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A1 determiner/pronoun /ˈɛni/

any

いずれかの
Meaning
one, some, or all, without specifying which
Example
Do you have any questions?
何か質問はありますか？
C1 adjective /ˈɔː.də.bəl/

Audible

聞こえる
Meaning
able to be heard; loud enough to hear
Example
The speaker's voice was barely audible from the back of the large hall.
スピーカーの声は大きなホールの後ろからほとんど聞こえませんでした。
C2 noun /ˈæbɪs/

abbess

アッベッサ (修道院の女性院長)
Meaning
the woman in charge of a convent of nuns
Example
The abbess welcomed the visitors to the convent.
アッベッサは修道院に訪問者を迎えました。
B2 adverb /əˈtræktɪvli/

attractively

魅力的に
Meaning
in a pleasing or appealing way; in a manner that draws interest or admiration
Example
The room was attractively decorated with soft lights and plants.
その部屋は柔らかい照明と植物で魅力的に飾られていた。
B2 verb /ˈɔːdɪt/

audit

監査する
Meaning
to examine and verify financial records or accounts officially
Example
The accountant will audit the company's books next month.
会計士は来月会社の帳簿を監査します。
C2 adjective /ˈæfəbəl/

affable

愛想の良い
Meaning
friendly, easy to talk to, and pleasant in manner
Example
He is such an affable host that everyone feels comfortable at his parties.
彼はとても愛想の良いホストで、誰もが彼のパーティーで快適に感じます。
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。
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.
C2 noun /əˈkjuːtnəs/

acuteness

鋭敏さ；深刻さ
Meaning
sharpness of mind or senses; severity or intensity of a condition
Example
Her acuteness allowed her to notice details others missed.
彼女の鋭敏さは他の人が見逃した細部に気づかせた。
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.
A2 verb /əˈtrækt/

attract

引き付ける
Meaning
to cause someone to have interest or draw something towards
Example
The flowers attract bees with their bright colors.
花はその鮮やかな色で蜂を引き寄せます。
C2 noun /ˈɑːrkeɪndʒəl/

archangel

Meaning
A high-ranking angel, often considered a chief messenger or leader among angels.
Example
Michael is often depicted as the most powerful archangel.
A1 adverb /æz/

As

ように; だから; その時に
Meaning
in the way that; while; because; during the time that
Example
As you grow older, you become wiser.
年を取ると、より賢くなります。
C2 adjective /ˌɑːrbəˈrɛsənt/

arborescent

樹木のような
Meaning
having the appearance or characteristics of a tree; tree-like
Example
The coral had an arborescent form that resembled a miniature forest.
サンゴは、小さな森に似た樹木のような形をしていた。
B2 adverb /ˌæksɪˈdɛntəli/

accidentally

偶然に
Meaning
happening by chance or unexpectedly
Example
He accidentally dropped the glass.
彼はうっかりグラスを落としてしまった。
A2 adjective, noun /ˈeɪʒən/

asian

アジアの
Meaning
relating to Asia or its people
Example
She loves Asian culture.
彼女はアジア文化が好きです。
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。
C2 verb /ˈɔːɡər/

augur

予兆する
Meaning
To be a sign of something to come; to predict or foretell.
Example
Dark clouds augur a coming storm.
暗い雲が来る嵐を予示しています。
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 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。
B2 adjective /əˈkjuːt/

acute

急性
Meaning
present or experienced to a severe or intense degree; having sharp perception
Example
The patient suffered from acute pain after the surgery.
手術後、患者は激しい痛みを感じました。
C1 noun /ˌæɡ.rəˈveɪ.ʃən/

aggravation

悪化, 増悪
Meaning
The act of making a situation worse or the state of being worsened.
Example
The delay caused great aggravation for the passengers.
遅延は乗客に大きな不快感を引き起こしました。
C2 adjective /ˌæn.θrə.pəˈdʒen.ɪk/

anthropogenic

人為的
Meaning
Originating in human activity; caused by humans.
Example
Climate change is largely due to anthropogenic activities.
気候変動は主に人為的な活動によるものです。
B2 noun /əˈsaɪləm/

