C1 noun /dɪˈfɪʃ.ən.si/

Deficiency

不足; 欠乏; 不足感

Meaning

a lack or shortage of something; inadequacy or insufficiency

Example

The doctor diagnosed a vitamin D deficiency in the patient's blood test.

医師は患者の血液検査でビタミンDの不足を診断しました。

C2 verb /dɪsˈɡɔːrdʒ/

disgorge

嘔吐, 排出

Meaning

to discharge or pour out; to vomit; to give up reluctantly

Example

The broken pipe disgorged water all over the floor.

壊れたパイプが床全体に水を吐き出しました。

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。

C2 noun /dɪˈpɑːzɪtər/

depositor

預金者

Meaning

a person who places money in a bank or financial institution

Example

The bank provides insurance to protect depositors’ funds.

銀行は預金者の資金を保護するために保険を提供しています。

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。

A2 noun dɪˈvaɪs

device

デバイス, 装置, 機器

Meaning

A thing made or adapted for a particular purpose, especially a piece of mechanical or electronic equipment.

Example

This device improves efficiency in data processing.

このデバイスはデータ処理の効率を改善します。

C2 adjective /daɪˈvɜːrtɪbəl/

divertible

転用可能な

Meaning

capable of being turned aside or redirected

Example

Funds from the budget are not legally divertible.

予算からの資金は合法的に転用できません。

B2 noun /dɪˈtɜːrdʒənt/

detergent

洗剤

Meaning

a substance used for cleaning, especially for washing clothes and dishes

Example

She bought a new brand of detergent for laundry.

彼女は洗濯のために新しいブランドの洗剤を買いました。

B2 adverb /drəˈmætɪkli/

dramatically

劇的に

Meaning

in a sudden, striking, or exaggerated way

Example

Sales increased dramatically after the campaign.

キャンペーン後、売上は劇的に増加しました。

B2 adjective /dɪˈfɪnɪtɪv/

definitive

決定的

Meaning

serving as a final or most authoritative form; conclusive and decisive

Example

The committee reached a definitive agreement on the policy.

委員会は政策に関する決定的な合意に達しました。

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。

A2 noun /ˈdjuː.ti/

Duty

義務

Meaning

something that one is expected or required to do; moral or legal obligation

Example

It is our duty as citizens to vote in elections.

市民として選挙で投票することは私たちの義務です。

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。

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！

C1 adjective /ˈdæʃ.ɪŋ/

Dashing

魅力的; スタイリッシュ; 自信に満ちた;

Meaning

stylish and confident; lively and energetic; attractive and charming

Example

He looked dashing in his new suit.

彼は新しいスーツで魅力的に見えました。

A2 adjective /dɪˈlɪʃəs/

delicious

幸せ

Meaning

having a very pleasant taste or smell

Example

The cake was so delicious that everyone asked for a second slice.

彼女は賞を受け取ったとき、喜びを隠すことができませんでした。

B1 verb /dɪˈpɛndɪŋ/

depending

依存する

Meaning

Being contingent on or influenced by something.

Example

The success of the plan is depending on the team's effort.

計画の成功はチームの努力に依存しています。

A1 noun /dæd/

dad

お父さん

Meaning

an informal term for father

Example

My dad taught me how to ride a bike.

私のお父さんは自転車の乗り方を教えてくれました。

B1 noun ˌdɪsədˈvæntɪdʒ

disadvantage

不利

Meaning

An unfavorable circumstance or condition that reduces the chances of success or effectiveness.

Example

Urdu's dominance placed Bengalis at a disadvantage.

ウルドゥー語の支配がベンガル語話者を不利な立場に追い込んだ。

B2 noun, verb /ˈdɪskɔːrs/

discourse

談話, 講義

Meaning

Written or spoken communication or debate.

Example

The professor gave a discourse on ancient philosophy.

教授は古代哲学についての講義を行った。

C2 verb /dɪˈfoʊlieɪt/

defoliate

葉を落とす

Meaning

to strip leaves from a tree, plant, or area, often using chemicals

Example

The farmers defoliated the fields before harvest.

農家は収穫前に畑の葉を取り除きました。

C2 verb /dɪsˈmɛmbər/

dismember

切断する

Meaning

to cut or tear the limbs from a body; to divide into separate parts

Example

The king ordered his enemies to be dismembered.

