B2 noun /ˈeɪkər/

acre

Meaning

a unit of land area equal to 4,840 square yards (about 4,047 square meters)

Example

The farmer owns five acres of fertile land.

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。

A2 noun /əˈpɪə.rəns/

Appearance

外見; 出現; 表れ

Meaning

the way that someone or something looks; an act of performing or participating in a public event

Example

Her appearance at the event surprised everyone.

イベントでの彼女の登場は皆を驚かせた。

B2 noun ˌæd.æpˈteɪ.ʃən

adaptation

適応

Meaning

The action or process of adapting or being adapted.

Example

Adaptation to climate change is critical for resilience.

気候変動への適応は回復力にとって重要です。

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。

B2 verb /əˈlaɪn/

align

整列する / 直線にする

Meaning

To arrange things in a straight line; to adjust or bring into proper relation or agreement.

Example

The manager asked the team to align their goals with the company's mission.

マネージャーはチームに目標を会社のミッションに合わせるように言いました。

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 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。

C2 noun ˌæɡ.roʊˈiː.koʊˌsɪs.təm

agroecosystem

農業生態系

Meaning

An ecological system centered on agricultural activities and processes.

Example

A healthy agroecosystem improves soil fertility.

健康な農業生態系は土壌の肥沃度を改善します。

C1 verb /əˈlʊər/

allure

魅力

Meaning

to attract or tempt someone with something desirable; to entice

Example

The beautiful garden allured visitors from far away.

美しい庭園が遠くから訪問者を魅了しました。

C1 noun /ˈænərki/

anarchy

無政府状態

Meaning

a state of disorder due to the absence or failure of government or authority

Example

The collapse of the regime led to anarchy in the streets.

政権の崩壊は街中に無政府状態を引き起こした。

A2 verb /eɪm/

aim

狙う

Meaning

to direct a weapon, object, or effort at a target; to intend or plan

Example

He aimed the ball at the goal.

彼はゴールに向かってボールを狙った。

C1 noun /ænˈtɪθəsɪs/

antithesis

アンチテーゼ

Meaning

A person, thing, or idea that is the direct opposite of another; a rhetorical device contrasting opposing ideas in parallel structure.

Example

Love is the antithesis of hate.

愛は憎しみのアンチテーゼです。

B1 adjective /ænˈtiːk/

Antique

アンティーク; 古い;

Meaning

old and valuable; belonging to ancient times

Example

She collected antique furniture from the Victorian era.

彼女はヴィクトリア時代のアンティーク家具を集めました。

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。

C2 adjective /ˌækrəˈmætɪk/

achromatic

無彩色

Meaning

without color; free from color

Example

The designer chose an achromatic palette of black, white, and gray.

デザイナーは黒、白、灰色の無彩色なパレットを選びました。

B2 noun /ˈænsestər/

Ancestor

先祖

Meaning

a person, typically one more remote than a grandparent, from whom one is descended

Example

She researched her family tree to learn about her ancestors.

彼女は家系図を調べて、先祖について学びました。

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。

C2 adjective/adverb /ˌæ.prəˈpoʊ/

apropos

適切

Meaning

Appropriate to the situation; relevant. As an adverb, it means 'with reference to' or 'regarding'.

Example

His comments were not apropos of the discussion.

彼のコメントは議論には適切ではなかった。

B1 adjective /ədˈvænst/

advanced

進んだ

Meaning

highly developed or complex

Example

He is studying an advanced level of mathematics.

彼は高度な数学のレベルを学んでいます。

B2 verb /ˈɔːltər/

alter

変更する

Meaning

to change or modify something slightly but significantly

Example

She decided to alter her dress to make it fit better.

彼女はドレスをより良くするために変更することを決めました。

A2 verb /əˈvɔɪd/

avoid

避ける

Meaning

To keep away from or stop oneself from doing something.

Example

He tries to avoid junk food.

彼はジャンクフードを避けようとしています。

C2 noun /əˈspɜːr.ʒən/

aspersion

中傷

Meaning

An attack on the reputation or integrity of someone.

Example

He cast an aspersion on her character.

彼は彼女の性格に中傷をしました。

C1 verb /əˈnʌl/

annul

取り消す

Meaning

to declare something legally invalid or cancel it

Example

The court decided to annul the marriage due to fraud.

