C1 noun /ˈdɔːrˌkiːpər/

doorkeeper

門番

Meaning

A person whose job is to guard or manage the entrance of a building or room.

Example

The doorkeeper checked everyone’s passes before they entered the hall.

ドアキーパーは皆がホールに入る前に通行証を確認した。

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.

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 /dɪˈpɔːrtmənt/

deportment

行儀

Meaning

A person's behavior or manners, especially in a formal situation.

Example

Her deportment during the ceremony impressed everyone.

儀式中の彼女の行儀は皆を感動させた。

C1 verb /ˌdiːˈbʌŋk/

debunk

虚偽を暴露する、神話を打破する

Meaning

Expose the falseness or hollowness of (a myth, idea, or belief).

Example

Scientists debunked the myth that vaccines cause autism.

科学者たちは、ワクチンが自閉症を引き起こすという神話を打破した。

C2 noun /dɪsˈjuːnjən/

disunion

分裂

Meaning

the state of being separated or not united

Example

Civil wars often result from national disunion.

内戦はしばしば国家の分裂から起こる。

B1 noun /ˈdrɛsɪŋ/

dressing

ドレッシング / 調味料の混合物

Meaning

a sauce for salads; or material used to cover a wound

Example

She prepared a delicious salad with Italian dressing.

彼女はイタリアンドレッシングで美味しいサラダを作った。

B2 noun /dɪˈsɛnt/

descent

降下 / 祖先

Meaning

the action of moving downward, falling, or dropping; ancestry or origin

Example

The climbers began their descent from the mountain peak.

登山者は山頂から降下を始めました。

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。

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 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。

B1 noun /ˈdaɪ.mənd/

Diamond

ダイヤモンド

Meaning

a precious stone that is extremely hard and brilliant when cut

Example

She wore a diamond ring on her finger.

彼女は指にはダイヤモンドの指輪を着けていた。

C2 verb /drəˈɡuːn/

dragoon

強制する

Meaning

to force someone to do something through coercion or intimidation

Example

The manager tried to dragoon the team into working overtime.

マネージャーはチームに残業させようとしました。

C2 adjective /dɪˈsɛnʃənt/

dissentient

反対意見を持つ人

Meaning

Expressing or holding opinions that are opposed to the majority or official view.

Example

Only a few dissentient voices were heard during the debate.

討論中に反対意見を持つ少数の声だけが聞こえました。

C2 verb /ˌdɪsɪnˈfræntʃaɪz/

disenfranchise

権利を奪う

Meaning

To deprive someone of the right to vote or other rights.

Example

The new law could disenfranchise thousands of voters.

新しい法律は何千人もの有権者を投票権から外す可能性があります。

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。

C1 noun /dɪˈten.ʃən/

Detention

停学; 拘留

Meaning

the action of detaining someone or being detained in official custody

Example

The student received detention for repeatedly disrupting the class.

生徒は繰り返しクラスを乱したため、停学を受けました。

B2 verb /dɪˈmɒlɪʃ/

demolish

取り壊す

Meaning

to destroy completely, especially a building or structure

Example

The city decided to demolish the old stadium to build a new one.

その都市は新しいものを作るために古いスタジアムを取り壊すことに決めました。

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。

B2 verb /dɪˈpɪkt/

depict

Meaning

to represent or show something in a picture, story, or other art form

Example

The painting depicts a beautiful sunset over the sea.

C2 verb /diːˈpɒpjʊˌleɪt/

depopulate

人口減少

Meaning

To reduce the number of people living in a place.

Example

The war threatened to depopulate the once-thriving town.

戦争はかつて繁栄していた町を人口減少させる脅威を与えた。

B2 noun /dɪsˈpoʊzl/

disposal

廃棄

Meaning

the action or process of getting rid of something

Example

The disposal of waste is crucial for maintaining a clean environment.

廃棄物の処理は清潔な環境を維持するために重要です。

C1 noun /dɪˈkriː/

Decree

法令

Meaning

an official order issued by a legal authority; a judicial decision or edict

Example

The king issued a decree that all citizens must pay additional taxes.

王はすべての市民に追加の税金を支払うように命じる法令を出しました。

B2 noun ˈdɪdʒɪtəl ˈfɔːrmæt

Digital Format

デジタルフォーマット

Meaning

A format in which information is stored as electronic data.

