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 /ˈæpəθi/

apathy

無関心

Meaning

a lack of interest, enthusiasm, or concern

Example

The students showed apathy towards the new rules.

学生たちは新しいルールに無関心を示しました。

C1 noun ˈæk.si.əm

axiom

公理

Meaning

A statement or principle that is considered true and does not require proof.

Example

Actions speak louder than words is a well-known axiom.

行動は言葉よりも雄弁である、それはよく知られた公理です。

C1 adjective /ˌæbəˈrɪdʒənəl/

aboriginal

先住民

Meaning

Relating to the original inhabitants of a region.

Example

The museum has a large collection of aboriginal art.

博物館には先住民のアートの大きなコレクションがあります。

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 verb /ˈæbdɪkeɪt/

abdicate

放棄する

Meaning

To give up a position of power or responsibility, especially a throne.

Example

The king decided to abdicate the throne.

王は王位を放棄することに決めました。

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 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 /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 adjective /ˌæl.truˈɪs.tɪk/

altruistic

利他的な

Meaning

Showing a disinterested and selfless concern for the well-being of others.

Example

Her altruistic nature led her to volunteer for charities.

彼女の利他的な性格は、チャリティー活動のボランティアをするよう促した。

C1 noun /əˌsæsɪˈneɪʃən/

assassination

暗殺

Meaning

The act of killing someone important, often for political or ideological reasons.

Example

The assassination of the president shocked the nation.

大統領の暗殺は国全体を驚かせた。

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 /əˌlɪtəˈreɪʃən/

alliteration

頭韻

Meaning

the occurrence of the same consonant sound at the beginning of words in close succession

Example

She used alliteration in her poem to add musicality.

彼女は詩の中で音楽性を加えるためにアリテレーションを使用しました。

C1 verb /ˈɑːrbɪtreɪt/

arbitrate

仲裁する

Meaning

to settle a dispute between two parties by acting as an impartial judge

Example

The committee agreed to arbitrate the contract dispute.

委員会は契約紛争を仲裁することに同意しました。

C1 noun, adverb /ˈeɪliəs/

alias

別名

Meaning

A false or assumed identity; also used to mean 'otherwise called'.

Example

The criminal was known by the alias 'Shadow'.

その犯罪者は『シャドウ』という別名で知られていた。

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 /ɑːrˈmɑːdə/

armada

戦艦艦隊

Meaning

A large fleet of warships.

Example

The Spanish Armada sailed against England in 1588.

スペインのアルマダは1588年にイギリスに対して出航した。

C1 adjective /ˈæŋ.ɡjə.lər/

Angular

角度的な

Meaning

having sharp corners or edges; relating to angles

Example

The building has an angular design with sharp corners.

その建物は鋭い角を持つ角度的なデザインです。

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 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 noun /ˈækəleɪd/

accolade

栄誉

Meaning

An award, honor, or expression of praise.

Example

She received an accolade for her outstanding performance.

彼女は卓越したパフォーマンスで栄誉を受けました。

C1 adjective /ˈɛərˌtaɪt/

airtight

気密の

Meaning

Completely sealed so that no air can get in or out.

Example

Store the cookies in an airtight container to keep them fresh.

クッキーは新鮮さを保つために気密容器に保管してください。

C1 adjective /ˈɔːbərn/

auburn

赤褐色

Meaning

reddish-brown in color, especially used to describe hair

Example

She has long auburn hair that shines in the sunlight.

彼女は長い赤褐色の髪を持っていて、日光の下で輝いています。

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 əˈrɪd.ɪ.ti

aridity

干ばつ

Meaning

The state of being extremely dry, especially having insufficient rainfall to support vegetation.

Example

The aridity of the land is increasing due to climate change.

気候変動の影響で土地の干ばつが進行しています。

C1 noun əˈniː.mi.ə

anemia

貧血

Meaning

A condition in which there is a deficiency of red blood cells or hemoglobin in the blood.

