dulcet
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C2 adjective /ˈdʌlsɪt/

dulcet

甘美
Meaning
sweet and soothing (often used ironically)
Example
She was enchanted by his dulcet voice.
彼女は彼の甘美な声に魅了されていた。
C2 noun/adjective /ˈdɪstæf/

distaff

女性に関連、母系
Meaning
Relating to women or the maternal side of a family; also a tool for spinning thread.
Example
She came from the distaff side of a noble family.
彼女は名家の母系から来た。
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。
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。
C2 verb /dɪˈdʒɛkt/

deject

落胆させる
Meaning
to make someone feel sad, depressed, or dispirited
Example
The news of his failure seemed to deject him deeply.
彼の失敗のニュースは彼を深く落胆させたようだ。
B2 adjective /dɪˌveləpˈmentl/

developmental

発展的
Meaning
relating to the process of growth or progress
Example
Early childhood is a crucial developmental stage for learning.
幼児期は学習にとって重要な発展的段階です。
C2 verb /ˈdɛsɪkeɪt/

desiccate

乾燥させる
Meaning
to dry up completely or remove the moisture from something
Example
The hot sun can quickly desiccate plants in the desert.
暑い太陽は砂漠の植物をすぐに乾燥させることができます。
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。
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。
A2 verb /dɪsˈkʌvər/

discover

発見する
Meaning
to find something for the first time
Example
Scientists discovered a new planet last year.
科学者たちは昨年新しい惑星を発見しました。
C2 verb /dɪˈbɑːrk/

debark

下船する
Meaning
to disembark or get off a ship, aircraft, or vehicle
Example
The passengers debarked as soon as the ship docked.
乗客は船がドックに着いたときに下船しました。
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 verb /dɪˈpliːt/

deplete

使い果たす
Meaning
to reduce the quantity or supply of something
Example
The long war has depleted the country's resources.
長引く戦争で国の資源は枯渇した。
B1 adjective dəˈmes.tɪk

domestic

国内の
Meaning
Existing or occurring inside a particular country; not foreign or international.
Example
Domestic investments stabilize the economy.
国内投資は経済を安定させる。
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 /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。
B1 noun /dɪˈtɛktɪv/

detective

探偵
Meaning
a person whose job is to investigate and solve crimes
Example
The detective solved the mystery in just two days.
探偵はわずか2日で謎を解決しました。
C2 verb /dɪˈnɒmɪˌneɪt/

denominate

命名する
Meaning
to give a name or designation to something
Example
The currency was denominated in dollars.
その通貨はドルで denominated されました。
A1 noun /ˈdɔː.tər/

Daughter

娘
Meaning
a female offspring; a young woman in relation to her parents
Example
Their daughter graduated from medical school with top honors.
彼らの娘は医学校を優秀な成績で卒業しました。
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。
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.
C1 verb /dʌb/

dub

吹き替え
Meaning
to give a name or label to something; to add a soundtrack to a film or recording
Example
The movie was dubbed into several languages for international release.
その映画は国際公開のためにいくつかの言語に吹き替えられました。
C1 noun ˌdɛɡrəˈdeɪʃən

degradation

劣化
Meaning
The condition or process of degrading or being degraded.
Example
Soil degradation due to overuse is a growing issue.
過剰な使用による土壌の劣化は、増大する問題です。
B2 noun /ˌdek.ləˈreɪ.ʃən/

Declaration

宣言; 発表; 告知
Meaning
a formal or explicit statement or announcement; an official proclamation
Example
The president's declaration of independence marked a historic moment for the nation.
大統領の独立宣言は、国にとって歴史的な瞬間を意味していました。
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。
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。
C1 noun ˌdɪdʒɪˈnɛəreɪʃən

degeneration

退化
Meaning
The process of decline or deterioration in structure or function.
Example
The degeneration of brain cells leads to cognitive decline.
脳細胞の退化は認知機能の低下を引き起こします。
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。
A2 noun /dɪər/

Deer

鹿
Meaning
a graceful wild animal with antlers, especially the male
Example
We saw a beautiful deer grazing in the meadow.
私たちは草原で美しい鹿が草を食べているのを見ました。
B2 verb /dɪˈsɛnd/

descend

Meaning
To move or fall downward; to come or go down from a higher place.
Example
The hikers descended the steep mountain path.
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。
B2 verb /ˈdɛdɪkeɪt/

dedicate

捧げる
Meaning
to devote time, effort, or oneself to a particular purpose or person
Example
She dedicated her life to helping the poor.
彼女は貧しい人々を助けるために自分の人生を捧げました。
B1 adverb /ˈdeɪndʒərəsli/

