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C1 adjective /dɪˈvɪzəbl/

divisible

割り切れる
Meaning
Capable of being divided by another number without leaving a remainder.
Example
Twelve is divisible by three and four.
12は3と4で割り切れます。
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 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。
B2 adjective /ˈdɒm.ɪ.nənt/

Dominant

支配的な; 影響力のある; 最も重要な
Meaning
controlling, influencing, or prevailing over others; most important or powerful
Example
The dominant player controlled the entire basketball game.
支配的な選手はバスケットボールの試合を完全に支配しました。
B2 noun /dɪsˈɡaɪz/

Disguise

変装; 偽装
Meaning
a means of altering one's appearance to conceal one's identity; something that hides the truth
Example
The spy wore an elaborate disguise to avoid being recognized by enemies.
スパイは敵に認識されないように精巧な変装をしていた。
C1 verb /dɪsˈsætɪsfaɪ/

dissatisfy

不満にさせる
Meaning
to fail to please or meet expectations; to make someone unhappy
Example
The poor service dissatisfies many customers.
悪いサービスは多くの顧客を不満にさせます。
B1 verb /dɪˈklɛər/

declare

宣言する
Meaning
To announce something formally or officially.
Example
The government declared a state of emergency.
政府は緊急事態を宣言しました。
A2 noun dɪˈskʌʃ.ənz

discussions

議論
Meaning
The action or process of talking about something in order to reach a decision or to exchange ideas.
Example
Discussions promote collaboration.
ディスカッションは協力を促進します。
A1 noun /dɔːɡ/

Dog

犬
Meaning
a domesticated carnivorous mammal that is typically kept as a pet or for work
Example
The loyal dog waited patiently for its owner to return home.
忠実な犬は、主人が家に帰るのを辛抱強く待っていました。
C1 noun dɪˈsʌɪsɪvnɪs

decisiveness

決断力
Meaning
The ability to make decisions quickly and effectively.
Example
His decisiveness during the crisis saved the company.
危機の際、彼の決断力が会社を救った。
A2 noun /ˈdaɪnɪŋ/

dining

食事
Meaning
the act of eating a meal, especially in a formal setting
Example
We enjoyed fine dining at the new restaurant.
私たちは新しいレストランで素晴らしい食事を楽しみました。
C1 noun/adjective /dɪˈtɜː.rənt/

deterrent

抑止力
Meaning
A thing that discourages or is intended to discourage someone from doing something.
Example
A strict law serves as a deterrent to crime.
厳格な法律は犯罪の抑止力として機能します。
C2 noun /ˌdɪsəˈvaʊəl/

disavowal

拒否
Meaning
the denial of any responsibility, connection, or support
Example
The politician issued a firm disavowal of the controversial remarks.
その政治家は物議を醸す発言に対して強い拒否を表明した。
C1 noun /dɪˈlɪriəm/

delirium

錯乱
Meaning
An acutely disturbed state of mind characterized by restlessness, illusions, and incoherence.
Example
The patient experienced delirium after the surgery due to the strong medication.
患者は手術後、強い薬物の影響で錯乱状態を経験しました。
C2 noun /ˈdɪktəm/

dictum

格言
Meaning
A formal pronouncement, authoritative statement, or maxim.
Example
The judge’s dictum clarified the principle of equality before the law.
裁判官の格言は法の前での平等の原則を明確にしました。
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。
B2 adjective daɪˈvɜːs

diverse

多様な
Meaning
Showing a great deal of variety; very different.
Example
Diverse industries enhance economic resilience.
多様な産業が経済的な回復力を高める。
C2 noun /ˈdɛkəˌɡræm/

decagram

デカグラム
Meaning
A metric unit of mass equal to ten grams.
Example
The package weighed exactly one decagram.
そのパッケージはちょうど1デカグラムの重さでした。
C1 verb /doʊt/

dote

溺愛する
Meaning
to show excessive love or fondness for someone or something
Example
She tends to dote on her grandchildren.
彼女は孫たちに溺愛する傾向があります。
B2 noun /dɪsˈrʌp.ʃən/

disruption

混乱
Meaning
Barrier or interruption, sudden disturbance in any process or service.
Example
The road construction caused major disruption in traffic flow.
道路建設は交通の流れに大きな混乱を引き起こしました。
C1 verb /ˈdɛnɪˌɡreɪt/