裁判所は詐欺のために結婚を取り消すことを決定しました。

C1 verb /əˈpɛnd/

append

追加する

Meaning

to add something as an attachment or supplement, usually at the end of a document or list

Example

She decided to append a note to the end of the report.

彼女は報告書の最後にメモを追加することに決めました。

A2 noun /ˈeə.ri.ə/

area

Meaning

a particular region or space; the extent of a surface

Example

This area is known for its beautiful parks.

C1 noun /ˈæmfɪˌθiətər/

amphitheater

円形劇場

Meaning

A large open circular or oval building with rising tiers of seats, used for public events.

Example

The concert was held in an ancient amphitheater.

コンサートは古代の円形劇場で行われました。

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。

B1 noun /əˈkaʊntənt/

accountant

会計士

Meaning

a person whose job is to keep or check financial accounts

Example

The accountant prepared the financial reports for the company.

会計士は会社の財務報告書を準備しました。

B2 adverb /əˈten.tɪv.li/

Attentively

注意深く

Meaning

with careful attention; in a focused manner

Example

She listened attentively to her teacher's instructions.

彼女は先生の指示を注意深く聞いた。

C2 verb /ˈædjʊˌleɪt/

adulate

過剰に賛美する

Meaning

to praise or flatter excessively

Example

The fans adulated the actor after his performance.

ファンたちは彼のパフォーマンスの後、俳優を賛美しました。

B2 noun /ˈɑː.mənd/

Almond

アーモンド

Meaning

edible seed of the almond tree

Example

Almonds are a healthy snack rich in protein and good fats.

アーモンドは、タンパク質と良質な脂肪が豊富な健康的なスナックです。

A2 noun ækt

act

法律

Meaning

A written law passed by a legislative body.

Example

The act was passed in 2023.

その法律は2023年に可決されました。

C1 adjective /ɑːrˈkeɪn/

arcane

難解な

Meaning

understood by few; mysterious or secret

Example

The professor’s lecture was full of arcane details that only specialists could follow.

教授の講義は専門家だけが理解できるようなアーケインな詳細で満ちていました。

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。

B2 noun /ˈæktɪˌvɪzəm/

activism

アクティビズム

Meaning

The policy or action of using vigorous campaigning to bring about political or social change.

Example

Her environmental activism inspired many young people to take action.

彼女の環境アクティビズムは多くの若者に行動を促した。

C2 noun /ˈæmjʊlət/

Amulet

お守り; タリスマン

Meaning

an ornament or small piece of jewelry thought to give protection against evil, danger, or disease

Example

She wore a silver amulet around her neck for good luck.

彼女は幸運のために首に銀のタリスマンを身につけていました。

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。

B2 noun /əˈsʌmpʃən/

Assumption

仮定

Meaning

a thing that is accepted as true without proof; a supposition

Example

His assumption about the weather proved to be wrong.

天気に関する彼の仮定は間違っていることが証明されました。

C2 adjective /æbˈstiːmiəs/

abstemious

節制

Meaning

not allowing oneself much food or drink; marked by moderation

Example

She lived an abstemious life, avoiding all luxuries.

彼女は節制した生活を送り、すべての贅沢を避けた。

B2 verb əˈlaɪn.ɪŋ

aligning

整列する

Meaning

Placing or arranging things in a straight line or in correct relative positions.

Example

Aligning education with global standards is vital.

教育を世界標準に整列させることは重要です。

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。

B2 noun /ˈænθəm/

anthem

国歌

Meaning

A song that is identified with a particular group, movement, or nation, often expressing pride or unity.

Example

The national anthem was played before the football match.

サッカーの試合の前に国歌が演奏されました。

C2 noun /əˌnʌn.siˈeɪ.ʃən/

annunciation

発表、良い知らせ

Meaning

The announcement of something; in Christianity, the announcement by the angel Gabriel to Mary that she would conceive Jesus.

Example

The church celebrated the Feast of the Annunciation with a special service.

教会は特別なサービスでアナンシエーションの祝祭を祝いました。

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。

B1 noun /ˈeɪ.dʒənt/

agent

エージェント

Meaning

A person who acts on behalf of another person or organization.

