seen, recognized, or understood
Example
There was a discernible change in his behavior.
彼の行動には明らかな変化があった。
C1 noun /dʌsk/

Dusk

夕暮れ; たそがれ
Meaning
the period of the day when daylight is fading; twilight
Example
They walked along the beach during dusk, watching the sunset.
彼らは夕暮れ時にビーチを歩きながら、日没を見ていました。
C1 noun /ˌdep.rɪˈveɪ.ʃən/

deprivation

剥奪, 欠乏, 不足
Meaning
The damaging lack of material benefits considered to be basic necessities in a society.
Example
Sleep deprivation affects cognitive function.
睡眠不足は認知機能に影響を与えます。
C1 noun ˌdɛməˈɡræfɪk trænˈzɪʃən

demographic transition

人口転換
Meaning
A shift in population patterns from high birth and death rates to low birth and death rates as a country develops economically
Example
The demographic transition indicates a shift towards an aging society.
人口転換は高齢化社会への移行を示しています。
C1 adjective /ˈdesələt/

Desolate

荒涼; 孤独; 不毛
Meaning
deserted; lonely; barren
Example
The abandoned village looked desolate and empty.
放棄された村は荒涼として空っぽに見えた。
C1 noun /ˈdɛsɪˌbɛl/

decibel

デシベル
Meaning
a unit used to measure the intensity of sound
Example
The noise level in the factory exceeded 90 decibels.
工場の騒音レベルは90デシベルを超えました。
C1 verb /deɪz/

daze

Meaning
to stun or confuse someone temporarily with a shock or surprise
Example
The bright lights dazed the runners as they entered the stadium.
C1 noun, adjective /dɪˈrɪvətɪv/

derivative

派生物
Meaning
Something that is based on another source; in math, a measure of how a function changes.
Example
The film was criticized for being too derivative of earlier works.
その映画は、前の作品を模倣しすぎて批判されました。
C1 adjective /dɪˈplɔːrəbl/

deplorable

ひどい
Meaning
deserving strong condemnation; shockingly bad in quality
Example
The refugees were living in deplorable conditions.
難民はひどい状況で生活していた。
C1 verb /dɪˈmiːn/

demean

侮辱する
Meaning
to cause someone to lose dignity or respect
Example
The manager demeaned his employees with rude remarks.
マネージャーは粗野なコメントで社員を侮辱しました。
C1 verb /daɪˈvɜːrdʒ/

diverge

分岐する
Meaning
to separate and go in different directions; to differ
Example
The two paths diverge at the fork in the road.
二つの道は交差点で分かれる。
C1 adjective /dɪˈɡreɪdɪd/

degraded

劣化した
Meaning
Reduced in quality, dignity, or condition.
Example
The villagers were forced to live in degraded conditions.
村人たちは劣化した状態で暮らさざるを得なかった。
C1 noun /ˌdɛfəˈmeɪʃən/

defamation

名誉毀損
Meaning
the act of damaging someone's reputation by making false statements
Example
The newspaper was sued for defamation of character.
その新聞は名誉毀損で訴えられた。
C1 verb /dɪˈdjuːs/

deduce

推測する
Meaning
to reach a conclusion by reasoning or inference
Example
From the evidence, the detective deduced that the suspect was lying.
証拠から、探偵は容疑者が嘘をついていることを推測しました。
C1 noun /ˌdɪspɛnˈseɪʃən/

dispensation

Meaning
An exemption from a rule or usual requirement; a system of order, government, or control.
Example
The school granted him a special dispensation to skip the exam due to illness.
C1 noun /ˌdɪspəˈzɪʃən/

disposition

Meaning
A person's usual attitude or temperament; arrangement or tendency.
Example
She has a cheerful disposition despite the difficulties.
C1 noun /ˌdɪsəˈluːʃən/

dissolution

解散
Meaning
the act of formally ending or breaking apart something, such as an organization or marriage
Example
The dissolution of the company was announced yesterday.
会社の解散は昨日発表されました。
C1 verb /dɪˈflɛkt/

deflect

反らす / 避ける
Meaning
to cause something to change direction; to avoid answering directly
Example
The shield deflected the incoming arrow.
盾は飛んできた矢を反らした。
C1 adjective /dɪˈmɪnjətɪv/

diminutive

非常に小さい
Meaning
extremely or unusually small
Example
Despite his diminutive size, he was a powerful leader.
その非常に小さい体格にもかかわらず、彼は強力なリーダーだった。
C1 adjective /dɪsˈpæʃənət/

dispassionate

冷静な
Meaning
not influenced by strong emotion; impartial
Example
The judge remained dispassionate throughout the trial.
裁判官は裁判全体を通して冷静さを保ちました。
C1 adjective /dɪˈʃɛvəld/

disheveled

乱れた
Meaning
Untidy, messy, or in disorder, especially of hair or clothing.
Example
He arrived with disheveled hair and wrinkled clothes.
彼は乱れた髪とシワの寄った服で到着しました。
C1 verb /dɪsˈhɑːrtn/

dishearten

落胆させる
Meaning
to cause someone to lose determination or confidence; to discourage
Example
The constant rejection letters began to dishearten the young writer.
継続的な拒否の手紙が若い作家を落胆させ始めた。
C1 noun /ˈdaʊri/

dowry

持参金
Meaning
Property or money brought by a bride to her husband at marriage.
Example
The dowry tradition is still followed in some cultures.
いくつかの文化では、持参金の伝統が今でも守られています。