Dangerously

危険に
Meaning
in a way that could cause harm or injury; riskily
Example
He was driving dangerously fast on the highway.
彼は高速道路で危険に速く運転していた。
B2 noun /dɪˈnaɪ.əl/

Denial

否認
Meaning
the action of declaring something to be untrue; refusal to acknowledge something
Example
His denial of involvement in the scandal was met with skepticism.
スキャンダルへの関与を否認した彼の姿勢は、疑念を持って受け止められました。
B2 noun /ˌdel.ɪˈɡeɪ.ʃən/

delegation

代表団
Meaning
A group of people chosen to represent others in negotiations or discussions.
Example
The delegation presented their country's agenda.
代表団は自国の議題を提示しました。
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 noun /ˌdiː.mɑːˈkeɪ.ʃən/

Demarcation

境界設定
Meaning
the action of fixing the boundary or limits of something; separation or division
Example
The demarcation between public and private land was clearly marked.
公共の土地と私有地の境界設定は明確に示されていた。
A2 noun /drʌm/

Drum

ドラム
Meaning
a percussion instrument typically made of a hollow cylinder with a membrane stretched over one or both ends
Example
The drummer kept perfect time on his drum kit.
ドラマーは自分のドラムキットで完璧なリズムを刻んだ。
A2 adjective /ˈdeɪndʒərəs/

dangerous

危険
Meaning
likely to cause harm or injury; unsafe
Example
Driving fast on icy roads is dangerous.
氷の道路で速く運転するのは危険です。
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。
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。
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。
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 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.
C2 noun /dɪˈkæmɪtər/

decameter

デカメートル
Meaning
A metric unit of length equal to ten meters.
Example
The field was measured in decameters for accuracy.
そのフィールドは正確さのためにデカメートルで測定されました。
C1 noun /ˈdeɪ.ə.ti/

deity

神
Meaning
a god or goddess
Example
The temple is dedicated to a Hindu deity.
その寺院はヒンドゥー教の神に捧げられています。
B2 noun /dɪˈpləʊməsi/

diplomacy

Meaning
The profession, activity, or skill of managing international relations or handling affairs tactfully.
Example
Effective diplomacy helped avoid the conflict.
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 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。
A1 noun /dɪˈsɛmbər/

december

12月
Meaning
the twelfth and last month of the year in the Gregorian calendar
Example
December is usually cold in many countries.
12月は多くの国で寒いです。
C2 verb /drɔːl/

drawl

だらだらと話す
Meaning
to speak in a slow, lazy way with prolonged vowel sounds
Example
He tends to drawl when he is tired.
彼は疲れているときに、だらだらと話す傾向があります。
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。
B2 verb /draʊn/

drown

溺れる
Meaning
to die or cause to die by being submerged in and inhaling water
Example
He nearly drowned while swimming in the river.
彼は川で泳いでいるときにほぼ溺れそうになった。
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 /ˌdɪsɪnklɪˈneɪʃən/

disinclination

不本意
Meaning
a lack of willingness or desire to do something
Example
She showed a clear disinclination to join the meeting.
彼女は会議に参加する明確な不本意を示した。
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。
C2 verb /dɔːb/

daub

塗る
Meaning
to spread a thick or sticky substance carelessly on a surface
Example
The children daubed paint all over the walls.
子供たちは壁にペンキを塗り広げました。
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。
C1 verb /ˈdæŋɡəl/

dangle

ぶら下がる
Meaning
to hang loosely or swing freely
Example
The keys dangled from his belt.
鍵がベルトからぶら下がっていました。
C2 verb /ˈdɒdə/

dodder

震えながら歩く
Meaning
To move in a weak and unsteady way, especially due to old age.
Example
The old man doddered across the street with a cane.
老人は杖をついて震えながら通りを歩いていました。
C1 noun /dɪˌlɪb.əˈreɪ.ʃənz/

deliberations

審議
Meaning
Careful consideration and discussion before making decisions.
Example
Deliberations on sustainability continued for hours.
持続可能性についての審議は何時間も続きました。
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。
A2 noun /dɪˈsɪʒ.ən/

