acknowledge
All a b c d e f g h i j k l m n o p q r s t u v w x y z
All CEFR A1 A2 B1 B2 C1 C2
Content locale
EN 英語 BN ベンガル語 HI ヒンディー語 ES スペイン語 FR フランス語 DE ドイツ語 RU ロシア語 ZH 中国語 JA 日本語
All Vocabulary Cards All Vocabularies
B2 verb /əkˈnɒlɪdʒ/

acknowledge

認める
Meaning
to accept or admit the existence or truth of something; to recognize
Example
She acknowledged her mistake and apologized.
彼女は自分のミスを認め、謝罪した。
B1 noun /ˈær.əb/

arab

Meaning
a person belonging to the Semitic people of the Middle East and North Africa
Example
He is an Arab living in Dubai.
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。
B2 noun /ˈɑːrtɪˌfækt/

artifact

遺物
Meaning
an object made by humans, typically of historical or cultural interest
Example
The museum displayed ancient artifacts from Egypt.
博物館はエジプトの古代のアーティファクトを展示しました。
C2 noun /ˈænsɛstrɪs/

ancestress

女性の祖先
Meaning
a female ancestor; a woman from whom one is descended
Example
She discovered that her ancestress came from a small village in Bengal.
彼女は自分の女性の祖先がベンガルの小さな村出身だと知った。
B2 noun /əkˈnɒlɪdʒmənt/

acknowledgment

認識
Meaning
the act of accepting, admitting, or recognizing something
Example
He received an acknowledgment of his application.
彼は自分の申し込みの認識を受け取りました。
C1 noun /əˈsɛndənsi/

ascendancy

優位, 支配
Meaning
A position of power, influence, or control over others.
Example
The company gained ascendancy in the market through innovation.
その会社は革新を通じて市場で優位を獲得しました。
C1 noun /ˈeɪθiɪzəm/

atheism

無神論
Meaning
The belief that there is no God or gods.
Example
He declared his atheism openly despite social pressure.
彼は社会的圧力にもかかわらず、自分の無神論を公に宣言した。
B1 noun /ˈædʒɪktɪv/

adjective

形容詞
Meaning
a word that describes or modifies a noun by giving more information about its quality, quantity, or state
Example
The adjective in the sentence adds more detail to the noun.
形容詞は名詞に詳しい情報を加えます。
C1 noun /əˈvɜːrʒən/

aversion

嫌悪
Meaning
a strong feeling of dislike or unwillingness towards something
Example
She has a strong aversion to smoking.
彼女は喫煙に強い嫌悪感を持っています。
A1 noun /ˈɑːnti/

aunty

おば
Meaning
the sister of one’s father or mother; a term of respectful address for an older woman, especially in South Asian usage
Example
My aunty lives near our house and often visits us.
私のおばは家の近くに住んでいて、よく私たちを訪ねます。
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 adjective /ˈækʃənəbl̩/

actionable

実行可能な
Meaning
Able to be acted on or giving sufficient reason for legal action.
Example
The lawyer confirmed that the evidence was actionable in court.
弁護士は証拠が法廷で実行可能であることを確認しました。
B1 adverb /ˈɑːf.tə.wərdz/

Afterwards

その後; 後で; 次に
Meaning
at a later time; after an event or time that has already been mentioned
Example
We had dinner and afterwards we watched a movie.
私たちは夕食をとり、その後映画を見ました。
C1 noun /ˈæptɪˌtjuːd/

aptitude

適性
Meaning
a natural ability or talent to do something well
Example
She has a strong aptitude for learning new languages.
彼女は新しい言語を学ぶのに強い適性を持っています。
B2 adjective əˈstaʊn.dɪŋ

astounding

驚くべき、衝撃的な、すばらしい
Meaning
Surprisingly impressive or notable; causing shock or surprise.
Example
The magician's astounding tricks left the audience speechless.
魔法使いの驚くべきトリックは観客を言葉を失わせました。
A1 noun /ˌæftərˈnuːn/

afternoon

午後
Meaning
The part of the day between noon and evening.
Example
We met in the afternoon for coffee.
私たちは午後にコーヒーを飲みに会いました。
C1 adjective /ˌæprɪˈhɛnsɪv/

apprehensive

不安な
Meaning
feeling anxious or fearful that something bad will happen
Example
He was apprehensive about starting a new job in a foreign country.
彼は外国で新しい仕事を始めることに不安を感じていた。
C1 adjective /ˌæl.truˈɪs.tɪk/