asylum

亡命
Meaning
Protection or shelter, especially given to refugees or the mentally ill.
Example
The refugees sought asylum in the neighboring country.
難民は隣国で亡命を求めた。
C2 adjective /əˈbɑː.mə.nə.bəl/

abominable

忌まわしい
Meaning
causing moral revulsion; extremely unpleasant
Example
The prisoners were kept in abominable conditions.
囚人たちは忌まわしい状況で拘束されていた。
B2 verb/adjective /ɑːrˈtɪkjʊlət/

articulate

Meaning
to express thoughts or ideas clearly; having the ability to speak fluently and clearly
Example
She was able to articulate her ideas during the meeting.
C1 adjective /əˈkɪn/

akin

類似した
Meaning
Of similar character or related by blood.
Example
His reaction was akin to shock.
彼の反応はショックに似ていた。
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。
C2 verb /ˌæd ˈlɪb/

ad-lib

即興
Meaning
to speak or perform without preparation; to improvise
Example
The comedian ad-libbed a joke when the microphone failed.
コメディアンはマイクの故障でジョークをアドリブしました。
B1 noun /ˈædvərˌtaɪzɪŋ/

advertising

広告
Meaning
the activity of producing advertisements for products or services
Example
The company spends millions on advertising every year.
その会社は毎年広告に何百万も費やしています。
A2 adjective, adverb, interjection /ɔːlˈraɪt/

alright

大丈夫
Meaning
satisfactory or acceptable; safe or unharmed; used to express agreement or acknowledgment
Example
Everything is going to be alright.
すべて大丈夫です。
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 adverb /əˈfrɛʃ/

afresh

再び
Meaning
From the beginning, in a new way.
Example
After the failure, they started the project afresh.
失敗後、彼らは新たにプロジェクトを始めた。
C1 noun /əˈkwɪtl/

acquittal

Meaning
a judgment that a person is not guilty of the crime with which they have been charged
Example
The acquittal of the accused shocked the public.
C2 adjective /ˈæb.ə.rənt/

aberrant

異常
Meaning
deviating from what is normal or expected; abnormal
Example
His aberrant behavior shocked everyone at the meeting.
彼の異常な行動は会議で誰もが驚かせた。
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。
B1 noun /ɑːrmz/

Arms

武器
Meaning
weapons and ammunition; firearms
Example
The soldiers carried their arms into battle.
兵士たちは戦闘に武器を持ち込んだ。
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 adjective /ɔːˈθen.tɪk/

Authentic

本物の; 真実の; 偽物ではない
Meaning
genuine; real; not fake or copied
Example
The museum displays only authentic artifacts from ancient civilizations.
博物館は古代文明からの本物の遺物のみを展示しています。
C1 noun /ədˈhɪə.rəns/

adherence

遵守
Meaning
The practice of following or keeping to a rule, standard, or belief.
Example
Adherence to rules is crucial in any organization.
規則を遵守することは、どの組織においても重要です。
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。
C2 noun/adjective /ˈæl.əˌbæs.tər/

alabaster

アラバスター（白い鉱物）
Meaning
A fine-grained, usually white variety of gypsum, often used for carving; also describes something smooth and pale like alabaster.
Example
The statue was carved from pure alabaster.
その像は純粋なアラバスターで彫られました。
B2 noun /ˌæn.ɪˈmeɪ.ʃən/

Animation

アニメーション
Meaning
the technique of making inanimate objects appear to move; liveliness and enthusiasm
Example
The animation in this movie is incredibly detailed.
この映画のアニメーションは信じられないほど詳細です。
A2 noun /əˈtɛnʃən/

attention

注意
Meaning
the act of focusing on something or someone
Example
The teacher asked for the students' attention.
先生は学生の注意を求めました。
C1 noun /ˌænəsˈθetɪk/

anesthetic

麻酔薬
Meaning
A substance that causes loss of sensation or consciousness, especially used during surgery.
Example
The doctor administered a local anesthetic before stitching the wound.
医者は傷を縫う前に局所麻酔を施しました。
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 noun /ˌætəlˈjeɪ/

