arrangement
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B1 noun əˈreɪndʒmənt

arrangement

配置
Meaning
The way things are organized, positioned, or structured.
Example
The arrangement of protons in the nucleus is critical.
原子核内の陽子の配置は重要です。
B1 noun /əˈtrækʃən/

Attraction

アトラクション; 引力;
Meaning
the action or power of evoking interest or pleasure in something; a place that draws visitors
Example
The museum is the main attraction for tourists in this city.
この博物館はこの都市の観光客の主なアトラクションです。
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。
B1 adjective /ˈæbsənt/

absent

欠席
Meaning
not present at a place or event
Example
She was absent from the meeting yesterday.
彼女は昨日会議を欠席していた。
B2 verb /əˈkweɪnt/

acquaint

親しくする
Meaning
to make someone familiar with something; to inform or introduce
Example
Please acquaint yourself with the safety guidelines before operating the machine.
機械を操作する前に、安全ガイドラインを確認してください。
C2 noun /ˈɔːtɑːrki/

autarchy

自給自足
Meaning
A system of self-sufficiency where a state or community is economically independent.
Example
The nation attempted autarchy to reduce reliance on imports.
その国は輸入依存を減らすために自給自足を試みました。
C2 noun /əˈmæl.ɡəm/

amalgam

混合物
Meaning
a mixture or blend of different things
Example
The new policy is an amalgam of several previous laws.
新しい政策は、いくつかの以前の法律の混合物です。
B2 adjective /əˈstɒnɪʃt/

astonished

驚いた
Meaning
feeling very surprised or amazed
Example
She was astonished by the magician's incredible trick.
彼女はその魔術師の信じられない手品に驚いた。
A2 verb /əˈlaʊ/

allow

許可する
Meaning
to give permission for something to happen or someone to do something
Example
The teacher did not allow phones in class.
先生はクラスで電話を許可しませんでした。
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。
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。
C2 noun /ˈɔːspɪs/

auspice

兆し, 保護
Meaning
A sign, omen, or divine token; also refers to protection or support.
Example
The project was launched under the auspice of the government.
そのプロジェクトは政府の保護のもとで開始されました。
C2 verb /əˈvaʊ/

avow

公然と宣言する
Meaning
to openly declare or admit something, often publicly and firmly
Example
He avowed his loyalty to the cause without hesitation.
彼はためらうことなく、彼の忠誠心をその活動に公然と誓った。
A2 noun /ˈæk.ʃənz/

actions

行動
Meaning
The fact or process of doing something, typically to achieve an aim.
Example
Immediate actions are needed for pollution control.
汚染防止のために即時の行動が必要です。
B1 noun, adjective, gerund /ˈæk.tɪŋ/

acting

演技
Meaning
the art or profession of performing in plays, films, or television; temporary performance of duties; the process of performing an action
Example
She is studying acting to become a professional actress.
彼女はプロの女優になるために演技を勉強しています。
B2 adjective/verb /əˈprɒksɪmət/

approximate

おおよその
Meaning
close to the actual but not exact; to estimate or calculate roughly
Example
The cost is approximate and may change later.
その費用はおおよそのもので、後で変わるかもしれません。
B1 noun/verb /əˈwɔːrd/

award

賞
Meaning
a prize or recognition given for an achievement; to give a prize or recognition
Example
She received an award for her outstanding performance.
彼女は優れたパフォーマンスで賞を受けました。
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 /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 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 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。
B1 noun /əˈfer/