altruistic

利他的な
Meaning
Showing a disinterested and selfless concern for the well-being of others.
Example
Her altruistic nature led her to volunteer for charities.
彼女の利他的な性格は、チャリティー活動のボランティアをするよう促した。
C2 noun /ˌæbnɪˈɡeɪʃən/

abnegation

自己否定
Meaning
the act of renouncing or rejecting something, especially self-denial
Example
The monk’s life was one of complete abnegation of worldly pleasures.
僧侶の生活は世俗的な快楽の完全な自己否定でした。
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 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。
B2 noun /əˈkjuːzd/

accused

被告
Meaning
a person who has been charged with a crime
Example
The accused pleaded not guilty in court.
被告人は法廷で無罪を主張しました。
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 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 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 /ˈæntɪfɒn/

antiphon

アンティフォン
Meaning
a short chant or verse sung responsively in Christian worship, typically sung before or after a psalm or canticle
Example
The choir sang the antiphon before beginning the main hymn.
合唱団は主の賛歌を始める前にアンティフォンを歌いました。
C1 noun /ˈæspɪrənt/

aspirant

志願者
Meaning
a person who seeks or hopes to achieve a position of honor or advancement
Example
She is an aspirant for the university's top scholarship.
彼女は大学の最優秀奨学金の志願者です。
B1 adjective /ˈɔːkwəd/

awkward

気まずい
Meaning
causing or feeling embarrassment; difficult to deal with
Example
There was an awkward silence after his joke.
彼のジョークの後、気まずい沈黙がありました。
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 /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。
C1 noun /ˈæpərtʃər/

aperture

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

Adventure Seekers

冒険者
Meaning
People who actively look for exciting and potentially risky activities or experiences.
Example
Sajek Valley is a popular destination for adventure seekers.
サジェク渓谷は冒険者にとって人気のある目的地です。
B2 verb /əˈplɔːd/

applaud

拍手する
Meaning
to show approval by clapping or expressing admiration
Example
The audience applauded the performance.
観客はパフォーマンスに拍手を送りました。
B2 noun /əkˌsɛs.əˈbɪl.ə.ti/

accessibility

アクセシビリティ
Meaning
Accessibility or availability, easy availability of any place or service.
Example
Improved accessibility helps people with disabilities.
改善されたアクセシビリティは、障害を持つ人々を助けます。
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 /ˈeɪmləs/

Aimless

無目的; 目標なし
Meaning
without purpose or direction; lacking a goal
Example
He wandered around the city in an aimless manner.
彼は無目的に街を歩いていた。
C2 adjective /ænˈhaɪdrəs/

anhydrous

Meaning
Containing no water.
Example
The chemist used anhydrous ammonia for the experiment.
B1 noun /ˈeər fɔːrs/

Air force

空軍
Meaning
the military organization of a country that uses aircraft for fighting
Example
The air force conducted a training exercise over the mountains.
空軍は山脈の上で訓練演習を行った。
B2 verb /əˈmend/

amend

修正する
Meaning
to make changes or corrections to improve something; to modify
Example
They amended the contract to include new terms.
彼らは契約を修正して新しい条項を追加しました。
A2 verb əˈdres

address

取り組む
Meaning
To deal with or tackle (a problem or issue); to focus attention on.
Example
The government must address the issues of student politics.
政府は学生政治の問題に取り組むべきです。
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。
C1 verb /əˈluːd/

allude

ほのめかす
Meaning
To refer to something indirectly or casually.
Example
The professor alluded to Shakespeare during the lecture.
教授は講義中にシェイクスピアに言及した。
C2 noun /ˈɔːrɪkl̩/

auricle

耳の外側部分
Meaning
The external part of the ear; also an upper chamber of the heart in anatomy.
Example
The doctor examined the patient’s auricle for signs of infection.
医師は患者の耳の外側部分に感染の兆候がないか調べました。
C2 noun /əˈbeɪəns/

abeyance

一時的な保留
Meaning
a state of temporary suspension or inactivity
Example
The project was held in abeyance until funds became available.
そのプロジェクトは資金が利用可能になるまで保留されていました。
B2 noun ˌæs.pɪˈreɪ.ʃən

aspiration

志望
Meaning
A hope or ambition of achieving something, a strong desire or goal to achieve something.
Example
His aspiration is to become a successful entrepreneur.
彼のアスピレーションは成功した起業家になることです。
B1 noun əˈreɪndʒmənt

