arboretum
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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。
C1 adjective /ˌeɪˈtɪpɪkəl/

atypical

非典型
Meaning
not representative of a type, group, or class; unusual or abnormal
Example
The doctor said it was an atypical case of the disease.
医者はそれが病気の非典型的なケースだと言いました。
C1 adjective /əˈpriː.ʃə.bəl/

Appreciable

顕著な; 重要な; 数量的にかなり
Meaning
noticeable; significant; considerable in amount
Example
There was an appreciable improvement in his test scores.
テストのスコアに顕著な改善が見られました。
A2 noun (plural) /ædz/

ads

広告
Meaning
short for advertisements; promotional messages intended to sell products or services
Example
I often skip ads when watching videos online.
私はオンライン動画を見るとき、よく広告をスキップします。
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。
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。
B2 adjective /əbˈsɜːrd/

absurd

不合理な, ばかげた
Meaning
wildly unreasonable, illogical, or inappropriate
Example
It is absurd to think that the earth is flat.
地球が平らだと思うのは不合理です。
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。
C1 verb /əˈkrɛdɪt/

accredit

認証
Meaning
to officially recognize, authorize, or approve someone or something
Example
The university is accredited by the national education board.
その大学は国の教育委員会から認定されています。
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。
C1 noun /ɑːrˈmɑːdə/

armada

戦艦艦隊
Meaning
A large fleet of warships.
Example
The Spanish Armada sailed against England in 1588.
スペインのアルマダは1588年にイギリスに対して出航した。
B2 adjective /əˈnɒn.ɪ.məs/

Anonymous

匿名の; 名前のない
Meaning
having an unknown name or identity; nameless
Example
The author published the book under an anonymous pseudonym.
著者は匿名のペンネームでその本を出版した。
B1 noun /ədˈvaɪzər/

adviser

アドバイザー
Meaning
a person who gives advice, especially in a professional or official role
Example
He works as a financial adviser at a bank.
彼は銀行で金融アドバイザーとして働いています。
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。
C1 noun /əˈstuːt.nəs/

astuteness

洞察力
Meaning
The ability to accurately assess situations or people and turn this to one's advantage.
Example
His astuteness helped in negotiations.
彼の洞察力は交渉で役立った。
B2 noun ˈænsɛstərz

Ancestors

先祖
Meaning
A person from whom one is descended; a forefather.
Example
The family tree shows the names of all ancestors.
家族の木はすべての先祖の名前を示しています。
B2 noun ɔːˈtɒnəmi

autonomy

自律
Meaning
The right or condition of self-government; freedom from external control or influence.
Example
Autonomy was a primary demand.
自律は主要な要求でした。
C1 noun /əˈflɪkʃən/

affliction

苦しみ
Meaning
a state of pain, suffering, or distress
Example
Poverty is a common affliction in many parts of the world.
貧困は世界の多くの地域で一般的な苦しみです。
B2 noun /ˈeɪkər/

acre

Meaning
a unit of land area equal to 4,840 square yards (about 4,047 square meters)
Example
The farmer owns five acres of fertile land.
A1 adverb /ˈɔːl.weɪz/

Always

いつも; 永遠に; 常に
Meaning
at all times; on all occasions; forever
Example
She always arrives early to work.
彼女はいつも仕事に早く到着します。
C1 noun /əˈsæsɪn/

Assassin

暗殺者
Meaning
a person who murders an important person for political or religious reasons
Example
The president was protected from potential assassins by security guards.
大統領はセキュリティガードによって潜在的なアサシンから守られていた。
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？
C1 verb /ˈæbdɪkeɪt/

abdicate

放棄する
Meaning
To give up a position of power or responsibility, especially a throne.
Example
The king decided to abdicate the throne.
王は王位を放棄することに決めました。
C1 adjective /əˈɡæst/

aghast

驚愕
Meaning
filled with shock or horror
Example
The audience was aghast at the tragic scene.
観客はその悲劇的なシーンに驚愕していた。
B2 noun /ˈæktɪˌvɪzəm/

activism

アクティビズム
Meaning
The policy or action of using vigorous campaigning to bring about political or social change.
Example
Her environmental activism inspired many young people to take action.
彼女の環境アクティビズムは多くの若者に行動を促した。
B1 noun əˈdɒp.ʃən

adoption

採用
Meaning
The process of accepting, embracing, or taking up something new, such as a practice, technology, or idea.
Example
The adoption of electric vehicles is increasing worldwide.
世界中で電気自動車の採用が増えています。
B1 noun /ˈæʃ.treɪ/