Affair

事柄; 出来事;
Meaning
an event or situation; a matter that someone deals with
Example
The wedding was a grand affair with hundreds of guests.
結婚式は何百人ものゲストを招待した壮大な出来事でした。
B1 verb /əˈdʒʌst/

adjust

調整する
Meaning
to change something slightly to make it more suitable or effective
Example
She adjusted the mirror to see the road clearly.
彼女は鏡を調整して道路をはっきり見えました。
C2 noun /ˌæntɪˈtɒksɪn/

antitoxin

抗毒素
Meaning
A substance that neutralizes a specific toxin in the body.
Example
The doctor administered an antitoxin to counter the snake venom.
医師は蛇の毒を無効にするために抗毒素を投与しました。
B2 verb /ˈænəlaɪz/

analyze

分析する
Meaning
to examine something in detail to understand it better or draw conclusions
Example
Scientists analyze data to discover new patterns.
科学者たちは新しいパターンを発見するためにデータを分析しています。
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。
A2 noun /ˈæktrəs/

actress

女優
Meaning
a female performer in plays, movies, or television
Example
The actress looked stunning on the red carpet.
その女優は赤い絨毯の上で素晴らしく見えました。
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。
B1 adverb /əˈsaɪd/

Aside

横に; 脇に; 主な部分から離れて
Meaning
to one side; apart; away from the main part
Example
Please set your book aside and listen to me.
本を脇に置いて、私の話を聞いてください。
B2 adjective ˌæɡ.rɪˈkʌl.tʃər.əl

agricultural

農業の
Meaning
Connected with farming.
Example
Agricultural advancements enhance food security.
農業の進展は食料安全保障を強化します。
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。
B2 noun ɔːˈtɒnəmi

autonomy

自律
Meaning
The right or condition of self-government; freedom from external control or influence.
Example
Autonomy was a primary demand.
自律は主要な要求でした。
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。
C2 noun /ˈæsɪˌteɪt/

acetate

アセテート
Meaning
a salt or ester of acetic acid; a synthetic material used in textiles and film
Example
The company produces acetate fibers for clothing.
その会社は衣服用のアセテート繊維を生産しています。
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。
C2 adjective /ˈækwɪˌlaɪn/

aquiline

ワシのくちばしのような
Meaning
curved like an eagle's beak; hooked
Example
He had an aquiline nose that gave him a distinguished appearance.
彼はワシのくちばしのような鼻を持っており、それが彼に優れた外見を与えていました。
C2 noun /ˌɔːltərˈkeɪʃən/

altercation

口論, 言い争い
Meaning
a noisy argument or quarrel
Example
There was a brief altercation between the two drivers.
二人のドライバーの間で短い口論がありました。
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 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。
B2 noun /ˌæk.jʊˈzeɪ.ʃən/

accusation

告発
Meaning
A statement that someone has done something wrong or illegal.
Example
She made an accusation of theft against her colleague.
彼女は同僚に対して窃盗の告発を行いました。
C2 noun /əˈzeɪ.li.ə/

azalea

アザレアの花
Meaning
a flowering shrub with brightly colored blooms, often grown ornamentally
Example
The garden was full of blooming azaleas in spring.
春にはアザレアの花が咲いていました。
C2 noun /əˈpɒθəˌkɛri/

apothecary

薬剤師
Meaning
A historical term for a person who prepared and sold medicines and drugs.
Example
The village apothecary provided remedies for many common illnesses.
村のアポセカリーは多くの一般的な病気に対する治療法を提供しました。
C1 adjective /æmˈfɪb.i.əs/

Amphibious

両生類
Meaning
able to live both on land and in water; suitable for both land and water operations
Example
The amphibious vehicle can travel on both land and water.
その両生類車両は、陸地と水中の両方で移動できます。
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 verb /ˈæɡ.rə.veɪt/

aggravate

悪化させる
Meaning
To make a situation worse or more serious.
Example
Scratching the rash will only aggravate the condition.
発疹をかくことは、状態を悪化させるだけです。
C2 noun /ˌæv.oʊˈkeɪ.ʃən/

avocation

副業
Meaning
a hobby or minor occupation pursued in addition to one's main work
Example
Painting is his avocation after office hours.
絵画はオフィスの後の彼の副業です。
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。
B2 noun /əˈmɛnəti/