arrangement

配置
Meaning
The way things are organized, positioned, or structured.
Example
The arrangement of protons in the nucleus is critical.
原子核内の陽子の配置は重要です。
A2 adjective /əˈmeɪzɪŋ/

amazing

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

ailment

病気
Meaning
An illness, typically a minor one.
Example
He went to the doctor for a minor stomach ailment.
彼は軽い胃の病気のために医者に行った。
C2 noun /ˌɛərəˈstætɪks/

aerostatics

エアロスタティクス
Meaning
The branch of physics that deals with the equilibrium of air and gases and the forces acting on bodies in them.
Example
Aerostatics is essential for understanding how balloons float.
エアロスタティクスは、気球がどのように浮かぶかを理解するために不可欠です。
B1 noun /əˈfer/

Affair

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

analyst

アナリスト
Meaning
a person who studies or examines something carefully to understand it or make decisions
Example
The financial analyst predicted a rise in the stock market.
金融アナリストは株式市場の上昇を予測しました。
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。
C1 adjective ˌæɡrɪˈkʌltʃərəli sɪɡˈnɪfɪkənt

agriculturally significant

農業に関連する重要な
Meaning
Important or crucial related to farming and agriculture
Example
Winter is agriculturally significant for crop production.
冬は作物生産にとって農業に関連する重要な時期です。
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 /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 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。
B2 noun /ˈæktɪvɪst/

activist

活動家
Meaning
A person who works to bring about social or political change.
Example
The activist organized a protest against pollution.
活動家は汚染に反対する抗議を組織しました。
C1 noun /ˈænvɪl/

anvil

鉄製の金床
Meaning
A heavy iron block used by blacksmiths for hammering and shaping metal.
Example
The blacksmith placed the hot iron on the anvil.
鍛冶屋は熱い鉄をアンヴィルに置きました。
C1 noun /ˈæntlɚ/

antler

鹿の角
Meaning
The branched horns on the head of a deer or similar animal, usually shed and regrown annually.
Example
The deer’s antlers grew larger each year.
鹿の角は毎年大きくなります。
B2 noun /əkˈsɛsəri/

accessory

アクセサリー; 犯罪に加担する人物
Meaning
a thing which can be added to something else to make it more useful, versatile, or attractive; a person who assists in committing a crime
Example
She bought some stylish accessories for her new phone.
彼女は新しい電話のためにいくつかのスタイリッシュなアクセサリーを買いました。
B2 verb əˈpɔɪn.tɪd

appointed

任命された
Meaning
Assign a job or role to someone; designate someone to a position.
Example
Appointed officials carry significant responsibilities.
任命された職員は重要な責任を負います。
C1 verb /əˈliː.vi.eɪt/

alleviate

軽減するまたは和らげる
Meaning
To make suffering, deficiency, or a problem less severe; to relieve or ease.
Example
Meditation can alleviate stress and improve focus.
瞑想はストレスを軽減し、集中力を高めることができます。
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。
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 /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。
A2 verb /əˈfɔːrd/

afford

余裕がある
Meaning
to have enough money to buy; to be able to spare
Example
I can't afford a new car right now.
今、新しい車を買う余裕がありません。
A2 noun /ˈæk.sɪ.dənt/

accident

事故
Meaning
An unfortunate incident that happens unexpectedly and unintentionally.
Example
Safety measures aim to prevent accidents.
安全対策は事故を防ぐことを目的としています。
C1 verb /ænˈtæɡənaɪz/

antagonize

挑発する
Meaning
to cause someone to become hostile or angry; to provoke opposition
Example
His rude remarks only served to antagonize his colleagues.
彼の失礼な言葉は彼の同僚をアンタゴナイズすることにしかならなかった。
C1 noun /əˈdʒɪl.ɪ.ti/

agility

敏捷性
Meaning
Ability to work quickly and easily, both physically and mentally.
Example
Mental agility is essential for problem-solving.
問題解決には精神的な敏捷性が必要です。
C1 noun əˈtrɒs.ɪ.tiz

atrocities

残虐行為
Meaning
Extremely wicked or cruel acts, typically involving physical violence or injury.
Example
The atrocities shocked the international community.
その残虐行為は国際社会を震撼させた。
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。
C1 noun /əˈpærəl/

apparel

衣服
Meaning
Clothing, especially formal or special clothes.
Example
The store specializes in wedding apparel.
その店は結婚式の衣服を専門に扱っています。
A2 verb /əˈraɪv/