Example

The real estate agent showed us several houses.

不動産エージェントは私たちにいくつかの家を見せてくれました。

C2 noun (plural) /ˈɔːspɪsɪz/

auspices

後援

Meaning

Patronage, support, or guidance, often used in the phrase 'under the auspices of'.

Example

The conference was held under the auspices of the United Nations.

会議は国連の後援の下で行われました。

C2 adjective /əˈluːviəl/

alluvial

沖積の

Meaning

Relating to or derived from alluvium (loose soil or sediment deposited by rivers).

Example

The farmers cultivate crops on the fertile alluvial plains.

農民たちは肥沃な沖積平原で作物を栽培します。

B2 noun /əˈbɔːrʃən/

abortion

Meaning

The deliberate termination of a human pregnancy, usually performed during the first 28 weeks.

Example

The debate about abortion continues to divide public opinion.

B2 noun /ədˈmɪnɪstreɪtər/

administrator

Meaning

a person responsible for running or managing an organization or system

Example

The school administrator implemented new policies for students.

C1 verb /ˈeɪ.li.ə.neɪt/

alienate

疎外する

Meaning

To make someone feel isolated or estranged; to cause someone to become unfriendly.

Example

His rude behavior alienated many of his friends.

彼の失礼な行動は多くの友人を遠ざけた。

C2 noun /əˈsper.ɪ.ti/

asperity

Meaning

Harshness of tone, manner, or surface.

Example

She spoke with asperity when she was interrupted.

B1 noun /ədˌmɪn.ɪˈstreɪ.ʃən/

Administration

行政; 管理

Meaning

the process of managing or organizing something; a government or organization

Example

The university administration announced new policies.

大学の行政は新しいポリシーを発表しました。

C1 adjective /əˈvɜːrs/

averse

嫌悪

Meaning

having a strong dislike of or opposition to something

Example

He was averse to taking unnecessary risks.

彼は不必要なリスクを取ることに嫌悪感を抱いていた。

C2 noun /ˈæntɪfɒn/

antiphon

アンティフォン

Meaning

a short chant or verse sung responsively in Christian worship, typically sung before or after a psalm or canticle

Example

The choir sang the antiphon before beginning the main hymn.

合唱団は主の賛歌を始める前にアンティフォンを歌いました。

C2 noun /ˈæpəplɛksi/

apoplexy

脳卒中や極端な怒りによる突然の意識喪失や制御の喪失

Meaning

A sudden loss of consciousness or control due to stroke or extreme anger.

Example

The old man nearly had apoplexy when he heard the shocking news.

その老人は衝撃的なニュースを聞いてほとんどアポプレキシーを起こしました。

C2 noun /ˈɑːriə/

aria

ソロの歌唱曲

Meaning

a solo vocal piece with instrumental accompaniment, typically in an opera

Example

The soprano performed a moving aria during the second act.

ソプラノは第2幕で感動的なアリアを披露しました。

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。

B1 adverb /əˈperəntli/

Apparently

明らかに;

Meaning

seemingly; as far as one knows or can see; clearly; evidently

Example

Apparently, the meeting has been postponed to next week.

明らかに、会議は来週に延期されたようです。

C2 adverb /əˈsʌndər/

asunder

バラバラに

Meaning

into separate parts; apart

Example

The ancient empire was torn asunder by war.

古代の帝国は戦争でバラバラにされてしまった。

C2 noun /ˈæpədʒiː/

apogee

頂点

Meaning

the highest or most distant point; the climax or peak of something

Example

The empire reached its apogee during the 18th century.

帝国は18世紀にその頂点に達しました。

A1 adverb /ɔːlˈredi/

Already

すでに; もう; 前に

Meaning

before now; by this time; previously

Example

I have already finished my homework for today.

私は今日の宿題をすでに終わらせました。

C2 adjective /ˈæprəbəˌtɔːri/

approbatory

称賛の

Meaning

expressing approval or praise

Example

The teacher gave an approbatory nod after reading the essay.

