auroral
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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 /ˈæstər/

Aster

アスターの花
Meaning
a flowering plant with daisy-like flowers that typically bloom in fall
Example
The purple asters bloomed beautifully in the autumn garden.
秋の庭で紫のアスターの花が美しく咲きました。
C2 noun /əˈkwɪtəns/

acquittance

領収書
Meaning
a written receipt acknowledging payment or discharge of a debt
Example
He demanded an acquittance after paying the loan.
彼はローンを支払った後で、領収書を要求した。
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 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 /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 /əˈbɑː.mə.neɪt/

abominate

嫌悪する
Meaning
to feel hatred or loathing for something
Example
She abominates cruelty to animals.
彼女は動物への残虐行為を憎んでいます。
C2 verb /ˈæbrəɡeɪt/

abrogate

廃止する
Meaning
To formally repeal, cancel, or abolish a law, agreement, or custom.
Example
The government decided to abrogate the outdated treaty.
政府は古い条約を廃止することを決定しました。
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 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 adjective /ˌæktʃuˈɛəriəl/

actuarial

アクチュアリール
Meaning
Relating to actuaries or their work of analyzing financial risk and uncertainty, especially in insurance and pensions.
Example
The company relied on actuarial reports to set insurance premiums.
その会社は保険料を設定するためにアクチュアリール報告書に依存していた。
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 /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。
C2 verb /əˈbeɪs/

abase

卑下する
Meaning
to belittle or degrade someone
Example
He refused to abase himself before the king.
彼は王の前で自分を卑下するのを拒否した。
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。
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 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 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 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 /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 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 /əˈmɛrɪkəˌnɪzəm/

americanism

Meaning
A word, phrase, or practice characteristic of American English or culture.
Example
The term 'sidewalk' is an Americanism, while 'pavement' is used in British English.
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。
C2 noun /ˈæmpərˌsænd/

ampersand

アンパーサンド
Meaning
The symbol '&' used to represent the word 'and'.
Example
Use an ampersand instead of writing the word 'and' in the company name.
会社名に'and'の代わりにアンパーサンドを使用してください。
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 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 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。
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 /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, adverb /əˈfʊt/

afoot

進行中
Meaning
In progress; happening or being prepared.
Example
There are several new projects afoot in the company.
会社にはいくつかの新しいプロジェクトが進行中です。
C2 noun /ænˈtɪpədiːz/

antipodes

Meaning
places on opposite sides of the Earth; also refers to things that are direct opposites
Example
Australia and Britain are often considered antipodes of each other.
C2 noun ˌæɡ.roʊˈfɔːr.ɪ.stri

agroforestry

アグロフォレストリー
Meaning
A land use management system in which trees or shrubs are grown around or among crops or pastureland.
Example
Agroforestry improves soil quality and crop yield.
アグロフォレストリーは土壌の質と作物の収量を改善します。
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 noun /ˈæpəˌsteɪt/

apostate

背教者
Meaning
A person who renounces a religious or political belief or principle.
Example
He was labeled an apostate after abandoning the faith of his community.
彼は自分のコミュニティの信仰を捨てた後、背教者と呼ばれた。
C2 noun /əˈbluːʃən/

ablution

アブリューション
Meaning
the act of washing oneself, often for religious purposes
Example
He performed his morning ablution before the prayer.
彼は祈りの前に朝のアブリューションを行った。
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 /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 /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。
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 /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 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 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 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 adjective /ˈæstrəl/

astral

Meaning
Relating to the stars or to spiritual, non-physical realms.
Example
Some believe in astral projection, the ability to leave the body and travel spiritually.
C2 noun /ˈɛərəˌstæt/

aerostat

エアロスタット
Meaning
A lighter-than-air craft, such as a balloon, that is lifted by gas.
Example
The military used an aerostat for surveillance over the border.
軍隊は国境監視のためにエアロスタットを使用しました。
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 adjective /ˈæpəˌleɪt/

appellate

控訴に関連する
Meaning
relating to appeals in a court of law
Example
The case was taken to an appellate court.
その事件は控訴裁判所に持ち込まれました。
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 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 /ˈeɪkwiəs/

aqueous

水性の
Meaning
related to or containing water; watery
Example
The solution was in an aqueous form.
溶液は水性の形でした。
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 /ˌæl.ɪˈmen.tər.i/

alimentary

消化に関連する
Meaning
relating to nourishment or the organs of digestion
Example
The doctor explained the role of the alimentary canal in digestion.
医者は消化管の役割について説明しました。
C2 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 /əˈluːviən/

alluvion

アリュビオン
Meaning
The gradual increase of land by the deposit of soil from water; also, a flood or overflow of water.
Example
The river’s alluvion added new fertile land to the village fields.
川のアリュビオンは村の畑に新しい肥沃な土地を加えました。
C2 verb /ˈæd.l̩/

addle

混乱させる
Meaning
To confuse or muddle someone’s mind.
Example
The complicated instructions only served to addle him.
複雑な指示は彼を混乱させるだけでした。
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 verb /əˈnɔɪnt/

anoint

油を塗る, 祝福する
Meaning
To smear or rub with oil, often as part of a religious ceremony or as a sign of consecration.
Example
The priest anointed the king with holy oil.
神父は聖油で王を塗りました。
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 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 /ˈɔːriˌoʊl/

aureole

オーラ
Meaning
A halo or radiance surrounding the head or body, often in religious art.
Example
The painting showed the saint with an aureole around his head.
その絵は、聖人が頭の周りにオーラを持っているのを示していました。
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 noun /ˈɛəri/

