adjure
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C2 verb /əˈdʒʊər/

adjure

誓約させる
Meaning
to urge or command someone solemnly, often under oath or a strong sense of duty
Example
The witness was adjured to tell the truth in court.
証人は法廷で真実を話すように命じられた。
C2 noun əˌmæl.ɡəˈmeɪ.ʃən

amalgamation

融合, 合併, 統合
Meaning
The action, process, or result of combining or uniting.
Example
The amalgamation of AI and big data is transforming industries.
AIとビッグデータの融合は業界を変革しています。
C2 adverb /əˈskæns/

askance

疑いの目で
Meaning
With suspicion, mistrust, or disapproval.
Example
She looked askance at his unusual proposal.
彼女は彼の異常な提案を疑いの目で見た。
C2 noun /ˈævərɪs/

avarice

強欲
Meaning
extreme greed for wealth or material gain
Example
His avarice led him to exploit his workers.
彼の強欲は彼を労働者を搾取することに導いた。
C2 adjective əˈsɪd.ju.əs

assiduous

勤勉な、熱心な
Meaning
Showing great care and perseverance; diligent and hardworking.
Example
His assiduous efforts led to a successful career.
彼の勤勉な努力は成功したキャリアにつながった。
C2 noun /ˈækəlaɪt/

acolyte

Meaning
a follower or assistant, especially in a religious service or as a devoted supporter of a leader
Example
The senator arrived with a small group of acolytes who handled the press.
C2 noun /ˌær.əˈbesk/

arabesque

装飾的デザイン
Meaning
a complex, ornate design featuring intertwined flowing lines, often used in architecture or ballet poses
Example
The ceiling was decorated with delicate arabesque patterns.
天井は繊細なアラベスク模様で飾られていました。
C2 noun /əˈplɒm/

aplomb

Meaning
Complete and confident self-assurance or poise.
Example
She handled the difficult questions with aplomb.
C2 noun /ˈɔːɡjʊri/

augury

前兆
Meaning
A sign or omen that is believed to predict future events.
Example
The dark clouds were seen as an augury of an approaching storm.
暗い雲は近づいている嵐の前兆として見られた。
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 noun /ˌæpəˈzɪʃən/

apposition

同格 (並列文法)
Meaning
a grammatical construction in which two elements are placed side by side, with one explaining the other
Example
In the phrase 'my friend John,' the word 'John' is in apposition to 'my friend.'
'私の友人ジョン'というフレーズでは、'ジョン'という単語が'私の友人'とアポジションにあります。
C2 adjective /əˈvʌŋkjələr/

avuncular

おじさんのように親切
Meaning
kind and friendly, like an uncle
Example
He had an avuncular manner that made everyone feel comfortable.
彼は、みんなが快適に感じるようなアヴァンクラールな態度を持っていました。
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 adjective /əˈkwɪzətɪv/

acquisitive

Meaning
excessively interested in acquiring money or material things
Example
The acquisitive businessman bought every piece of land he could find.
C2 noun /əˈrɔɪ.oʊ/

arroyo

乾いた小川
Meaning
A dry creek or stream bed that temporarily fills with water after heavy rain.
Example
After the storm, the arroyo quickly filled with rushing water.
嵐の後、小川は急速に水で満たされました。
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。
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 /əkˈsiːd/

accede

同意する
Meaning
to agree to a request, proposal, or demand; to assume an office or position
Example
The government finally acceded to the demands of the protesters.
政府はついに抗議者の要求に応じた。
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.
C2 noun /ˌæbsəˈluːʃən/

absolution

免罪
Meaning
formal release from guilt, obligation, or punishment
Example
The priest granted him absolution for his sins.
神父は彼の罪を許しを与えました。
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。
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。
C2 noun /ˈænθrəsaɪt/

anthracite

硬質石炭
Meaning
A hard, shiny form of coal that burns with little smoke and a high heat value.
Example
The factory used anthracite as its primary fuel source.
工場はアンブラサイトを主な燃料源として使用していました。
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 /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。
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。
C2 adjective /əˈsɜːrbɪk/

acerbic

辛辣
Meaning
sharp, harsh, or bitter in tone or taste
Example
His acerbic comments offended many people in the meeting.
彼の辛辣なコメントは会議で多くの人々を侮辱しました。
C2 noun /ˌædjʊˈleɪʃən/

adulation

過度な賞賛
Meaning
excessive admiration or flattery
Example
The singer enjoyed the adulation of her fans.
歌手はファンたちの過度な賞賛を楽しんでいました。
C2 adverb /əˈsɪdʒuəsli/