Example

A digital format family tree can be shared online.

デジタルフォーマットの家系図はオンラインで共有できます。

B2 verb /ˌdɪsɪnˈfɛkt/

disinfect

消毒する

Meaning

to clean something thoroughly to destroy bacteria or viruses

Example

The nurse disinfected the wound before applying a bandage.

看護師は包帯を巻く前に傷を消毒しました。

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 adjective /dɪˈspɜːrst/

dispersed

散らばった

Meaning

Scattered or spread across a wide area.

Example

The dispersed population made it difficult to provide public services.

散らばった人口は公共サービスの提供を困難にしました。

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 ˈdɛf.ər.əns

deference

敬意

Meaning

Humble submission and respect.

Example

He showed deference to his elderly mentor.

彼は年上のメンターに敬意を示しました。

C1 adjective /dɪˈvaʊt/

devout

献身的

Meaning

Deeply religious or sincere.

Example

He is a devout believer who prays every day.

彼は毎日祈る献身的な信者です。

B2 adverb /ˈdʌbli/

doubly

二重に

Meaning

in a twofold manner; to twice the degree

Example

She felt doubly fortunate after winning the prize and getting a promotion.

彼女は賞を受賞し、昇進した後、二重に幸運だと感じました。

C2 adjective /ˈdɛprɪkətɔːri/

deprecatory

軽蔑的な

Meaning

expressing disapproval or belittling

Example

He gave a deprecatory remark about their performance.

彼は彼らのパフォーマンスについて軽蔑的なコメントをしました。

B2 verb /dwel/

dwell

住む

Meaning

to live in a place; to think about something for a long time

Example

They dwell in a small cottage by the lake.

彼らは湖の近くの小さな家に住んでいます。

C2 noun /ˌdaɪvəˈɡeɪʃən/

divagation

脱線

Meaning

digression; wandering from a path or subject

Example

His lecture was full of divagation, making it hard to follow the main point.

彼の講義は脱線だらけで、主なポイントを追うのが難しかった。

C1 adjective /dɪˈmɪnjətɪv/

diminutive

非常に小さい

Meaning

extremely or unusually small

Example

Despite his diminutive size, he was a powerful leader.

その非常に小さい体格にもかかわらず、彼は強力なリーダーだった。

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 verb /dɪˈtrækt/

detract

Meaning

To reduce or take away the worth or value of something.

Example

His rude behavior will detract from his good reputation.

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 adjective /ˌdɪsəˈbiːdiənt/

Disobedient

不従順な

Meaning

refusing to obey rules or authority; rebellious

Example

The disobedient child refused to follow the rules.

その不従順な子供はルールに従うことを拒否しました。

C2 prefix /dɪs-/

dys-

異常、悪い、困難、または欠陥を意味する接頭辞

Meaning

A prefix meaning abnormal, bad, difficult, or impaired.

Example

Words like 'dysfunction' and 'dyslexia' use the prefix dys- to indicate difficulty or impairment.

'ディスファンクション'や'ディスレクシア'のような言葉は、困難や障害を示すためにディス-という接頭辞を使用します。

B2 adjective /ˈdaʊt.fəl/

Doubtful

疑わしい; 不確かな; 何かに対して不確かに感じる

Meaning

uncertain; questionable; feeling uncertain about something

Example

I am doubtful about the success of this project.

私はこのプロジェクトの成功について疑問を持っています。

A2 verb /ˌdɪsəˈpɪər/

disappear

消える

Meaning

to cease to be visible; to vanish

Example

The magician made the rabbit disappear.

マジシャンはウサギを消した。

C1 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。

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。

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 /ˈdrʌmɪt/

Drumet

ドラメット

Meaning

a small drum used in military or marching bands

Example

The drummer played a steady beat on the drumet during the parade.

ドラマーはパレード中にドゥルメットで一定のリズムを演奏しました。

B2 adjective /ˈdʌsti/

dusty

ほこりっぽい

Meaning

covered with or full of dust; dry and dull from lack of moisture or use

Example

The old bookshelf was dusty after years of neglect.

