disavow
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C2 verb /ˌdɪsəˈvaʊ/

disavow

否定する
Meaning
to deny responsibility for or connection with something
Example
He disavowed any involvement in the scandal.
彼はスキャンダルへの関与を否定した。
B2 noun /ˌdaɪəˈbiːtiːz/

diabetes

幸福
Meaning
a medical condition in which the body cannot properly control the level of sugar in the blood
Example
He was diagnosed with type 2 diabetes last year.
彼女は賞を受け取ったとき、幸せを隠せませんでした。
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。
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.
C1 verb /druːp/

droop

垂れる
Meaning
to bend or hang downward; to become weak or tired
Example
The flowers began to droop in the heat.
花は暑さで垂れ始めました。
B2 verb dɪˈtɪrɪəˌreɪts

deteriorates

悪化する
Meaning
To become progressively worse; to decline in quality, condition, or strength.
Example
The quality of air deteriorates due to pollution.
汚染によって大気の質が悪化する。
C2 noun /drɛɡz/

dregs

残渣
Meaning
the remnants of a liquid left in a container, together with any sediment or grounds; the most worthless part of something
Example
He drank the dregs of the coffee before leaving.
彼は出発する前にコーヒーの残渣を飲んだ。
A2 noun /ˈdɒlfɪn/

Dolphin

イルカ
Meaning
A highly intelligent marine mammal with a streamlined body and dorsal fin
Example
Dolphins are known for their playful behavior and intelligence.
イルカは遊び好きな行動と知性で知られています。
B2 adjective /dɪˈvoʊtɪd/

devoted

献身的
Meaning
Very loving, loyal, or dedicated.
Example
She is a devoted mother who always puts her children first.
彼女は常に子供たちを最優先にする献身的な母親です。
C1 verb /dɪˈbɑːr/

debar

禁止する
Meaning
To officially prevent someone from doing something.
Example
He was debarred from entering the competition due to cheating.
彼は不正行為のため競技への参加が禁止されました。
C2 noun /dɪˈsɛnʃən/

dissension

意見の相違
Meaning
Strong disagreement or difference of opinion, especially leading to discord within a group.
Example
The meeting ended in dissension among the committee members.
会議は委員会メンバー間の意見の相違で終了しました。
B2 verb /ˈdæzəl/

dazzle

魅了する
Meaning
to impress deeply or blind with brilliance or skill
Example
The magician's tricks dazzled the audience.
マジシャンのトリックは観客を驚かせた。
C2 noun /ˈdɛvɪltrɪ/

deviltry

悪魔的な行為
Meaning
Cruel or malicious behavior; mischief with an evil aspect.
Example
The villain’s deviltry terrified the townsfolk.
悪党の悪魔的な行為は町の人々を恐れさせました。
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。
C2 verb /deɪn/

deign

自分の尊厳を損ねて何かをする
Meaning
to do something considered beneath one's dignity
Example
The king did not deign to reply to the commoner.
王は平民に返答することをしなかった。
C2 noun /ˈdʌblɪt/

doublet

ダブレット / タイトジャケット
Meaning
a close-fitting jacket worn by men in the Renaissance; also, a pair of similar things
Example
The actor wore a velvet doublet for the Shakespearean play.
俳優はシェイクスピア劇のためにベルベットのダブレットを着ました。
B1 adjective /dɪsˈeɪbld/

disabled

障害者
Meaning
having a physical or mental condition that limits movements, senses, or activities
Example
The park has special facilities for disabled people.
公園には障害者用の特別な施設があります。
C2 verb /ˌdɪskəmˈbɑːbjuleɪt/

discombobulate

混乱させる
Meaning
to confuse or disconcert; to upset the normal order
Example
The sudden question seemed to discombobulate him.
突然の質問が彼を混乱させたようだ。
B1 verb /dɪˈspleɪ/

display

表示する
Meaning
to show or exhibit; to present for others to see
Example
The museum displays ancient artifacts.
博物館は古代の遺物を表示しています。
C2 noun /ˌdiːlɛkˈteɪʃən/

delectation

喜び
Meaning
great pleasure or delight
Example
She read the story aloud for the delectation of her friends.
彼女は友達の喜びのために物語を大声で読みました。
A2 noun /dɪˈlɪv.ə.ri/