amenity

アメニティ
Meaning
a useful or pleasant facility or feature of a place
Example
The apartment has every amenity needed for comfortable living.
アパートには快適な生活のために必要なすべてのアメニティがあります。
B2 noun, verb /ˈædvɜːrt/

advert

Meaning
(noun) a notice or announcement in a public medium promoting a product, service, or event; (verb) to refer to something in speaking or writing
Example
The company placed an advert in the newspaper for the new position.
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。
A2 verb /əˈfɔːrd/

afford

余裕がある
Meaning
to have enough money to buy; to be able to spare
Example
I can't afford a new car right now.
今、新しい車を買う余裕がありません。
C1 noun, verb, adjective /ˈæɡ.rɪ.ɡət/ (noun/adjective), /ˈæɡ.rɪ.ɡeɪt/ (verb)

aggregate

集合体, 総体
Meaning
A whole formed by combining several elements; to combine into a total.
Example
The data was aggregated to provide a clearer picture of the market.
データは市場のより明確な画像を提供するために集約されました。
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。
A2 adverb /əˈbʌv/

Above

上に; 上方
Meaning
in or to a higher place; overhead
Example
The airplane flew above the clouds.
飛行機は雲の上を飛んでいました。
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。
B2 noun ˈæsɪd reɪn

acid rain

酸性雨
Meaning
Rainfall made acidic by atmospheric pollution, especially from industrial emissions.
Example
Acid rain damages crops and buildings.
酸性雨は作物や建物にダメージを与えます。
B1 adjective /ˌɔːtəˈmætɪk/

automatic

自動
Meaning
working by itself without direct human control
Example
This car has an automatic transmission.
この車には自動変速機があります。
B2 noun ˈænsɛstərz

Ancestors

先祖
Meaning
A person from whom one is descended; a forefather.
Example
The family tree shows the names of all ancestors.
家族の木はすべての先祖の名前を示しています。
B1 noun /aɪl/

aisle

通路
Meaning
a passage between rows of seats or shelves
Example
She walked down the aisle to find her seat.
彼女は席を見つけるために通路を歩いた。
C2 verb /əˈlɪtəreɪt/

alliterate

頭韻を踏む
Meaning
to repeat the same consonant sound at the beginning of words in a phrase or sentence
Example
The poet often alliterates words to create rhythm.
詩人はしばしばリズムを作り出すために言葉をアリテレートします。
C1 noun /ˈæmpɛər/

ampere

アンペア
Meaning
A unit of electric current in the International System of Units (SI), symbolized as A.
Example
The current flowing through the wire is measured in amperes.
ワイヤーを流れる電流はアンペアで測定されます。
B2 noun /æʃ/

ash

灰
Meaning
the powdery residue left after the burning of a substance
Example
After the fire, only ash remained of the house.
火事の後、家の灰だけが残った。
A2 noun /ˈɑːrtɪkl/

article

記事
Meaning
a piece of writing included in a newspaper, magazine, or journal
Example
He wrote an article about climate change.
彼は気候変動に関する記事を書きました。
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 noun /ˈæpərtʃər/

aperture

開口部 / 穴
Meaning
an opening, hole, or gap, especially one that lets in light
Example
Light entered through the small aperture in the wall.
光は壁の小さな開口部を通って入った。
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。
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。
B1 verb /əˈpriːʃieɪt/

appreciate

感謝する
Meaning
to recognize the value or significance of; to be grateful for
Example
I really appreciate your help with this project.
このプロジェクトでのあなたの助けに本当に感謝しています。
C2 noun /ˈæn.oʊd/

anode

正極
Meaning
The positive electrode in a device such as a battery, where current flows into a polarized electrical device.
Example
The anode of the battery was corroded after long use.
バッテリーの正極は長期間の使用後に腐食していました。
C2 noun /əˈluː.vi.əm/

alluvium

沖積土
Meaning
Fertile soil deposited by flowing water, especially in riverbanks.
Example
The alluvium in riverbanks is highly fertile for agriculture.
川の岸辺にあるアリューヴィウムは農業に非常に肥沃です。
C1 adjective /ˈæntɪkweɪtɪd/

antiquated

時代遅れ
Meaning
Old-fashioned or outdated.
Example
The office still uses an antiquated filing system.
オフィスはまだ古くなったファイリングシステムを使用しています。
C1 adverb /ˈæm.ɪ.kə.bli/