assiduously

熱心に
Meaning
with great care and persistence
Example
He worked assiduously to complete the project before the deadline.
彼は締め切り前にプロジェクトを完了するために熱心に働きました。
C2 noun /əˈnɔɪnt.mənt/

anointment

塗油の儀式
Meaning
The act of anointing, usually with oil, as part of a ritual or ceremony.
Example
The anointment of the new leader was a sacred ritual.
新しいリーダーの塗油の儀式は神聖な儀式でした。
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 adjective /əˈɡɒɡ/

agog

Meaning
Highly excited by eagerness, curiosity, or anticipation.
Example
The children were agog with excitement as they waited for the magician to appear.
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。
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。
C2 noun /ˈænɪməlˌkjuːl/

animalcule

動物微生物
Meaning
A microscopic animal, especially a protozoan or other minute organism.
Example
The scientist observed an animalcule moving under the microscope.
科学者は顕微鏡の下で動物微生物が動いているのを観察しました。
C2 noun /ˈɔːldər/

alder

アルダーの木
Meaning
A type of tree from the birch family that typically grows in wet ground and has simple, serrated leaves.
Example
The alder trees grew thick along the riverbank.
アルダーの木は川のほとりに密に成長していました。
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。
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。
C2 noun /əˈbrɪdʒmənt/

abridgment

要約版
Meaning
A shortened version of a larger work, such as a book or speech.
Example
The publisher released an abridgment of the lengthy novel for students.
出版社は学生のために長編小説の要約版を公開しました。
C2 adjective /ˈæsənənt/

assonant

アソナンス
Meaning
Having or characterized by assonance; repeating similar vowel sounds.
Example
The poem is filled with assonant words that create a musical rhythm.
その詩は音楽的なリズムを生み出すアソナンスの言葉で満ちています。
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 /ˌæk.rɪˈmoʊ.ni.əs/

acrimonious

苦くて怒りに満ちた
Meaning
Bitter and angry, often involving harsh words.
Example
The debate turned acrimonious after the controversial remark.
論争は物議を醸す発言の後、アクリモニアスになった。
C2 noun /ˈæn.dʒi.əʊ.plæs.ti/

angioplasty

血管を開くための医療手術で、心臓に血液を供給する血管が閉塞または狭窄している場合に行われます。
Meaning
A medical procedure to open blocked or narrowed blood vessels that supply blood to the heart.
Example
Angioplasty is now safer with robotic assistance.
ロボット支援で、アンジオプラスティは現在より安全です。
C2 noun /ˈændaɪərn/

andiron

木材を支える金属製のスタンド
Meaning
a metal support used in a fireplace to hold logs
Example
The logs rested on the andirons in the old fireplace.
古い暖炉のアンダイロンの上に木材が置かれていた。
C2 noun /ˌænθrəpəˈsɛntrɪzəm/

anthropocentrism

人間中心主義
Meaning
The belief that human beings are the most important or central element of existence.
Example
Anthropocentrism often shapes environmental policies.
人間中心主義はしばしば環境政策を形作る。
C2 noun /ˈæl.ɪ.mənt/

aliment

食物
Meaning
food or nourishment that sustains life
Example
Fruits and vegetables are important aliments for a healthy body.
果物と野菜は健康な体のための重要な食物です。
C2 noun /ˈæp.ɪˌkʌl.tʃər/

apiculture

養蜂業
Meaning
The practice of keeping and raising bees for honey and other products.
Example
Apiculture plays a vital role in agriculture by supporting pollination.
養蜂業は農業において重要な役割を果たしており、受粉をサポートしています。
C2 adjective /əˈfɔːrsed/

Aforesaid

前述の
Meaning
mentioned before; previously stated
Example
The aforesaid conditions must be met before approval.
前述の条件は承認前に満たす必要があります。
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 verb /ˈæsəneɪt/

assonate

韻を踏む
Meaning
To correspond or agree in sound, especially by vowel sounds; to rhyme approximately.
Example
The lines assonate beautifully, giving the song a unique flow.
その行は美しく韻を踏んでおり、歌に独特の流れを与えています。
C2 adjective /əˈskjuː/

askew

傾いている
Meaning
Not in a straight or level position; crooked or tilted.
Example
The picture on the wall hung slightly askew.
壁の絵は少し傾いていた。
C2 adjective /əˈkɜːrsɪd/

accursed

呪われた
Meaning
Doomed, detestable, or under a curse.
Example
The villagers avoided the accursed house on the hill.
村人たちは丘の上の呪われた家を避けていた。
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。
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 /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。
C2 adjective əˈdrɔɪt

