B2 noun /ˈɔːkʃən/

Auction

オークション

Meaning

a public sale in which goods or property are sold to the highest bidder

Example

The antique furniture was sold at an auction last weekend.

アンティーク家具は先週末のオークションで売られました。

B1 verb /əˈlɑːrm/

alarm

驚かせる

Meaning

to warn of danger; to frighten or disturb

Example

The loud noise alarmed the residents.

大きな音が住民を驚かせた。

B2 noun /əˈdʒʌstmənt/

adjustment

Meaning

a small change made to improve something or make it work better

Example

The doctor made an adjustment to the patient’s medication.

B1 adjective /ədˈvɛnʧərəs/

adventurous

冒険的な

Meaning

Willing to take risks or try out new methods, ideas, or experiences.

Example

They participated in adventurous activities like kayaking and hiking.

彼らはカヤックやハイキングなどの冒険的な活動に参加しました。

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。

B2 noun /ˈɑːrm.pɪt/

Armpit

脇の下

Meaning

the hollow area under the arm where it joins the shoulder

Example

He applied deodorant to his armpit.

彼は脇の下にデオドラントを塗った。

B2 noun /ˌɑːr.kiˈɑː.lə.dʒi/

archeology

考古学

Meaning

the study of human history and prehistory through excavation and analysis of artifacts and structures

Example

She decided to study archeology to learn about ancient civilizations.

彼女は古代文明について学ぶために考古学を学ぶことに決めました。

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。

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。

C2 adjective /æbˈstruːs/

abstruse

難解

Meaning

Difficult to understand; obscure.

Example

The abstruse nature of the philosophical debate left many confused.

哲学的議論の難解な性質は多くの人々を困惑させた。

C2 verb /əˈkuːtər/

accouter

装備する

Meaning

to equip or outfit, typically with military or ceremonial attire

Example

The soldiers were accoutered in full battle gear.

兵士たちは完全な戦闘装備を整えていた。

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。

A2 noun /ˌænɪˈvɜːrsəri/

anniversary

記念日

Meaning

the yearly recurrence of a date marking a past event

Example

They celebrated their wedding anniversary with a dinner.

彼らは結婚記念日をディナーで祝いました。

B2 noun /eɪk/

Ache

痛み

Meaning

a continuous or prolonged dull pain in a part of one's body

Example

He had a terrible headache after working late.

彼は遅くまで働いた後、ひどい頭痛に悩まされた。

B2 verb əˈteɪnd

attained

達成した

Meaning

Succeeded in achieving (something that one desires and has worked for); reached a specified age, size, or amount.

Example

The region attained remarkable progress.

その地域は顕著な進展を達成しました。

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。

B1 noun /ˈætməsˌfɪər/

Atmosphere

大気圏

Meaning

the envelope of gases surrounding the earth or another planet; the pervading tone or mood of a place

Example

The atmosphere protects us from harmful solar radiation.

大気圏は有害な太陽放射線から私たちを守ってくれます。

B2 adjective /əˈkuːstɪk/

acoustic

Meaning

relating to sound or the sense of hearing; not amplified by electrical means

Example

We recorded an acoustic version of the song in a quiet room.

B2 adjective /əˈfekʃənət/

Affectionate

愛情深い; 思いやりのある; 優しい; 愛情を示す

Meaning

loving; caring; tender; showing affection

Example

She is very affectionate towards her children.

彼女は子供たちにとても愛情深いです。

A1 noun /ˈeɪprɪl/

april

4月

Meaning

the fourth month of the year in the Gregorian calendar

Example

April is known for its pleasant spring weather.

4月は心地よい春の天気で知られています。

B1 noun, verb /eɪd/

aid

援助

Meaning

help or support, typically of a practical nature

Example

The volunteers provided aid to the flood victims.

ボランティアは洪水の被害者に援助を提供しました。

C2 adjective /eɪˈrɪðmɪk/

arrhythmic

不整脈

Meaning

Lacking a regular rhythm or beat.

Example

The patient had an arrhythmic heartbeat.