王は敵を切り刻むよう命じました。

C2 adjective /dɪˈkɔːrəs/

decourous

得体な

Meaning

characterized by propriety, good taste, and proper manners

Example

She maintained a decourous silence during the ceremony.

彼女は式典中に得体な沈黙を守った。

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.

B2 noun /dɪsˈmeɪ/

Dismay

失望; 驚き

Meaning

concern and distress caused by something unexpected; consternation or alarm

Example

To our dismay, the concert was cancelled due to severe weather conditions.

私たちの失望の中、コンサートは悪天候のためキャンセルされました。

B2 adjective /dɪsˈɡʌstɪd/

disgusted

嫌悪している

Meaning

feeling a strong sense of dislike or revulsion

Example

She was disgusted by the way he treated the animals.

彼女は彼が動物に接する方法に嫌悪感を抱いた。

C1 verb /dɔːnt/

daunt

脅す

Meaning

to make someone feel intimidated, discouraged, or less confident

Example

The steep climb did not daunt the experienced hikers.

急な登りは経験豊富なハイカーを怖がらせませんでした。

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。

B2 noun /dɪsˈɔːrdər/

disorder

障害

Meaning

A state of confusion or lack of order; also a medical or mental condition.

Example

The protest ended in disorder when the crowd became violent.

抗議は群衆が暴力的になったときに障害に終わった。

C1 noun /dɪˈskrep.ən.si/

discrepancy

不一致, 差異, 矛盾

Meaning

A lack of compatibility or similarity between two or more facts.

Example

The audit revealed a discrepancy between the reported earnings and actual income.

監査は報告された収入と実際の収入との間に不一致があることを明らかにしました。

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。

C2 noun /dɛnˈdrɒlədʒi/

dendrology

Meaning

the scientific study of trees and woody plants

Example

He is studying dendrology at the university.

C1 verb /dɪˈmoʊt/

demote

降格

Meaning

to reduce to a lower rank or position

Example

The manager decided to demote the employee for poor performance.

マネージャーはパフォーマンスが悪いため、従業員を降格させることに決めました。

B2 verb /dɪˈfɜːr/

defer

延期する

Meaning

To postpone or delay; to yield to someone else's judgment or opinion.

Example

The meeting was deferred until next week.

会議は来週まで延期されました。

B1 verb /dɪˈtɜːrmɪn/

determine

決定する

Meaning

to decide; to find out exactly

Example

We must determine the cause of the problem.

私たちは問題の原因を特定する必要があります。

C1 verb /dɪˈsɛm.ɪ.neɪt/

disseminate

普及する

Meaning

To spread or give out something, especially news, information, ideas, etc., to a lot of people.

Example

Social media helps to disseminate information quickly.

ソーシャルメディアは情報を迅速に普及するのに役立ちます。

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。

C1 adjective /dɪˈraɪsɪv/

derisive

軽蔑的な

Meaning

Expressing contempt or ridicule.

Example

She gave a derisive laugh at his attempt to sing.

彼女は彼の歌おうとする試みに対して軽蔑的な笑い声を上げた。

C1 noun /ˈdɛljuːdʒ/

deluge

洪水

Meaning

A severe flood; an overwhelming quantity of something.

Example

The town was hit by a deluge of rain in just a few hours.

その町は数時間で豪雨の洪水に襲われました。

B2 noun /ˈdel.ɪ.ɡət/

Delegate

代表

Meaning

a person chosen or elected to act for or represent others; representative

Example

Each country sent a delegate to participate in the international conference.

各国は国際会議に参加するために代表を派遣しました。

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 /dɪsˈmɪs/

dismiss

解雇する, 却下する

Meaning

to remove someone from a job or position; to decide something is not important

Example

The manager dismissed the employee for being late too often.

マネージャーは遅刻が多すぎるため、従業員を解雇しました。

C1 verb /ˈdɪs.ɪ.peɪt/

dissipate

徐々に消失する

Meaning

To disappear or cause to disappear gradually.

Example

The tension in the room slowly dissipated.

部屋の中の緊張感は徐々に消えていった。

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。

C2 adjective /ˌdɒktrɪˈnɛər/

doctrinaire

教条主義者

Meaning

stubbornly devoted to a theory or doctrine without regard to practical considerations

Example

His doctrinaire approach to politics alienated many supporters.