atelier

アトリエ（アーティストやデザイナーのスタジオ）
Meaning
A workshop or studio, especially for an artist or designer.
Example
The painter invited us to his atelier to view his new collection.
画家は私たちを彼のアトリエに招待し、新しいコレクションを見せてくれました。
C1 adjective /ˈæʃən/

ashen

青白い
Meaning
Very pale in appearance, often due to shock, fear, or illness.
Example
His face turned ashen when he heard the terrible news.
彼は恐ろしいニュースを聞いたとき、顔が青白くなった。
C1 adjective /əˈtjuːnd/

attuned

敏感な / 調和のとれた
Meaning
Being receptive or sensitive to something; well adjusted or in harmony.
Example
She is attuned to the needs of her students.
彼女は学生のニーズに敏感です。
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。
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 /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 noun /ˈɑː.kɪ.tekt/

architect

建築家
Meaning
a person who designs buildings and oversees their construction
Example
The architect designed a modern office building.
建築家は現代的なオフィスビルを設計しました。
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 /əˈpɑːrtmənt/

apartment

アパートメント
Meaning
a set of rooms forming a residence within a building
Example
She rented an apartment in the city center.
彼女は市の中心にアパートメントを借りました。
C1 noun /ˌɑːrbɪˈtreɪʃən/

arbitration

仲裁
Meaning
the process of resolving a dispute through an impartial third party whose decision is binding; formal judgment outside a court
Example
The contract requires arbitration to settle any disputes.
契約では紛争を仲裁で解決することが定められています。
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。
C1 noun /ˌæn.əˈnɪm.ə.ti/

anonymity

匿名
Meaning
The state of being anonymous; having one's identity kept secret or unknown.
Example
Online anonymity protects users from cyber threats.
オンライン匿名はユーザーをサイバー脅威から守ります。
A1 adjective, adverb /əˈloʊn/

alone

一人
Meaning
having no one else present; on one's own
Example
She prefers to live alone in her apartment.
彼女はアパートで一人で暮らすのを好む。
C2 noun, adjective /ˌæntiˌspæzˈmɒdɪk/

antispasmodic

抗痙攣薬
Meaning
A drug or agent that relieves or prevents muscle spasms.
Example
The doctor prescribed an antispasmodic to ease the pain.
医者は痛みを和らげるために抗痙攣薬を処方しました。
C1 verb /əˈsɪm.ɪ.leɪt/

assimilate

完全に理解し吸収する; 知識や文化に統合する
Meaning
To take in and understand fully; to absorb and integrate into one's knowledge or culture.
Example
Immigrants often struggle to assimilate into a new culture.
移民はしばしば新しい文化に適応するのに苦労しています。
B2 noun ˈæɡ.rɪ.kʌl.tʃɚ

agriculture

農業
Meaning
The science or practice of farming, including cultivation of the soil for the growing of crops and the rearing of animals to provide food, wool, and other products.
Example
Sustainable agriculture can help protect the environment.
持続可能な農業は環境保護に役立ちます。
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 /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。
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。
C2 adjective /ˌæntɪdəˈluːviən/

antediluvian

非常に古臭い
Meaning
extremely old-fashioned; belonging to the time before the biblical flood
Example
His views on women are positively antediluvian.
彼の女性に対する見解は完全に時代遅れです。
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。
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 /æmˈbɪʃ.əs/

Ambitious

野心的
Meaning
having strong desire for success or achievement; aspiring
Example
She is ambitious and works hard to achieve her goals.
彼女は野心的で、目標を達成するために一生懸命働いています。
B2 noun /əˈstrɒnəmər/

astronomer

天文学者
Meaning
a scientist who studies the stars, planets, and the universe
Example
The astronomer observed the new comet through his telescope.
天文学者は望遠鏡を使って新しい彗星を観察しました。
C1 adjective /ˌeɪpəˈlɪtɪkəl/

apolitical

政治的でない
Meaning
not interested in or not connected with politics
Example
She prefers to stay apolitical and focus on her work.
彼女は政治的でない態度を保ち、仕事に集中することを好みます。
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.
C2 adjective /ɑːrˈθʊr.i.ən/

