delusion
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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。
A2 noun /ˈdrɑː.mə/

drama

ドラマ
Meaning
a play for theater, radio, or television, or an exciting or emotional situation
Example
She loves watching historical drama series.
彼女は歴史的なドラマシリーズを見るのが好きです。
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.
C2 verb /dɪsˈbɑːr/

disbar

弁護士を法曹界から正式に除外する
Meaning
to officially remove a lawyer from the legal profession
Example
The corrupt lawyer was disbarred for unethical conduct.
腐敗した弁護士は非倫理的な行動により除外されました。
A2 adjective /draɪ/

Dry

乾燥した; 湿気や液体がない; 退屈な
Meaning
free from moisture or liquid; not wet; lacking interest or excitement
Example
The desert has very dry climate.
砂漠は非常に乾燥した気候です。
C1 noun /dɪsˈsɜːrvɪs/

disservice

害
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 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 /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。
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 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。
C2 verb /dɪˈbɪlɪteɪt/

debilitate

弱める
Meaning
to weaken or make someone or something infirm
Example
The long illness debilitated his strength.
長い病気が彼の力を弱めた。
C2 adjective /dɪˈsɛnʃəs/

dissentious

対立を引き起こす
Meaning
Causing or likely to cause disagreement and conflict.
Example
His dissentious remarks divided the group further.
彼の対立的な発言は、グループをさらに分裂させた。
B2 verb /dɪˈstɔːrt/

distort

Meaning
to twist or change the shape, appearance, or meaning of something so it is not true or accurate
Example
The mirror distorted her reflection.
C1 verb /drɛntʃ/

drench

びしょ濡れにする
Meaning
to make someone or something completely wet
Example
The sudden rain drenched the players on the field.
突然の雨がフィールドの選手たちをびしょ濡れにした。
B2 noun /dɪˈpen.dənt/

Dependent

依存している; 扶養されている
Meaning
a person who relies on another for financial support; someone who depends on others
Example
As a tax dependent, she could not file her own tax return separately.
税金の扶養控除対象者として、彼女は自分の税務申告を別々に提出することができませんでした。
C2 verb /ˌdɪskəmˈpoʊz/

discompose

動揺させる
Meaning
To disturb the order or calmness of something or someone.
Example
The unexpected question seemed to discompose her.
予期しない質問が彼女を動揺させたようだ。
C1 verb /dɪsˈpærɪdʒ/

disparage

Meaning
to criticize someone or something in a way that shows a lack of respect
Example
It is unfair to disparage people for their opinions.
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。
C2 noun /djuːˈplɪsɪti/

duplicity

二重性
Meaning
Deceitfulness or double-dealing; dishonesty.
Example
Her duplicity was revealed during the investigation.
調査中に彼女の二重性が明らかになった。
C1 adjective /ˈdaʊn.kæst/

downcast

Meaning
feeling sad, dejected, or with lowered eyes
Example
He looked downcast after hearing the bad news.
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。
B1 noun /dɪˈlaɪt/

Delight

喜び; 楽しみ
Meaning
a feeling of happiness or pleasure; something that gives great pleasure
Example
The children's laughter filled her heart with pure delight.
子供たちの笑い声は彼女の心を純粋な喜びで満たしました。
C2 noun/verb /dɪsˈfeɪvər/

disfavor

不支持 / 不快
Meaning
disapproval or dislike; to regard with disapproval
Example
The new policy fell into disfavor with the public.
新しい政策は一般の人々の間で不評を買いました。
A2 noun /drʌɡ/

drug

薬物
Meaning
a substance used as a medicine or an illegal addictive substance
Example
The doctor prescribed a new drug for the illness.
医者はその病気のために新しい薬を処方しました。
C1 adjective /diːˈsɛntrəlaɪzd/

decentralized

分散型
Meaning
Controlled by several local offices or authorities rather than one single one.
Example
The decentralized system allowed for more control at local levels.
分散型システムは、ローカルレベルでのより多くの制御を可能にしました。
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。
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。
B1 verb /daɪn/

dine

食事する
Meaning
to eat a meal, especially the main meal of the day
Example
We usually dine at seven o'clock in the evening.
私たちは通常、夕方七時に食事します。
B2 verb /dɪˈmɪnɪʃ/

diminish

Meaning
to make or become less; to reduce in size, importance, or value
Example
Over time, his influence in the company began to diminish.
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。
C2 adjective /ˈdæpəld/

dappled

斑点模様
Meaning
Marked with spots or patches of light and shade or different colors.
Example
The forest floor was dappled with sunlight.
森の地面は日光で斑点模様ができていた。
A2 noun /ˈdiː.teɪl/