Delivery

配達; 出産
Meaning
the action of delivering letters, parcels, or goods; the process of giving birth
Example
The delivery of the package was delayed due to bad weather conditions.
パッケージのデリバリーは悪天候のため遅れました。
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 /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 /dɪsˈrɛpjətəbl̩/

disreputable

不名誉な
Meaning
having a bad reputation; not considered respectable or trustworthy
Example
The journalist avoided staying in the disreputable part of town.
ジャーナリストは町の不名誉な地区に泊まるのを避けました。
A2 noun /ˈdæn.sər/

Dancer

ダンサー
Meaning
a person who performs dance, typically as a profession or art form
Example
The dancer performed gracefully on the stage.
ダンサーはステージで優雅に踊った。
C1 adjective /dɪˈpreɪvd/

depraved

堕落した
Meaning
morally corrupt or wicked
Example
The film depicts the life of a depraved criminal.
その映画は堕落した犯罪者の人生を描いています。
A1 noun/verb /deɪt/

date

Meaning
A particular day of the month or year; also, a social or romantic appointment.
Example
They decided to meet on the date of her birthday.
B2 adjective /ˈduː.əl/

Dual

二重の
Meaning
having two parts or consisting of two elements; double
Example
She has dual citizenship of both countries.
彼女は二つの国の二重国籍を持っています。
C2 adjective /dɪˈrɒɡətɪv/

derogative

侮辱的
Meaning
Expressing a low opinion or showing lack of respect.
Example
He made a derogative remark about her work.
彼は彼女の仕事について侮辱的な発言をした。
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。
C2 noun /dɪˌlɪniˈeɪʃən/

delineation

delineation
Meaning
the precise description, drawing, or outlining of something
Example
The artist’s delineation of the landscape was remarkably accurate.
アーティストの風景のデリニエイションは驚くほど正確でした。
C2 noun /ˈdaɪɡræf/

digraph

二重音字
Meaning
A pair of letters representing a single sound, such as 'sh' in 'ship'.
Example
In the word 'phone', the letters 'ph' form a digraph.
'電話'という言葉では、'ph'の文字が二重音字を形成します。
C2 noun /doʊˈniː/

donee

受贈者
Meaning
A person who receives a gift or donation.
Example
The scholarship fund’s donee expressed heartfelt gratitude.
奨学金基金の受贈者は心からの感謝の意を表しました。
C2 noun /ˈdɛntɪfrɪs/

dentifrice

歯磨き粉
Meaning
a substance such as powder, paste, or liquid used to clean teeth
Example
He bought a new herbal dentifrice from the pharmacy.
彼は薬局で新しいハーブの歯磨きを買った。
C2 noun /dɪˌlæpɪˈdeɪʃən/

dilapidation

荒廃
Meaning
The state of disrepair or ruin as a result of neglect.
Example
The old temple was in a state of dilapidation.
その古い寺院は廃墟の状態にありました。
B2 adverb /ˈdɛspərətli/

desperately

必死に
Meaning
in a way that shows despair or great need
Example
He called for help desperately after the accident.
事故後、彼は必死に助けを求めた。
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 /ˈdɒɡ roʊz/