adroit

器用な, 巧妙な, うまい
Meaning
clever or skillful in using the hands or mind.
Example
She is adroit at solving complex problems.
彼女は複雑な問題を解決するのが得意です。
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 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。
C2 noun /ˌɔːskʌlˈteɪʃən/

auscultation

聴診
Meaning
The act of listening to internal sounds of the body, typically using a stethoscope.
Example
The doctor performed auscultation to check the patient’s lungs.
医者は患者の肺を調べるために聴診を行いました。
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。
C2 noun/adjective /ælˈbaɪ.noʊ/

albino

アルビノ (色素が欠けている人/動物)
Meaning
A person, animal, or plant lacking normal pigmentation, resulting in pale skin, hair, and eyes.
Example
The albino rabbit had white fur and pink eyes.
アルビノウサギは白い毛とピンクの目を持っていました。
C2 adjective /əˈbɪs.əl/

abyssal

深海の
Meaning
Related to or characteristic of the deep ocean, especially the zone below 4000 meters.
Example
Abyssal creatures survive in extreme pressure conditions.
アビサルクリーチャーは極端な圧力条件で生き残ります。
C2 noun /əˈklɪvɪti/

acclivity

上り坂
Meaning
An upward slope or incline on the ground.
Example
The hikers struggled as they climbed the steep acclivity.
登山者たちは急な上り坂を登るときに苦労しました。
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 adjective /ˌæd.vɛnˈtɪʃ.əs/

adventitious

偶発的
Meaning
Happening by chance or accident, not planned.
Example
His success was partly due to adventitious circumstances.
彼の成功は偶発的な状況による部分があった。
C2 noun /ˌeɪd də ˈkæmp/

aide-de-camp

上級将校の秘密の補佐役として働く軍人
Meaning
A military officer acting as a confidential assistant to a senior officer.
Example
The general was accompanied by his aide-de-camp during the ceremony.
儀式の間、将軍は自分のエイド・デ・キャンプと共に出席しました。
C2 adverb /əˈmʌk/

amuck

無秩序に
Meaning
in a frenzied, uncontrolled, or chaotic manner
Example
The bull ran amuck through the village.
雄牛は村を無秩序に走り回った。
C2 noun /əˈsper.ɪ.ti/

asperity

Meaning
Harshness of tone, manner, or surface.
Example
She spoke with asperity when she was interrupted.
C2 noun /əˈnækrəˌnɪzəm/

anachronism

Meaning
something that is out of its proper time period, especially something old-fashioned in a modern context
Example
Using a typewriter today feels like an anachronism.
C2 verb /əbˈhɔːr/

abhor

嫌悪する
Meaning
to regard with disgust and hatred
Example
She abhors cruelty to animals.
彼女は動物への残酷さを嫌悪しています。
C2 adjective /əˌnækrəˈnɪstɪk/

anachronistic

時代錯誤の
Meaning
belonging to a period other than that being portrayed; old-fashioned or outdated
Example
His views on gender roles are considered anachronistic.
彼の性別役割に関する見解は時代遅れと見なされている。
C2 verb /əˈleɪ/

allay

和らげる
Meaning
to reduce the intensity of fear, worry, or pain; to calm
Example
The teacher tried to allay the students’ fears before the exam.
教師は試験前に生徒たちの恐怖を和らげようとしました。
C2 verb /əˈdjuːs/

adduce

証拠や理由を提供する
Meaning
To provide evidence or reasons to support an argument or idea.
Example
The lawyer adduced several examples to support his case.
弁護士は自分のケースを支持するためにいくつかの例を挙げた。
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.
C2 noun /ɑːmz/

alms

施し
Meaning
Money, food, or goods given to the poor as charity.
Example
The monk distributed alms to the needy villagers.
僧侶は貧しい村人たちに施しを分け与えた。
C2 adjective /əˈkjuː.zəˌtɔːr.i/

accusatory

非難の
Meaning
Suggesting blame or indicating someone has done wrong.
Example
He gave her an accusatory glance.
彼は彼女に非難の目を向けた。
C2 noun /ˈætəvɪzəm/

atavism

先祖返り
Meaning
The recurrence of traits or characteristics from a remote ancestor.
Example
The scientist noted atavism in the child’s physical features.
科学者は子供の身体的特徴に先祖返りを観察しました。
C2 verb /əˈvɜːr/

aver

断言する
Meaning
to state or assert something confidently and strongly
Example
She averred that she was innocent.
彼女は無罪だと主張した。
C2 noun /ˈɑːrkeɪˌɪzəm/