彼の教条主義的な政治アプローチは、多くの支持者を遠ざけた。

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。

B2 adjective /dɪˈstɪŋkt/

Distinct

独特の; ユニークな; 明確な; 認識できる

Meaning

separate and different; clear and recognizable; unique

Example

Each painting has its own distinct style and character.

各々の絵画には、それぞれ独自のスタイルと特徴があります。

B2 noun /ˈder.ɪŋ/

Daring

大胆; 危険を冒す意欲

Meaning

adventurous courage; willingness to take risks

Example

The mountain climber's daring impressed everyone at the base camp.

山登りの冒険心は、ベースキャンプの皆に感動を与えました。

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 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.

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 phrase ˌdɪp.ləˈmæt.ɪk rɛz.əˈluː.ʃən

diplomatic resolution

外交的解決

Meaning

A peaceful solution to conflicts through negotiation and diplomatic channels.

Example

A diplomatic resolution is necessary for peace.

平和には外交的解決が必要です。

A2 noun /dɪʃ/

Dish

皿

Meaning

a shallow, flat-bottomed container for cooking or serving food; a particular variety or preparation of food served as part of a meal

Example

Please put the rice on the dish before serving.

お米を皿に載せてから提供してください。

C1 noun ˌdɪs.æmˌbɪɡ.juˈeɪ.ʃən

disambiguation

曖昧さの解消

Meaning

The removal of ambiguity by making something clear and unambiguous.

Example

The AI system applies disambiguation to refine text understanding.

AIシステムはテキスト理解を精緻化するためにディスアンビギュエーションを適用します。

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 /droʊn/

Drone

オス蜂

Meaning

a male bee that does not work and whose only function is to mate with the queen

Example

The drone bees do not collect honey like worker bees.

ドローンの蜂は働き蜂のように蜂蜜を集めません。

C1 adjective /ˈdraʊ.zi/

Drowsy

眠い; 疲れた; 無気力な

Meaning

feeling sleepy and lethargic; half asleep; tired

Example

I felt drowsy after the heavy meal.

重い食事の後、眠気を感じました。

C1 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 verb /dɪˈstrækt/

distract

気を散らす

Meaning

to take someone's attention away from what they are doing or focusing on

Example

The loud noise distracted her during the exam.

大きな音が試験中に彼女をディストラクトした。

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 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。

C1 verb /dɪsˈfɪɡjər/

disfigure

変形させる

Meaning

to spoil or damage the appearance of something

Example

The fire disfigured the old building.

火事は古い建物を変形させた。

C1 noun /dɪsˈlɛksiə/

dyslexia

ディスレクシア

Meaning

A learning disorder characterized by difficulty reading due to problems identifying speech sounds and decoding words.

Example

The teacher used special methods to help the student with dyslexia.

先生はディスレクシアの学生を助けるために特別な方法を使いました。

C1 noun /ˈdɪm.pəl/

Dimple

えくぼ

Meaning

a small depression in the flesh, either one that exists permanently or one that forms when smiling

Example

Her charming dimples appeared whenever she smiled at the children.

彼女の魅力的なえくぼは、子供たちに微笑むたびに現れました。

C1 adjective /dɪˈskriːt/

discrete

離散的

Meaning

individually separate and distinct

Example

The course is divided into three discrete modules.

コースは3つの離散的なモジュールに分けられています。

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。

B2 noun /dɒk/

dock

ドック

Meaning

a structure where ships are loaded, unloaded, or repaired

Example

The ship stayed at the dock for two days.

船はドックに2日間停泊していました。

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。

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。

C1 noun /dɪˈmiːnər/

demeanor

態度

Meaning

a person's outward behavior or appearance

Example

Her calm demeanor impressed everyone at the meeting.

彼女の冷静な態度は会議で皆に感銘を与えました。

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。

A2 noun dɪˈskrɪpʃən

description

説明

Meaning

A spoken or written account of a person, object, or event.

Example

His description was vivid.

彼の説明は生き生きとしていた。

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。

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。

A2 noun /ˈdeɪ.tə/

Data

データ

Meaning

facts and statistics collected together for reference or analysis; information in digital form

Example

Scientists analyzed the data from thousands of experiments to reach their conclusion.