Dog-rose

ドッグローズ
Meaning
A wild rose species with pink or white flowers and thorny stems, common in hedgerows
Example
The dog-rose bush grew wild along the countryside path.
ドッグローズの低木は、田舎の道沿いに野生で育ちました。
C2 noun /ˈdɒldrəmz/

doldrums

Meaning
A state of inactivity, stagnation, or low spirits; also a region near the equator with calm winds.
Example
After the project failed, the team was stuck in the doldrums for months.
C2 noun /ˈdɛkəˌpɒd/

decapod

十脚目
Meaning
An arthropod with ten limbs, such as crabs, lobsters, and shrimps.
Example
The lobster is a well-known decapod.
ロブスターは有名な十脚目です。
C1 verb /ˈdaʊn.pleɪ/

downplay

軽視する
Meaning
to make something seem less important than it really is
Example
The company tried to downplay the risks of the new product.
会社は新しい製品のリスクを軽視しようとしました。
C1 verb /ˌdɪskənˈsɜːrt/

disconcert

動揺させる
Meaning
To unsettle, confuse, or disturb the composure of someone.
Example
The sudden change of plans disconcerted the team.
突然の計画変更がチームを混乱させた。
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 noun /ˌdɜːrməˈtɑːlədʒi/

dermatology

皮膚科学
Meaning
The branch of medicine concerned with the skin and its diseases.
Example
He studied dermatology at medical school.
彼は医学部で皮膚科学を学んだ。
C2 adjective /ˌdaɪəˈtɒmɪk/

diatomic

二原子
Meaning
Consisting of two atoms.
Example
Oxygen is a diatomic molecule.
酸素は二原子分子です。
A1 adjective /dɑːk/

Dark

暗い
Meaning
having little or no light; of a deep shade approaching black
Example
She prefers dark colors for her winter clothes.
彼女は冬の服に暗い色を好みます。
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 adjective /daɪˈvɜːrsɪfaɪd/

diversified

多様化された
Meaning
Made or having variety in form, nature, or content.
Example
The company adopted a diversified business strategy to reduce risks.
その会社はリスクを減らすために多様化されたビジネス戦略を採用した。
B2 noun /daɪm/

dime

10セント硬貨
Meaning
a small coin, especially a U.S. coin worth ten cents
Example
He gave me a dime for the phone call.
電話のためにダイムを一枚くれました。
B1 adjective /dɪˈlaɪtɪd/

delighted

喜んで
Meaning
feeling or showing great pleasure and happiness
Example
She was delighted with the surprise gift.
彼女はサプライズギフトにとても喜んでいました。
C1 noun /ˈdaɪnəˌmoʊ/

dynamo

電気を発生させる機械; 大きなエネルギーと熱意を持つ人物
Meaning
A machine that generates electricity; a person with great energy and enthusiasm.
Example
She is the real dynamo behind the success of the company.
彼女は会社の成功の背後にある本物のダイナモです。
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 /ˌdɛkləˈmeɪʃən/

declamation

朗読
Meaning
a formal speech delivered with rhetorical or dramatic effect
Example
Her declamation captivated the audience at the competition.
彼女の朗読は競技会で観客を魅了しました。
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。
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。
C2 adjective /ˈdaʊ.di/

dowdy

時代遅れ / ださい
Meaning
unfashionable, dull, or shabby in appearance
Example
She wore a dowdy dress to the party.
彼女はパーティーに時代遅れのドレスを着ていた。
C1 verb /ˌdɪsɪnˈɡeɪdʒ/

disengage

解放する
Meaning
To release or detach oneself from something; to withdraw.
Example
He tried to disengage from the heated argument.
彼は熱い議論から解放しようとした。
C1 verb /dɛlv/

delve

Meaning
To investigate deeply; to dig into a subject or area.
Example
The researcher delved into ancient manuscripts to find clues.
B2 noun /dwɔːrf/

dwarf

小人
Meaning
a person, animal, or plant much smaller than average
Example
Snow White lived with seven dwarfs.
白雪姫は7人の小人と一緒に暮らしていました。
C2 adjective /ˌdɪspjuːˈteɪʃəs/

disputatious

議論好きな
Meaning
fond of or given to argument and debate
Example
His disputatious nature often led to heated conversations.
彼の議論好きな性格は、しばしば熱い議論を引き起こす。
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 verb /dʌn/

dun

借金を取り立てる
Meaning
to demand payment of a debt persistently
Example
The landlord dunned the tenant for unpaid rent.
家主は未払いの家賃のためにテナントに何度も支払いを求めました。
A2 adjective /dɑːrk bluː/