教師はエッセイを読んだ後、称賛の意を込めてうなずいた。

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。

B2 noun /ˈæŋkər/

Anchor

アンカー

Meaning

a heavy object used to moor a vessel to the sea bottom; a person or thing that provides stability or confidence

Example

The ship dropped its anchor in the harbor.

船は港にアンカーを下ろしました。

C2 verb /æbˈdʒʊər/

abjure

放棄する

Meaning

to formally renounce or give up a belief, cause, or claim

Example

He abjured his allegiance to the old regime.

彼は古い政権への忠誠を放棄した。

C2 noun /ˈɑːrɡoʊ/

argot

専門用語

Meaning

the specialized vocabulary or jargon of a particular group, especially one with a common interest or occupation

Example

The thieves communicated in an argot that outsiders could not understand.

泥棒たちは外部の人々が理解できないアルゴでコミュニケーションを取った。

C1 noun /ˈælɔɪ/

alloy

合金

Meaning

A mixture of metals or a metal combined with another element.

Example

Bronze is an alloy of copper and tin.

ブロンズは銅とスズの合金です。

C2 noun /ˈɑːm.lət/

Armlet

アームレット

Meaning

a band worn around the upper arm as an ornament

Example

The traditional dancer wore golden armlets that gleamed in the spotlight.

伝統的なダンサーは、スポットライトの中で輝く金色のアームレットを着けていました。

C2 verb /əˈbʌt/

abut

隣接する

Meaning

to be next to or share a border with

Example

The park abuts the river on the north side.

公園は北側で川と隣接しています。

C1 verb /əˈseɪl/

assail

攻撃する

Meaning

to attack violently, either physically or with words

Example

The politician was assailed with difficult questions.

政治家は難しい質問で攻撃された。

C2 noun /əˈbaɪdəns/

abidance

遵守

Meaning

the act of following, accepting, or complying with something

Example

Her abidance by the rules impressed the committee.

規則を守ることが委員会に印象を与えました。

B1 adjective /ˈɔːkwəd/

awkward

気まずい

Meaning

causing or feeling embarrassment; difficult to deal with

Example

There was an awkward silence after his joke.

彼のジョークの後、気まずい沈黙がありました。

B1 noun /ˈæŋɡl/

angle

角度

Meaning

The space between two intersecting lines or surfaces at the point where they meet.

Example

The teacher explained how to measure an angle in geometry.

先生は数学で角度を測る方法を説明しました。

A2 adjective ˈæktɪv

active

積極的

Meaning

Engaging or ready to engage in physically energetic pursuits; characterized by energetic work, participation, etc.

Example

Active participation in education is vital for progress.

教育における積極的な参加は進歩にとって重要です。

B1 noun /ˈæŋkəl/

ankle

足首

Meaning

the joint connecting the foot with the leg

Example

He twisted his ankle while playing football.

彼はサッカーをしているときに足首を捻った。

A2 adverb /əˈbrɔːd/

Abroad

海外で

Meaning

in or to a foreign country

Example

She decided to study abroad for a year.

彼女は1年間海外で学ぶことを決めました。

B2 verb /əˈraɪz/

arise

現れる

Meaning

to begin to exist or to happen

Example

Problems may arise if you don't plan ahead.

計画を立てないと問題が現れることがあります。

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。

B1 noun /ˈɛər.kræft/

aircraft

航空機

Meaning

A vehicle, such as an airplane or helicopter, that can fly in the air.

Example

The military aircraft flew over the city.

軍用機が街の上を飛びました。

B2 verb /əˈlɛdʒ/

allege

主張する

Meaning

to claim or assert something, typically without proof

Example

The witness alleged that the man was at the crime scene.

証人はその男性が犯罪現場にいたと主張した。

B1 noun ˌɑː.tɪˈfɪʃ.əl ɪnˈtɛl.ɪ.dʒəns

artificial intelligence

人工知能

Meaning

The theory and development of computer systems able to perform tasks normally requiring human intelligence.

Example

Artificial intelligence is revolutionizing education through smart tutoring.

人工知能はスマートチュータリングを通じて教育を革新しています。

C1 noun ˌeə.rəʊ.daɪˈnæm.ɪks

aerodynamics

Meaning

The study of the properties of moving air and the interaction between the air and solid bodies moving through it.

Example

The aerodynamics of an aircraft determines its speed and efficiency.