Decision

決定
Meaning
a conclusion or resolution reached after consideration; the action of deciding
Example
Making the right decision required careful analysis of all available options.
正しい決定を下すには、利用可能なすべての選択肢を慎重に分析する必要がありました。
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。
B1 noun dɛt

debt

借金
Meaning
A sum of money that is owed or due.
Example
High levels of debt can lead to a financial crisis.
高い負債レベルは、金融危機を引き起こす可能性があります。
A2 noun /ˈdeɪn.dʒər/

danger

危険
Meaning
The possibility of harm, injury, or loss.
Example
The hikers were in great danger during the storm.
登山者は嵐の中で大きな危険にさらされていました。
A1 noun /ˈdænsɪŋ/

dancing

Meaning
the activity of moving the body rhythmically to music
Example
They spent the evening dancing at the party.
A2 noun /ˈdaʊnˌtaʊn/

downtown

ダウンタウン
Meaning
the central part of a city
Example
They spent the afternoon shopping downtown.
彼らは午後、市の中心部で買い物をしました。
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。
C1 noun dɪˈtætʃ.mənt

detachment

切り離し
Meaning
The state of being objective or aloof; not being emotionally involved.
Example
Buddhist philosophy encourages detachment from material desires.
仏教哲学は物質的欲望からの分離を奨励します。
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。
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 adjective /dræb/

drab

地味な
Meaning
Dull, lacking brightness or interest; monotonous.
Example
The room looked drab with its gray walls and dim lighting.
灰色の壁と薄暗い照明でその部屋は地味に見えた。
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。
C1 verb /dɪˈɡreɪd/

degrade

Meaning
To lower in dignity, quality, or value; to treat with disrespect or to deteriorate.
Example
Harsh words can degrade a person's confidence.
C2 adjective /dɪˈstɛnsəbl̩/

distensible

伸縮可能な
Meaning
Capable of being stretched or expanded.
Example
The stomach is a distensible organ that can expand after eating.
胃は食後に膨らむことができる伸縮可能な器官です。
C2 noun /dɪˈmʌrɪdʒ/

demurrage

デマレッジ
Meaning
a charge payable to the owner of a ship or vehicle for not loading or unloading on time
Example
The company had to pay demurrage for delaying the unloading of goods.
会社は荷物の荷降ろしの遅れでデマレッジを支払わなければならなかった。
C1 verb /ˈdɛsɪmeɪt/

decimate

壊滅させる
Meaning
To destroy or kill a large proportion of something.
Example
The wildfire decimated the forest.
森林火災が森を壊滅させました。
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 noun /ˈdʌklɪŋ/

duckling

Meaning
a young duck
Example
The mother duck led her ducklings to the pond.
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。
B2 noun /ˈdɔːr.mæt/

Door-mat

ドアマット
Meaning
a mat placed in front of a door for wiping feet
Example
Please wipe your feet on the door-mat before entering the house.
家に入る前にドアマットで足を拭いてください。
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。
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。
B2 adjective /dɪˈzɜːrtɪd/

deserted

人がいない
Meaning
Empty of people; abandoned.
Example
The village looked completely deserted after the storm.
嵐の後、その村は完全に人がいないように見えた。
C2 noun /ˈdændi/

dandy

外見と服装に過剰に気を使う男性
Meaning
a man who gives too much attention to his appearance and clothes
Example
The young dandy spent hours grooming himself before the party.
若いダンディはパーティーの前に何時間も自分を整えるのに費やした。
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 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。
B2 noun, verb /dɪˈfɔːlt/

default

デフォルト
Meaning
failure to fulfill an obligation, especially to repay a loan
Example
The company defaulted on its loan payments.
会社はローンの支払いでデフォルトしました。
C1 adjective /ˌdɪktəˈtɔːriəl/

dictatorial

独裁的
Meaning
Having or showing a tendency to tell people what to do in an autocratic way.
Example
His dictatorial style made him unpopular among colleagues.
彼の独裁的なスタイルは、同僚たちの間で不人気だった。
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 verb dɪˈsaɪ.fɚ

decipher

解読する, 暗号を解く, 翻訳する
Meaning
To convert something written in code into normal language; to succeed in understanding the meaning of something.
Example
It took hours to decipher the ancient script.
古代の文字を解読するのに何時間もかかりました。
B2 verb dɪˈspætʃt

dispatched

派遣された
Meaning
To send off to a destination or for a purpose.
Example
A team was dispatched quickly.
チームは迅速に派遣されました。
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 noun /ˌdɛm.əˈɡræf.ɪks/