arthurian

アーサー王に関連する
Meaning
Relating to the legendary King Arthur and the stories surrounding him.
Example
The novel is set in an Arthurian world of knights and castles.
その小説は、騎士と城が存在するアーサリアンの世界に設定されています。
C2 noun, verb /əˈfrʌnt/

affront

侮辱
Meaning
An action or remark that causes outrage or offense.
Example
He took her criticism as a personal affront.
彼は彼女の批判を個人的な侮辱と受け止めた。
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。
A2 verb /əˈreɪndʒ/

arrange

並べる
Meaning
to organize or put in order; to plan or prepare
Example
She arranged the flowers in a vase.
彼女は花を花瓶に並べた。
C2 verb /ˈæd.ʌm.breɪt/

adumbrate

予示する
Meaning
to foreshadow or suggest something in an unclear or indirect way
Example
The report adumbrates future economic challenges.
レポートは未来の経済的な課題を暗示している。
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。
B2 noun /ˈærəɡəns/

Arrogance

傲慢
Meaning
having or revealing an exaggerated sense of one's own importance or abilities
Example
His arrogance made him unpopular among his colleagues.
彼の傲慢は彼を同僚の中で人気がなくさせました。
C1 noun /ˌænɛkˈseɪʃən/

annexation

併合
Meaning
the act of adding or taking control of territory or property, especially by a state
Example
The annexation of the region led to international condemnation.
その地域の併合は国際的な非難を招いた。
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。
C2 verb əˈmiːljəreɪt

ameliorate

改善する, 向上させる
Meaning
To make better; improve or enhance something.
Example
The new policies are designed to ameliorate living conditions.
新しい政策は生活条件を改善するために設計されています。
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。
B2 noun /əˈnælədʒi/

analogy

類推
Meaning
A comparison between two things for the purpose of explanation or clarification.
Example
The teacher used the analogy of a tree to explain the structure of an essay.
先生はエッセイの構造を説明するために木の類推を使いました。
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。
C2 adjective /ˌæk.si.əˈmæt.ɪk/

axiomatic

自明の，証明の必要のない明らかな真実
Meaning
Self-evident, obviously true without need for proof
Example
It is axiomatic that hard work leads to success.
一生懸命働くことは自明であり、成功につながります。
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。
C2 noun /ˌɑːrtʃˈdiːkən/

archdeacon

大執事
Meaning
A senior clergyman in the Christian Church ranking below a bishop.
Example
The archdeacon assisted the bishop in administrative duties.
アーチディーコンは行政業務で主教を支援した。
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。
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。
B2 noun /əˈvɔɪdəns/

avoidance

回避
Meaning
the act of staying away from something; deliberate prevention of contact or confrontation
Example
Avoidance of difficult conversations can create bigger problems later.
難しい会話を回避すると、後でより大きな問題を生むことがある。
A2 verb /əˈnaʊns/

announce

発表する
Meaning
to make a formal public statement about something
Example
The company will announce the new product tomorrow.
会社は明日新しい製品をアナウンスします。
B1 adverb /ˌɔːtəˈmætɪkli/

automatically

自動的に
Meaning
without human control or intervention; done by itself
Example
The door closes automatically after you enter.
ドアは自動的に閉まります。
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。
C2 noun /əˈpɒfəsɪs/

apophasis

Meaning
A rhetorical device where the speaker brings up a subject by denying it or pretending to pass over it.
Example
The politician used apophasis by saying, 'I won’t even mention my opponent’s scandals.'
C1 noun /ˌeɪ.li.əˈneɪ.ʃən/

alienation

疎外
Meaning
The state of being isolated or estranged from a group or activity.
Example
The new policies created a sense of alienation among employees.
新しい政策は従業員の間に疎外感を生み出しました。
A2 verb /əˈtend/

attend

参加する
Meaning
to be present at; to give attention to; to take care of
Example
I will attend the conference next week.
来週の会議に参加します。
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。
B1 verb /əˈfɛkt/

affect

影響する
Meaning
to influence or make a difference to something
Example
The weather can greatly affect our mood.
天気は私たちの気分に大きな影響を与えることがある。
B2 noun, verb /əˈsɔːlt/

