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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 /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 verb /ˈæpɪtaɪz/

appetize

食欲をそそる
Meaning
to stimulate the appetite; to make someone eager or interested
Example
The aroma of fresh bread will appetize the guests before dinner.
焼きたてのパンの香りが客の食欲をそそる。
C2 noun /əˈfeɪ.ʒə/

aphasia

Meaning
a medical condition that causes loss of ability to speak or understand language
Example
After the stroke, she was diagnosed with aphasia.
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。
C2 noun /ˌæriˈviːst/

arriviste

成金
Meaning
A person who has recently gained wealth or status but is considered arrogant or socially unsophisticated.
Example
The business world is full of ambitious arrivistes.
ビジネスの世界には野心的な成金が溢れています。
C2 verb /əˈvʌls/

avulse

引き裂く
Meaning
to tear away or separate forcibly, especially in medical or geological contexts
Example
The surgeon had to avulse the damaged tissue during the operation.
外科医は手術中に損傷した組織を引き裂かなければならなかった。
C2 noun /ænˈtɪstrəfi/

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 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 /əˈmælɡəmeɪt/

amalgamate

合併する
Meaning
to combine or unite to form one organization or structure; to merge
Example
The two companies decided to amalgamate their operations.
二つの会社は運営を合併することを決定しました。
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。
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 verb /ˈærəˌɡeɪt/

arrogate

不当な要求
Meaning
To claim or take something without justification.
Example
The dictator arrogated all powers to himself.
独裁者は不当な要求で全ての権力を自分のものにした。
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 noun /əˈfleɪtəs/

afflatus

神の啓示
Meaning
a sudden divine inspiration or creative impulse
Example
The poet wrote the verses under a sudden afflatus of inspiration.
詩人は突然の神の啓示のもとで詩を書きました。
C2 adjective /ˈæn.ə.daɪn/

anodyne

無害な、痛みを和らげる
Meaning
Not likely to cause offense; bland or harmless. Also refers to something that relieves pain.
Example
The speaker’s anodyne remarks avoided controversy.
スピーカーの無害なコメントは論争を避けました。
C2 adjective ˌeə.rəʊˈstæt.ɪk

aerostatic

気圧静的な
Meaning
Relating to or involving gases (especially air) in equilibrium and the equilibrium of balloons or aircraft under the influence of such gases.
Example
Aerostatic designs ensure stability at high altitudes.
エアロスタティックデザインは高高度での安定性を確保します。
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 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 noun (plural) /əˈspɜːr.ʒənz/

aspersions

中傷
Meaning
Critical or slanderous remarks; multiple attacks on reputation.
Example
The politician rejected the aspersions cast against him.
政治家は彼に対してなされた中傷を拒否した。
C2 noun /ˈæl.baɪt/

albite

Meaning
A white or colorless mineral of the feldspar group, often found in igneous rocks.
Example
Geologists discovered albite crystals in the rock sample.
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。
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。
C2 verb /ˈædjʊˌleɪt/

adulate

過剰に賛美する
Meaning
to praise or flatter excessively
Example
The fans adulated the actor after his performance.
ファンたちは彼のパフォーマンスの後、俳優を賛美しました。
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 /ˈeɪ.li.ə.nə.bəl/

alienable

譲渡可能
Meaning
Able to be transferred or surrendered, usually referring to rights or property.
Example
Property rights are alienable and can be sold or transferred.
財産権は譲渡可能で、売却または転送できます。
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 /ˈɑːrɡoʊ/

argot

専門用語
Meaning
the specialized vocabulary or jargon of a particular group, especially one with a common interest or occupation
Example
The thieves communicated in an argot that outsiders could not understand.
泥棒たちは外部の人々が理解できないアルゴでコミュニケーションを取った。
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 /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 noun /ˈænɪ siːd/