Example

Genetic therapy addresses anemia effectively.

遺伝子治療は貧血を効果的に治療します。

C1 adjective /ɔːˌθɒr.ɪˈteə.ri.ən/

authoritarian

権威主義者

Meaning

Demanding absolute obedience to authority; excessively controlling or strict in governance.

Example

Authoritarian parenting often limits a child's independence.

権威主義的な育児は、しばしば子供の独立性を制限します。

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 adverb /əˈkjuːtli/

acutely

鋭く

Meaning

in a sharp, intense, or severe way; with keen awareness

Example

She was acutely aware of the risks involved.

彼女はその危険性を鋭く認識していた。

C1 noun /ˈælkoʊv/

alcove

アルコーブ

Meaning

A small recessed section of a room or a nook.

Example

She placed a reading chair in the alcove near the window.

彼女は窓の近くのアルコーブに読書用の椅子を置きました。

C1 noun/verb /ˈætrəfi/

atrophy

萎縮

Meaning

a decrease in size or wasting away of a body part, tissue, or ability due to lack of use

Example

Without regular exercise, muscles may atrophy over time.

定期的な運動がないと、筋肉は時間とともに萎縮する可能性があります。

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 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 adjective /ˈædʒ.aɪl/

agile

素早く柔軟

Meaning

able to move quickly and easily; quick and adaptable in thinking or action

Example

The startup team was agile in responding to market changes.

スタートアップチームは市場の変化に迅速に対応しました。

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 verb ɔːɡˈmɛntɪŋ

augmenting

増加する

Meaning

Increasing; making something greater in size, number, or degree

Example

Life expectancy is augmenting with advancements in healthcare.

医療の進歩により、平均寿命は増加しています。

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 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 /ˌæntɪˈsiːdənt/

antecedent

先例

Meaning

something that came before; a previous event, condition, or cause

Example

The cultural antecedents of this festival go back centuries.

この祭りの文化的な先例は何世紀も前に遡ります。

C1 adjective /ˌæpəˈθɛtɪk/

apathetic

Meaning

showing or feeling little or no interest, enthusiasm, or concern

Example

He was apathetic about the outcome of the match.

C1 adjective ˈɑː.dʒu.əs

arduous

骨の折れる

Meaning

Involving or requiring strenuous effort; difficult and tiring.

Example

The trek through the mountains was an arduous journey.

山を越える旅は骨の折れる旅だった。

C1 adjective /ˌeɪˈmɔːrəl/

amoral

アモラル

Meaning

Lacking a moral sense; unconcerned with rightness or wrongness of something.

Example

The character in the novel was portrayed as completely amoral.

小説の登場人物は完全にアモラルとして描かれた。

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 noun ˌɔːɡ.menˈteɪ.ʃən

augmentation

増加または拡張

Meaning

Increasing quantity, power or performance.

Example

The company invested in the augmentation of its workforce.

その会社は労働力の増強に投資しました。

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 /ˈɑːrməri/

armory

武器庫

Meaning

A place where weapons are stored; a supply of resources or skills.

Example

The soldiers kept their weapons in the armory.

兵士たちは武器を武器庫に保管していた。

C1 noun /əˈkɔːrdiən/

accordion

アコーディオン (楽器)

Meaning

a musical instrument played by squeezing and expanding with keys and buttons

Example

The musician played a cheerful tune on the accordion.

ミュージシャンはアコーディオンで陽気なメロディーを演奏しました。

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 noun /ˈænəɡræm/

anagram

他の単語やフレーズの文字を並べ替えて作られた単語またはフレーズ。

Meaning

A word or phrase formed by rearranging the letters of another word or phrase.

Example

The word 'listen' is an anagram of 'silent'.

'listen' は 'silent' のアナグラムです。

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 /əˈkʌmplɪs/

accomplice

共犯者

Meaning

a person who helps another commit a crime

Example

The thief was arrested along with his accomplice.