何年も放置された後、その古い本棚はほこりっぽかった。

C1 verb /dɪsˈkʌlər/

discolor

色あせる

Meaning

to change color, especially in a way that spoils the original appearance

Example

The fabric began to discolor after being left in the sun.

生地は太陽の下に置かれてから色が変わり始めました。

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。

C2 noun /draɪd roʊz ˈpɛtəlz/

Dried Rose Petals

乾燥ローズの花びら

Meaning

dehydrated petals from roses used for culinary and aromatic purposes

Example

The dessert was garnished with dried rose petals.

デザートは乾燥ローズの花びらで飾られていました。

C1 adjective /dɪˈplɔːrəbl/

deplorable

ひどい

Meaning

deserving strong condemnation; shockingly bad in quality

Example

The refugees were living in deplorable conditions.

難民はひどい状況で生活していた。

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。

C1 noun /ˈdaʊri/

dowry

持参金

Meaning

Property or money brought by a bride to her husband at marriage.

Example

The dowry tradition is still followed in some cultures.

いくつかの文化では、持参金の伝統が今でも守られています。

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。

A1 noun /dɔːr/

Door

ドア

Meaning

a movable barrier used to close an entrance to a building or room

Example

Please close the door when you leave the room.

部屋を出るときはドアを閉めてください。

C1 adjective deft

deft

器用

Meaning

Neatly skillful and quick in one's movements; dexterous and adroit.

Example

The artist's deft hands created a masterpiece.

アーティストの器用な手は傑作を作り出しました。

B2 adjective /dɪˈfensɪv/

Defensive

防御的

Meaning

used or intended to defend or protect; showing a tendency to react in an angry or hurt way when criticized

Example

He became defensive when criticized about his work.

彼は自分の仕事を批判されると防御的になった。

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。

A2 verb /diːl/

deal

幸せ

Meaning

to distribute or give out something; to handle or manage

Example

He had to deal with many problems at work.

彼女は賞を受け取ったとき、幸せを隠すことができませんでした。

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。

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。

C1 adjective /dɪˈskrɪmɪˌneɪtɪŋ/

discriminating

選り好みする

Meaning

Having refined taste or good judgment; able to recognize subtle differences.

Example

She is known for her discriminating taste in art.

彼女は芸術における選り好みの味で知られています。

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 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。

C2 adjective /dɪˈmoʊniˌæk/

demoniac

悪魔的な

Meaning

possessed, produced, or influenced by a demon; frenzied or violent

Example

The soldiers fought with demoniac fury.

兵士たちは悪魔的な怒りで戦った。

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 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。

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。

C2 adjective /ˈdɔːrsəl/

dorsal

背鰭

Meaning

Relating to the back or upper side of an animal or body part.

Example

Sharks have a prominent dorsal fin.

サメは目立つ背鰭を持っています。

C1 verb /ˈdæmpən/

dampen

湿らせる, 和らげる

Meaning

to make something slightly wet; to make something less strong, active, or intense

Example

The rain dampened the excitement of the outdoor concert.

雨が屋外コンサートの興奮を和らげました。

B2 adjective /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 /ˈdɪti/

ditty

短い歌

Meaning

a short, simple song or poem

Example

She sang a cheerful little ditty while cooking.

彼女は料理をしながら陽気な小さな歌を歌っていた。

C1 adjective /dæft/

daft

ばか

Meaning

Silly or foolish.

Example

It was a daft idea to go hiking without water.

水なしでハイキングに行くのはばかげた考えでした。

C1 adjective /ˈdeɪnti/

dainty

優雅で可愛らしい

Meaning

Delicately small, pretty, and often considered elegant.

Example

She wore a dainty necklace made of pearls.

彼女は真珠でできた繊細なネックレスをしていました。

C2 noun /dɪsˈtɛmpər/

distemper

犬に感染するウイルス性疾患

Meaning

a viral disease affecting animals, especially dogs; also refers to a state of disorder

Example

The dog was diagnosed with distemper and needed immediate care.

その犬はディステンパーと診断され、即座の治療が必要でした。

C1 noun /djʊˈrɛs/

duress

強制

Meaning

threats, violence, or pressure used to force someone to do something

Example

She signed the contract under duress.

彼女は強制的に契約書に署名した。

B2 noun draʊt

drought

干ばつ

Meaning

A prolonged period of abnormally low rainfall; a shortage of water.