detail

詳細
Meaning
An individual feature, fact, or item of information.
Example
She explained the plan in great detail.
彼女は計画を詳細に説明しました。
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 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 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 dɪˈdʒɛnəˌreɪtɪv dɪˈzizɪz

degenerative diseases

変性疾患
Meaning
Medical conditions that involve the deterioration or progressive decline of tissues, organs, or functions
Example
Degenerative diseases are common in an aging population.
変性疾患は高齢化した人口に一般的です。
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 verb /ˈdrɪbəl/

dribble

Meaning
to let liquid flow slowly in drops or to move a ball skillfully with repeated small kicks or bounces
Example
The baby dribbled milk on his shirt.
C1 verb /dɪsˈkleɪm/

disclaim

否定する
Meaning
to deny responsibility or connection with something
Example
The company disclaimed responsibility for the accident.
その会社は事故に対する責任を否定しました。
C2 adjective /dɪsˈkɜrsɪv/

discursive

脱線的
Meaning
Tending to digress or move from topic to topic; lengthy and rambling.
Example
His discursive style made the lecture hard to follow.
彼の脱線的なスタイルは講義を追うのが難しかった。
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。
C2 noun /ˈdɛsɪkənt/

desiccant

乾燥剤
Meaning
a substance that absorbs moisture and keeps things dry
Example
Silica gel packets are commonly used as a desiccant in packaging.
シリカゲルのパケットは、パッケージングで乾燥剤として一般的に使用されます。
A2 noun /dɪˈziːz/

disease

病気
Meaning
An illness or medical condition that affects the body or mind.
Example
The doctor is researching a cure for the disease.
医者はその病気の治療法を研究しています。
C2 noun /ˈdrɪvəl/

drivel

戯言
Meaning
silly or nonsensical talk
Example
The politician’s speech was full of meaningless drivel.
政治家の演説は意味のない戯言でいっぱいだった。
B2 verb /daɪˈvɜːrt/

divert

Meaning
to turn aside from a course; to redirect or entertain
Example
The police diverted traffic to a side road.
C1 adjective /dɪˈspɒndənt/

despondent

Meaning
feeling or showing deep hopelessness or discouragement
Example
She felt despondent after losing her job.
B2 noun /ˈdeb.ɪt/

Debit

デビット; 借金; 引き落とし
Meaning
an entry recording an amount owed; money taken from a bank account
Example
The bank showed a debit of fifty dollars from my checking account.
銀行は私の当座預金口座から50ドルのデビットを表示しました。
B1 noun/verb /ˈdɒkjʊmənt/

document

文書
Meaning
Noun: A written, printed, or electronic record that provides information or evidence. Verb: To record information in written or electronic form.
Example
She carefully documented all the expenses of the trip.
彼女は旅行のすべての費用を慎重にドキュメントした。
B2 noun /ˈdɛnɪmz/

denims

デニムのパンツ
Meaning
pants or clothes made from denim fabric, usually jeans
Example
He wore blue denims with a white shirt.
彼は白いシャツと青いデニムを履いていた。
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。
C2 noun /ˈdeɪ.ɪs/

Dais

演壇
Meaning
a raised platform, typically at one end of a room or hall, for speakers or honored guests
Example
The principal stood on the dais to address the entire school assembly.
校長は演壇に立ち、全校集会に話しかけました。
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。
B1 verb /dræɡ/

drag

引きずる
Meaning
to pull something heavy or difficult to move along the ground; to go somewhere unwillingly; to last too long
Example
She had to drag the heavy suitcase up the stairs.
彼女は重いスーツケースを階段で引きずらなければならなかった。
A2 verb /ˌdɪsəˈɡriː/

disagree

異議を唱える
Meaning
to have a different opinion; to not agree
Example
I disagree with your assessment of the situation.
私はあなたの状況評価に同意しません。
B2 verb /dɒdʒ/

dodge

避ける
Meaning
to move quickly to one side to avoid something; to avoid dealing with something cleverly or dishonestly
Example
The boxer managed to dodge his opponent's punch.
ボクサーは相手のパンチをかわすことに成功した。
C1 noun /ˈdɛmənˌstreɪtər/

demonstrator

デモンストレーター, 抗議者
Meaning
a person who shows how something works or takes part in a public protest
Example
The demonstrators marched peacefully through the city streets.
デモ参加者は平和的に街の通りを行進しました。
C2 noun /ˈdɔɪən/

doyen

尊敬される人物
Meaning
The most respected or prominent person in a particular field.
Example
He is regarded as the doyen of modern literature in the country.
彼はその国の現代文学のドイエンと見なされています。
C1 noun /ˈdaɪəˌlɛkt/