C1 adjective ˌæv.ɒ̃ˈɡɑːd

avant-garde

前衛的

Meaning

New and experimental; characterized by departure from or rejection of accepted standards.

Example

Avant-garde designs redefine the dining experience.

アヴァン・ガルドデザインはダイニング体験を再定義します。

C2 noun /əˈplɒm/

aplomb

Meaning

Complete and confident self-assurance or poise.

Example

She handled the difficult questions with aplomb.

B2 noun /ˈɑːr.tɪ.zən/

Artison

職人

Meaning

a skilled craftsperson who makes things by hand

Example

The artisan created a beautiful wooden sculpture.

職人は美しい木彫りの彫刻を作りました。

C2 verb /əˈvʌls/

avulse

引き裂く

Meaning

to tear away or separate forcibly, especially in medical or geological contexts

Example

The surgeon had to avulse the damaged tissue during the operation.

外科医は手術中に損傷した組織を引き裂かなければならなかった。

C2 noun /ˈæf.ə.rɪ.zəm/

aphorism

Meaning

a short, witty saying that expresses a general truth or principle

Example

He began his speech with an aphorism about life and success.

C2 noun /ˈɑːrtləsnəs/

artlessness

素朴さ, 自然さ

Meaning

The quality of being natural and simple without deceit or pretension.

Example

Her artlessness made her beloved by all.

彼女のartlessnessは、彼女をみんなに愛される存在にした。

B2 verb /əˈbaɪd/

abide

従う

Meaning

to accept or act in accordance with; to endure; to dwell

Example

I will abide by the rules of the company.

私は会社のルールに従います。

A1 adverb /ˈɔːl.weɪz/

Always

いつも; 永遠に; 常に

Meaning

at all times; on all occasions; forever

Example

She always arrives early to work.

彼女はいつも仕事に早く到着します。

B2 noun /ɑːrtʃ/

arch

アーチ

Meaning

a curved symmetrical structure spanning an opening and typically supporting the weight above it

Example

The ancient arch still stands in the city center.

古代のアーチは今でも街の中心に立っています。

B2 noun /ˈæməzɒn/

amazon

力強い女性

Meaning

A tall, strong, or powerful woman.

Example

She fought like an amazon in the competition.

彼女は競技でアマゾンのように戦った。

C1 verb /eɪl/

ail

病む

Meaning

to be ill or suffer from a physical or mental problem; to trouble or afflict

Example

She has been ailing since last winter.

彼女は去年の冬から病んでいます。

A2 verb /ˈɑːrɡjuː/

argue

議論する

Meaning

to have a disagreement; to present reasons for or against

Example

They often argue about politics.

彼らはよく政治について議論します。

B2 noun /ˈæɡ.ə.ni/

Agony

極度の肉体的または精神的苦痛; 激しい痛み

Meaning

extreme physical or mental suffering; intense pain

Example

He was in agony after the accident.

事故後、彼は激しい痛みに苦しんでいた。

C1 verb /əˈtoʊn/

atone

償う

Meaning

to make amends for a wrong or injury; to make reparation

Example

He tried to atone for his mistakes by helping others.

彼は他の人を助けることで自分の過ちを償おうとした。

B1 adjective /əˈtætʃt/

attached

添付された

Meaning

joined or fastened to something; emotionally connected or fond of someone or something

Example

The file is attached to the email.

ファイルはメールに添付されています。

B2 noun /əˈsɛnt/

ascent

Meaning

The act of rising or climbing to a higher position or level.

Example

The climbers began their ascent to the mountain peak at dawn.

B1 adjective /ɑːrmd/

armed

武装した

Meaning

equipped with or carrying weapons

Example

The bank was robbed by armed men.

銀行は武装した男たちに襲われた。

B2 noun/verb /eɪp/

ape

尾のない猿に似た大型の霊長類 / まねする

Meaning

a large primate similar to a monkey but without a tail; as a verb, to imitate or mimic

Example

Children often ape the behavior of adults.

子供たちは大人の行動をよくまねします。

C2 noun /ˈæpəˌlɔːɡ/

apologue

道徳的な物語

Meaning

a short moral story or fable intended to teach a lesson

Example

The teacher used an old apologue to explain honesty to the children.