Example

Drought impacts crop growth significantly.

干ばつは作物の成長に大きな影響を与えます。

C1 verb /dɪsˈtrʌst/

distrust

不信

Meaning

to have no confidence or trust in someone or something

Example

Many people distrust politicians.

多くの人々は政治家を信用しません。

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 adjective /ˈdiː.teɪld/

detailed

詳細

Meaning

Having many details; very thorough.

Example

The report provided a detailed analysis of the situation.

報告書は状況の詳細な分析を提供しました。

C2 noun /ˈdɛkəˌlɔːɡ/

decalogue

Meaning

The Ten Commandments in the Bible; a set of fundamental rules or principles.

Example

The priest gave a sermon on the importance of the Decalogue.

A2 noun /ˈdrɔːɪŋ/

drawing

幸せ

Meaning

a picture or diagram made with a pencil, pen, or crayons rather than paint

Example

She showed me a drawing of her house.

彼女は賞を受け取ったとき、幸せを隠せなかった。

C2 noun /dɪˈsɛmbələr/

dissembler

偽善者

Meaning

a person who conceals their real feelings or intentions; a hypocrite or pretender

Example

The politician was accused of being a dissembler who never revealed his true plans.

その政治家は、自分の本当の計画を決して明かさなかった偽善者だと非難された。

C2 noun /dreɪk/

Drake

雄鴨

Meaning

a male duck; a type of waterfowl

Example

The drake led his family of ducks across the pond.

そのドレイクは、家族のカモたちを池の向こうに連れて行きました。

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 /ˈdræm.ə.tɪst/

dramatist

劇作家

Meaning

a person who writes plays

Example

Shakespeare is one of the greatest dramatists in history.

シェイクスピアは歴史上最も偉大な劇作家の一人です。

B1 noun /ˌdes.tɪˈneɪ.ʃən/

Destination

目的地

Meaning

the place to which someone or something is going; the ultimate purpose or end point

Example

Paris was their dream destination for their honeymoon trip.

パリは彼らのハネムーン旅行の夢の目的地でした。

B2 verb /doʊz/

doze

うたた寝

Meaning

To sleep lightly for a short time.

Example

He dozed off while reading the book.

彼は本を読みながらうたた寝をした。

B2 noun /daɪˈnæmɪks/

dynamics

ダイナミクス

Meaning

the forces or properties that stimulate growth, development, or change within a system or process

Example

The dynamics of the team changed after the new manager joined.

新しいマネージャーが参加した後、チームのダイナミクスは変化しました。

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 noun /drʌdʒ/

drudge

働き者

Meaning

A person made to do hard, menial, or dull work.

Example

He felt like a drudge, stuck in repetitive tasks all day.

彼は一日中、繰り返しの仕事に縛られている働き者のように感じていた。

C2 adjective /ˌdaɪəˈkrɪtɪkəl/

diacritical

ダイアクリティカル

Meaning

Relating to a mark added to a letter to indicate a different pronunciation or stress.

Example

The word résumé has diacritical marks that change its meaning from resume.

‘レジュメ’という言葉には、意味を変えるダイアクリティカルマークがあります。

B2 noun /ˈdræɡ.ən.flaɪ/

Dragon-fly

トンボ

Meaning

a large insect with four transparent wings that lives near water

Example

The dragonfly hovered over the pond.

トンボは池の上を飛んでいた。

A2 verb /dəˈrɛkt/ or /daɪˈrɛkt/

direct

指示する

Meaning

to manage or control the course of something; to give instructions

Example

She directed the team to complete the project on time.

彼女はチームにプロジェクトを時間通りに終わらせるよう指示しました。

B1 adjective /dɪˈtɜːrmɪnd/

determined

決心した

Meaning

Having firmly decided to do something and not letting anything stop you.

Example

She was determined to finish her studies despite many obstacles.

多くの障害があったにもかかわらず、彼女は学業を終わらせる決心をしていた。

A2 noun /dɪˈzaɪnər/

designer

デザイナー

Meaning

a person who plans and creates the form or structure of something

Example

The fashion designer presented her new collection.

ファッションデザイナーは新しいコレクションを発表しました。

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.