dialect

方言
Meaning
A particular form of a language spoken in a specific region or by a specific group.
Example
He speaks a dialect of Bengali that is common in rural areas.
彼は田舎で一般的なベンガル語の方言を話します。
C2 noun /ˌdɪfəˈrɛnʃə/

differentia

区別する特徴
Meaning
A distinguishing characteristic that sets one thing apart from another.
Example
The differentia of humans is their ability to reason abstractly.
人間の区別する特徴は抽象的に考える能力です。
A1 adverb /daʊn/

down

下
Meaning
from a higher to a lower position
Example
He walked down the stairs slowly.
彼はゆっくりと階段を下りてきました。
C1 noun /djuːn/

dune

砂丘
Meaning
A hill or ridge of sand formed by the wind, usually found in deserts or near beaches.
Example
The children played on the sand dune by the beach.
子供たちはビーチの砂丘で遊んでいました。
C2 adjective /dɪˈkrɛpɪt/

decrepit

老朽
Meaning
worn out or weakened by age or neglect
Example
The decrepit old house was on the verge of collapse.
その老朽化した家は崩壊寸前でした。
C1 verb /dɪˈfaɪl/

defile

汚す
Meaning
to pollute, corrupt, or make dirty
Example
The river was defiled by industrial waste.
川は工業廃水によって汚された。
C2 noun /ˌdɪvɪˈneɪʃən/

divination

占い
Meaning
the practice of seeking knowledge of the future or the unknown by supernatural means
Example
Ancient people often relied on divination to guide important decisions.
古代の人々は重要な決定を導くために占いに頼ることがよくありました。
B1 noun dɪˈskʌvəriz

discoveries

発見
Meaning
The action or process of finding or learning something for the first time; facts or things discovered.
Example
His discoveries revolutionized multiple fields.
彼の発見は複数の分野で革命を起こした。
B2 verb, noun /dɒn/

don

着る / リーダー
Meaning
to put on (an article of clothing); also used as a title for a respected person
Example
She donned her coat before leaving.
彼女は出かける前にコートを着た。
C2 verb /dɪsˈtɛnd/

distend

膨張する
Meaning
to swell or expand by pressure from within
Example
Her stomach began to distend after the large meal.
大きな食事の後、彼女のお腹は膨らみ始めました。
B2 adjective/noun ˌdem.əˈɡræf.ɪk

demographic

人口統計学的
Meaning
Relating to the structure of populations; statistical data relating to the population and particular groups within it.
Example
The company analyzes demographic trends before launching a product.
会社は製品を発売する前に人口統計学的傾向を分析します。
C2 verb /dɪˈstreɪn/

distrain

差し押さえる
Meaning
to seize someone's property in order to obtain payment of rent or other money owed
Example
The landlord distrained the tenant's furniture for unpaid rent.
家主は未払いの家賃のために借家人の家具を差し押さえました。
B2 adverb /ˈdɪmli/

dimly

薄暗く
Meaning
in a faint or unclear way; with little light
Example
The room was dimly lit by a single candle.
部屋は一本のろうそくで薄暗く照らされていた。
B2 noun /dɪˈstrækʃənz/

distractions

気を散らすもの
Meaning
Things that prevent someone from concentrating on something else.
Example
Eliminate distractions for better productivity.
生産性を高めるために、気を散らすものを排除してください。
C2 noun /daɪn/

dyne

力の単位（センチメートル・グラム・秒の単位系）
Meaning
A unit of force in the centimeter-gram-second (cgs) system equal to 10⁻⁵ newtons.
Example
The physicist measured the force in dynes.
物理学者はダインで力を測定しました。
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。
B2 noun /diːp siː/

deep sea

深海
Meaning
The deep parts of the sea or ocean, typically beyond the continental shelf.
Example
Many deep-sea creatures produce bioluminescence for survival.
多くの深海生物は生存のために生物発光を生成します。
B2 adjective /ˈdevəsteɪtɪŋ/

devastating

Meaning
causing severe shock, distress, or destruction; extremely damaging or upsetting
Example
The earthquake had a devastating effect on the city.
C2 noun /ˌdɪsɪˈpeɪʃən/

dissipation

浪費
Meaning
the process of disappearing or wasting; excessive indulgence in pleasure
Example
The dissipation of his fortune left him in poverty.
彼の財産の浪費は彼を貧困に追いやった。
C1 noun ˈdɪl.ɪ.dʒəns

diligence

勤勉
Meaning
Careful and persistent work or effort.
Example
Success requires patience and diligence.
成功には忍耐と勤勉が必要です。
C2 noun /ˌdɛrɪˈlɪkʃən/

dereliction

職務怠慢
Meaning
the state of being abandoned; neglect of duty
Example
The officer was charged with dereliction of duty.
その役人は職務怠慢で起訴された。
B2 verb dɪsˈrʌpt

disrupt

破壊する
Meaning
To interrupt or disturb the normal progress or activity of something.
Example
Individual pursuits disrupt social harmony.
個々の追求は社会的調和を破壊します。
A2 noun /ˈdraɪ.vər/