denigrate

貶める
Meaning
to criticize unfairly; to belittle or disparage someone or something
Example
He was quick to denigrate the achievements of his colleagues.
彼は同僚の業績をすぐに貶めました。
C2 adjective /ˌdaɪəˈkrɪtɪkəl/

diacritical

ダイアクリティカル
Meaning
Relating to a mark added to a letter to indicate a different pronunciation or stress.
Example
The word résumé has diacritical marks that change its meaning from resume.
‘レジュメ’という言葉には、意味を変えるダイアクリティカルマークがあります。
B2 adjective /ˈdred.fəl/

Dreadful

恐ろしい; 恐怖を引き起こす; 恐ろしい
Meaning
extremely bad or unpleasant; causing fear or suffering; terrible
Example
The weather was dreadful during our vacation.
私たちの休暇中、天気は恐ろしかった。
C1 noun ˈdɛf.ər.əns

deference

敬意
Meaning
Humble submission and respect.
Example
He showed deference to his elderly mentor.
彼は年上のメンターに敬意を示しました。
C2 noun /ˈdɛvɪlri/

devilry

悪戯
Meaning
Wicked or cruel behavior; mischievous actions.
Example
The children were full of devilry on Halloween night.
ハロウィンの夜、子供たちは悪戯でいっぱいだった。
C1 noun /dɪˌnɒmɪˈneɪʃən/

denomination

宗派, 価値
Meaning
a recognized autonomous branch of the Christian Church; a unit of value or currency
Example
The church belongs to a Protestant denomination.
その教会はプロテスタントの宗派に属しています。
C2 adjective /dɪsˈkʌmfɪtɪŋ/

discomfiting

不快な
Meaning
Causing unease, embarrassment, or discomfort.
Example
His discomfiting questions made everyone shift uncomfortably in their seats.
彼の不快な質問は、皆が座席で不安そうに動かせるようにさせた。
B2 verb /dɪsˈtɜːb/

disturb

邪魔する
Meaning
to interrupt or cause someone to stop what they are doing
Example
Please don’t disturb me while I’m studying.
勉強している間に私を邪魔しないでください。
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。
C2 noun /ˈdæstərd/

dastard

卑怯者
Meaning
a cowardly or dishonorable person
Example
Only a dastard would betray his closest friend.
裏切るのは卑怯者だけだ。
C1 verb /dɪˈkraɪ/

decry

非難する
Meaning
to publicly criticize or express strong disapproval of something
Example
Many activists decry the destruction of the rainforest.
多くの活動家が熱帯雨林の破壊を非難しています。
C2 verb /ˈdiːfælˌkeɪt/

defalcate

横領する
Meaning
to misuse or embezzle money that one is responsible for
Example
The accountant was accused of defalcating company funds.
会計士は会社の資金を横領したと非難されました。
C1 noun /ˈdæn.drʌf/

Dandruff

フケ
Meaning
small white or grey flakes of dead skin that form on the scalp and fall from the hair
Example
He used a special shampoo to treat his persistent dandruff problem.
彼は慢性的なフケの問題を治すために、特別なシャンプーを使った。
C2 noun /ˌdɪpsəˈmeɪniæk/

dipsomaniac

アルコール中毒者
Meaning
A person with an uncontrollable craving for alcoholic drinks.
Example
The novel portrayed the tragic downfall of a dipsomaniac who lost everything to alcohol.
その小説はアルコールに全てを失ったアルコール中毒者の悲劇的な転落を描いています。
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。
B2 verb /dɪˈpɪkt/

depict

Meaning
to represent or show something in a picture, story, or other art form
Example
The painting depicts a beautiful sunset over the sea.
B1 noun /ˈdɛdˌlaɪnz/

deadlines

締め切り
Meaning
The latest time or date by which something should be completed.
Example
Setting deadlines helps finish tasks.
締め切りを設定することでタスクを終わらせるのに役立ちます。
C1 adjective /dɪˈbɪl.ɪ.teɪ.tɪŋ/

debilitating

衰弱させる
Meaning
Making someone or something weak and infirm.
Example
The disease had a debilitating effect on his health.
その病気は彼の健康に衰弱をもたらした。
C2 adjective /ˈdɛprɪkətɔːri/