Dark blue

ダークブルー
Meaning
a deep shade of blue color
Example
She wore a dark blue dress to the party.
彼女はパーティーにダークブルーのドレスを着て行った。
C2 verb /ˌdɪskəˈmoʊd/

discommode

邪魔する
Meaning
To cause inconvenience or trouble to someone.
Example
I hope my request does not discommode you.
私のリクエストがあなたに不便をかけないことを願っています。
B1 noun /ˈdeə.ri/

Dairy

牛乳が生産される建物や農場; 牛乳から作られた製品; 牛乳と乳製品を販売する店
Meaning
a building or farm where milk is produced; products made from milk; a shop selling milk and milk products
Example
The local dairy provides fresh milk and cheese to the entire neighborhood.
地元のデイリーは、新鮮な牛乳とチーズを地域全体に提供しています。
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。
B1 noun /ˌdek.əˈreɪ.ʃən/

Decoration

装飾; 飾り; 賞;
Meaning
the process or art of decorating something; ornamental items used to beautify
Example
The Christmas decoration transformed the ordinary room into a festive wonderland.
クリスマスのデコレーションは、普通の部屋をお祝いのワンダーランドに変えました。
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。
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。
B2 noun dɪˈplɔɪmənt

deployment

展開
Meaning
The action of bringing resources into effective action.
Example
The deployment of the new software was completed successfully.
新しいソフトウェアの展開は成功裏に完了しました。
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 noun /ˈdeb.juː.tɑːnt/

debutante

社会で初めて公式に登場する若い女性
Meaning
A young woman making her first formal appearance in society.
Example
The debutante wore a white gown at the ball.
デビュータントは舞踏会で白いドレスを着ていました。
C1 noun /ˌdev.əˈtiː/

Devotee

信者; 献身者
Meaning
a person who is very interested in and enthusiastic about someone or something
Example
As a devotee of classical music, she attended every concert in the city.
クラシック音楽の信者として、彼女は都市のすべてのコンサートに参加していました。
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 verb /ˌdɪskəˈnɛkt/

disconnect

Meaning
to detach or separate from a connection or source
Example
Please disconnect the charger from the power outlet.
B1 adjective /ˈdaɪɪŋ/

Dying

死にかけている; 死亡している;
Meaning
approaching death; in the process of dying; fading away
Example
The dying plant needs water immediately.
死にかけている植物は直ちに水が必要です。
C2 noun /ˈdaɪəˌdɛm/

diadem

王冠
Meaning
A crown or headband worn as a symbol of royalty or authority.
Example
The queen wore a glittering diadem at the coronation.
女王は戴冠式で輝く王冠を身に着けていました。
C2 verb /dɪˈfreɪ/

defray

費用を負担する
Meaning
to provide money to pay the costs of something
Example
The grant will help defray the cost of education.
その助成金は教育費用の負担を助けます。
C2 verb /djuːp/

dupe

だます
Meaning
To deceive or trick someone into believing or doing something.
Example
He was duped into buying a fake watch.
彼は偽物の時計を買うようにだまされました。
C1 noun /ˌdiːpɔːrˈteɪʃən/

deportation

Meaning
The act of expelling a foreigner from a country.
Example
The deportation of hundreds of workers sparked international criticism.
C1 noun /dɪˈfjuːʒən/

diffusion

Meaning
the spreading of something more widely or the movement of particles from high to low concentration
Example
The diffusion of information on social media is rapid.
C1 verb dɪˈlɪnieɪt

delineate

詳細に描写する
Meaning
To describe or portray something precisely
Example
The artist delineated the scene in intricate detail.
アーティストはシーンを複雑な詳細で描写しました。
B1 noun /doʊˈneɪ.ʃən/