患者は不整脈を持っていた。

C2 noun /ˈɑːrbər/

arbor

木々や蔓植物によって作られた日陰の庭の避難所

Meaning

a shady garden shelter formed by trees, climbing plants, or latticework

Example

They rested under the arbor covered with roses.

彼らはバラで覆われたアーボーの下で休憩していました。

C2 verb /əˈdʒʌdʒ/

adjudge

判決する

Meaning

to consider or declare officially in a legal or formal manner

Example

He was adjudged guilty by the court.

彼は裁判所によって有罪とされました。

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。

A2 adjective /əˈtræk.tɪv/

Attractive

魅力的

Meaning

pleasing or appealing to the senses; having a quality that draws interest

Example

The garden looks very attractive in spring.

春には庭がとても魅力的に見えます。

A2 noun /ˈeɪn.dʒəl/

Angel

天使

Meaning

a spiritual being believed to act as an attendant, agent, or messenger of God

Example

She looked like an angel in her white dress.

彼女は白いドレスで天使のように見えた。

B1 adjective /ˈæn.ju.əl/

annual

年次

Meaning

happening once every year

Example

The company holds an annual meeting for all its shareholders.

会社は毎年、すべての株主のために年次総会を開催します。

A1 determiner, pronoun, adverb /ɔːl/

all

すべて

Meaning

the whole quantity or extent of something; every one of something

Example

She spent all her money on books.

彼女はすべてのお金を本に使いました。

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 /ˈeɪ.peks/

apex

頂点, apex

Meaning

The highest point or peak of something; the top or summit.

Example

He reached the apex of his career.

彼は自分のキャリアの頂点に達した。

B1 verb /əˈpruːv/

approve

承認する

Meaning

to officially agree to or accept something; to give permission

Example

The committee will approve the new policy tomorrow.

委員会は明日新しい方針を承認します。

C1 noun /əˈpærəl/

apparel

衣服

Meaning

Clothing, especially formal or special clothes.

Example

The store specializes in wedding apparel.

その店は結婚式の衣服を専門に扱っています。

C2 noun /əˈkʌmpənɪst/

accompanist

伴奏者

Meaning

A person who plays a musical instrument to support a singer or another musician.

Example

The pianist served as the accompanist for the singer during the concert.

コンサート中にピアニストは歌手の伴奏者として活躍しました。

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。

B2 adverb /ˌɑːrtɪˈfɪʃəli/

Artificially

人工的に;

Meaning

by artificial means; not naturally; in a fake manner

Example

The lake was artificially created for irrigation purposes.

その湖は灌漑目的で人工的に作られました。

B2 noun /ˌæl.əˈɡeɪ.ʃən/

Allegation

告発

Meaning

a claim that someone has done something wrong or illegal

Example

The allegation against him was proven false.

彼に対する告発は虚偽であることが証明された。

C1 noun /ˈæftərˌθɔːt/

afterthought

Meaning

Something added or considered later than originally planned.

Example

The gift seemed like an afterthought rather than a genuine gesture.

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。

C2 noun /ˈæktʃuˌɛri/

actuary

アクチュアリー

Meaning

A professional who analyzes financial risk using mathematics, statistics, and financial theory, especially in insurance and pensions.

Example

The actuary calculated the risk before finalizing the insurance policy.

アクチュアリーは保険契約を最終決定する前にリスクを計算しました。

C1 adjective /ˈɑːtfəl/

Artful

巧妙な; 技巧的; ずるい

Meaning

clever or skillful, especially in a cunning way

Example

She gave an artful answer that avoided the real question.

彼女は本当の質問を避ける巧妙な答えを出しました。

C2 verb /əˈbeɪs/

abase

卑下する

Meaning

to belittle or degrade someone

Example

He refused to abase himself before the king.

彼は王の前で自分を卑下するのを拒否した。

C1 verb /əˈbriːvieɪt/

abbreviate

省略する

Meaning

To shorten a word, phrase, or text by leaving out letters or parts.

Example

We often abbreviate 'Doctor' to 'Dr'.

私たちはよく 'Doctor' を 'Dr.' に省略します。

B2 noun /əˌveɪləˈbɪləti/

availability

利用可能性

Meaning

the state of being able to be used or obtained

Example

The availability of clean water is crucial for health.