泥棒は共犯者と一緒に逮捕されました。

C1 adjective /ˌæn.ɪkˈdoʊ.t̬əl/

anecdotal

事実や調査ではなく、個人的な話に基づく、逸話的な

Meaning

Based on personal accounts rather than facts or research; characterized by anecdotes.

Example

The book was filled with anecdotal evidence rather than data.

その本はデータではなく、逸話的証拠で満たされていました。

C1 noun /ˈɑːr.sən.əl/

arsenal

兵器庫

Meaning

A collection or storage place for weapons and military equipment.

Example

The army kept its weapons in a secure arsenal.

軍隊は武器を安全な兵器庫に保管していた。

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 /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 /ˈæntənɪm/

antonym

反意語

Meaning

A word opposite in meaning to another.

Example

‘Hot’ is the antonym of ‘cold’.

‘Hot’ は ‘cold’ の反意語です。

C1 adjective /ˈædʒɪteɪtɪd/

Agitated

動揺した; 不安な; 落ち着かない; 否定的に興奮した

Meaning

disturbed; anxious; restless; excited in a negative way

Example

He became agitated when he heard the bad news.

彼は悪いニュースを聞いて動揺した。

C1 noun, verb /əˈsɛnt/

assent

同意

Meaning

To agree to something, especially after careful consideration; an expression of approval.

Example

She nodded her head in silent assent.

彼女は静かにうなずいた。

C1 adverb /əˈlɜːrtli/

alertly

注意深く

Meaning

in a watchful, attentive, and quick-to-notice manner

Example

She listened alertly to every sound in the dark forest.

彼女は暗い森であらゆる音を注意深く聞いていた。

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 adjective /æmˈbɪvələnt/

ambivalent

相反する

Meaning

Having mixed or contradictory feelings about something or someone.

Example

She was ambivalent about accepting the new job offer.

彼女は新しい仕事のオファーを受け入れることに対してアンビヴァレントだった。

C1 noun əˌsɪm.ɪˈleɪ.ʃən

Assimilation

同化

Meaning

Connecting new information with existing knowledge

Example

Proper assimilation of knowledge leads to effective learning.

知識の適切な同化は効果的な学習につながります。

C1 noun /ˈæntɪˌdoʊt/

antidote

解毒剤

Meaning

A substance that neutralizes the effects of a poison; something that relieves or counteracts.

Example

The doctor quickly administered an antidote to the snake venom.

医者は素早く蛇の毒に解毒剤を投与した。

C1 noun, verb /ˈɔːtɒpsi/

autopsy

検死

Meaning

a post-mortem examination to discover the cause of death or the extent of disease

Example

The autopsy revealed that the victim had died from poisoning.

検死は、犠牲者が中毒で亡くなったことを明らかにしました。

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 noun /ˈænvɪl/

anvil

鉄製の金床

Meaning

A heavy iron block used by blacksmiths for hammering and shaping metal.

Example

The blacksmith placed the hot iron on the anvil.

鍛冶屋は熱い鉄をアンヴィルに置きました。

C1 noun ɔːˈstɛr.ɪ.ti

austerity

緊縮

Meaning

Simple and disciplined lifestyle, avoiding luxury.

Example

The government implemented austerity measures to reduce expenses.

政府は支出を削減するために緊縮策を実施した。

C1 verb /əˈpiːz/

appease

なだめる / 満たす

Meaning

to calm or pacify someone by meeting their demands

Example

The manager tried to appease the angry customer.

マネージャーは怒っている顧客をなだめようとしました。

C1 noun /əˈvɜːrʒən/

aversion

嫌悪

Meaning

a strong feeling of dislike or unwillingness towards something

Example

She has a strong aversion to smoking.

彼女は喫煙に強い嫌悪感を持っています。

C1 noun /aɪ/

aye

賛成

Meaning

an affirmative vote or expression of agreement

Example

The committee voted aye on the proposal.