Ani seed

アニス
Meaning
Small aromatic seeds used as a spice and for medicinal purposes, with a sweet licorice-like flavor
Example
Anise seeds are often used in traditional desserts and teas.
アニスの種は伝統的なデザートやお茶にしばしば使われます。
C2 noun /əˈdɛpt.nəs/

adeptness

熟練と巧妙さ
Meaning
Skill and dexterity in a task.
Example
His adeptness in negotiations helped close the deal successfully.
交渉における彼の熟練さは、契約を成功裡に締結するのに役立った。
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 /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 /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 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 /əˈvaʊtʃ/

avouch

主張する
Meaning
to affirm or assert something as true
Example
He avouched his innocence before the judge.
彼は裁判官の前で無実を主張しました。
C2 noun ˌæɡ.roʊˈiː.koʊˌsɪs.təm

agroecosystem

農業生態系
Meaning
An ecological system centered on agricultural activities and processes.
Example
A healthy agroecosystem improves soil fertility.
健康な農業生態系は土壌の肥沃度を改善します。
C2 noun /əˈdjuː/

adieu

Meaning
A farewell or goodbye, often used in a formal or poetic sense.
Example
She bid her friends adieu before leaving for France.
C2 noun /əˈmʊr/

amour

秘密の愛
Meaning
A secret or illicit love affair.
Example
The novel tells the story of a forbidden amour between two characters.
その小説は、二人の登場人物の間の禁じられたアムールの物語を語っています。
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 /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 noun /ˈæntiruːm/

anteroom

控えの間
Meaning
A small room leading to a main one, often used as a waiting area.
Example
The guests waited in the anteroom before being called inside.
客たちは中に呼ばれる前に控えの間で待っていた。
C2 verb /əˈɡræn.daɪz/

aggrandize

拡大する
Meaning
To increase the power, wealth, or importance of a person or entity.
Example
The politician tried to aggrandize himself through exaggerated claims.
政治家は誇張された主張を通じて自分を拡大しようとした。
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 /əˈbɛt/

abet

Meaning
to encourage or assist someone to commit a crime or wrongdoing
Example
He was accused of abetting the criminals in their escape.
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 /əˈsɜːrbəti/

acerbity

辛辣さ
Meaning
bitterness or sharpness of tone, manner, or taste
Example
The acerbity of his remarks left everyone silent.
彼の発言の辛辣さは、みんなを静かにさせた。
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 adverb /əˈsʌndər/

asunder

バラバラに
Meaning
into separate parts; apart
Example
The ancient empire was torn asunder by war.
古代の帝国は戦争でバラバラにされてしまった。
C2 noun /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 /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 /ˈiːdʒɪs/

aegis

保護
Meaning
The protection, backing, or support of a particular person or organization.
Example
The project was carried out under the aegis of the United Nations.
このプロジェクトは国連の庇護の下で実施されました。
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 /ˌæɡ.rəˈdeɪ.ʃən/

aggradation

堆積物によって土地が作られるプロセス
Meaning
The process of land being built up by sediment deposition.
Example
Aggradation helps in the natural expansion of riverbanks.
アグレデーションは河川の自然な拡張を助けます。
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 /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 /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。
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 /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。
C2 noun /ˈæpəplɛksi/

apoplexy

脳卒中や極端な怒りによる突然の意識喪失や制御の喪失
Meaning
A sudden loss of consciousness or control due to stroke or extreme anger.
Example
The old man nearly had apoplexy when he heard the shocking news.
その老人は衝撃的なニュースを聞いてほとんどアポプレキシーを起こしました。
C2 noun /əˈɡrɒnəmi/

agronomy

農業学
Meaning
The science and practice of soil management and crop production, focusing on the principles of plant and soil science to optimize agricultural productivity.
Example
Agronomy focuses on soil management and crop production.
農業学は土壌管理と作物生産に焦点を当てています。
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。
C2 noun /ˈæpəfθɛm/

apophthegm

短くて、機知に富んだ教育的な言葉や格言
Meaning
A short, pithy, and instructive saying or maxim.
Example
She always had a witty apophthegm to share at meetings.
彼女は会議で共有するために、いつも機知に富んだアポフテムを持っていた。
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 adjective /əˈmɔːrfəs/

amorphous

無定形
Meaning
Lacking a clear shape or form; without a defined structure.
Example
The plan remained amorphous and lacked concrete details.
その計画は無定形のままで、具体的な詳細が欠けていました。
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 noun /ˈæl.kə.laɪ ækt/

