C1 noun /ˌɑːrtʃˈbɪʃəp/

archbishop

大司教

Meaning

A senior bishop in charge of an archdiocese in the Christian Church.

Example

The archbishop delivered a sermon to thousands of people.

アーチビショップは何千人もの人々に説教をしました。

C1 adjective /ˌæl.ɡəˈrɪð.mɪk/

algorithmic

アルゴリズムに基づく

Meaning

Based on or using algorithms; relating to mathematical rules or procedures.

Example

Algorithmic processes power artificial intelligence systems.

アルゴリズミックなプロセスは人工知能システムを動かします。

C1 noun əˈpreɪ.zəl

appraisal

評価

Meaning

An assessment or evaluation of performance or quality.

Example

The annual appraisal determines salary increments.

年間の評価は給与の増加を決定します。

C1 adjective /əˈdɒptɪv/

adoptive

養子の

Meaning

relating to the adoption of a child or the act of taking something as one’s own

Example

She grew up in a loving adoptive family.

彼女は愛情深い養子の家族で育った。

C1 noun /əˈpɒsəl/

apostle

使徒, 擁護者

Meaning

A vigorous and pioneering advocate or supporter of a particular cause, often used for the early Christian disciples.

Example

He became an apostle of environmental protection.

彼は環境保護の使徒となった。

C1 noun /əˈsem.bli ˈseʃ.ən/

assembly session

アセンブリセッション

Meaning

A formal meeting where representatives gather to discuss and make decisions on important matters.

Example

The assembly session discussed global challenges.

アセンブリセッションは、世界的な課題について議論しました。

C1 noun /əˈsɛndənsi/

ascendancy

優位, 支配

Meaning

A position of power, influence, or control over others.

Example

The company gained ascendancy in the market through innovation.

その会社は革新を通じて市場で優位を獲得しました。

C1 noun /ˈæltoʊ/

alto

アルト (成人の歌声)

Meaning

the second highest adult singing voice, between soprano and tenor

Example

She sang the alto part in the choir beautifully.

彼女は合唱団でアルトパートを美しく歌いました。

C1 adjective /ˈækʃənəbl̩/

actionable

実行可能な

Meaning

Able to be acted on or giving sufficient reason for legal action.

Example

The lawyer confirmed that the evidence was actionable in court.

弁護士は証拠が法廷で実行可能であることを確認しました。

C1 adjective /ˈænsɪləri/

ancillary

補助的な

Meaning

providing necessary support to the main system or organization

Example

The company provides ancillary services to the healthcare industry.

その会社は医療業界に補助的なサービスを提供しています。

C1 adjective /ˈæmərəs/

amorous

情熱的

Meaning

Showing, feeling, or relating to romantic love or desire.

Example

He sent her an amorous letter filled with declarations of love.

彼は愛の宣言でいっぱいのアモロスな手紙を彼女に送った。

C1 adjective /əˈtjuːnd/

attuned

敏感な / 調和のとれた

Meaning

Being receptive or sensitive to something; well adjusted or in harmony.

Example

She is attuned to the needs of her students.

彼女は学生のニーズに敏感です。

C1 adjective /ˈæv.ɪd/

avid

熱心な

Meaning

having an eager desire or enthusiasm for something

Example

She is an avid reader of mystery novels.

彼女はミステリー小説の熱心な読者です。

C1 adverb /ɔːˈtɒnəməsli/

autonomously

自律的に

Meaning

In an independent or self-governing manner.

Example

The robot can operate autonomously without human intervention.

ロボットは人間の介入なしで自律的に動作できます。

C1 adjective /əˈnæl.ə.ɡəs/

analogous

類似

Meaning

Comparable in certain respects, typically in a way that makes clearer the nature of things being compared.

Example

The human brain is analogous to a supercomputer.

人間の脳はスーパーコンピュータに類似している。

C1 verb /əˈskraɪb/

ascribe

帰属する、割り当てる

Meaning

To attribute something to a cause, source, or person.

Example

Many scholars ascribe the poem to an unknown author.

多くの学者はこの詩を未知の作者に帰属させている。

C1 verb /ænˈtæɡənaɪz/

antagonize

挑発する

Meaning

to cause someone to become hostile or angry; to provoke opposition

Example

His rude remarks only served to antagonize his colleagues.