Demographics

人口統計学
Meaning
Statistical data relating to the population and particular groups within it.
Example
Demographics help in targeted advertising.
デモグラフィックスはターゲット広告に役立ちます。
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。
B2 noun /duːm/

doom

運命
Meaning
A terrible fate, destruction, or unavoidable bad outcome.
Example
The ancient prophecy foretold the city’s doom.
古代の予言は都市の運命を予見していた。
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。
C2 verb /dɪsˈbɜːrs/

disburse

分配する
Meaning
to pay out money, especially from a fund
Example
The organization will disburse the funds to the affected families.
その団体は影響を受けた家族に資金を分配します。
A2 verb /draɪv/

drive

運転
Meaning
to control and move a vehicle; to force someone to move
Example
I will drive to work tomorrow morning.
明日朝、仕事に車で行きます。
C2 noun /draɪd ˈfɛnjʊˌɡriːk livz/

Dried Fenugreek Leaves

乾燥フェヌグリークの葉
Meaning
dehydrated leaves of the fenugreek plant used as a herb in cooking
Example
Add dried fenugreek leaves to the curry for extra flavor.
カレーに乾燥フェヌグリークの葉を加えて、さらに風味を加えます。
B2 noun/verb /dɪˈvɔːrs/

divorce

離婚
Meaning
the legal ending of a marriage; to officially end a marriage
Example
After years of conflict, they decided to get a divorce.
数年の対立の後、彼らは離婚することを決めました。
C2 verb /diːˈmoʊbəlaɪz/

demobilize

解散する
Meaning
To release from military service or to disband troops.
Example
The government decided to demobilize the army after the war.
政府は戦争後に軍隊を解散することを決定しました。
C2 noun /ˈdʌlərd/

dullard

愚か者
Meaning
a slow or stupid person
Example
He was considered a dullard by his classmates.
彼はクラスメートによって愚か者だと考えられていた。
C2 noun /ˈdɛskænt/

descant

追加メロディー
Meaning
An additional melody or counterpoint sung or played above the main melody.
Example
The choir added a beautiful descant to the hymn.
合唱団は賛美歌に美しい追加メロディーを加えました。
B1 noun /dɪˈfens/

Defence

防御; 保護
Meaning
the action of defending from or resisting attack; protection or support
Example
The country strengthened its defence system against potential threats.
その国は潜在的な脅威に対抗するため、防御システムを強化しました。
C2 adjective /droʊl/

droll

ユニーク
Meaning
curious or unusual in a way that provokes dry amusement
Example
He had a droll sense of humor that made everyone laugh.
彼はみんなを笑わせるユニークなユーモアのセンスを持っていた。
B2 noun ˌdedɪˈkeɪʃn

dedication

献身
Meaning
The quality of being dedicated or committed to a task or purpose; devotion.
Example
His dedication laid the foundation of Indian science.
彼の献身はインディアの科学の基盤を築いた。
C1 noun /ˈdɪsənˌtɛri/

dysentery

腸の病気（血液と粘液を伴う下痢）
Meaning
An infection of the intestines resulting in severe diarrhea with blood and mucus.
Example
Many soldiers suffered from dysentery during the war.
多くの兵士たちは戦争中にディスエントリーに苦しんだ。
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。
B2 noun /dɪˈpreʃ.ən/

Depression

うつ病
Meaning
a mental health condition characterized by persistent sadness; a severe economic downturn
Example
The therapist helped her cope with depression through cognitive behavioral therapy.
セラピストは認知行動療法を通じて彼女がうつ病に対処する手助けをしました。
C1 noun ˈdɪskɔrd

discord

不和
Meaning
Disagreement or conflict between people or ideas.
Example
Discord among people disrupts societal stability.
人々の間の不和は社会の安定を乱す。
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 adjective /dɪˈskrɛpənt/

discrepant

不一致の
Meaning
showing a difference or inconsistency
Example
The witnesses gave discrepant accounts of the incident.
目撃者たちは事件について食い違った証言をしました。
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。
A1 verb /duː/

do

する
Meaning
to perform an action; to carry out
Example
I do my homework every evening.
私は毎晩宿題をします。
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。
C2 adjective /ˈdɪlətɔːri/

dilatory

遅延の
Meaning
Tending to cause delay; slow to act.
Example
The committee was criticized for its dilatory response to the crisis.
委員会は危機に対するその遅延反応で批判されました。
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。
B2 noun ˈdɒmɪnəns

dominance

支配
Meaning
Power and influence over others; control or command.
Example
The dominance of Urdu was evident.
ウルドゥ語の支配は明らかだった。
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。