委員会は提案に賛成票を投じました。

C1 adjective /əˈɡæst/

aghast

驚愕

Meaning

filled with shock or horror

Example

The audience was aghast at the tragic scene.

観客はその悲劇的なシーンに驚愕していた。

C1 verb /əˈkrɛdɪt/

accredit

認証

Meaning

to officially recognize, authorize, or approve someone or something

Example

The university is accredited by the national education board.

その大学は国の教育委員会から認定されています。

C1 noun /æbˈdʌk.ʃən/

abduction

誘拐

Meaning

the act of taking someone away illegally by force; kidnapping

Example

The police are investigating the abduction of the child.

警察は子供の誘拐事件を調査している。

C1 noun /ˈælɪbaɪ/

alibi

アリバイ

Meaning

A claim or piece of evidence that one was elsewhere when an act, typically a crime, was committed.

Example

She had a strong alibi that proved she was at the cinema during the theft.

彼女は盗難の際に映画館にいたことを証明する強力なアリバイを持っていました。

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 adverb /əˈnjuː/

anew

新たに

Meaning

In a new or different way; once more.

Example

After the failure, she decided to start her life anew.

失敗後、彼女は新たに人生を始めることを決意した。

C1 noun /ədˈhɪərənt/

adherent

支持者

Meaning

a person who supports or follows a particular belief, cause, or leader

Example

He is a strong adherent of democratic values.

彼は民主的な価値観の強力な支持者です。

C1 noun /ˌɑːr.kəˈpɛl.əˌɡoʊ/

archipelago

群島

Meaning

A group of islands clustered together in a body of water.

Example

Indonesia is an archipelago with thousands of islands.

インドネシアは何千もの島々が集まった群島です。

C1 noun /ˈænti ˈeəkræft ɡʌn/

Anti-aircraft-gun

対空砲

Meaning

a weapon designed to attack aircraft from the ground

Example

The anti-aircraft gun was positioned to defend the military base.

対空砲は軍事基地を守るために配置されました。

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 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 /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 noun, adjective /ˌæntiˈsɛptɪk/

antiseptic

Meaning

A substance that prevents the growth of disease-causing microorganisms; clean and free from germs.

Example

The nurse applied an antiseptic to the wound.

C1 verb /əˈluːd/

allude

ほのめかす

Meaning

To refer to something indirectly or casually.

Example

The professor alluded to Shakespeare during the lecture.

教授は講義中にシェイクスピアに言及した。

C1 noun ˈælərdʒən

allergen

アレルギー反応を引き起こす物質

Meaning

A substance that causes an allergic reaction.

Example

Pollen is a common allergen that affects many people.

花粉は多くの人々に影響を与える一般的なアレルゲンです。

C1 verb əˈnaɪ.ə.leɪt

annihilate

完全に破壊する

Meaning

Destroy utterly; obliterate; reduce to nothing.

Example

The explosion annihilated the entire village.

爆発は村全体をアニヒレートしました。

C1 noun əˈɡrɛriən səˈsaɪətiz

agrarian societies

農業社会

Meaning

Societies based on agriculture and farming as the primary economic activity.

Example

Agrarian societies emerged from a need for stable food sources.

農業社会は安定した食料源の必要性から生まれました。

C1 adjective /ɔːˈtʌmnəl/

autumnal

秋の

Meaning

relating to or characteristic of autumn; occurring in autumn

Example

The autumnal colors of red and gold filled the forest.

赤と金の秋の色が森を満たした。

C1 noun /əˌfɪl.iˈeɪ.ʃən/

affiliation

提携

Meaning

The state or process of affiliating or being affiliated; a connection or association.

Example

His affiliation with the company lasted for a decade.

彼の会社との提携は10年間続いた。

C1 adjective /ˌæntiˈsleɪvəri/

antislavery

奴隷制度反対

Meaning

Opposed to the practice or system of slavery.

Example

The antislavery movement gained momentum in the 19th century.