Amicably

友好的に
Meaning
in a friendly way without anger or resentment
Example
The divorce was settled amicably between both parties.
離婚は両者の間で友好的に解決されました。
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。
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 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。
B2 adjective, noun /ədˈvaɪzəri/

advisory

アドバイザリー
Meaning
(adjective) having the power to give advice but not to make sure that it is followed; (noun) an official announcement containing information or a warning
Example
The committee serves in an advisory capacity to the board of directors.
委員会は取締役会にアドバイザリーの役割を果たしています。
C2 adjective /ˌænθrəpəˈmɔːrfɪk/

anthropomorphic

擬人化
Meaning
attributing human characteristics to non-human things, like animals or objects
Example
The cartoon shows an anthropomorphic cat walking on two legs.
そのアニメでは、二本足で歩く擬人化された猫が登場します。
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。
B2 noun /ˈɔːltər/

Altar

祭壇
Meaning
a raised structure on which offerings or sacrifices are made to a deity
Example
The bride and groom stood before the altar during the ceremony.
新郎新婦は式の最中に祭壇の前に立っていました。
A2 adjective /əˈlaɪv/

Alive

生きている; 死んでいない; 生命とエネルギーに満ちている
Meaning
living; not dead; full of life and energy
Example
The old man is still alive and healthy.
その老人は今でも生きていて健康です。
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。
B2 noun /ɑːrˈkeɪd/

arcade

アーケード
Meaning
a covered passage with arches along one or both sides; also a place with coin-operated games
Example
The children spent the afternoon playing games at the arcade.
子供たちはゲームセンターで午後を過ごしました。
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 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。
C2 noun /ˌæpəˈleɪʃən/

appellation

名称 / タイトル
Meaning
a name or title
Example
The city has earned the appellation 'The Big Apple'.
その都市は「ビッグアップル」という名称を得ました。
A2 adjective /əˈmeɪzɪŋ/

amazing

驚くべき
Meaning
causing great surprise or wonder; astonishing
Example
The magician performed an amazing trick.
マジシャンは驚くべきトリックを見せた。
B2 noun /ˌærɪˈstɑːkrəsi/

aristocracy

貴族階級
Meaning
a class of people holding exceptional rank and privileges, especially hereditary nobility
Example
The aristocracy often had influence over political decisions.
貴族階級はしばしば政治的決定に影響を与えた。
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 /əˈnɒməli/

anomaly

異常
Meaning
something that deviates from the norm or expected result
Example
The sudden drop in temperature was considered an anomaly.
温度の急激な低下は異常と見なされました。
A2 noun /əˈɡriː.mənts/

agreements

契約
Meaning
Formal arrangements or understandings between two or more parties.
Example
Agreements strengthen partnerships.
契約はパートナーシップを強化します。
C1 noun ˈæŋkərɪdʒ

anchorage

停泊地
Meaning
A secure holding place; a place where ships can anchor safely.
Example
The boat was anchored near the shore for safety.
ボートは安全のために岸辺に停泊されました。
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。
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。
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 adjective /əˈbrʌpt/

abrupt

突然
Meaning
Sudden or unexpected, often without warning.
Example
The car came to an abrupt stop in the middle of the road.
車は道路の中央で急停車しました。
A1 verb /ˈænsər/

answer

答える
Meaning
to respond to a question; to reply; to solve
Example
She will answer the phone when it rings.
彼女は電話が鳴ったら電話に出ます。
B1 noun /əˌkɒm.əˈdeɪ.ʃənz/