deprecatory

軽蔑的な
Meaning
expressing disapproval or belittling
Example
He gave a deprecatory remark about their performance.
彼は彼らのパフォーマンスについて軽蔑的なコメントをしました。
C1 verb /dɪˈsɛnt/

dissent

Meaning
To hold or express opinions that are different from those officially accepted.
Example
Several members dissented from the majority decision.
C2 noun ˈdɒɡ.ɪd.nəs

doggedness

執念
Meaning
Stubborn persistence in achieving something without giving up.
Example
His doggedness in pursuing his goals was inspiring.
目標達成における彼の執念は感動的だった。
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 noun /dɪˈkriː/

Decree

法令
Meaning
an official order issued by a legal authority; a judicial decision or edict
Example
The king issued a decree that all citizens must pay additional taxes.
王はすべての市民に追加の税金を支払うように命じる法令を出しました。
C1 verb /dɪˈfeɪs/

deface

傷つける
Meaning
to spoil the surface or appearance of something, especially by writing or drawing on it
Example
The vandals defaced the wall with graffiti.
ヴァンダルたちはグラフィティで壁を傷つけました。
B2 noun, verb /ˈdeɪ.bjuː/

debut

デビュー
Meaning
The first public appearance or performance of someone or something.
Example
The young actor made his debut on the big stage.
若い俳優は大きな舞台でデビューを果たした。
B2 noun /ˈden.sə.ti/

Density

密度
Meaning
the degree of compactness of a substance; the quantity of something per unit area
Example
The density of population in the city center is extremely high.
市の中心部の人口密度は非常に高い。
C2 noun /ˌdɪspjuːˈteɪʃən/

disputation

議論
Meaning
a formal debate or argument
Example
The disputation between the two scholars lasted for hours.
二人の学者の間での議論は数時間続いた。
B2 adjective /dɪˈvaɪn/

Divine

神聖な; 天上的な; 神のような; 神または神格に関連する
Meaning
heavenly; sacred; godlike; relating to God or a deity
Example
The divine beauty of the sunset took their breath away.
夕日の神聖な美しさは彼らの息を奪いました。
C1 noun, verb /dɪsˈɑːnər/

dishonor

Meaning
a state of shame or loss of respect; to bring shame upon someone or something
Example
The soldier felt he had brought dishonor to his family.
C1 adjective /dɪˈsɜːrnɪŋ/

discerning

鋭い
Meaning
having good judgment or insight; able to distinguish well
Example
He is a discerning reader who notices subtle details.
彼は鋭い読者で、微細な詳細に気づきます。
C2 noun /ˈdræɡˌnɛt/

dragnet

広域捜査
Meaning
A systematic search or investigation, often by police to catch criminals.
Example
The police launched a dragnet to capture the fugitives.
警察は逃亡者を捕まえるために広域捜査を開始した。
C2 adjective /dɪˈklæməˌtɔri/

declamatory

力強い演説スタイル
Meaning
speaking in a loud, rhetorical, or dramatic way
Example
The politician’s declamatory style impressed some but irritated others.
その政治家の力強い演説スタイルは一部の人々に感銘を与えたが、他の人々には不快感を与えた。
C1 adjective /dɪˈbeɪst/

debased

劣化した
Meaning
having lost quality, value, or moral character
Example
The debased currency lost the trust of the people.
劣化した通貨は人々の信頼を失った。
B2 noun /dɪsˈpoʊzl/

disposal

廃棄
Meaning
the action or process of getting rid of something
Example
The disposal of waste is crucial for maintaining a clean environment.
廃棄物の処理は清潔な環境を維持するために重要です。
C2 verb /ˈdɪðər/

dither

Meaning
to be indecisive or unable to make a decision
Example
He dithered for hours before choosing a restaurant.
C1 adjective ˌdet.rɪˈmen.təl

detrimental

有害な
Meaning
Tending to cause harm; damaging or harmful.
Example
Pollution has detrimental effects on fertility.
汚染は生殖能力に有害な影響を与えます。
C2 verb /dɪˈsɛvər/

dissever

分ける
Meaning
To separate or cut apart.
Example
The treaty sought to dissever the two hostile regions.
条約は二つの敵対的な地域を分割しようとした。
A2 verb /ˈdraɪvɪŋ/