清潔な水の利用可能性は健康にとって非常に重要です。

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。

B1 verb /əˈmeɪz/

amaze

驚かせる

Meaning

to fill someone with great surprise or wonder

Example

The magician’s final trick amazed the audience.

魔術師の最後のトリックは観客を驚かせた。

B2 adjective /ˈædmərəbəl/

Admirable

賞賛に値する

Meaning

প্রশংসনীয়; চমৎকার;

Example

Her dedication to helping others is truly admirable.

彼女の他人を助ける献身は本当に賞賛に値します。

A2 noun /ˈæmbjʊləns/

ambulance

救急車

Meaning

A specially equipped vehicle used to transport sick or injured people to the hospital.

Example

The ambulance rushed to the accident site within minutes.

救急車は数分で事故現場に到着しました。

C2 noun /ˈænti/

ante

Meaning

a stake put up by a player in poker or similar games before receiving cards; also used figuratively to mean an initial investment or contribution

Example

Each player placed an ante before the game began.

B1 noun /ˈær.əb/

arab

Meaning

a person belonging to the Semitic people of the Middle East and North Africa

Example

He is an Arab living in Dubai.

B2 noun əˈsʌmp.ʃənz

assumptions

仮定

Meaning

Things that are accepted as true or certain to happen, without proof.

Example

His assumptions about the project were completely wrong.

彼のプロジェクトに関する仮定は完全に間違っていた。

A2 adjective /əˈnɔɪd/

annoyed

いらいらした

Meaning

feeling slightly angry or irritated

Example

She felt annoyed by the constant noise.

彼女は絶え間ない騒音にいらいらした。

C1 noun /ˈæk.jʊ.mən/

acumen

鋭さ

Meaning

The ability to make good judgments and quick decisions; keenness and depth of perception.

Example

His business acumen helped the company grow rapidly.

彼のビジネス鋭さは会社の急成長を助けた。

B2 noun /ˈæplɪkənt/

applicant

応募者

Meaning

a person who applies for something, such as a job or a position

Example

The applicant was interviewed for the position.

応募者はそのポジションのために面接されました。

B2 adverb /əˈdɪʃənəli/

additionally

さらに

Meaning

in addition to what has been said or done

Example

Additionally, we offer discounts for early bookings.

さらに、私たちは早期予約に対する割引を提供しています。

B2 verb /əˈweɪkən/

awaken

目覚めさせる

Meaning

to stop sleeping; to cause to become aware

Example

The loud noise awakened the entire neighborhood.

大きな音が目覚めさせ、近所全体を起こした。

B1 preposition/adverb /əˈkɔːrdɪŋ/

according

によると

Meaning

As stated by or in agreement with.

Example

According to the report, sales increased last quarter.

報告書によると、売上は前四半期に増加しました。

B2 adjective /ˈæp.lɪ.kə.bəl/

applicable

適用可能

Meaning

Relevant or appropriate in a particular situation.

Example

This rule is applicable to eye care too.

このルールは目のケアにも適用されます。

A1 preposition, adverb /əˈlɔːŋ/

along

沿って

Meaning

moving in a constant direction on (a road, path, or surface)

Example

We walked along the river.

私たちは川沿いに歩きました。

C1 adjective /ˌeɪˈsɛkʃuəl/

asexual

無性愛

Meaning

Without sexual feelings, associations, or reproduction through sex.

Example

Many plants reproduce through asexual methods like budding or splitting.

多くの植物は芽生えや分裂のような無性愛的方法で繁殖します。

C2 noun /ˈeɪʒən siː bæs/

Asian sea bass

アジアスズキ

Meaning

a large predatory fish found in coastal waters and estuaries of the Indo-Pacific region, prized for its white meat

Example

Asian sea bass is highly valued in aquaculture for its fast growth.

アジアスズキは成長が早いため、養殖業で高く評価されています。

B1 adverb /ˈɑːf.tə.wərdz/

Afterwards

その後; 後で; 次に

Meaning

at a later time; after an event or time that has already been mentioned

Example

We had dinner and afterwards we watched a movie.