Donation

寄付; 貢献
Meaning
something that is given to a charity, especially a sum of money; the act of giving
Example
The generous donation helped the hospital purchase new medical equipment.
寛大な寄付が病院に新しい医療機器を購入するのに役立ちました。
B2 adjective /ˌdɪp.ləˈmæt.ɪk/

Diplomatic

外交的; 人間関係をうまく扱うことができる
Meaning
relating to diplomacy; tactful; skilled in managing relationships
Example
She gave a diplomatic answer to avoid offending anyone.
彼女は誰も怒らせないように外交的な答えをしました。
C1 adjective /dɪsˈdʒɔɪntɪd/

disjointed

ばらばら
Meaning
Lacking order, coherence, or connection; disconnected.
Example
The movie felt disjointed and hard to follow.
映画はばらばらに感じ、追いかけるのが難しかった。
A2 noun /deθ/

Death

死
Meaning
the end of life; the permanent cessation of vital functions
Example
The death of the great leader was mourned by the entire nation.
偉大な指導者の死は国全体で悲しまれました。
C1 noun /dɪn/

din

騒音
Meaning
a loud, unpleasant, and prolonged noise
Example
The din of traffic outside made it hard to concentrate.
外の交通の騒音が集中するのを困難にしていた。
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.
B2 noun ˌdiː.fɒr.ɪˈsteɪ.ʃən

deforestation

森林伐採
Meaning
The action of clearing a wide area of trees; the permanent destruction of forests in order to make the land available for other uses.
Example
Deforestation accelerates the loss of biodiversity.
森林伐採は生物多様性の喪失を加速させます。
B2 noun /ˈdiː.fekt/

Defect

欠陥
Meaning
a shortcoming, imperfection, or lack; a fault or flaw in something
Example
The manufacturing defect caused the product to fail after only one week.
製造上の欠陥により、製品はわずか1週間で故障しました。
C2 verb /ˌdɪspəˈzɛs/

dispossess

没収する
Meaning
to deprive someone of land, property, or other possessions
Example
The new law threatened to dispossess many farmers of their land.
新しい法律は多くの農民から土地を奪うと脅迫していました。
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。
B1 noun/adjective /ˌdɒkjʊˈmɛntri/

documentary

ドキュメンタリー映画
Meaning
A film or television program that provides a factual record or report.
Example
We watched a documentary about climate change.
私たちは気候変動についてのドキュメンタリー映画を見ました。
C2 noun /drɒs/

dross

無駄なもの
Meaning
worthless or unwanted material; rubbish or impurities
Example
Most of his early writings were considered dross.
彼の初期のほとんどの作品は無駄なものと見なされていた。
B1 noun /dɪˈpɑː.tʃər/

Departure

出発
Meaning
the action of leaving, especially to start a journey; a deviation from an established course
Example
The departure of the train was delayed by thirty minutes due to technical issues.
列車の出発は技術的な問題で30分遅れました。
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。
B1 adjective /ˈdefɪnət/

Definite

明確な; はっきりした; 特定の
Meaning
clearly stated or decided; not vague or uncertain; specific
Example
We need a definite answer by tomorrow.
私たちは明日までに明確な答えが必要です。
B1 verb /dɪˈleɪ/

delay

遅延
Meaning
to make something happen later than planned
Example
The flight was delayed due to bad weather.
悪天候のため、飛行機が遅れました。
A2 verb, noun /dɪsˈlaɪk/

dislike

嫌う
Meaning
to feel distaste or aversion for someone or something; a feeling of aversion
Example
I really dislike eating spicy food.
私は本当に辛い食べ物を食べるのが嫌いです。
C2 verb /dɪˈnjuːd/