driving

運転
Meaning
the act of controlling and operating a vehicle; guiding or motivating something forward
Example
She loves driving along the coast on weekends.
彼女は週末に沿岸をドライブするのが大好きです。
C1 noun /ˈdɪsɪdənt/

dissident

反体制派
Meaning
A person who opposes official policy, especially that of an authoritarian state.
Example
The dissident was arrested for speaking against the government.
反体制派は政府に対する発言で逮捕された。
B2 verb, noun /dɑːrt/

dart

ダート/急に走る
Meaning
to move suddenly and quickly; a small pointed missile thrown at a target
Example
The cat darted across the street to avoid the car.
猫は車を避けるために急いで道路を横切りました。
B1 adjective /dɪsˈɡʌstɪŋ/

disgusting

嫌な
Meaning
extremely unpleasant or offensive; causing strong dislike or revulsion
Example
The smell coming from the trash can was absolutely disgusting.
ゴミ箱からの臭いは完全に嫌なものでした。
A2 verb /dɪˈskraɪb/

describe

説明する
Meaning
to give an account of something in words, including details
Example
She described the scene vividly.
彼女はそのシーンを鮮明に説明した。
B2 noun/verb /dræft/

draft

ドラフト
Meaning
A preliminary version of a piece of writing; to prepare a preliminary version of a document.
Example
She finished the first draft of her novel.
彼女は小説の最初のドラフトを完成させました。
B1 adjective /dɪˈmændɪŋ/

demanding

要求が厳しい
Meaning
requiring much effort, skill, or attention; difficult to satisfy
Example
The job is very demanding and requires long hours of work.
その仕事は非常に要求が厳しく、長時間の労働が必要です。
B2 noun /doʊ/

dough

生地
Meaning
a mixture of flour, water, and other ingredients used to make bread or pastries
Example
She kneaded the dough for ten minutes before baking.
彼女は生地を10分間こねた後、それを焼きました。
B1 noun ˈdɪsɪplɪn

discipline

規律
Meaning
The practice of training people to obey rules or a code of behavior, using punishment to correct disobedience
Example
Discipline helps maintain focus and productivity.
規律は集中力と生産性を維持するのに役立ちます。
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。
A2 noun /ˈdrʌɡˌstɔːr/

drugstore

薬局
Meaning
A retail store that sells medicines, health-related products, and sometimes cosmetics or snacks.
Example
I stopped by the drugstore to buy some cold medicine.
風邪薬を買うために薬局に行きました。
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 verb /dɪˈfɔːrm/

deform

変形する
Meaning
to change the shape or form of something, especially in a way that makes it ugly or damaged; to distort
Example
The intense heat began to deform the plastic container.
高温がプラスチック容器を変形させ始めた。
A2 adjective /duː/

Due

期日; 予想される; 計画された
Meaning
owed as a debt; expected at a certain time; scheduled
Example
The assignment is due tomorrow.
課題は明日締め切りです。
C2 noun /draɪ ɡuːs ˈbɛri/

Dry goose berry

乾燥アムラ
Meaning
dehydrated amla fruit, rich in vitamin C and used for medicinal and culinary purposes
Example
Dry goose berry powder is excellent for hair growth.
乾燥アムラの粉末は、髪の成長に優れています。
C1 noun /ˈdɛspətɪzəm/

despotism

専制政治
Meaning
absolute power exercised in a cruel and oppressive way
Example
The people revolted against the era of despotism.
人々は専制政治の時代に反乱を起こしました。
C1 verb /daɪˈluːt/

dilute

薄める
Meaning
To make a liquid thinner or weaker by adding water or another solvent.
Example
You should dilute the juice with water before serving it to children.
子供たちに出す前にジュースを水で薄めるべきです。
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。
B2 adjective /dɪˈpɛndəbl/

dependable

信頼できる
Meaning
able to be trusted or relied on; consistently reliable
Example
She is a dependable colleague who always meets deadlines.
彼女はいつも締め切りを守る信頼できる同僚です。
B2 verb /doʊz/

doze

うたた寝
Meaning
To sleep lightly for a short time.
Example
He dozed off while reading the book.
彼は本を読みながらうたた寝をした。
A2 noun dɪˈveləpmənt

development

発展
Meaning
The process of developing or being developed; growth or progress.
Example
Development of Bengali society was hindered.
ベンガル社会の発展は妨げられた。
C1 verb /dɪˈsweɪd/

dissuade

思いとどまらせる
Meaning
To persuade someone not to do something.
Example
She tried to dissuade him from quitting his job.
彼女は彼に仕事を辞めさせないように説得しようとした。
B1 adjective /def/