Ash tray

灰皿
Meaning
a receptacle for tobacco ash and cigarette butts
Example
Please use the ash tray for your cigarette.
あなたのタバコのために灰皿を使ってください。
B2 adjective /əkˈsɛsəbl/

accessible

アクセス可能
Meaning
easy to reach, use, or understand
Example
The museum is easily accessible by public transport.
その博物館は公共交通機関で簡単にアクセス可能です。
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。
A2 noun /ˈæk.ʃənz/

actions

行動
Meaning
The fact or process of doing something, typically to achieve an aim.
Example
Immediate actions are needed for pollution control.
汚染防止のために即時の行動が必要です。
C2 noun /ˈɔːldərmən/

alderman

市議会議員
Meaning
An elected member of a municipal council in certain cities and towns.
Example
The alderman proposed a new plan for community parks.
オールダーマンはコミュニティパークの新しい計画を提案しました。
B2 adverb /əˈproʊpriətli/

appropriately

適切に
Meaning
in a way that is suitable or proper for a particular situation
Example
She was dressed appropriately for the event.
彼女はイベントに適切に服を着ていました。
B2 noun /ˌɔː.θɛnˈtɪs.ə.ti/

authenticity

真正性
Meaning
The quality of being authentic; genuineness or truthfulness.
Example
The authenticity of the document was verified.
文書の真正性が確認されました。
C2 adjective /ədˈmɒnɪtəri/

admonitory

警告の
Meaning
giving or conveying a warning or reprimand
Example
She gave him an admonitory glance.
彼女は彼に警告のまなざしを向けました。
C1 noun /ədˈmɪtəns/

admittance

入場
Meaning
the process or fact of entering or being allowed to enter a place
Example
No admittance without a valid ticket.
有効なチケットなしでは入場できません。
C1 noun /ˈæpəθi/

apathy

無関心
Meaning
a lack of interest, enthusiasm, or concern
Example
The students showed apathy towards the new rules.
学生たちは新しいルールに無関心を示しました。
C1 adjective /ɔːˈtʌmnəl/

autumnal

秋の
Meaning
relating to or characteristic of autumn; occurring in autumn
Example
The autumnal colors of red and gold filled the forest.
赤と金の秋の色が森を満たした。
C1 verb /eɪl/

ail

病む
Meaning
to be ill or suffer from a physical or mental problem; to trouble or afflict
Example
She has been ailing since last winter.
彼女は去年の冬から病んでいます。
C1 noun /əˈlɒt.mənt/

allotment

割り当て、配分
Meaning
The distribution or allocation of something, especially resources or portions.
Example
Each department received an allotment of resources.
各部門はリソースの割り当てを受け取りました。
C2 noun /əˈspɜːr.ʒən/

aspersion

中傷
Meaning
An attack on the reputation or integrity of someone.
Example
He cast an aspersion on her character.
彼は彼女の性格に中傷をしました。
B2 noun /ˈænθəm/

anthem

国歌
Meaning
A song that is identified with a particular group, movement, or nation, often expressing pride or unity.
Example
The national anthem was played before the football match.
サッカーの試合の前に国歌が演奏されました。
C1 verb /əˈdɔːrn/

adorn

飾る
Meaning
to decorate or add beauty to something
Example
The hall was adorned with flowers for the wedding.
結婚式のためにホールは花で飾られました。
B2 noun /ˈæd.və.kət/

Advocate

弁護士
Meaning
a lawyer who represents clients in court; a person who supports or argues for a cause or policy
Example
The advocate presented strong evidence to defend his client in court.
その弁護士は法廷で彼の依頼人を弁護するために強力な証拠を提示した。
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 ˌæb.əˈreɪ.ʃən

aberration

逸脱, 異常, 偏差
Meaning
A departure from what is normal, usual, or expected, typically one that is unwelcome.
Example
The scientist dismissed the data as an aberration.
科学者はデータを逸脱と見なした。
B2 noun əˈbʌndəns

abundance

豊富
Meaning
A very large quantity of something; plenty
Example
The abundance of vegetables in winter is remarkable.
冬の野菜の豊富さは素晴らしい。
C2 noun /ˈeɪʒən siː bæs/