accommodations

宿泊施設
Meaning
Lodging; room and board; places to stay.
Example
The students had proper accommodations.
学生たちは適切な宿泊施設を持っていた。
B2 adjective; verb (past/participle) /əˈʃʊrd/

assured

確信している；自信のある
Meaning
confident and certain; guaranteed or made certain
Example
She felt assured that everything would work out.
彼女はすべてうまくいくと確信していた。
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。
B2 noun əˌpriː.ʃiˈeɪ.ʃən

appreciation

価値の上昇
Meaning
An increase in the value of an asset over time.
Example
Real estate properties often experience appreciation over time.
不動産は通常、時間の経過とともに価値が上昇します。
B1 noun /əˈfek.ʃən/

Affection

愛情; 好意
Meaning
a feeling of liking or caring for someone or something
Example
She has deep affection for her grandmother.
彼女は祖母に深い愛情を持っています。
C1 noun /ænˈtæɡənɪzəm/

antagonism

対立
Meaning
active hostility or opposition
Example
There was clear antagonism between the two political parties.
二つの政党の間には明らかな対立があった。
C2 noun /ˌænəlˈdʒiːziə/

analgesia

鎮痛
Meaning
The inability to feel pain while still conscious.
Example
The doctor induced analgesia before performing the procedure.
医者は手術を行う前に鎮痛を誘発した。
C1 verb /əˈpreɪz/

appraise

評価する
Meaning
to evaluate the value, quality, or importance of something
Example
The jeweler appraised the diamond before buying it.
宝石商はダイヤモンドを購入する前に評価しました。
C1 adverb /ˈæmpli/

amply

十分に
Meaning
more than sufficiently; generously
Example
She was amply rewarded for her hard work.
彼女は努力の結果、十分に報われました。
B2 noun /ˈænsestri/

ancestry

家系
Meaning
one’s family origins or lineage
Example
He is proud of his royal ancestry.
彼は自分の王室の家系を誇りに思っています。
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 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。
B2 noun əˌkjuː.mjəˈleɪ.ʃən

accumulation

蓄積
Meaning
The gradual gathering or collecting of something over time.
Example
The accumulation of dust affects appliance efficiency.
ほこりの蓄積が家電の効率に影響を与える。
B2 adjective əˈstaʊn.dɪŋ

astounding

驚くべき、衝撃的な、すばらしい
Meaning
Surprisingly impressive or notable; causing shock or surprise.
Example
The magician's astounding tricks left the audience speechless.
魔法使いの驚くべきトリックは観客を言葉を失わせました。
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。
B1 noun ɔːˈθɒrəti

authority

権威
Meaning
The power or right to give orders, make decisions, and enforce obedience; a person or organization having power or control.
Example
Regional authority was emphasized.
地域の権限が強調されました。
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 noun /ˈæbət/

abbot

修道院長
Meaning
The head of a monastery for monks.
Example
The abbot welcomed the visitors to the monastery.
アボットは修道院に訪れた訪問者を歓迎しました。
B1 noun /ˈækses/

Access

アクセス
Meaning
the ability, right, or permission to approach, enter, or pass to and from a place
Example
Students have access to the library 24 hours a day.
学生は24時間いつでも図書館にアクセスできます。
B1 adjective /əkˈsɛptəbəl/

acceptable

受け入れ可能な
Meaning
able to be agreed upon; satisfactory or suitable
Example
Your proposal is acceptable to the committee.
あなたの提案は委員会に受け入れ可能です。
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 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。
C2 verb /əˈsɪdɪfaɪ/

acidify

酸性化する
Meaning
to make something acidic or more acidic
Example
Farmers worry that pollution will acidify the soil.
農民たちは、汚染が土壌を酸性にすることを心配しています。
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 /əˈkʌmpənɪmənt/

accompaniment

伴奏
Meaning
Something that goes together with or complements another thing, often music or food.
Example
The dish was served with a spicy sauce as an accompaniment.
その料理はスパイシーなソースを添えて提供されました。