彼の失礼な言葉は彼の同僚をアンタゴナイズすることにしかならなかった。

C1 noun /ˈɑːr.tər.i/

Artery

動脈

Meaning

a blood vessel that carries blood away from the heart to other parts of the body

Example

The doctor checked the pulse in his artery.

医者は彼の動脈で脈拍を確認した。

C1 noun /ˈædʒʌŋkt/

adjunct

補助的

Meaning

a thing added to something else as a supplementary part

Example

The professor worked as an adjunct at the university.

教授は大学で補助的な役職で働いていました。

C1 noun ˌæf.ɔːr.ɪˈsteɪ.ʃən

afforestation

植林

Meaning

The action of planting trees on an area of land in order to form a forest.

Example

Afforestation helps restore biodiversity.

植林は生物多様性を回復するのに役立ちます。

C1 adjective /ˈærɪd/

arid

乾燥した

Meaning

extremely dry; lacking in interest or excitement

Example

The desert is known for its arid climate.

砂漠はその乾燥した気候で知られています。

C1 adjective /əˈmiːnəbl/

amenable

協力的

Meaning

willing to cooperate or be influenced; open to suggestions

Example

She was amenable to the idea of working longer hours.

彼女は長時間働くという考えに賛成だった。

C1 noun /ˈæŋɡwɪʃ/

anguish

苦悩

Meaning

Severe mental or physical pain or suffering.

Example

She was in deep anguish after hearing the tragic news.

悲しい知らせを聞いて、彼女は深い苦悩に沈んだ。

C1 noun /ˈæbsɛs/

abscess

膿瘍

Meaning

A swollen area within body tissue containing pus, usually caused by infection.

Example

The dentist treated the abscess in his tooth.

歯医者は彼の歯の膿瘍を治療しました。

C1 adjective /ˈærəbəl/

arable

耕作可能

Meaning

suitable for growing crops or farming

Example

The farmer purchased arable land to expand his crops.

農家は作物を拡大するために耕作可能な土地を購入しました。

C1 noun /əˈsɛsər/

assessor

評価者

Meaning

a person who evaluates or estimates the nature, ability, or quality of something

Example

An external assessor reviewed the project report.

外部の評価者がプロジェクトの報告書を確認しました。

C1 verb /ɔːˈθɛntɪkeɪt/

authenticate

認証する

Meaning

To prove or show that something is genuine or true.

Example

The bank uses advanced technology to authenticate online transactions.

銀行はオンライン取引を認証するために高度な技術を使用しています。

C1 noun /əˈtaɪər/

attire

衣装

Meaning

Clothing, especially formal or elegant wear.

Example

She wore traditional attire at the wedding ceremony.

彼女は結婚式で伝統的な衣装を着ていた。

C1 noun /ˈeɪ.kər.ɪdʒ/

acreage

エーカー

Meaning

An area of land measured in acres.

Example

The farmer owns a large acreage of fertile land.

農夫は広大な肥沃な土地を所有しています。

C1 noun /ˌæn.ɪˈmɒs.ə.ti/

Animosity

敵意; 憎しみ

Meaning

strong hostility or dislike; active hatred or ill will

Example

There was clear animosity between the two rival teams.

二つのライバルチーム間には明確な敵意がありました。

C1 noun /ˌæbəˈrɪdʒəniːz/

aborigines

アボリジニ

Meaning

The original inhabitants of a land, especially in Australia.

Example

The aborigines have preserved their traditions for thousands of years.

アボリジニーズは何千年もの間、彼らの伝統を守り続けてきました。

C1 noun /ˌɔːkʃəˈnɪər/

auctioneer

競売人

Meaning

a person who conducts auctions by calling out bids and selling items to the highest bidder

Example

The auctioneer quickly raised the price as bidders competed for the painting.

競売人は入札が進む中で素早く価格を上げた。

C1 noun /əˈduː/

ado

騒ぎ / 不必要な活動

Meaning

a fuss or unnecessary activity; trouble or difficulty

Example

Without further ado, let’s begin the ceremony.

これ以上のアドなしで、式を始めましょう。

C1 adjective ˈæl.ɡə.rɪ.ðəm drɪv.ən

algorithm-driven

アルゴリズムによって駆動される。

Meaning

Controlled or powered by computer algorithms.

Example

Algorithm-driven systems increase accuracy.