科学者たちは、何千もの実験から得られたデータを分析して、結論に達しました。

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。

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 noun ˌdiː.sen.trə.laɪˈzeɪ.ʃən

decentralization

分権

Meaning

The transfer of authority from central to local government.

Example

Decentralization promotes regional autonomy.

分権は地域の自立を促進します。

C1 adjective ˈdɪs.pər.ət

disparate

異なる

Meaning

containing elements very different from one another.

Example

Their opinions were disparate, leading to debates.

彼らの意見は異なり、討論を引き起こしました。

A1 adjective /ˈdɪf.ər.ənt/

different

異なる

Meaning

Not the same as another; distinct or unlike.

Example

Her opinion was completely different from mine.

彼女の意見は私のものとは完全に異なっていました。

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。

B1 verb/noun /ˈdiːkriːs/ (noun), /dɪˈkriːs/ (verb)

decrease

Meaning

To become or make something smaller or fewer in number, amount, or degree.

Example

The population of the town has decreased over the years.

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。

C2 verb /ˈdɒɡmətaɪz/

dogmatize

ドグマ化する

Meaning

To state opinions or beliefs as if they were absolute truths.

Example

The professor tended to dogmatize on political issues.

その教授は政治的な問題でドグマタイズする傾向があった。

C2 verb /ˈdɛsɪkreɪt/

desecrate

冒涜する

Meaning

to treat a sacred place or object with disrespect or violation

Example

The vandals desecrated the ancient temple walls with graffiti.

ヴァンダルたちは古代の寺院の壁をグラフィティで冒涜しました。

C1 adjective /dɪsˈɪntrəstɪd/

disinterested

無関心

Meaning

not influenced by personal interest; impartial or neutral

Example

The judge remained disinterested in the case.

裁判官はその事件に無関心のままでした。

B2 verb /dʌmp/

dump

何かを無駄に捨てるまたは放置する

Meaning

to drop or dispose of something carelessly; to end a relationship suddenly

Example

He dumped all the trash into the bin.

彼はゴミをすべてゴミ箱に捨てた。

C1 noun dɪˈfleɪʃən

deflation

デフレーション

Meaning

Reduction of the general level of prices in an economy.

Example

Deflation often leads to decreased consumer spending.

デフレーションはしばしば消費者の支出を減少させる。

C2 noun /dɪˈstɪlər/

distiller

蒸留業者

Meaning

A person or company that makes alcoholic drinks or purified liquids by distillation.

Example

The distiller introduced a new brand of whiskey last year.

蒸留業者は昨年、新しいウイスキーブランドを紹介しました。

B2 noun /ˈdeɪ.tə briːtʃ/

data breach

データ漏洩

Meaning

Unauthorized disclosure of sensitive information through security violation

Example

A data breach exposed millions of users' passwords.

データ漏洩により何百万人ものユーザーのパスワードが公開されました。

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。

C1 noun /ˈdɪɡnɪˌtɛri/

dignitary

重要人物

Meaning

a person considered to be important because of high rank or office

Example

Several foreign dignitaries attended the state banquet.

数人の外国の重要人物が国の晩餐会に出席しました。

B2 noun /ˈdɔː.weɪ/

doorway

ドアの入口

Meaning

the space where a door opens into a room or building

Example

She stood in the doorway waiting for him to arrive.

彼女はドアの入口に立って、彼が来るのを待っていました。

C1 noun /daɪˈvɜː.dʒəns/

divergence

分岐

Meaning

The process or state of diverging; a difference or deviation between two or more things.

Example

The divergence in their opinions led to a heated debate.

彼らの意見の相違は激しい議論を引き起こしました。

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。

B1 adverb /ˈdef.ɪ.nət.li/

Definitely

間違いなく

Meaning

without doubt; certainly; clearly

Example

I will definitely attend the meeting tomorrow.

私は明日のミーティングに必ず出席します。

B2 noun /ˈdreɪ.nɪdʒ/

drainage

排水

Meaning

the system or process by which water or other liquids are drained away

Example

Poor drainage caused flooding in the neighborhood.

悪い排水システムが近所での洪水を引き起こしました。

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。

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 adjective /dæmp/

damp

湿った

Meaning

slightly wet, often in an unpleasant way

Example

The room felt cold and damp after the rain.

雨の後、部屋は冷たくて湿っていると感じました。

B2 verb /dɪˈpraɪv/

deprive

Meaning

to take something away from someone, or prevent them from having it

Example

The new law may deprive people of their rights.