Driver

運転手
Meaning
a person who operates a motor vehicle
Example
The taxi driver knew all the shortcuts through the busy city.
タクシー運転手は忙しい街を通るすべての近道を知っていました。
B1 noun /ˈdɛkeɪd/

decade

十年
Meaning
A period of ten years.
Example
The country has changed a lot in the past decade.
その国は過去10年間で大きく変わりました。
B2 adjective /dɪˈstɪŋɡwɪʃt/

Distinguished

優れた; 名誉のある; 有名な; 尊厳のある外見または態度
Meaning
notable; honored; famous; having a dignified appearance or manner
Example
He is a distinguished professor at the university.
彼は大学の優れた教授です。
C2 adjective /ˌdaɪəˈbɒlɪk/

diabolic

悪魔的
Meaning
Extremely evil or cruel; characteristic of the devil.
Example
The villain devised a diabolic scheme.
悪役は悪魔的な計画を立てた。
B2 noun /doʊs/

dose

用量
Meaning
a measured amount of a medicine or drug taken at one time
Example
The doctor prescribed one dose of the medicine every six hours.
医者は6時間ごとに1回薬のドーズを処方しました。
B2 adjective /ˌdɪsədˈvæntɪdʒd/

disadvantaged

恵まれない
Meaning
Lacking the basic resources or conditions needed for a good standard of living or equal opportunities.
Example
The program provides support to disadvantaged children.
そのプログラムは恵まれない子供たちに支援を提供しています。
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。
C2 noun /dɪˈfoʊliənt/

defoliant

Meaning
a chemical that causes leaves to drop from plants, often used in warfare or agriculture
Example
The army sprayed defoliant to clear the forest cover.
B2 noun dɪˈstrækʃən

distraction

気晴らし
Meaning
Something that prevents concentration or takes attention away from something else.
Example
Distraction during study time can hinder learning.
勉強中の気晴らしは学習を妨げることがあります。
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。
C2 noun /doʊlt/

dolt

ばか
Meaning
A stupid or slow-witted person.
Example
Only a dolt would believe such a story.
そんな話を信じるのはばかだけだ。
C2 noun /dɪˈpləʊmətɪst/

diplomatist

外交官
Meaning
A person skilled in diplomacy; another word for diplomat.
Example
The diplomatist handled the negotiations with great tact.
外交官は交渉を巧みに取り扱いました。
C1 noun ˈdɛtrɪ.mənt

detriment

損害、害、障害
Meaning
Harm, damage, impairment.
Example
Smoking is a detriment to health.
喫煙は健康に対するデトリメントです。
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。
B2 noun /ˌdɒkjʊmɛnˈteɪʃən/

documentation

ドキュメンテーション
Meaning
material that provides official information or evidence
Example
The documentation for the project is available for review.
プロジェクトのドキュメンテーションはレビューのために利用可能です。
B1 verb /dɪˈvaɪd/

divide

分ける
Meaning
to separate into parts; to split or break apart
Example
Please divide the cake into eight pieces.
ケーキを8つに分けてください。
C1 noun /ˌdɪstɪˈleɪʃən/

distillation

蒸留
Meaning
The process of purifying a liquid by heating and cooling; the extraction of the essential meaning.
Example
Distillation is commonly used to produce alcoholic beverages.
蒸留はアルコール飲料の製造によく使用されます。
B1 noun dɪˈfens

defense

防御
Meaning
The action of defending from or resisting attack; protection from harm or danger.
Example
Defense was one of the central subjects.
防御は主要なテーマの一つだった。
A1 noun /deɪ/