アルゴリズム駆動システムは精度を向上させる。

C1 adverb /əˈraɪ/

awry

失敗

Meaning

away from the expected or proper direction; wrong or amiss

Example

The plan went awry when the weather suddenly changed.

天気が突然変わったとき、計画は失敗した。

C1 verb /ˌæprɪˈhɛnd/

apprehend

逮捕する

Meaning

to arrest or seize someone; to understand or perceive something

Example

The police managed to apprehend the thief after a long chase.

警察は長い追跡の後、泥棒を捕まえることに成功した。

C1 noun /ɔːˈrɔːrə/

aurora

オーロラ

Meaning

A natural display of lights in the sky, usually seen in polar regions.

Example

We traveled to Norway to see the northern aurora.

私たちはノルウェーに行き、北極のオーロラを見ました。

C1 verb /ɔːɡˈmɛnt/

augment

増加させる

Meaning

To increase or strengthen something.

Example

The company plans to augment its workforce.

会社は労働力を増加させる計画を立てています。

C1 noun /əˈrɪəz/

arrears

未払い

Meaning

Money that is owed and should have been paid earlier.

Example

She was months in arrears with her electricity bill.

彼女は電気代の未払いが数ヶ月遅れていた。

C1 preposition /əˈtɒp/

atop

上に

Meaning

on the top of something

Example

A flag was placed atop the tower.

旗は塔の上に置かれました。

C1 noun /ˈæb.stɪ.nəns/

abstinence

禁欲、節制

Meaning

the practice of restraining oneself from indulging in something, typically alcohol or sex

Example

His doctor advised abstinence from alcohol for better health.

彼の医者は健康のためにアルコールを控えるように助言しました。

C1 noun /ˌæf.ɚˈmeɪ.ʃən/

affirmation

確認

Meaning

The action or process of affirming something or being affirmed; emotional support or encouragement.

Example

Daily affirmation of self-worth boosts confidence.

自己肯定の毎日の確認は自信を高めます。

C1 noun /ˌænəsˈθetɪk/

anesthetic

麻酔薬

Meaning

A substance that causes loss of sensation or consciousness, especially used during surgery.

Example

The doctor administered a local anesthetic before stitching the wound.

医者は傷を縫う前に局所麻酔を施しました。

C1 verb /əˈliː.vi.eɪt/

alleviate

軽減するまたは和らげる

Meaning

To make suffering, deficiency, or a problem less severe; to relieve or ease.

Example

Meditation can alleviate stress and improve focus.

瞑想はストレスを軽減し、集中力を高めることができます。

C1 noun /əˈkwɪtl/

acquittal

Meaning

a judgment that a person is not guilty of the crime with which they have been charged

Example

The acquittal of the accused shocked the public.

C1 adjective ˈeɪlɪəneɪtɪd

alienated

疎外された

Meaning

Feeling isolated or estranged; disconnected from others or society.

Example

Alienated students are more prone to delinquency.

疎外された学生は、犯罪に走りがちです。

C1 noun esˈθet.ɪks

aesthetics

美学

Meaning

A set of principles concerned with the nature and appreciation of beauty, especially in art and design.

Example

Interior design focuses on aesthetics and functionality.

インテリアデザインは美学と機能性に焦点を当てています。

C1 adjective /ˌeɪsɪˈmɛtrɪkəl/

asymmetrical

非対称

Meaning

Having parts that are not the same in size, shape, or arrangement.

Example

She wore an asymmetrical dress that drew everyone’s attention.

彼女は非対称のドレスを着て、皆の注目を集めていた。

C1 verb /ˈæmpjʊteɪt/

amputate

切断する

Meaning

to cut off a limb from the body by surgery

Example

The doctors had to amputate his leg after the accident.

事故の後、医師は彼の足を切断しなければなりませんでした。

C1 noun /əˌsaɪˈniː/

assignee

受領者

Meaning

a person to whom a right or property is legally transferred

Example

The assignee of the contract is responsible for all future obligations.

契約のアサイニーはすべての将来の義務に責任を負います。

C1 verb /əbˈzɒlv/

absolve

解放する

Meaning

to free someone from blame, guilt, or responsibility; to pardon

Example

The priest absolved him of his sins.

牧師は彼を罪から解放した。

C1 noun /əˈpɒlədʒɪst/

apologist

擁護者

Meaning

a person who defends or justifies something, often a controversial belief or institution

Example

He is known as an apologist for authoritarian regimes.