Deaf

耳が聞こえない; 聴覚障害がある
Meaning
unable to hear; having a hearing impairment
Example
The deaf child learned to communicate using sign language.
そのろうの子供は手話を使ってコミュニケーションを学びました。
C2 adjective /ˌdeɪ.kɒlˈteɪ/

decollete

深い胸元の衣装
Meaning
of a woman's dress or top, cut low so as to reveal the neck and upper chest
Example
She wore a decollete gown to the party.
彼女はパーティーで深い胸元のドレスを着ていました。
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。
B2 noun /dɪˈdʌk.ʃən/

deduction

推論
Meaning
The process of reaching a conclusion through logical reasoning.
Example
His deduction from the evidence was accurate.
証拠から彼の推論は正確でした。
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 verb /dɪˈfjuːz/

diffuse

Meaning
to spread over a wide area or among a large number of people
Example
The smell of fresh bread diffused through the entire house.
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 verb /dɪˈmɔrəˌlaɪz/

demoralize

Meaning
to cause someone to lose confidence or hope
Example
The constant criticism demoralized the young athlete.
C1 adjective /ˈdestatəʊt/

Destitute

困窮した; 貧しい; 財産もお金もない
Meaning
extremely poor; without money or possessions
Example
Many families became destitute after the economic collapse.
経済崩壊後、多くの家族は困窮しました。
A2 noun /dɪˈsɪʒənz/

decisions

決定
Meaning
A conclusion or resolution reached after consideration; the action or process of deciding something.
Example
Making the right decisions in time was key to the project's success.
時間内に正しい決定を下すことがプロジェクトの成功の鍵でした。
C1 adjective dɪˈskrɪmɪnətɔːri

discriminatory

差別的
Meaning
Making or showing an unfair or prejudicial distinction between different categories of people or things.
Example
Discriminatory policies triggered protests.
差別的な政策は抗議を引き起こしました。
C1 adjective /dɪˈmɛntɪd/

demented

狂った / 非理性的
Meaning
behaving irrationally due to mental illness or extreme excitement
Example
He looked demented after hearing the shocking news.
彼は衝撃的なニュースを聞いた後、正気を失ったように見えました。
B2 verb /ˈdɛzɪɡneɪt/

designate

指名する
Meaning
to officially assign, appoint, or indicate something or someone
Example
The committee will designate a new chairperson next week.
委員会は来週、新しい会長を指名する予定です。
C2 noun /ˌdɪləˈtænt/

dilettante

愛好家
Meaning
A person who takes up an art, activity, or subject merely for amusement, especially in a superficial way.
Example
He was dismissed as a dilettante in the art world because he lacked formal training.
彼は芸術界で愛好家として退けられました、なぜなら正式な訓練が不足していたからです。
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 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。
B1 verb /dɪˈnaɪ/

deny

否定する
Meaning
to refuse to accept or admit something; to declare something untrue
Example
He denied stealing the money.
彼はお金を盗んだことを否定した。
B2 adjective /dɪˈraɪvd/

derived

派生した
Meaning
Developed or obtained from something else; not original.
Example
The word is derived from Latin.
その単語はラテン語から派生しています。
C1 noun /ˌdɪsbɪˈliːvər/

disbeliever

不信者
Meaning
a person who does not believe in something, especially a religion or idea
Example
He was called a disbeliever for rejecting the traditional faith.
彼は伝統的な信仰を拒否したため、不信者と呼ばれました。
B2 verb /dɪsˈeɪbl/

disable

無効にする
Meaning
to make something unable to function or operate
Example
The technician disabled the alarm system temporarily.
技術者はアラームシステムを一時的に無効にしました。
C1 verb /ˈdæmpən/

dampen

湿らせる, 和らげる
Meaning
to make something slightly wet; to make something less strong, active, or intense
Example
The rain dampened the excitement of the outdoor concert.
雨が屋外コンサートの興奮を和らげました。
B2 adjective daɪˈdʒes.tɪv