Asian sea bass

アジアスズキ
Meaning
a large predatory fish found in coastal waters and estuaries of the Indo-Pacific region, prized for its white meat
Example
Asian sea bass is highly valued in aquaculture for its fast growth.
アジアスズキは成長が早いため、養殖業で高く評価されています。
C1 noun əˌsɪm.ɪˈleɪ.ʃən

Assimilation

同化
Meaning
Connecting new information with existing knowledge
Example
Proper assimilation of knowledge leads to effective learning.
知識の適切な同化は効果的な学習につながります。
C1 adjective /æmˈfɪb.i.əs/

Amphibious

両生類
Meaning
able to live both on land and in water; suitable for both land and water operations
Example
The amphibious vehicle can travel on both land and water.
その両生類車両は、陸地と水中の両方で移動できます。
A1 noun /ˈɛər.pɔːrt/

airport

空港
Meaning
A place where airplanes take off and land, with buildings for passengers and cargo.
Example
We arrived at the airport two hours before the flight.
私たちはフライトの2時間前に空港に到着しました。
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。
C1 verb /əˈskraɪb/

ascribe

帰属する、割り当てる
Meaning
To attribute something to a cause, source, or person.
Example
Many scholars ascribe the poem to an unknown author.
多くの学者はこの詩を未知の作者に帰属させている。
B2 adjective /ˈæp.lɪ.kə.bəl/

applicable

適用可能
Meaning
Relevant or appropriate in a particular situation.
Example
This rule is applicable to eye care too.
このルールは目のケアにも適用されます。
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。
C1 noun /əˌsaɪˈniː/

assignee

受領者
Meaning
a person to whom a right or property is legally transferred
Example
The assignee of the contract is responsible for all future obligations.
契約のアサイニーはすべての将来の義務に責任を負います。
C1 adjective ˈeɪlɪəneɪtɪd

alienated

疎外された
Meaning
Feeling isolated or estranged; disconnected from others or society.
Example
Alienated students are more prone to delinquency.
疎外された学生は、犯罪に走りがちです。
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。
A2 preposition /əˈɡɛnst/ or /əˈɡeɪnst/

against

Meaning
In opposition to; contrary to; touching or resting on.
Example
They voted against the proposal.
C2 verb /ˌæpərˈteɪn/

appertain

関係する
Meaning
to relate to or be connected with something
Example
The rules only appertain to members of the club.
その規則はクラブのメンバーにのみ関係しています。
C1 adjective /ˈæntɪkweɪtɪd/

antiquated

時代遅れ
Meaning
Old-fashioned or outdated.
Example
The office still uses an antiquated filing system.
オフィスはまだ古くなったファイリングシステムを使用しています。
C1 verb /əˈtoʊn/

atone

償う
Meaning
to make amends for a wrong or injury; to make reparation
Example
He tried to atone for his mistakes by helping others.
彼は他の人を助けることで自分の過ちを償おうとした。
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。
B2 noun /ˌɔːltəˈreɪʃən/

alteration

変更
Meaning
a change or modification made to something
Example
The tailor made an alteration to the suit.
仕立屋はスーツに変更を加えました。
B1 noun ɔːlˈtɜːrnətɪv

alternative

代替案
Meaning
(Of one or more things) available as another possibility or choice.
Example
Finding an alternative to plastic is essential.
プラスチックの代替品を見つけることは重要です。
C1 noun /əˈbɪs/

abyss

深淵
Meaning
a deep, immeasurable space, chasm, or void; something seemingly without end
Example
The climbers looked down into the dark abyss below.
登山者たちは下の暗い深淵を見下ろしました。
B1 adjective /ɑːrˈtɪstɪk/

artistic

芸術的
Meaning
having or revealing natural creative skill
Example
She has an artistic sense of design.
彼女はデザインに対するアーティスティックな感覚を持っています。
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。
B2 noun /ədˈvɛntʃərər/

adventurer

冒険家
Meaning
a person who seeks exciting, risky, or unusual experiences; someone who explores new or unknown places
Example
The adventurer traveled deep into the jungle in search of ancient ruins.
その冒険家は古代遺跡を探してジャングルの奥深くへ旅した。
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。
A1 verb /ˈænsər/

answer

答える
Meaning
to respond to a question; to reply; to solve
Example
She will answer the phone when it rings.
彼女は電話が鳴ったら電話に出ます。
C1 adjective /ˈædəmənt/