彼は権威主義的な政権の擁護者として知られています。

C1 verb /ˈænɪmeɪt/

animate

アニメーションする

Meaning

to bring to life or make lively; to create animation for films or cartoons

Example

The artist will animate the characters for the movie.

アーティストは映画のキャラクターをアニメートします。

C1 noun /ɔːˈtɒmətən/

automaton

自動機械

Meaning

A machine that works automatically; also refers to a person who behaves like a machine, without thinking.

Example

He worked like an automaton, without showing any emotion.

彼は感情を見せずにオートマトンのように働いていました。

C1 verb /ˈæmbʊʃ/

ambush

待ち伏せする

Meaning

To attack suddenly and unexpectedly from a hidden position.

Example

The soldiers planned to ambush the enemy at dawn.

兵士たちは夜明けに敵を待ち伏せする計画を立てた。

C1 noun /əˈdʒɪl.ɪ.ti/

agility

敏捷性

Meaning

Ability to work quickly and easily, both physically and mentally.

Example

Mental agility is essential for problem-solving.

問題解決には精神的な敏捷性が必要です。

C1 noun /ˌæŋɡloʊ ˈsæksən/

anglo-saxon

Meaning

A member of the Germanic peoples who settled in England in the early Middle Ages; also relating to their language or culture.

Example

The Anglo-Saxon period greatly influenced English culture and language.

C1 verb /əˈlɒt/

allot

幸せ

Meaning

to give or assign something, often a share or portion, to someone

Example

Each student was allotted ten minutes to present.

彼女は賞を受け取ったとき、幸福を隠すことができませんでした。

C1 noun /ˌænəlˈdʒiːzɪk/

analgesic

鎮痛剤

Meaning

A drug or substance that relieves pain.

Example

She took an analgesic to ease her headache.

彼女は頭痛を和らげるために鎮痛剤を飲みました。

C1 adjective /ˌeɪθiˈɪstɪk/

atheistic

無神論的

Meaning

Relating to or characteristic of atheists or atheism.

Example

She grew up in an atheistic household with no religious rituals.

彼女は宗教的な儀式のない無神論的な家庭で育ちました。

C1 noun /əˈsæsɪn/

Assassin

暗殺者

Meaning

a person who murders an important person for political or religious reasons

Example

The president was protected from potential assassins by security guards.

大統領はセキュリティガードによって潜在的なアサシンから守られていた。

C1 adverb /ˈeɪ.mi.ə.bli/

Amiably

友好的に, 親切に

Meaning

in a friendly and pleasant manner

Example

They discussed the issue amiably without any arguments.

彼らは議論を交わすことなく、友好的にその問題を話し合った。

C1 noun /ˈɔːnɪŋ/

awning

オーニング

Meaning

a sheet of canvas or material stretched on a frame to shelter a place from the sun or rain

Example

We sat under the awning to avoid the heavy rain.

私たちは大雨を避けるためにオーニングの下に座っていました。

C1 noun ˈæf.lu.əns

affluence

富裕

Meaning

The state of having a great deal of money; wealth.

Example

His affluence allowed him to travel the world.

彼の富は世界中を旅することを可能にしました。

C1 noun /ˈækwɪˌdʌkt/

aqueduct

水道橋

Meaning

a structure built to carry water over long distances

Example

The Romans built aqueducts to supply water to their cities.

ローマ人は都市に水を供給するために水道橋を建設しました。

C1 adjective /əˈluːf/

aloof

距離を置いた

Meaning

Not friendly or forthcoming; cool and distant.

Example

He remained aloof during the entire discussion.

彼は議論の間ずっと距離を置いていました。

C1 noun /ˌæfəˈdeɪvɪt/

affidavit

宣誓供述書

Meaning

a written statement confirmed by oath or affirmation, used as evidence in court

Example

The witness submitted an affidavit to the court.

証人は裁判所にアフィダビットを提出しました。

C1 adjective əsˈtjuːt

astute

鋭いまたは抜け目のない

Meaning

Having or showing an ability to accurately assess situations or people and turn this to one's advantage.

Example

His astute observations helped solve the complex problem.

彼の鋭い観察が複雑な問題を解決するのに役立った。

C1 adjective /əˈɡrɛəriən/

agrarian

農業的

Meaning

Related to farming, agriculture, or rural land.

Example

The country’s economy is still largely agrarian.