arrive

到着する
Meaning
to reach a destination; to come to a place
Example
The train will arrive at the station in ten minutes.
電車は10分以内に駅に到着します。
A2 verb /ˈædɪd/

added

追加された
Meaning
to join something to something else to increase its size, number, or amount
Example
She added sugar to her coffee.
彼女はコーヒーに砂糖を加えました。
C1 noun /ˈɔːtəkræt/

autocrat

独裁者
Meaning
A ruler with absolute power.
Example
The autocrat controlled the country with an iron fist.
そのオートクラットは鉄の拳で国を支配していました。
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。
B2 noun ɑːmd ˈkɒn.flɪkt

armed conflict

武装紛争
Meaning
A contest of armed forces; warfare between opposing military forces.
Example
Armed conflict resulted in widespread devastation.
武装紛争は広範な破壊を引き起こしました。
B1 noun, adjective, gerund /ˈæk.tɪŋ/

acting

演技
Meaning
the art or profession of performing in plays, films, or television; temporary performance of duties; the process of performing an action
Example
She is studying acting to become a professional actress.
彼女はプロの女優になるために演技を勉強しています。
B1 noun /ˈɑːrtwɜːrk/

artwork

アート作品
Meaning
a piece of art, such as a painting, sculpture, or drawing
Example
The gallery displayed an impressive artwork by a local artist.
ギャラリーは地元のアーティストによる印象的なアート作品を展示しました。
B2 adverb /ɔːˈθentɪkli/

authentically

本物らしく
Meaning
in a genuine, real, or true manner; in a way that reflects true character or origin
Example
She speaks authentically about her experiences.
彼女は自分の経験について本物らしく話す。
C1 noun /əˈluːʒən/

allusion

暗示
Meaning
An indirect reference to something without mentioning it explicitly.
Example
Her story contained an allusion to a famous myth.
彼女の話には有名な神話への暗示が含まれていた。
C2 verb /əˈsweɪdʒ/

assuage

和らげる
Meaning
To make an unpleasant feeling less intense; to ease or relieve.
Example
The kind words helped assuage her anxiety.
優しい言葉が彼女の不安を和らげるのに役立ちました。
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.
B2 noun /əˈluːmɪnəm/

aluminum

アルミニウム
Meaning
a lightweight silvery metal used for making cans, foils, and other items
Example
The airplane body is made of strong but light aluminum.
飛行機の機体は強いが軽いアルミニウムで作られています。
C2 adjective/adverb /ˌæ.prəˈpoʊ/

apropos

適切
Meaning
Appropriate to the situation; relevant. As an adverb, it means 'with reference to' or 'regarding'.
Example
His comments were not apropos of the discussion.
彼のコメントは議論には適切ではなかった。
B1 adjective /əˈfɔːdəbl/

affordable

手頃な
Meaning
inexpensive and within one's financial means
Example
This restaurant offers affordable meals for families.
このレストランは家族向けに手頃な価格の食事を提供しています。
C1 noun /ˈeɪ.nəs/

Anus

肛門
Meaning
the opening at the end of the digestive tract through which waste leaves the body
Example
The doctor examined the patient's anus during the medical checkup.
医者は診察中に患者の肛門を調べました。
B2 adjective /əˈbjuːsɪv/

abusive

虐待的 / 身体的または言葉での害を伴う
Meaning
extremely offensive or insulting; involving physical or verbal harm
Example
She left her job because of her abusive boss.
彼女は虐待的な上司のせいで仕事を辞めました。
C1 adjective ˈɑː.dʒu.əs

arduous

骨の折れる
Meaning
Involving or requiring strenuous effort; difficult and tiring.
Example
The trek through the mountains was an arduous journey.
山を越える旅は骨の折れる旅だった。
A2 noun /əˈdɪʃ.ən/

Addition

加算; 追加のプロセス
Meaning
the process of adding numbers; something that is added
Example
The addition of a new room made the house more spacious.
新しい部屋の追加により家はより広くなりました。
B2 adjective /əˈtɒm.ɪk/

Atomic

原子
Meaning
relating to atoms or atomic energy; extremely small
Example
The atomic structure of hydrogen is the simplest.
水素の原子構造は最も単純です。
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 adjective ˌæɡ.rɪˈkʌl.tʃər.əl

agricultural

農業の
Meaning
Connected with farming.
Example
Agricultural advancements enhance food security.
農業の進展は食料安全保障を強化します。
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。
A2 noun /əˈsɪstənt/

assistant

アシスタント
Meaning
a person who helps or supports another, often in a job
Example
She works as an assistant in a law firm.
彼女は法律事務所でアシスタントとして働いています。
B2 adverb /əˈfek.ʃən.ət.li/