私たちは夕食をとり、その後映画を見ました。

B2 noun /ˈædvərtaɪzər/

advertiser

広告主

Meaning

a person or company that advertises a product, service, or event

Example

The advertiser paid millions for a Super Bowl commercial spot.

広告主はスーパーボウルのコマーシャルに何百万ドルも支払った。

B1 adjective əkˈsep.tɪd

accepted

受け入れられた

Meaning

Generally believed or recognized to be valid or correct.

Example

The accepted terms were discussed in detail.

受け入れられた条件は詳細に議論されました。

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 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。

C2 adjective /ˈæsɪnaɪn/

asinine

愚かな

Meaning

Extremely foolish or stupid.

Example

It was an asinine idea to drive into the storm without checking the weather.

天気を確認せずに嵐の中を車で走るのは愚かな考えだった。

B1 verb /əˈtʃiːv/

achieve

達成する

Meaning

to successfully bring about or reach a desired goal or result

Example

She worked hard to achieve her dream of becoming a doctor.

彼女は医者になるという夢を達成するために一生懸命働いた。

B2 verb /əˈkʌmpəni/

accompany

同行する

Meaning

to go somewhere with someone as a companion or escort

Example

She asked her friend to accompany her to the concert.

彼女は友達にコンサートに一緒に行ってほしいと頼んだ。

C2 noun /ˈɔːlmənæk/

almanac

年鑑

Meaning

An annual publication containing calendars, weather forecasts, astronomical data, and other useful information.

Example

He consulted the almanac to check the phases of the moon.

彼は月の段階を確認するために年鑑を参照しました。

A2 noun /ˈeər kənˈdɪʃ.ən.ər/

Air conditioner

エアコン

Meaning

a system that controls the temperature, humidity, and air quality in a building or room

Example

We turned on the air conditioner because it was too hot outside.

外が暑すぎたので、エアコンをつけました。

B2 adverb /ˈædɪkwətli/

adequately

適切に

Meaning

in a satisfactory manner

Example

He completed the task adequately, but could improve next time.

彼は適切に仕事を終えましたが、次回は改善できるでしょう。

B2 adjective /əˈbjuːsɪv/

abusive

虐待的 / 身体的または言葉での害を伴う

Meaning

extremely offensive or insulting; involving physical or verbal harm

Example

She left her job because of her abusive boss.

彼女は虐待的な上司のせいで仕事を辞めました。

C1 verb /əˈmæs/

amass

積み上げる

Meaning

to gather together or accumulate over a period of time

Example

He managed to amass a fortune through wise investments.

彼は賢い投資を通じて財産を積み上げることができました。

C2 noun /ˈɛərəˌstæt/

aerostat

エアロスタット

Meaning

A lighter-than-air craft, such as a balloon, that is lifted by gas.

Example

The military used an aerostat for surveillance over the border.

軍隊は国境監視のためにエアロスタットを使用しました。

A1 interjection /ɑː/

ah

ああ

Meaning

used to express realization, surprise, or relief

Example

Ah, now I understand what you mean.

ああ、今あなたが言いたいことがわかりました。

C2 noun /ˌæs.əˈfet.ɪ.də/

Asafoetida

アサフェティダ

Meaning

a pungent spice derived from the resin of a plant, commonly used in Indian cooking

Example

A pinch of asafoetida adds a distinctive flavor to the lentil curry.

アサフェティダを少し加えると、レンズ豆カレーに独特の風味が加わります。

C2 noun əˈdrɔɪt.nəs

adroitness

巧みさ

Meaning

Cleverness or skill, especially in using the hands or mind; skillful dexterity.

Example

His adroitness in negotiations secured the deal.

彼の交渉での巧みさが契約を成立させた。

C2 adjective /ˈæʒər/

azure

空色

Meaning

A bright blue color like that of a clear sky.

Example

The clear sky was painted in a deep shade of azure.

澄んだ空は深い空色で塗られていました。

A2 adverb /ˈæktʃuəli/

actually

実際に

Meaning

used to emphasize that something is true, especially when surprising

Example

She actually completed the project ahead of schedule.