C2 noun /dɪˈklɪvɪti/

declivity

傾斜

Meaning

a downward slope of ground

Example

They carefully climbed down the declivity of the hill.

彼らは慎重に丘の傾斜を登った。

C2 noun /dɪˈmeɪn/

demesne

邸宅に付属する土地

Meaning

Land attached to a manor and retained for the owner's use.

Example

The castle was surrounded by its vast demesne.

その城は広大な邸宅に付属する土地に囲まれていました。

B2 verb /drɪft/

drift

漂う

Meaning

to move slowly, especially by air or water currents

Example

The boat began to drift away from the shore.

ボートは岸から離れ始めた。

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。

C1 noun /ˌdɪsəˈbiːdiəns/

disobedience

不従順

Meaning

failure or refusal to obey rules, laws, or authority

Example

The child's disobedience worried his parents.

子供の不従順は両親を心配させました。

C2 noun dɪsˈbɜːs.mənt

disbursement

支払い

Meaning

The payment of money from a fund.

Example

The company's disbursement of salaries was delayed.

会社の給与の支払いが遅れました。

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。

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。

C1 noun, adjective /dɪˈfiːtɪst/

defeatist

敗北主義者

Meaning

A person who expects or is excessively ready to accept failure; showing a tendency to expect defeat.

Example

His defeatist attitude discouraged the rest of the team.

彼の敗北主義的な態度は、チームの他のメンバーを落胆させました。

C1 noun /ˌdɪspɛnˈseɪʃən/

dispensation

Meaning

An exemption from a rule or usual requirement; a system of order, government, or control.

Example

The school granted him a special dispensation to skip the exam due to illness.

C1 verb /dɪsˈsætɪsfaɪ/

dissatisfy

不満にさせる

Meaning

to fail to please or meet expectations; to make someone unhappy

Example

The poor service dissatisfies many customers.

悪いサービスは多くの顧客を不満にさせます。

C2 verb /dɪˈsɪmjʊˌleɪt/

dissimulate

偽る

Meaning

To disguise or conceal one's true feelings or intentions.

Example

He tried to dissimulate his fear with a smile.

彼は笑顔で恐怖を隠そうとした。

B2 adjective daɪˈvɜːs

diverse

多様な

Meaning

Showing a great deal of variety; very different.

Example

Diverse industries enhance economic resilience.

多様な産業が経済的な回復力を高める。

B2 noun /ˌdɪsəˈɡriːmənt/

disagreement

不一致

Meaning

a failure to agree or a difference in opinion

Example

Their disagreement on the issue caused a delay in the project.

その問題に対する彼らの不一致はプロジェクトの遅延を引き起こしました。

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。

B2 noun /ˈdʌklɪŋ/

duckling

Meaning

a young duck

Example

The mother duck led her ducklings to the pond.

C1 verb /dɪˈstɪl/

distill

Meaning

To purify a liquid by heating and cooling; to extract the essential meaning or most important aspects.

Example

The factory distills water to make it safe for drinking.

B2 verb /ˌdaɪəɡˈnoʊz/

diagnose

診断する

Meaning

To identify a disease, condition, or problem by examining symptoms.

Example

The doctor diagnosed him with pneumonia.

医者は彼に肺炎と診断しました。

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 /dɔːn/

Dawn

夜明け

Meaning

the first appearance of light in the sky before sunrise; the beginning or start of something

Example

The fishermen set out to sea before dawn to catch the morning tide.

漁師たちは夜明け前に海に出て、朝の潮を捕まえました。

B2 verb /dɪˈvoʊt/

devote

捧げる

Meaning

to give time, effort, or resources to something

Example

She devotes much of her time to helping the poor.

彼女は貧しい人々を助けるために多くの時間を捧げています。

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 /dæm/

Dam

ダム; 貯水池;

Meaning

a barrier constructed to hold back water and raise its level; a female parent of an animal

Example

The massive dam provides electricity and controls flooding in the region.

巨大なダムはこの地域に電力を提供し、洪水を制御します。

B2 adjective dɪsˈrʌp.tɪv

disruptive

破壊的な, 不安定にする

Meaning

Causing or tending to cause disruption.

Example

Deforestation has a disruptive effect on wildlife.

森林伐採は野生動物に破壊的な影響を与えます。