digestive

消化の
Meaning
Relating to the digestion of food.
Example
Digestive enzymes help break down food.
消化酵素は食べ物を分解するのを助けます。
C1 noun ˌdɪm.ɪˈnjuː.ʃən

diminution

減少
Meaning
A reduction in the size, extent, or importance of something; decrease.
Example
There has been a diminution in air pollution.
大気汚染の減少がありました。
C2 verb /diːˈmæɡnɪtaɪz/

demagnetize

デマグネタイズ
Meaning
To remove or reduce the magnetic properties of something.
Example
The technician demagnetized the old cassette tape.
技術者は古いカセットテープの磁気を取り除いた。
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 noun /dɪˌnʌnsiˈeɪʃən/

denunciation

非難 / 公共の告発
Meaning
the public condemnation or accusation of someone or something
Example
The journalist's article was a strong denunciation of corruption.
ジャーナリストの記事は腐敗に対する強い非難でした。
C2 adjective /daɪˈɜːrnəl/

diurnal

昼行性
Meaning
active during the day; occurring daily
Example
Most birds are diurnal creatures, active in daylight hours.
ほとんどの鳥は昼行性の生き物で、日中に活動しています。
B2 noun /depθ/

Depth

深さ; 深いまたは深遠な特質
Meaning
the distance from the top or surface to the bottom; the quality of being intense or profound
Example
The depth of the ocean in this area reaches over three thousand meters.
この地域の海の深さは3,000メートルを超えています。
C2 adjective /daɪˈæfənəs/

diaphanous

透けている
Meaning
Light, delicate, and translucent.
Example
She wore a diaphanous dress that shimmered in the sunlight.
彼女は太陽の光の中で輝く透けているドレスを着ていた。
C2 noun /dɪˈbɔːtʃəri/

debauchery

堕落
Meaning
excessive indulgence in sensual pleasures; corruption or vice
Example
The novel depicts the debauchery of the aristocrats in the city.
この小説は街の貴族たちの堕落を描いています。
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 /dɪˈluːʒən/

delusion

錯覚
Meaning
A false belief or impression maintained despite being contradicted by reality.
Example
He lived under the delusion that he was invincible.
彼は自分が無敵だという錯覚の中で生きていた。
C1 verb /dɪˈstɪl/

distill

Meaning
To purify a liquid by heating and cooling; to extract the essential meaning or most important aspects.
Example
The factory distills water to make it safe for drinking.
B2 noun /ˈdʌmi/

dummy

ダミー / バカな人
Meaning
a model or replica of a human used for practice, display, or testing; also a term for a foolish person
Example
The tailor used a dummy to display the dress.
仕立て屋はドレスを展示するためにダミーを使った。
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 noun /ˈdɑːrwɪnɪzəm/

darwinism

ダーウィニズム
Meaning
the theory of biological evolution developed by Charles Darwin, emphasizing natural selection
Example
Darwinism revolutionized the way scientists understood the origin of species.
ダーウィニズムは科学者たちが種の起源を理解する方法を革命的に変えました。
C1 adjective /dɪˈlæpɪˌdeɪtɪd/

dilapidated

老朽化した
Meaning
Fallen into disrepair or ruin due to neglect or age.
Example
The family lived in a dilapidated house at the edge of town.
その家族は町の端にある老朽化した家に住んでいました。
A2 adjective /ˈdɜː.ti/

Dirty

汚い; よごれた; 不快な; 道徳的に堕落した
Meaning
not clean; covered with dirt; unpleasant; morally corrupt
Example
The kitchen was dirty after cooking.
料理後、台所は汚かった。
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。
A2 verb /ˌdɪsəˈpɪər/

disappear

消える
Meaning
to cease to be visible; to vanish
Example
The magician made the rabbit disappear.
マジシャンはウサギを消した。
C1 adjective /dɪsˈsɪmɪlər/

dissimilar

異なる
Meaning
Not alike; different.
Example
Though they are twins, their personalities are dissimilar.
彼らは双子だが、性格は異なる。
C1 noun /ˈdræm.ə.tɪst/

dramatist

劇作家
Meaning
a person who writes plays
Example
Shakespeare is one of the greatest dramatists in history.
シェイクスピアは歴史上最も偉大な劇作家の一人です。