教師は、子供たちに誠実さを説明するために古い道徳的な物語を使いました。

B2 adjective /əˈɡriːəbl/

Agreeable

快適な; 楽しい; 魅力的な; 同意する気持ち

Meaning

pleasant; enjoyable; delightful; willing to agree

Example

The weather is very agreeable today.

今日はとても快適な天気です。

B2 verb /əˈveɪl/

avail

利用する

Meaning

to make use of something; to be of use or benefit

Example

You should avail yourself of this opportunity.

この機会を利用すべきです。

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。

C2 adjective /ˈæməˌtɔːri/

amatory

愛に関する

Meaning

Relating to or expressing sexual love.

Example

The poet’s verses were filled with amatory themes.

詩人の詩は愛に関するテーマで満たされていました。

C2 verb /ˈæktʃueɪt/

actuate

作動させる

Meaning

to put into action or motion; to motivate or activate

Example

The engineer actuated the machine with a simple switch.

エンジニアは簡単なスイッチで機械を作動させました。

C1 noun /əˈliː.dʒəns/

allegiance

忠誠

Meaning

Loyalty or commitment of a subordinate to a superior or of an individual to a group or cause.

Example

Soldiers take an oath of allegiance to their country.

兵士たちは自国に忠誠の誓いを立てます。

B2 noun /æŋˈzaɪ.ə.ti/

anxiety

不安や神経質

Meaning

A feeling of worry, nervousness, or unease about something with an uncertain outcome.

Example

Meditation helps reduce anxiety and stress.

瞑想は不安とストレスを軽減するのに役立ちます。

C2 noun /əˈpɜːrtənəns/

appurtenance

付属物 / 付加部分

Meaning

an accessory or supplementary part of something

Example

The garage is an appurtenance of the main house.

ガレージはメインハウスの付属物です。

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。

B2 adjective /ænˈdʒelɪk/

angelic

天使のような

Meaning

Like or characteristic of an angel; pure, kind, or innocent.

Example

The child had an angelic smile.

その子供は天使のような笑顔をしていました。

B2 adjective /əˈlɑːrmɪŋ/

alarming

警戒すべき

Meaning

Worrying or disturbing; causing concern or fear.

Example

The unemployment rate among youth is alarming.

若者の失業率は警戒すべきです。

B1 adjective /ɑːrˈtɪstɪk/

artistic

芸術的

Meaning

having or revealing natural creative skill

Example

She has an artistic sense of design.

彼女はデザインに対するアーティスティックな感覚を持っています。

B2 noun /ˌɔːltəˈreɪʃən/

alteration

変更

Meaning

a change or modification made to something

Example

The tailor made an alteration to the suit.

仕立屋はスーツに変更を加えました。

C1 verb /əˈbaʊnd/

abound

豊富にある

Meaning

To exist in large numbers or amounts.

Example

Opportunities abound in the field of technology.

テクノロジーの分野では機会が豊富にあります。

B1 noun /ˈælkəhɒl/

alcohol

Meaning

A colorless volatile liquid that is the intoxicating constituent of wine, beer, spirits, and other drinks.

Example

Too much alcohol can damage your liver.

C2 adjective /ˈæfərənt/

afferent

求心

Meaning

carrying impulses toward a central organ or part, especially toward the brain or spinal cord

Example

Afferent nerves carry signals from the body to the brain.

求心神経は体から脳に信号を運びます。

C2 adjective /əˈluːsɪv/

allusive

暗示的

Meaning

Making indirect references or hints; suggestive without being explicit.

Example

The novel is full of allusive passages that point to classical literature.

その小説は古典文学を指し示す暗示的な部分で満ちている。

C2 adjective /əˈɡeɪp/ or /əˈɡɑːp/

agape

驚愕

Meaning

With the mouth wide open in surprise or wonder.

Example

She stood agape at the breathtaking view.

彼女は息を呑むような景色に驚いて口を開けたまま立っていた。

B1 adjective ˌɑː.tɪˈfɪʃ.əl

artificial

人工の

Meaning

Made by humans; not occurring naturally

Example

Artificial systems are transforming industries.

人工システムは産業を変革しています。