その国の経済はまだ主に農業的です。

C1 adjective /ˌeɪpəˈlɪtɪkəl/

apolitical

政治的でない

Meaning

not interested in or not connected with politics

Example

She prefers to stay apolitical and focus on her work.

彼女は政治的でない態度を保ち、仕事に集中することを好みます。

C1 noun /əˈbɪs/

abyss

深淵

Meaning

a deep, immeasurable space, chasm, or void; something seemingly without end

Example

The climbers looked down into the dark abyss below.

登山者たちは下の暗い深淵を見下ろしました。

C1 noun /ˈɑːrmfʊl/

armful

腕いっぱい

Meaning

As much as can be carried in one or both arms.

Example

She carried an armful of books into the library.

彼女は図書館に腕いっぱいの本を持っていった。

C1 noun /əˈbændənmənt/

abandonment

見捨て

Meaning

the act of leaving someone or something behind completely; the state of being deserted

Example

The child suffered deep emotional pain because of abandonment.

その子供は見捨てられたことで深い感情的な痛みを受けた。

C1 adjective /əˈnɒmələs/

anomalous

異常

Meaning

deviating from what is standard, normal, or expected

Example

Scientists observed an anomalous result during the experiment.

科学者たちは実験中に異常な結果を観察しました。

C1 adjective /əˈniːmɪk/

anemic

貧血

Meaning

Suffering from anemia; lacking in vitality, strength, or color.

Example

The doctor prescribed iron supplements for her anemic condition.

医者は彼女の貧血状態のために鉄分補充剤を処方しました。

C1 adjective /ˈɔːdəˌtɔːri/

auditory

Meaning

Relating to the sense of hearing.

Example

The lecture was designed to enhance students' auditory learning skills.

C1 adjective, noun /ɔːɡˈzɪliəri/

auxiliary

補助的

Meaning

(adjective) providing supplementary or additional help and support; (noun) a person or thing that provides auxiliary support

Example

The hospital has an auxiliary power generator in case of emergencies.

病院には緊急時用の補助電力発電機があります。

C1 adjective eɪˈsɪŋ.krə.nəs

asynchronous

非同期の

Meaning

Of or requiring a form of computer control timing protocol in which a specific operation begins upon receipt of an indication that the preceding operation has been completed.

Example

Asynchronous courses allow students to learn at their own pace.

非同期コースは学生が自分のペースで学べるようにします。

C1 noun /əˈstrɑː.lə.dʒər/

Astrologer

占星術師

Meaning

a person who studies astrology and makes predictions based on the positions of stars and planets

Example

The astrologer predicted good fortune in her future.

その占星術師は、彼女の未来に良い運命があると予測しました。

C1 adjective /ˈæm.ɪ.kə.bəl/

amicable

友好的

Meaning

Having a spirit of friendliness; without serious disagreement or rancor.

Example

They reached an amicable agreement.

彼らは友好的な合意に達しました。

C1 noun /ədˈhɪə.rəns/

adherence

遵守

Meaning

The practice of following or keeping to a rule, standard, or belief.

Example

Adherence to rules is crucial in any organization.

規則を遵守することは、どの組織においても重要です。

C1 adjective /ˌeɪˈtɪpɪkəl/

atypical

非典型

Meaning

not representative of a type, group, or class; unusual or abnormal

Example

The doctor said it was an atypical case of the disease.

医者はそれが病気の非典型的なケースだと言いました。

C1 noun /ˈæmnəsti/

amnesty

アムネスティ

Meaning

An official pardon granted to people who have been convicted of political offenses.

Example

The government announced an amnesty for all political prisoners.

政府はすべての政治犯に対してアムネスティを発表しました。

C1 adjective /ˈɑːr.dənt/

Ardent

熱心な; 熱烈な; 情熱的な

Meaning

very enthusiastic; passionate; fervent

Example

She is an ardent supporter of environmental conservation.

彼女は環境保護の熱心な支持者です。

C1 verb /əbˈsteɪn/

abstain

自制する

Meaning

To restrain oneself from indulging in or partaking of something.

Example

People often abstain from digital devices to enhance focus.

人々は集中力を高めるためにデジタル機器を使うのを自制することがよくあります。

C1 noun /ˈæl.kə.laɪ/

alkali

アルカリ性物質

Meaning

a soluble base substance, typically with a pH greater than 7, that neutralizes acids

Example

Soap contains alkali which helps remove grease.