彼女は実際に予定より早くプロジェクトを完了させた。

B2 noun əˈmend.mənts

amendments

修正案

Meaning

Changes or additions made to improve a text, law, or constitution.

Example

Amendments reflect evolving public needs.

修正案は進化する公共のニーズを反映しています。

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。

B1 adjective /əˈsoʊsieɪtɪd/

associated

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。

A2 noun /əˈdɪʃ.ən/

Addition

加算; 追加のプロセス

Meaning

the process of adding numbers; something that is added

Example

The addition of a new room made the house more spacious.

新しい部屋の追加により家はより広くなりました。

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。

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。

B2 adjective əˈkwætɪk

aquatic

水生の

Meaning

Growing or living in or near water; of or relating to water.

Example

Aquatic species are being endangered by pollution.

水生種は汚染によって危機に瀕しています。

C1 noun /ˈænərkɪst/

anarchist

アナーキスト

Meaning

a person who believes in or promotes the absence of government or authority

Example

The anarchist group protested against state control.

アナーキストのグループは国家の支配に反対して抗議しました。

A2 verb əˈnaʊnst

announced

発表された

Meaning

To make a public and typically formal declaration about a fact, occurrence, or intention.

Example

The mission was announced publicly.

ミッションは公開で発表されました。

C2 noun əˈkjuː.ə.ti

acuity

鋭敏さ

Meaning

Sharpness or keenness of thought, vision, or hearing.

Example

His intellectual acuity made him a brilliant scientist.

彼の知的な鋭敏さは彼を優れた科学者にしました。

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。

C2 adjective /ˈærənt/

arrant

完全な, 全くの

Meaning

complete or utter (used negatively, e.g., 'arrant nonsense')

Example

His excuse was arrant nonsense.

彼の言い訳は完全なナンセンスだった。

C1 adjective /əˈbaɪdɪŋ/

abiding

持続的な

Meaning

lasting for a long time; enduring

Example

She had an abiding love for her hometown.

彼女は故郷への持続的な愛を持っていました。

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。

B1 noun /ˌæplɪˈkeɪʃən/

application

申請 / アプリケーション / ソフトウェア

Meaning

a formal request for something; the act of putting something into operation; or a software program

Example

She submitted her application for the scholarship.

彼女は奨学金の申請を提出しました。

C2 adjective, adverb /əˈbʌvˌbɔːrd/

aboveboard

正直でオープン

Meaning

Open and honest; without deception or trickery.

Example

The business deal was completely aboveboard.

ビジネス取引は完全に正直でオープンでした。

C1 adjective /ænˈtɪriər/

antistrophe

アンチストロフィー (修辞法の一つ)

Meaning

A rhetorical device in which a word or phrase is repeated at the end of successive clauses; in Greek choral poetry, the part of the ode sung by the chorus in return movement.

Example

The poet used antistrophe to emphasize the repeated phrase.

詩人は繰り返されるフレーズを強調するためにアンチストロフィーを使用しました。

C2 adverb /ˌeɪˈmɔːrəli/

amorally

非道徳的に

Meaning

In a way that shows no concern about whether behavior is morally right or wrong.

Example

He acted amorally, ignoring the consequences of his actions.

彼は非道徳的に行動し、自分の行動の結果を無視した。

C2 adjective /ˌæl.ɪˈmen.tər.i/

alimentary

消化に関連する

Meaning

relating to nourishment or the organs of digestion

Example

The doctor explained the role of the alimentary canal in digestion.

医者は消化管の役割について説明しました。

C2 adjective /ˌæp.rɪˈhen.sə.bəl/

Apprehensible

理解可能な

Meaning

able to be understood or grasped; comprehensible

Example

The complex theory became apprehensible after the professor's explanation.

その複雑な理論は教授の説明後に理解可能になった。

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 noun əˈnæl.ə.sɪs

analysis

分析

Meaning

Detailed examination and evaluation of data or information to understand its components and relationships.

Example

Data analysis is crucial for machine learning models.