C2 verb /diːˈlɪmɪt/

delimit

境界を設定する

Meaning

to fix the boundaries or limits of something

Example

The treaty was signed to delimit the borders of the two countries.

その条約は二国の境界を定めるために署名されました。

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。

C1 noun /dɪˈkɔː.rəm/

Decorum

礼儀; 品位; 威厳

Meaning

behavior in keeping with good taste and propriety; dignified and appropriate conduct

Example

The diplomat maintained perfect decorum throughout the heated negotiations.

その外交官は熱心な交渉の中で完璧な礼儀を保っていました。

C1 verb /dɪsˈɡrʌntl/

disgruntle

不満にさせる

Meaning

to make someone dissatisfied or discontented

Example

The unfair treatment disgruntled the workers.

不公平な扱いが労働者を不満にさせた。

A2 noun /ˈdɑrk.nəs/

Darkness

暗闇; 無知;

Meaning

the partial or total absence of light; wickedness or evil; ignorance or lack of knowledge

Example

The power outage plunged the entire city into darkness.

停電で町全体が暗闇に包まれた。

C1 noun dɪˈpliː.ʃən

depletion

枯渇

Meaning

The gradual reduction or exhaustion of a resource or substance.

Example

Overuse of groundwater leads to depletion of water resources.

地下水の過剰使用は水資源の枯渇を引き起こす。

C2 noun /dɪˈtrækʃən/

detraction

非難

Meaning

The act of belittling or taking away from the value of something.

Example

Her constant detraction of others made her unpopular.

他人に対する彼女の絶え間ない非難は、彼女を不人気にした。

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。

B2 adjective /dɪˈzæs.trəs/

Disastrous

壊滅的な

Meaning

extremely bad or unsuccessful; causing great damage

Example

The hurricane had disastrous effects on the city.

ハリケーンは街に壊滅的な影響を与えました。

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 adjective /ˈdɔːnt.ləs/

dauntless

無敵の、勇敢な、決然とした

Meaning

Showing fearlessness and determination; brave and resolute.

Example

The dauntless soldier fought against all odds.

無敵の兵士はすべての困難に立ち向かった。

B2 noun /ˌdɪsəˈpruːvəl/

disapproval

不賛成

Meaning

The expression of an unfavorable opinion or judgment

Example

Her parents showed clear disapproval of her decision to drop out of college.

彼女の両親は、大学を中退するという彼女の決定に明確な不賛成を示した。

C2 noun /ˈdoʊneɪtər/

donator

寄付者

Meaning

A person who gives something, especially money or goods, as a donation.

Example

The donator wished to remain anonymous after contributing a large sum.

寄付者は大きな金額を寄付した後、匿名でいることを希望しました。

B2 noun /ˈdjuːəʊ/

duo

デュオ

Meaning

a pair of people or things, especially in music or entertainment

Example

The musical duo performed their latest hit at the concert.

その音楽デュオはコンサートで最新のヒットを演奏しました。

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.

A2 noun /ˈdʌst.bɪn/

Dustbin

ゴミ箱

Meaning

a container for holding waste or garbage before disposal

Example

Please throw the paper into the dustbin after use.

使用後は紙をゴミ箱に捨ててください。

C2 adjective /ˈdɪsənənt/

dissonant

不協和音

Meaning

Harsh and lacking harmony; conflicting.

Example

The orchestra produced a dissonant sound during rehearsal.

オーケストラはリハーサル中に不協和音を発生させました。

C2 noun /daɪˈɡrɛʃən/

digression

逸脱

Meaning

A temporary departure from the main subject in speech or writing.

Example

Her story was full of interesting digressions.

彼女の話は面白い逸脱で満ちていました。

B2 verb dɪˈtɪəriəreɪt

deteriorate

悪化する

Meaning

To become progressively worse in quality, condition, or performance; to decline.

Example

Unplanned growth can deteriorate living conditions.

計画外の成長は生活環境を悪化させる可能性があります。

B2 adjective /dɪsˈɡreɪsfəl/

Disgraceful

恥ずべき; 不名誉な; 非難に値する

Meaning

shameful; bringing dishonor; worthy of condemnation

Example

His disgraceful behavior shocked everyone at the party.

彼の恥ずべき行動はパーティーでみんなを驚かせました。