Adamant

頑固な; 断固とした; 不屈の
Meaning
একগুঁয়ে; জেদী; দৃঢ়সংকল্প; অনমনীয়;
Example
She was adamant about her decision to leave the company.
彼女は会社を辞める決断に対して頑固だった。
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。
A2 verb /əˈpɒlədʒaɪz/

apologize

謝罪する
Meaning
to say sorry for something wrong you have done
Example
He apologized for being late to the meeting.
彼は会議に遅れたことを謝罪しました。
C1 verb /ˈæmpjʊteɪt/

amputate

切断する
Meaning
to cut off a limb from the body by surgery
Example
The doctors had to amputate his leg after the accident.
事故の後、医師は彼の足を切断しなければなりませんでした。
C1 adverb /ˈæmpli/

amply

十分に
Meaning
more than sufficiently; generously
Example
She was amply rewarded for her hard work.
彼女は努力の結果、十分に報われました。
B2 noun /ˈækni/

acne

ニキビ
Meaning
a skin condition in which pores become inflamed and clogged, causing pimples and spots
Example
Regular cleansing and a balanced diet can help reduce acne.
定期の洗浄とバランスの取れた食事は、ニキビの減少に役立ちます。
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 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.
B1 noun /ˈæl.ɪ.ɡeɪ.tər/

Alligator

ワニ
Meaning
a large reptile similar to a crocodile but with a shorter, wider head
Example
The alligator basked in the sun on the riverbank.
ワニは川辺で日光浴をしていました。
B2 adjective /ænˈtɑːrktɪk/

antarctic

南極の
Meaning
relating to the region around the South Pole
Example
The Antarctic region is known for its extreme cold and icy landscapes.
南極地域はその極寒と氷のような景色で知られています。
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。
B1 adjective əkˈsep.tɪd

accepted

受け入れられた
Meaning
Generally believed or recognized to be valid or correct.
Example
The accepted terms were discussed in detail.
受け入れられた条件は詳細に議論されました。
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。
B2 noun /əkˈnɒlɪdʒmənt/

acknowledgement

承認
Meaning
the act of recognizing or accepting something as true or valid; an expression of gratitude or recognition
Example
She received an acknowledgement for her contribution to the project.
彼女はプロジェクトへの貢献に対して承認を受けた。
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。
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。
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。
B2 noun /əˈbɔːrʃən/

abortion

Meaning
The deliberate termination of a human pregnancy, usually performed during the first 28 weeks.
Example
The debate about abortion continues to divide public opinion.
C1 noun /ˈɑːr.tər.i/

Artery

動脈
Meaning
a blood vessel that carries blood away from the heart to other parts of the body
Example
The doctor checked the pulse in his artery.
医者は彼の動脈で脈拍を確認した。
C2 noun /ˈɔːspɪs/

auspice

兆し, 保護
Meaning
A sign, omen, or divine token; also refers to protection or support.
Example
The project was launched under the auspice of the government.
そのプロジェクトは政府の保護のもとで開始されました。
C1 verb /ˌæprɪˈhɛnd/

apprehend

逮捕する
Meaning
to arrest or seize someone; to understand or perceive something
Example
The police managed to apprehend the thief after a long chase.
警察は長い追跡の後、泥棒を捕まえることに成功した。
C1 noun /əˈkuːstɪks/

acoustics

音響学
Meaning
the science of sound, or the properties of a space that affect how sound is heard
Example
The hall’s excellent acoustics made the orchestra sound rich and clear.
ホールの優れた音響学により、オーケストラの音が豊かで明確に聞こえました。
B2 noun /əˈsaɪləm/

asylum

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

apolitical

政治的でない
Meaning
not interested in or not connected with politics
Example
She prefers to stay apolitical and focus on her work.
彼女は政治的でない態度を保ち、仕事に集中することを好みます。
C1 noun, adverb /ˈeɪliəs/

alias

別名
Meaning
A false or assumed identity; also used to mean 'otherwise called'.
Example
The criminal was known by the alias 'Shadow'.
その犯罪者は『シャドウ』という別名で知られていた。
A2 adjective /əˈlaɪv/

Alive

生きている; 死んでいない; 生命とエネルギーに満ちている
Meaning
living; not dead; full of life and energy
Example
The old man is still alive and healthy.
その老人は今でも生きていて健康です。
B1 noun /əˈtrækʃən/