石鹸にはアルカリ性物質が含まれており、油を取り除くのに役立ちます。

C1 verb /əˈsæsɪneɪt/

assassinate

暗殺

Meaning

To murder someone important, often a political or religious leader, usually by surprise attack.

Example

The rebels planned to assassinate the king.

反乱者たちは王を暗殺する計画を立てた。

C1 noun /ˌævɒ̃ˈɡɑːrd/

avantgarde

アバンギャルド

Meaning

people or works that are innovative, experimental, and ahead of their time

Example

The avantgarde of the 20th century reshaped modern art.

20世紀のアバンギャルドは現代アートを再形成した。

C1 adjective /əˈrɛstɪŋ/

arresting

魅力的な

Meaning

Attracting attention in a striking or impressive way.

Example

The actress gave an arresting performance.

女優は魅力的な演技をしました。

C1 adjective /əˈwɒʃ/

awash

水浸し

Meaning

covered or flooded with water or something in large quantities

Example

The market was awash with cheap imported goods.

市場は安価な輸入品で水浸しだった。

C1 noun /əˈlɒt.mənt/

allotment

割り当て、配分

Meaning

The distribution or allocation of something, especially resources or portions.

Example

Each department received an allotment of resources.

各部門はリソースの割り当てを受け取りました。

C1 noun /ɔːˈtɒkrəsi/

autocracy

独裁政治

Meaning

A system of government in which one person has absolute power.

Example

The country suffered under decades of autocracy.

その国は何十年もの間、専制政治に苦しんでいました。

C1 verb /ˈædʒ.ɪ.teɪt/

agitate

扇動する, 激しくする

Meaning

to stir up feelings or disturb; to campaign for change

Example

The protesters agitated for better working conditions.

抗議者たちはより良い労働条件を求めて活動した。

C1 noun /əˈtjuːn.mənt/

attunement

調和

Meaning

Being in harmony or responsive to someone's emotional state.

Example

Attunement to emotions improves relationships.

感情への調和は関係を改善する。

C1 noun /əˈfɪn.ɪ.ti/

affinity

親近感

Meaning

A natural liking for or attraction to a person, thing, idea, etc.

Example

She has an affinity for classical music.

彼女はクラシック音楽に親近感を持っています。

C1 adjective /əˈθɔːrɪtətɪv/

authoritative

権威的な

Meaning

Having or showing authority; commanding and self-confident; reliable as a source of information.

Example

She spoke in an authoritative tone that silenced the room.

彼女は権威的な口調で話し、部屋を静かにさせた。

C1 noun /əˈstuːt.nəs/

astuteness

洞察力

Meaning

The ability to accurately assess situations or people and turn this to one's advantage.

Example

His astuteness helped in negotiations.

彼の洞察力は交渉で役立った。

C1 adjective /ˈɔːrəl/

aural

聴覚の

Meaning

Relating to the ear or the sense of hearing.

Example

The lecture was an aural experience as well as an intellectual one.

講義は聴覚的な体験であり、知的な体験でもありました。

C1 adjective ˌæd.vɚˈser.i.əl

adversarial

対立的な

Meaning

Involving or characterized by conflict or opposition.

Example

The two companies have an adversarial relationship in the market.

その二つの会社は市場で対立的な関係を持っている。

C1 adjective /iːsˈθɛθɪkəl/

aesthetical

美的な

Meaning

concerned with beauty or the appreciation of beauty; related to artistic taste or appearance

Example

The architect focused on the aesthetical balance of the building.

建築家は建物の美的なバランスに注目した。

C1 noun /ˈævətɑːr/

avatar

アバター

Meaning

an icon or figure representing a person in digital contexts; in Hinduism, a divine incarnation

Example

She changed her social media avatar to a new cartoon image.

彼女はソーシャルメディアのアバターを新しいカートゥーン画像に変更しました。

C1 noun /əˈsɪdɪti/

acidity

酸性度

Meaning

the quality or degree of being acidic; the amount of acid present in a substance

Example

The acidity of the soil affects how well crops grow.

土壌の酸性度は作物の成長に影響する。

C1 adjective /ˈɑːrɡjuəbl/

arguable

議論の余地がある

Meaning

open to debate or discussion; not certain and capable of being argued for or against

Example

It is arguable that technology has improved our quality of life.