assault

暴行
Meaning
a physical attack or to attack someone violently
Example
He was charged with assault after the fight.
喧嘩の後で暴行の罪で起訴されました。
B2 noun /ˈælkəhɒlɪzəm/

alcoholism

アルコール依存症
Meaning
A chronic disease characterized by uncontrolled drinking and preoccupation with alcohol.
Example
His alcoholism affected both his health and his family life.
彼のアルコール依存症は、彼の健康と家庭生活に影響を与えた。
C2 noun /ˌækwəˈpɒnɪks/

aquaponics

アクアポニックス
Meaning
A system of aquaculture in which the waste produced by farmed fish or other aquatic animals supplies nutrients for plants grown hydroponically.
Example
Aquaponics efficiently utilizes water by integrating fish and plant farming.
アクアポニックスは魚と植物の農業を統合することによって水を効率的に利用します。
C2 noun /ˈæpəˌθɛm/

apothegm

格言, 名言
Meaning
A short, witty, and instructive saying or maxim.
Example
His speech was filled with apothegms about life and success.
彼のスピーチは人生と成功に関する格言でいっぱいでした。
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 /ˌɑːrbəˈriːtəm/

arboretum

植物園
Meaning
a place where trees, shrubs, and plants are grown for scientific study or public display
Example
We visited the city’s arboretum to learn about exotic trees.
私たちはエキゾチックな木々について学ぶために、市の植物園を訪れました。
A1 adverb /əˈɡoʊ/

ago

以前
Meaning
Used to indicate how long before the present something happened.
Example
I met her two years ago.
私は2年前に彼女に会いました。
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。
B1 noun /əˈdʒen.də/

Agenda

アジェンダ
Meaning
a list of items to be discussed at a meeting; a plan of action
Example
The meeting agenda includes budget discussions.
会議のアジェンダには予算の議論が含まれています。
C1 noun ˌæf.ɔːr.ɪˈsteɪ.ʃən

afforestation

植林
Meaning
The action of planting trees on an area of land in order to form a forest.
Example
Afforestation helps restore biodiversity.
植林は生物多様性を回復するのに役立ちます。
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。
C2 noun /ˈeɪ.pi.ə.rɪst/

apiarist

養蜂家
Meaning
a person who keeps and tends bees for honey production
Example
The apiarist collected fresh honey from the hives.
養蜂家は巣箱から新鮮な蜂蜜を集めました。
C2 adjective /ˈæmbjələˌtɔːri/

ambulatory

外来患者
Meaning
Relating to or able to walk; relating to outpatient medical care.
Example
The patient is ambulatory and does not require bed rest.
その患者は外来患者で、安静が必要ありません。
C2 noun /ˈɪəri/ or /ˈɛəri/

aery

ワシの巣
Meaning
An eagle’s nest, or a lofty, airy dwelling.
Example
The eagle perched proudly near its aery high on the cliff.
鷲は崖の上にあるその巣の近くに誇らしげに止まった。
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。
B2 noun /ˈædvəkəsi/

advocacy

擁護
Meaning
public support for or recommendation of a particular cause or policy
Example
Her advocacy for children's rights earned her international recognition.
彼女の子どもの権利への擁護は、国際的な認知を得た。
C2 adjective /ɔːˈrɔːrəl/

auroral

オーロラに関連する
Meaning
Relating to or resembling the aurora, especially the northern lights.
Example
The scientists observed auroral activity in the night sky.
科学者たちは夜空でオーロラルの活動を観察しました。
C2 noun /əbˈdʌktər/

abductor

誘拐犯
Meaning
a person who kidnaps or forcibly takes someone away
Example
The police arrested the abductor after a nationwide search.
警察は長い捜索の後で誘拐犯を逮捕した。
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。
B2 verb /əˈbændən/

abandon

放棄する
Meaning
to give up completely; to leave permanently
Example
They had to abandon their house due to flooding.
彼らは洪水のために家を放棄しなければならなかった。
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。
C2 noun /əˌbɑː.məˈneɪ.ʃən/

abomination

忌まわしい物
Meaning
a thing that causes disgust or hatred
Example
Slavery was considered an abomination.
奴隷制度は忌まわしい物と見なされていました。