Alkali Act

アルカリ法案
Meaning
A British law passed in 1863 to regulate the emission of hydrochloric acid gas from alkali works, representing one of the first pieces of environmental legislation.
Example
The Alkali Act of 1863 was one of the first environmental laws.
1863年のアルカリ法案は最初の環境法の一つでした。
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 /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。
C2 verb /əˈɡrɛs/

aggress

攻撃する
Meaning
to initiate an attack or show hostile behavior
Example
The army chose not to aggress without provocation.
軍隊は挑発なしに攻撃しないことを決定しました。
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 /ˌædʒʊˈreɪʃən/

adjuration

厳粛なお願い
Meaning
a solemn urging or appeal
Example
The priest made an adjuration for peace and unity.
神父は平和と団結のために厳粛なお願いをしました。
C2 verb /əˈpraɪz/

apprise

知らせる
Meaning
to inform or notify someone
Example
The manager will apprise the staff of the new policies.
マネージャーはスタッフに新しい方針について知らせます。
C2 noun /əˈnæθəmə/

anathema

アナセマ / 嫌悪された物
Meaning
something or someone intensely disliked or strongly condemned
Example
Violence is anathema to her peaceful nature.
暴力は彼女の平和的な性格にはアナセマです。
C2 adjective /əˈsɛt.ɪk/

ascetic

禁欲的
Meaning
Practicing strict self-denial and abstaining from worldly pleasures, often for religious reasons.
Example
He lived an ascetic life in the mountains, far from worldly comforts.
彼は山の中で禁欲的な生活を送り、世俗的な快適さから遠ざかっていた。
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 noun /ˈæl.mɪ.rə/

Almirah

クローゼット
Meaning
a large cupboard or wardrobe used for storing clothes and other items
Example
I keep all my clothes in the wooden almirah.
私はすべての衣服を木製のアルミラーに保管します。
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 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 adjective /eɪˈsɛptɪk/

aseptic

無菌
Meaning
Free from contamination caused by harmful microorganisms; sterile.
Example
Surgeons must work in an aseptic environment to prevent infection.
外科医は感染を防ぐために無菌環境で作業しなければならない。
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 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 noun /ˈɑːriə/

aria

ソロの歌唱曲
Meaning
a solo vocal piece with instrumental accompaniment, typically in an opera
Example
The soprano performed a moving aria during the second act.
ソプラノは第2幕で感動的なアリアを披露しました。
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。
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 /əˈbaɪdəns/

abidance

遵守
Meaning
the act of following, accepting, or complying with something
Example
Her abidance by the rules impressed the committee.
規則を守ることが委員会に印象を与えました。
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 /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。
C2 adverb /əˈmʌk/

amok

制御不能
Meaning
Behaving uncontrollably and disruptively.
Example
The angry mob ran amok after the verdict was announced.
怒った群衆は判決が発表された後、制御不能で走り回った。
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 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 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 /əˌpɒθiˈoʊsɪs/

apotheosis

頂点, 完璧な例
Meaning
The highest point of development; the perfect example of something; the elevation of someone to divine status.
Example
Many see the Renaissance as the apotheosis of art and culture in Europe.
多くの人々はルネサンスをヨーロッパの芸術と文化の頂点と見なしています。
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。
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。
C2 noun /ˈædʒ.ə.tənt/