Attraction

アトラクション; 引力;
Meaning
the action or power of evoking interest or pleasure in something; a place that draws visitors
Example
The museum is the main attraction for tourists in this city.
この博物館はこの都市の観光客の主なアトラクションです。
C1 noun /ˈæl.kə.laɪ/

alkali

アルカリ性物質
Meaning
a soluble base substance, typically with a pH greater than 7, that neutralizes acids
Example
Soap contains alkali which helps remove grease.
石鹸にはアルカリ性物質が含まれており、油を取り除くのに役立ちます。
C1 noun /ˌæn.əˈnɪm.ə.ti/

anonymity

匿名
Meaning
The state of being anonymous; having one's identity kept secret or unknown.
Example
Online anonymity protects users from cyber threats.
オンライン匿名はユーザーをサイバー脅威から守ります。
B2 noun /ˈædvərtaɪzər/

advertiser

広告主
Meaning
a person or company that advertises a product, service, or event
Example
The advertiser paid millions for a Super Bowl commercial spot.
広告主はスーパーボウルのコマーシャルに何百万ドルも支払った。
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
C1 noun /ˈæd.vənt/

advent

到来
Meaning
The arrival of a notable person, thing, or event.
Example
The advent of the internet changed the way people communicate.
インターネットの到来は人々のコミュニケーション方法を変えました。
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。
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。
B2 adverb /əˈten.tɪv.li/

Attentively

注意深く
Meaning
with careful attention; in a focused manner
Example
She listened attentively to her teacher's instructions.
彼女は先生の指示を注意深く聞いた。
C1 noun /ˈæmplɪtjuːd/

amplitude

振幅
Meaning
the maximum extent of a vibration or oscillation, or the size of something
Example
The amplitude of the earthquake was measured on the Richter scale.
地震の振幅はリヒター・スケールで測定されました。
B2 conjunction /ˌɔːlˈbiː.ɪt/

albeit

それでも
Meaning
Although; even though.
Example
He finally agreed, albeit reluctantly.
彼は最終的に同意したが、それでも嫌々だった。
B2 noun /ˈeɪ.prən/

apron

Meaning
A protective garment worn over the front of one's clothes to keep them clean, especially while cooking.
Example
She tied an apron around her waist before cooking dinner.
C1 noun /əˈsɪdɪti/

acidity

酸性度
Meaning
the quality or degree of being acidic; the amount of acid present in a substance
Example
The acidity of the soil affects how well crops grow.
土壌の酸性度は作物の成長に影響する。
A1 noun /ˈæp.əl/

Apple

リンゴ
Meaning
a round fruit with red, green, or yellow skin and white flesh
Example
I eat an apple every day for breakfast.
私は毎朝、朝食にリンゴを食べます。
C1 verb /əˈbɔːrt/

abort

中止する；中絶する
Meaning
to stop a process or action before it is completed; to end a pregnancy deliberately
Example
The pilot decided to abort the mission due to bad weather.
悪天候のため、パイロットは任務を中止した。
C1 noun /ˈæk.jʊ.mən/

acumen

鋭さ
Meaning
The ability to make good judgments and quick decisions; keenness and depth of perception.
Example
His business acumen helped the company grow rapidly.
彼のビジネス鋭さは会社の急成長を助けた。
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。
C1 adjective /ˌæpəˈθɛtɪk/

apathetic

Meaning
showing or feeling little or no interest, enthusiasm, or concern
Example
He was apathetic about the outcome of the match.
C1 noun /ˈævətɑːr/

avatar

アバター
Meaning
an icon or figure representing a person in digital contexts; in Hinduism, a divine incarnation
Example
She changed her social media avatar to a new cartoon image.
彼女はソーシャルメディアのアバターを新しいカートゥーン画像に変更しました。
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。
C1 noun ˈæŋkərɪdʒ

anchorage

停泊地
Meaning
A secure holding place; a place where ships can anchor safely.
Example
The boat was anchored near the shore for safety.
ボートは安全のために岸辺に停泊されました。
C1 adjective /əˈbaɪdɪŋ/

abiding

持続的な
Meaning
lasting for a long time; enduring
Example
She had an abiding love for her hometown.
彼女は故郷への持続的な愛を持っていました。
B1 noun /əˈkaʊnt/

Account

アカウント
Meaning
a record of money received and paid out; a report or description of an event
Example
She opened a savings account at the bank.
彼女は銀行で貯蓄口座を開設しました。
C1 noun /əˈlʌmnəs/

alumnus

卒業生
Meaning
a former student or graduate of a school, college, or university
Example
He is an alumnus of Harvard University.
彼はハーバード大学の卒業生です。