denude

裸にする
Meaning
to strip something of its covering, possessions, or assets
Example
The forest was denuded of trees by illegal logging.
違法な伐採によって森は木々を裸にされた。
A2 adjective/adverb /ˈdeɪli/

daily

毎日の
Meaning
happening every day
Example
She reads the newspaper daily.
彼女は毎日新聞を読んでいます。
B2 noun /dɪsˈkʌmfərt/

discomfort

不快感
Meaning
A feeling of slight pain, unease, or awkwardness.
Example
She shifted in her chair due to discomfort in her back.
彼女は背中の不快感のために椅子で動きました。
C1 verb dɪˈsɜːn

discern

識別する
Meaning
To perceive or recognize something; to distinguish with difficulty by sight or with the other senses.
Example
He could barely discern the distant figure in the fog.
彼は霧の中で遠くの姿をほとんど識別できなかった。
C2 adjective /dɪsˈpɛptɪk/

dyspeptic

消化不良, イライラした
Meaning
Relating to indigestion or having a gloomy or irritable disposition.
Example
After the heavy meal, he felt dyspeptic and uncomfortable.
重い食事の後、彼は消化不良で不快に感じました。
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。
C2 adjective /ˌdɛbəˈnɛr/

debonair

魅力的
Meaning
confident, stylish, and charming, typically referring to a man
Example
He looked debonair in his tuxedo at the gala.
彼はガラでタキシードを着て魅力的に見えました。
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。
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 /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。
C1 noun /dɪˈsaɪ.pəl/

Disciple

弟子; 信者
Meaning
a follower and student of a teacher, leader, or philosopher; devoted follower
Example
The famous philosopher had many disciples who spread his teachings worldwide.
その有名な哲学者には多くの弟子がいて、彼の教えを世界中に広めました。
C2 noun /ˌdɪʃəˈbiːl/

dishabille

だらしない格好
Meaning
The state of being only partly or loosely dressed; casual or careless attire.
Example
She answered the door in a state of dishabille, wearing just a robe.
彼女はだらしない格好でドアに応答した、ローブだけを着て。
B2 noun /dɪˈsen.dənt/

Descendant

子孫
Meaning
a person who is descended from a particular ancestor; offspring of a later generation
Example
She discovered that she was a descendant of European royalty through genealogy research.
彼女は系譜研究を通じて、ヨーロッパの王族の子孫であることを発見しました。
B1 verb /dɪˈfɛnd/

defend

守る
Meaning
To protect someone or something from harm or attack.
Example
The lawyer worked hard to defend her client.
弁護士は彼女のクライアントを守るために一生懸命働きました。
A1 adjective /dɪr/

dear

親愛なる
Meaning
loved or cherished; sometimes used as a polite form of address
Example
She is very dear to her grandparents.
彼女は祖父母にとって非常に親愛なる存在です。
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。
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。
B1 verb /dɪsˈtrɪbjuːt/

distribute

配布する
Meaning
to give out or spread something among several people or places
Example
The teacher will distribute the test papers.
先生は試験の用紙を配布します。
C2 noun /ˈdiːɪst/

deist

デイスト
Meaning
a person who believes in the existence of a supreme being but rejects organized religion
Example
The philosopher identified himself as a deist.
その哲学者は自分をデイストとして認識した。
B2 adjective /ˈdɛlɪkət/

delicate

壊れやすい
Meaning
Easily broken or damaged; requiring careful handling.
Example
The vase is very delicate, so handle it with care.
この花瓶はとても壊れやすいので、注意して扱ってください。
C1 verb /dɪˈsɛkt/

dissect

Meaning
to cut apart an animal, plant, or other organism to study its internal parts; to analyze something in detail
Example
In biology class, students had to dissect a frog to learn about its anatomy.
B1 adjective /ˌdɪs.əˈpɔɪn.tɪd/

Disappointed

がっかり
Meaning
sad because something has not happened or is not as good as expected
Example
She was disappointed with her exam results.
彼女は試験の結果にがっかりしていた。