データ分析は機械学習モデルにとって重要です。

B2 verb ədˈhɪər

adhere

くっつく

Meaning

To stick firmly to something or stay attached.

Example

Neutrons adhere to protons.

中性子は陽子にくっつく。

C2 adverb /əˈbæk/

Aback

驚いた

Meaning

by surprise; unexpectedly

Example

I was taken aback by his sudden announcement.

私は彼の突然の発表に驚きました。

A2 noun /ækˈtɪv.ə.ti/

Activity

活動; 行動; タスク

Meaning

something that you do for interest or pleasure, or in order to achieve a particular aim

Example

Physical activity is important for good health.

健康のために身体的な活動が重要です。

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。

C2 noun /ˈeɪʒən swɒmp iːl/

Asian swamp eel

アジアドジョウウナギ

Meaning

a snake-like freshwater fish that can survive in muddy waters and is considered a delicacy in South Asian cuisine

Example

Asian swamp eel can breathe air and survive in shallow muddy waters.

アジアドジョウウナギは空気を吸い、浅い泥の水で生き残ることができます。

C2 noun /ˈæntɪkwɛri/

antiquary

骨董品商

Meaning

A person who studies, collects, or deals in antiques or ancient objects.

Example

The antiquary spent years collecting rare manuscripts from the medieval period.

アンティクアリーは中世の貴重な手稿を集めるのに何年も費やしました。

C2 noun /ˈɛərəˌnɔːt/

aeronaut

気球乗り

Meaning

A person who travels in an airship, balloon, or other aircraft.

Example

The aeronaut skillfully guided the hot-air balloon across the valley.

気球乗りは巧みに気球を谷を越えて操縦しました。

C2 noun ˌæɡ.roʊˈfɔːr.ɪ.stri

agroforestry

アグロフォレストリー

Meaning

A land use management system in which trees or shrubs are grown around or among crops or pastureland.

Example

Agroforestry improves soil quality and crop yield.

アグロフォレストリーは土壌の質と作物の収量を改善します。

B2 adjective /æʃ ˈkʌl.ər/

Ash-colour

灰色

Meaning

a grayish color resembling ash

Example

The old building had ash-colour walls that needed painting.

古い建物には灰色の壁があり、塗り直す必要がありました。

B2 noun ˈæmbɪəns

ambience

雰囲気

Meaning

The character and atmosphere of a place.

Example

The restaurant's ambience was relaxed and inviting, perfect for a casual dinner.

レストランの雰囲気はリラックスしていて、カジュアルなディナーに最適でした。

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。

B2 noun /əˌdæptəˈbɪləti/

adaptability

適応性

Meaning

The quality of being able to adjust to new conditions or circumstances

Example

Adaptability to changing environments is crucial in business.

変化する環境に適応する能力はビジネスにおいて重要です。

C2 noun /ˈækmi/

acme

頂点

Meaning

the highest point of achievement or excellence

Example

Winning the award was the acme of his career.

賞を獲得することが彼のキャリアの頂点でした。

B2 adjective /ˈærəɡənt/

Arrogant

傲慢; 高慢

Meaning

having an exaggerated sense of one's importance; proud

Example

His arrogant behavior made him very unpopular.

彼の傲慢な態度は彼を非常に不人気にした。

C1 noun /ˌæntiˈklaɪmæks/

anticlimax

アンチクライマックス

Meaning

A disappointing end after a big build-up of excitement or expectation.

Example

The movie's ending was an anticlimax after such a thrilling story.

映画の終わりは、そんなにエキサイティングなストーリーの後のアンチクライマックスでした。

C1 noun /ɑːˌtɪkjʊˈleɪʃən/

articulation

表現

Meaning

The action of putting into words an idea or feeling of a specified type.

Example

His articulation during the debate impressed everyone.

討論中の彼の表現は、皆を感動させました。

C2 noun /əˈkriːʃən/

accretion

蓄積

Meaning

The process of growth or increase, typically by the gradual accumulation of additional layers or matter.

Example

The accretion of wealth allowed him to invest in various projects.

財産の蓄積により、彼はさまざまなプロジェクトへの投資を可能にした。