aerie

鷲の巣
Meaning
A large nest of a bird of prey, especially an eagle, typically built high in a tree or on a cliff.
Example
The eagle built its aerie on the high cliff.
ワシは高い崖に巣を作った
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 noun /əˈrɪə/

arrear

未払い
Meaning
A debt or payment that is overdue and unpaid.
Example
He was sued for an arrear of rent.
彼は家賃の未払いで訴えられました。
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 /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 /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 adjective /əˈbɔːrtɪv/

abortive

失敗した
Meaning
Failing to produce the intended result; unsuccessful.
Example
Their abortive attempt to climb the mountain ended in retreat.
彼らの山登りの試みは、撤退で終わった。
C2 noun /əkˈsɛʃən/

accession

即位 / 条約の受諾
Meaning
the attainment of a position of rank or power, especially a monarch or president; the formal acceptance of an agreement or treaty
Example
The king's accession to the throne was celebrated with great ceremony.
王の即位は大きな儀式で祝われました。
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 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 /ˌær.əˈbɪl.ɪ.ti/

arability

耕作能力
Meaning
The quality of land being suitable for growing crops.
Example
The arability of land depends on soil quality and water availability.
土地の耕作能力は土壌の質と水の利用可能性に依存しています。
C2 verb /əbˈskɒnd/

abscond

密かに逃げる
Meaning
to leave secretly and quickly, often to avoid arrest or punishment
Example
The thief tried to abscond with the stolen jewelry.
泥棒は盗まれた宝石を持って逃げようとした。
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 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 /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 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 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 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 /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 /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 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 /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 /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 noun /ˈeə.rəm/

Arum

アラム
Meaning
a plant with large arrow-shaped leaves and a white spathe, also known as taro
Example
Arum leaves are commonly used in Bengali cuisine for cooking.
アラムの葉はインディア料理でよく使われます。
C2 noun /əˈspær.ə.ɡəs biːn/

Asparagus bean

アスパラガス豆
Meaning
a long, thin green vegetable pod that grows on vines; also known as yard-long bean
Example
The asparagus bean grows up to three feet long and is commonly used in Asian cooking.
アスパラガス豆は最大で三フィートの長さになり、アジア料理で一般的に使用されます。
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 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 noun /æbˈsɪʒən/

abscission

葉の落下
Meaning
The natural detachment of parts of a plant, typically leaves or fruit.
Example
The autumn season is marked by the abscission of leaves from trees.
秋は木々から葉が落ちることで特徴づけられます。
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 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 /əˈpɒstəsi/

apostasy

背教
Meaning
The abandonment or renunciation of a religious or political belief.
Example
His public apostasy shocked his followers.
彼の公然の背教は彼の支持者を驚かせました。
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 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 /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 adjective /ˈæk.rɪd/

Acrid

辛くて不快な
Meaning
having a strong, unpleasant, and sharp smell or taste
Example
The acrid smoke from the fire made everyone cough.
火事の辛くて不快な煙がみんなを咳き込ませた。
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 /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 /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 adjective /əˈpɒ.krɪ.fəl/

apocryphal

疑わしい
Meaning
Of doubtful authenticity, though widely circulated as true.
Example
The story about him saving the village is probably apocryphal.
彼が村を救ったという話は、おそらく疑わしい。
C2 verb /ˈɔːltərˌkeɪt/

altercate

議論する
Meaning
to argue or dispute angrily or noisily
Example
The neighbors began to altercate over the boundary wall.
隣人たちは境界の壁について議論し始めました。
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 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 verb /ˈæktʃueɪt/

actuate

作動させる
Meaning
to put into action or motion; to motivate or activate
Example
The engineer actuated the machine with a simple switch.
エンジニアは簡単なスイッチで機械を作動させました。
C2 adjective /əˈluːsɪv/

allusive

暗示的
Meaning
Making indirect references or hints; suggestive without being explicit.
Example
The novel is full of allusive passages that point to classical literature.
その小説は古典文学を指し示す暗示的な部分で満ちている。
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 /əˈvɪdəti/

avidity

熱意
Meaning
extreme eagerness or enthusiasm
Example
He accepted the offer with avidity.
彼は熱意を持ってその提案を受け入れました。
C2 noun /əˈpɜːrtənəns/

appurtenance

付属物 / 付加部分
Meaning
an accessory or supplementary part of something
Example
The garage is an appurtenance of the main house.
ガレージはメインハウスの付属物です。
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 /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 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 /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 adjective /əˈkɪliən/

achillean

アキレス的
Meaning
like or characteristic of Achilles; strong but vulnerable
Example
His achillean pride made him blind to danger.
彼のアキレス的な誇りは彼を危険に対して盲目にした。
C2 verb /ˌænɪmədˈvɜːt/

animadvert

批判する
Meaning
To comment critically or unfavorably.
Example
The teacher animadverted on the student's careless mistakes.
教師は生徒の不注意なミスを批判しました。
C2 noun /ænˈtɪfəni/

antiphony

アンティフォニー
Meaning
a form of music in which two or more groups or choirs sing alternately in response to each other
Example
The cathedral's architecture was designed to enhance the effect of antiphony.
大聖堂の建築は、アンティフォニーの効果を高めるために設計されました。
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 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 /ˈæntiˌkraɪst/

antichrist

反キリスト
Meaning
A person regarded as the supreme opponent of Christ, often seen as a figure of ultimate evil.
Example
Some people fear the rise of an Antichrist in the future.
一部の人々は未来に反キリストが現れることを恐れている。
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 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 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。