Adjutant

アジュタントコウ
Meaning
a large water bird with long legs and neck, also known as adjutant stork
Example
The adjutant stork stood motionless in the shallow water.
アジュタントコウは浅い水の中でじっと立っていました。
C2 noun ˌæɡ.roʊ.iˈkɒl.ə.dʒi

agroecology

アグロエコロジー
Meaning
A scientific discipline that studies agricultural systems by applying ecological concepts and principles.
Example
Agroecology promotes eco-friendly farming.
アグロエコロジーは環境に優しい農業を促進します。
C2 noun ˈɔː.tɑː.ki

autarky

自給自足, 経済的独立
Meaning
Economic independence or self-sufficiency; a policy of establishing a self-sufficient national economy.
Example
Some nations aim for autarky to reduce reliance on imports.
いくつかの国は輸入への依存を減らすためにオータキーを目指しています。
C2 noun /əˈstɪɡmətɪzəm/

astigmatism

乱視
Meaning
An eye defect causing blurred vision due to irregular curvature of the cornea or lens.
Example
She wears glasses to correct her astigmatism.
彼女は乱視を矯正するために眼鏡をかけています。
C2 noun /ˈæk.rɪ.moʊ.ni/

acrimony

Meaning
Bitterness and anger, especially in speech or behavior.
Example
The divorce was filled with acrimony and disputes.
C2 noun /əˈkwaɪərmənt/

acquirement

取得; 習得
Meaning
the act of acquiring something; something that has been acquired, especially a skill or possession
Example
Language proficiency is an important acquirement for global careers.
語学力はグローバルなキャリアにとって重要な取得です。
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 /ˈædɪˌpoʊs/

adipose

脂肪の
Meaning
Relating to or consisting of animal fat; fatty.
Example
The doctor explained that the tissue was mainly adipose in nature.
医者は、組織が主に脂肪性であることを説明しました。
C2 noun /ˈɑːrbɪtər/

arbiter

仲裁者
Meaning
a person who has the authority to settle a dispute or decide an issue
Example
The principal acted as the arbiter in the conflict between the students.
校長は生徒間の対立で仲裁者として行動した。
C2 adjective /ænˈhaɪdrəs/

anhydrous

Meaning
Containing no water.
Example
The chemist used anhydrous ammonia for the experiment.
C2 verb /əˈbreɪd/

abrade

摩擦で擦り減らす
Meaning
to scrape or wear away the surface by friction or erosion
Example
The rough cloth can easily abrade the skin.
ザ・ラフクロスは皮膚を簡単に擦ります。
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 adjective /ænˈdrɒdʒɪnəs/

androgynous

アンドロジナス
Meaning
Having both male and female characteristics; not clearly masculine or feminine.
Example
The fashion show featured models with an androgynous look.
ファッションショーではアンドロジナスなルックのモデルが登場しました。
C2 verb /əˈfaɪəns/

affiance

婚約する
Meaning
to promise or pledge marriage; to formally engage
Example
They decided to affiance after years of friendship.
長年の友情の後、彼らは婚約することを決めた。
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 /ˈæntɪˌtʃeɪmbər/

antechamber

待合室
Meaning
a small room serving as an entry to a larger one
Example
The guests waited in the antechamber before being admitted to the hall.
ゲストはホールに入る前に待合室で待っていました。
C2 noun /ˈætəmaɪzər/

atomizer

アトマイザー
Meaning
A device that sprays liquid into a fine mist.
Example
She used an atomizer to apply the perfume evenly.
彼女は香水を均等に塗るためにアトマイザーを使いました。
C2 adjective /əˈdʌltəreɪtɪd/

adulterated

Meaning
describes food, drink, or medicine made weaker or impure by the addition of another substance
Example
Authorities seized adulterated drugs from the warehouse.
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 /ˌæk.wiˈes.əns/

acquiescence

黙示的同意
Meaning
The reluctant acceptance of something without protest.
Example
His silent acquiescence to unfair rules was surprising.
不公平なルールへの彼の黙示的な同意は驚くべきものでした。
C2 adjective /ˌævəˈrɪʃəs/

avaricious

貪欲な
Meaning
having or showing extreme greed for wealth or material gain
Example
The avaricious landlord increased the rent unfairly.
貪欲な家主は不公平に家賃を上げました。
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 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 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 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。