奴隷制度反対運動は19世紀に勢いを増した。

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 verb /əˈpɔːl/

appall

驚かす

Meaning

To shock or horrify someone with something unpleasant or bad.

Example

The cruelty of the crime appalled the entire community.

犯罪の残酷さがコミュニティ全体を驚かせた。

C1 noun ˈæltruɪzəm

altruism

利他主義、他者の幸福に対する無私の配慮

Meaning

The belief in or practice of disinterested and selfless concern for the well-being of others.

Example

His altruism motivated others to volunteer.

彼の利他主義は他の人々にボランティアをするように促した。

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 /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 /æmˈniːʒə/

amnesia

健忘症

Meaning

A partial or total loss of memory, usually caused by injury, illness, or psychological trauma.

Example

After the accident, she suffered from amnesia and could not remember her own name.

事故後、彼女はアムネジアに苦しみ、自分の名前を思い出せなかった。

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 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 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 noun /ˌædməˈnɪʃən/

admonition

警告

Meaning

a firm warning or reprimand; gentle or earnest advice

Example

He received an admonition for his careless work.

彼は不注意な仕事のために警告を受けました。

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。

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 adjective ɔːɡˈmen.tɪd

augmented

拡張された、改善された、広げられた

Meaning

having been made greater in size or value.

Example

The new software provided augmented reality features.

新しいソフトウェアは拡張現実の機能を提供しました。

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 /ˈɑːrdər/

ardor

情熱、熱意

Meaning

Great enthusiasm or passion.

Example

She spoke with ardor about her new project.

彼女は新しいプロジェクトについて情熱をもって話していました。

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 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 noun ænˈtɪk.wə.ti

antiquity

古代

Meaning

The ancient past, especially the period of classical and other human civilizations before the Middle Ages.

Example

The ruins are a reminder of the city's antiquity.

遺跡はその都市の古代を思い出させるものです。

C1 noun /ˈæd.vənt/

advent

到来

Meaning

The arrival of a notable person, thing, or event.

Example

The advent of the internet changed the way people communicate.

インターネットの到来は人々のコミュニケーション方法を変えました。

C1 adverb /əˈlɒft/

aloft

高く

Meaning

Up in or into the air; overhead.

Example

The kite was flying aloft in the clear sky.

凧は晴れた空に高く飛んでいた。

C1 noun /ˈæptɪˌtjuːd/

aptitude

適性

Meaning

a natural ability or talent to do something well

Example

She has a strong aptitude for learning new languages.

彼女は新しい言語を学ぶのに強い適性を持っています。

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 noun /ˌædʒ.ɪˈteɪ.ʃən/

agitation

動揺

Meaning

a state of nervousness, excitement, or unrest; or action of stirring up public concern

Example

There was visible agitation among the crowd.

群衆の中には明らかな動揺がありました。

C1 noun /ˈɔːtəkræt/

autocrat

独裁者

Meaning

A ruler with absolute power.

Example

The autocrat controlled the country with an iron fist.

そのオートクラットは鉄の拳で国を支配していました。

C1 adjective /ænˈtɪriər/

Aristocrat

貴族; 高貴な血筋を持つ人

Meaning

a member of the aristocracy; a person of noble rank or birth

Example

The aristocrat lived in a magnificent castle.

そのアリストクラットは豪華な城に住んでいました。

C1 verb /əˈfɪliˌeɪt/

affiliate

提携する

Meaning

to officially attach or connect (a group or organization) to a larger body

Example

The school is affiliated with the local university.

その学校は地元の大学と提携しています。

C1 noun ˌæprɪˈhɛnʃən

apprehension

不安

Meaning

Anxiety or fear that something bad or unpleasant will happen.

Example

There is an apprehension about the depletion of fish stocks.

魚のストックの減少についての不安があります。

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 verb /əˈkleɪm/

acclaim

称賛する

Meaning

to praise enthusiastically and publicly

Example

The audience acclaimed the actor for his outstanding performance.

観客はその俳優の素晴らしい演技に喝采を送った。

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。