Day

日
Meaning
a period of twenty-four hours; the time during which there is light
Example
What a beautiful day it is today with clear blue skies!
今日は青空が広がる美しい日です！
C2 adjective /ˌdaɪəˈlɛktɪkəl/

dialectical

弁証法的
Meaning
Relating to the logical discussion of ideas and opinions.
Example
She took a dialectical approach to solve the complex issue.
彼女は複雑な問題を解決するために弁証法的なアプローチを取りました。
C2 noun /ˈdaɪˌsɪləbəl/

disyllable

二音節語
Meaning
a word consisting of two syllables
Example
The word 'happy' is a disyllable.
‘ハッピー’という単語は二音節語です。
C2 noun /ˈdaɪətraɪb/

diatribe

激しい非難
Meaning
A forceful and bitter verbal attack against someone or something.
Example
The politician launched a diatribe against his opponents.
政治家は自分の対戦相手に対して激しい非難を始めた。
B2 noun /ˈdoʊnər/

donor

ドナー
Meaning
A person who gives something, especially to a charity or cause.
Example
The donor contributed generously to the hospital’s new wing.
ドナーは病院の新しい翼に寛大に寄付しました。
B1 noun /ˌdɛmənˈstreɪʃən/

demonstration

デモ, 示威
Meaning
the act of showing something clearly, or a public protest
Example
The workers organized a demonstration for better wages.
労働者たちはより良い賃金のためにデモを組織した。
B1 noun /dɪˈsɪʒənˌmeɪkɪŋ/

decision-making

意思決定
Meaning
the process of making decisions, especially important or business-related decisions
Example
The CEO's decision-making was crucial for the success of the company.
CEOの意思決定は、会社の成功にとって重要でした。
C1 noun /ˈdrɪz.əl/

Drizzle

小雨
Meaning
light rain falling in very fine drops; a very light rainfall
Example
The gentle drizzle continued throughout the morning, making everything misty.
穏やかな小雨は朝の間中続き、すべてが霧のようになりました。
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。
C2 adjective /ˌdɛl.ɪˈtɪə.ri.əs/

deleterious

有害な
Meaning
Causing physical or mental harm or damage.
Example
Smoking has deleterious effects on health.
喫煙は健康に有害な影響を与えます。
C2 noun /dɪˈsweɪʒən/

dissuasion

説得しないこと
Meaning
The act of persuading someone not to take a course of action.
Example
Her dissuasion prevented him from making a bad investment.
彼女の説得しないことは、彼が悪い投資をしないようにしました。
A2 verb /dɪˈskʌs/

discuss

話し合う
Meaning
To talk about something with another person or group in detail.
Example
We need to discuss the project before finalizing it.
プロジェクトを最終決定する前に、それを話し合う必要があります。
C1 adjective /ˈdɛkədənt/

decadent

堕落的, 贅沢な
Meaning
Characterized by or reflecting a state of moral or cultural decline; excessively self-indulgent.
Example
The party was filled with decadent luxury and excess.
パーティーは堕落的な贅沢と過剰で満たされていました。
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.
B2 verb /ˌdɪsəˈpruːv/

disapprove

反対する
Meaning
to have a negative opinion about something; to consider something wrong or bad
Example
Many parents disapprove of smoking.
多くの親は喫煙を反対しています。
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。
B1 noun /dɪˈzɜːrts/ (noun: reward or punishment deserved)

deserts

誰かが得るべきもの、特に罰や報酬
Meaning
what someone deserves, especially punishment or reward
Example
He finally got his just deserts for cheating in the exam.
彼は試験でカンニングをして、ついに自分の正当な報いを受けました。
C1 verb /dɪˈbeɪs/

debase

低下させる
Meaning
to reduce the quality, value, or dignity of something
Example
Corruption can debase the values of a society.
腐敗は社会の価値観を低下させる可能性があります。
C1 noun /ˈdɛspɒt/

despot

暴君
Meaning
a ruler with absolute power, often ruling in a cruel or oppressive way
Example
The despot ruled the nation with fear and violence.
暴君は恐怖と暴力で国を支配した。
A1 noun /dres/

Dress

ドレス
Meaning
a piece of clothing for women or girls that covers the body and extends down over the legs
Example
She wore a beautiful blue dress to the party.
彼女はパーティーで美しい青いドレスを着ていました。
C1 noun /dɪˌpriː.ʃiˈeɪ.ʃən/

depreciation

減価償却
Meaning
A reduction in the value of an asset with the passage of time, due to wear and tear.
Example
The car's depreciation rate is high after five years.
車の減価償却率は5年後に高くなります。
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。
C2 noun /dɪˈpoʊnənt/

deponent

証人
Meaning
A person who gives testimony under oath, especially in a written deposition.
Example
The deponent confirmed the accuracy of the statement during the trial.
証人は裁判中に証言の正確性を確認しました。
B1 noun /dɒt/

dot

点
Meaning
a small round mark or spot
Example
She drew a red dot on the paper.
彼女は紙に赤い点を描きました。