archaism

古語
Meaning
a word, expression, or style of language that is no longer in everyday use
Example
The poem is full of archaisms that give it an old-fashioned flavor.
その詩は古語で満たされており、それが古風な味わいを与えています。
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。
C2 noun /ˌæk.rəˈfoʊ.bi.ə/

acrophobia

高所恐怖症
Meaning
An extreme or irrational fear of heights.
Example
Her acrophobia prevented her from climbing the tall building.
彼女のアクロフォビアは、高い建物に登ることを妨げました。
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。
C2 adjective /ɔːˈrɪfərəs/

auriferous

金鉱を含む
Meaning
Containing or producing gold.
Example
The miners discovered an auriferous vein in the mountains.
鉱山労働者は山で金鉱を含む鉱脈を発見しました。
C2 noun ˌæm.ɔː.tɪˈzeɪ.ʃən

amortization

償却
Meaning
The process of paying off debt with regular payments over time.
Example
The amortization schedule showed a 10-year repayment plan.
アモチゼーションスケジュールは10年間の返済計画を示しました。
C2 verb /ˈæntɪkweɪt/

antiquate

時代遅れにする
Meaning
To make something old-fashioned or obsolete.
Example
The rise of digital cameras antiquated traditional film photography.
デジタルカメラの台頭は、従来のフィルム写真を時代遅れにした。
C2 noun əˌdʌl.təˈreɪ.ʃən

adulteration

不正
Meaning
The action of making something poorer in quality by the addition of another substance.
Example
Adulteration of food is a serious health risk.
食品の不正は健康に対する深刻なリスクです。
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。
C2 noun /ˌæntiˈsaɪkloʊn/

anticyclone

反気旋
Meaning
A weather system with high atmospheric pressure at its center, usually bringing calm and clear conditions.
Example
An anticyclone brought sunny weather across the region.
アンチサイクロンは地域全体に晴れた天気をもたらしました。
C2 noun /əˈpɜːrtənənsɪz/

appurtenances

付属物
Meaning
Additional items or accessories associated with something, often used in a legal or property context.
Example
The house was sold along with all its appurtenances, including the garage and garden.
その家は、ガレージや庭を含むすべての付属物と一緒に売られました。
C2 noun /ˈæltruɪst/

altruist

利他的な人
Meaning
a person who has an unselfish concern for the welfare of others
Example
He is an altruist who always puts others' needs before his own.
彼は常に他人のニーズを自分のニーズよりも優先する利他的な人です。
C2 noun /ˌænɪˈmɒmɪtər/

anemometer

アネモメーター
Meaning
An instrument used to measure the speed and direction of wind.
Example
The scientist used an anemometer to record the wind speed during the storm.
科学者は嵐の間に風速を記録するためにアネモメーターを使用しました。
C2 noun /ˈæn.ə.lɪst/

annalist

年表作成者
Meaning
A person who writes annals or records events year by year.
Example
The annalist carefully documented the events of the king's reign.
アナリストは王の統治期間の出来事を慎重に記録しました。
C2 noun /ænˈtɪlədʒi/

antilogy

アンチロジー
Meaning
A contradiction in terms or ideas; inconsistency in speech or writing.
Example
The politician's statement was criticized for its antilogy.
政治家の発言はそのアンチロジーにより批判されました。
C2 verb /ˈæmbl/

amble

ゆっくり歩く
Meaning
To walk at a slow, relaxed pace.
Example
They amble through the park on Sunday mornings.
彼らは日曜日の朝に公園をゆっくり歩いています。
C2 verb /əˈɡlɒməˌreɪt/

agglomerate

凝集する
Meaning
To collect or form into a mass or group.
Example
The dust particles began to agglomerate into larger clusters.
埃の粒子がより大きな塊に集まり始めました。
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。
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 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 /ˈæmərˌtaɪz/

amortize

償却
Meaning
To gradually reduce or pay off a debt with regular payments.
Example
They plan to amortize the mortgage over 20 years.
彼らは20年間で住宅ローンをアモーティゼする予定です。
C2 adjective /əˈsɪdjʊləs/

acidulous

やや酸っぱいまたは鋭い
Meaning
slightly sour or sharp in taste or manner
Example
The critic wrote an acidulous review of the movie.
批評家は映画に対して鋭いレビューを書いた。
C2 noun /əˈɡrɒnəmɪst/

agronomist

農学者
Meaning
A scientist who studies soil management and crop production.
Example
The agronomist suggested new methods to improve rice yields.
農学者は、米の収穫量を改善するための新しい方法を提案しました。
C2 noun /ˌæpəˈrɪʃən/