Affectionately

愛情を込めて
Meaning
in a way that shows feelings of liking or love; with fondness and care
Example
She hugged her grandmother affectionately.
彼女はおばあちゃんを愛情を込めて抱きしめました。
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。
B2 noun /əˈpɒstrəfi/

apostrophe

Meaning
A punctuation mark (') used to indicate possession or the omission of letters or numbers.
Example
You need an apostrophe in the word 'children’s'.
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 /ˌæf.əˈrɪs.tɪk/

aphoristic

格言的スタイル
Meaning
expressed in the style of a short, witty saying
Example
Her writing style is concise and aphoristic.
彼女の執筆スタイルは簡潔で格言的です。
C2 adjective /əˈθɜːrst/

athirst

渇望している, 熱望している
Meaning
Very eager or desirous for something.
Example
The explorer was athirst for adventure.
探検家は冒険に渇望していた。
B2 adjective /əˈten.tɪv/

Attentive

注意深い; 用心深い; 観察力のある
Meaning
careful to pay attention; alert and observant
Example
The attentive student listened carefully to every word the teacher said.
注意深い学生は、教師が言ったすべての言葉に注意深く耳を傾けました。
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。
C1 adjective /ˌeɪsɪˈmɛtrɪkəl/

asymmetrical

非対称
Meaning
Having parts that are not the same in size, shape, or arrangement.
Example
She wore an asymmetrical dress that drew everyone’s attention.
彼女は非対称のドレスを着て、皆の注目を集めていた。
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？
B2 verb /əˈspaɪər/

aspire

志す
Meaning
to have a strong desire to achieve something
Example
Many students aspire to study abroad.
多くの学生が海外で勉強することを目指しています。
C2 adjective /əˈpɜːrtənənt/

appurtenant

附属
Meaning
Belonging to or associated with something, often used in legal/property contexts.
Example
The right of way is appurtenant to the landowner’s property.
通行権は土地所有者の財産に付随しています。
B2 noun /eɪk/

Ache

痛み
Meaning
a continuous or prolonged dull pain in a part of one's body
Example
He had a terrible headache after working late.
彼は遅くまで働いた後、ひどい頭痛に悩まされた。
C1 adverb /əˈlɒft/

aloft

高く
Meaning
Up in or into the air; overhead.
Example
The kite was flying aloft in the clear sky.
凧は晴れた空に高く飛んでいた。
C2 adjective /ˌæntɪməˈrɪdiən/

antemeridian

昼前の時間
Meaning
Relating to the time before noon; occurring in the morning.
Example
She scheduled all her important meetings during the antemeridian hours.
彼女はすべての重要な会議を昼前の時間にスケジュールしました。
C2 adjective /ˈæfərənt/

afferent

求心
Meaning
carrying impulses toward a central organ or part, especially toward the brain or spinal cord
Example
Afferent nerves carry signals from the body to the brain.
求心神経は体から脳に信号を運びます。
B2 adjective /əˈbrʌpt/

abrupt

突然
Meaning
Sudden or unexpected, often without warning.
Example
The car came to an abrupt stop in the middle of the road.
車は道路の中央で急停車しました。
B2 noun /æʃ/

ash

灰
Meaning
the powdery residue left after the burning of a substance
Example
After the fire, only ash remained of the house.
火事の後、家の灰だけが残った。
C1 noun /æmˈniːʒə/

amnesia

健忘症
Meaning
A partial or total loss of memory, usually caused by injury, illness, or psychological trauma.
Example
After the accident, she suffered from amnesia and could not remember her own name.
事故後、彼女はアムネジアに苦しみ、自分の名前を思い出せなかった。
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 /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 /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 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.
B1 verb /əˈweɪk/

awake

目を覚ます
Meaning
to stop sleeping; to become conscious or alert
Example
I awake every morning at six o'clock.
私は毎朝6時に目を覚ます。
C1 adjective /ˌeɪˈsɛkʃuəl/

asexual

無性愛
Meaning
Without sexual feelings, associations, or reproduction through sex.
Example
Many plants reproduce through asexual methods like budding or splitting.
多くの植物は芽生えや分裂のような無性愛的方法で繁殖します。