テクノロジーが私たちの生活の質を向上させたと言うのは議論の余地がある。

C1 verb /əˈfɪks/

affix

貼り付ける / 取り付ける

Meaning

to attach or stick something firmly to another thing

Example

Please affix the stamp to the envelope.

切手を封筒に貼ってください。

C1 noun /əˈboʊd/

abode

住居

Meaning

a place of residence; a home

Example

They invited us to their humble abode.

彼らは私たちを彼らの質素な住居に招待しました。

C1 adjective /əˈpriː.ʃə.bəl/

Appreciable

顕著な; 重要な; 数量的にかなり

Meaning

noticeable; significant; considerable in amount

Example

There was an appreciable improvement in his test scores.

テストのスコアに顕著な改善が見られました。

C1 noun /ˈædɪdʒ/

adage

格言

Meaning

a short, well-known saying that expresses a general truth or piece of advice

Example

The old adage says that honesty is the best policy.

古い格言は、正直は最良の政策だと言っています。

C1 verb /əˈflɪkt/

afflict

苦しめる

Meaning

to cause pain, suffering, or distress to someone or something

Example

Many people are afflicted by seasonal allergies.

多くの人々が季節性アレルギーに悩まされています。

C1 verb /əˈtjuːn/

attune

順応させる

Meaning

to make someone or something aware of or responsive to something; to adjust or harmonize

Example

She quickly attuned herself to the needs of her new team.

彼女は新しいチームのニーズにすぐ順応した。

C1 noun /ˈæspɪrənt/

aspirant

志願者

Meaning

a person who seeks or hopes to achieve a position of honor or advancement

Example

She is an aspirant for the university's top scholarship.

彼女は大学の最優秀奨学金の志願者です。

C1 adjective /æbˈdɑː.mə.nəl/

abdominal

腹部の

Meaning

relating to the abdomen (the part of the body between the chest and pelvis)

Example

He complained of severe abdominal pain.

彼はひどい腹痛を訴えていました。

C1 noun /æɡˈnɒs.tɪk/

agnostic

アグノスティック

Meaning

a person who believes that nothing is known or can be known about the existence of God; uncertain in belief

Example

He described himself as an agnostic rather than an atheist.

彼は自分を無神論者ではなくアグノスティックだと説明した。

C1 adjective /ænˈtɪriər/

Audible

聞こえる

Meaning

able to be heard; loud enough to hear

Example

The speaker's voice was barely audible from the back of the large hall.

スピーカーの声は大きなホールの後ろからほとんど聞こえませんでした。

C1 verb /əˈdʒɔɪn/

adjoin

隣接する

Meaning

To be next to and joined with something.

Example

Their house adjoins the park.

彼らの家は公園に隣接しています。

C1 noun /ænˈθɒlədʒi/

anthology

アンソロジー

Meaning

A collection of literary works, such as poems, short stories, or essays, compiled into one volume.

Example

She contributed a poem to the new poetry anthology.

彼女は新しい詩のアンソロジーに詩を寄稿した。

C1 noun /əˈkuːstɪks/

acoustics

音響学

Meaning

the science of sound, or the properties of a space that affect how sound is heard

Example

The hall’s excellent acoustics made the orchestra sound rich and clear.

ホールの優れた音響学により、オーケストラの音が豊かで明確に聞こえました。

C1 noun /ədˈhiːʒən/

adhesion

付着

Meaning

the process or state of sticking to something

Example

Strong adhesion is needed for the tiles to stay in place.

タイルがその位置に留まるためには強い付着が必要です。

C1 verb /ˈæk.lɪ.meɪt/

acclimate

順応する

Meaning

To adapt or become accustomed to a new environment or situation

Example

It takes time to acclimate to a new climate.

新しい気候に順応するには時間がかかります。

C1 noun /ˈælkəmi/

alchemy

錬金術

Meaning

A medieval practice combining elements of chemistry and philosophy, aimed at transforming matter, especially turning base metals into gold.

Example

Medieval scientists devoted their lives to alchemy.

中世の科学者たちは命を錬金術に捧げました。

C1 adjective /ɔːˈdeɪ.ʃəs/

Audacious

大胆

Meaning

showing willingness to take bold risks; daring

Example

His audacious plan to climb the mountain without proper equipment shocked everyone.

彼の大胆な計画は、適切な装備なしで山を登ろうとすることで、全員を驚かせた。