apparition

幻影
Meaning
A ghostly figure or an unusual or unexpected appearance.
Example
The children were frightened by the sudden apparition in the old house.
子供たちは古い家で突然現れた幻影に驚きました。
C2 adjective /ˌæm.bɪˈdɛk.strəs/

ambidextrous

両利き
Meaning
Able to use both hands equally well, or versatile in abilities.
Example
Being ambidextrous can be beneficial in sports.
両利きであることはスポーツで有利です。
C2 adjective /ˌækwiˈɛsənt/

acquiescent

黙認
Meaning
ready to accept something without protest, or to do what someone else wants
Example
He gave an acquiescent smile and agreed to the plan.
彼は黙認の笑顔を見せて、計画に同意しました。
C2 noun /əˌkædəˈmɪʃən/

academician

学者
Meaning
a member of an academy; a scholar or expert in a field of study
Example
The academicians gathered to discuss the future of education.
学者たちは教育の未来について話し合った。
C2 noun /ˈɑːrbərɪˌkʌltʃər/

arboriculture

樹木栽培
Meaning
the cultivation and management of trees and shrubs
Example
He studied arboriculture to improve urban green spaces.
彼は都市の緑地を改善するために樹木栽培を学びました。
C2 adjective /ˌæntɪˈθɛtɪkəl/

antithetical

対照的な
Meaning
Directly opposed or contrasted; mutually incompatible.
Example
His views were antithetical to the values of the organization.
彼の見解は組織の価値観と真逆でした。
C2 noun /ænˈtɪpəθi/

antipathy

アンチパシー
Meaning
a deep-seated feeling of dislike or aversion toward something or someone
Example
There was a mutual antipathy between the two rival companies.
二つの競争する企業の間に相互のアンチパシーがありました。
C2 verb /əˈsɛvəˌreɪt/

asseverate

断言する
Meaning
to affirm or declare positively and earnestly
Example
He asseverated that he had never seen the man before.
彼はその男を以前見たことがないと断言した。
C2 noun /əˈreɪ.bi.ən ˈdʒæz.mɪn/

Arabian Jasmine

アラビアジャスミン
Meaning
A fragrant white flower native to South and Southeast Asia, commonly used in perfumes and religious ceremonies
Example
The Arabian jasmine filled the garden with its sweet fragrance.
アラビアジャスミンはその甘い香りで庭を満たしました。
C2 verb /əˈdʌltəreɪt/

adulterate

不正混入
Meaning
to make something poorer in quality by adding another substance, usually of lower quality
Example
The company was fined for adulterating its products with cheap chemicals.
その会社は安価な化学物質で製品をアダルテレートしたため、罰金を科せられました。
C2 noun /ˈænɪməs/

animus

敵意 / 目的
Meaning
A strong feeling of hostility; motivation or purpose behind an action.
Example
His speech was driven by animus against the policy.
彼のスピーチは政策に対する敵意によって駆り立てられた。
C2 verb /əˈreɪn/

arraign

起訴する
Meaning
to formally accuse someone in a court of law and ask them to respond to the charges
Example
The suspect was arraigned before the judge this morning.
容疑者は今朝、裁判官の前で起訴されました。
C2 noun /əˈdʌltərənt/

adulterant

不純物
Meaning
a substance added to something else, often food or drink, to reduce its quality or strength
Example
The laboratory found an adulterant in the milk samples.
実験室はミルクのサンプルに不純物を発見しました。
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 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。
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。
C2 noun /əˌɡlɒməˈreɪʃən/

agglomeration

集積
Meaning
A mass or collection of things, sometimes clustered together.
Example
The city is an agglomeration of diverse cultures and communities.
その都市はさまざまな文化とコミュニティの集積です。
C2 adjective /əˈstrɪndʒənt/

astringent

厳しい
Meaning
sharp or severe in manner or style; also describes a substance that contracts skin or body tissues
Example
Her astringent tone silenced the noisy class.
彼女の厳しい口調は、騒々しいクラスを静めた。
C2 adjective /ˈæpəzɪt/

apposite

適切
Meaning
highly appropriate or relevant to what is being discussed
Example
Her remark was particularly apposite to the situation.
彼女のコメントはその状況に非常に適切でした。
C2 adjective /ˈæbdʒɛkt/

abject

卑劣
Meaning
extremely bad, unpleasant, and degrading
Example
They lived in abject poverty.
彼らは卑劣な貧困の中で生きていました。