astounding
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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。
B2 noun /ˈder.ɪŋ/

Daring

大胆; 危険を冒す意欲
Meaning
adventurous courage; willingness to take risks
Example
The mountain climber's daring impressed everyone at the base camp.
山登りの冒険心は、ベースキャンプの皆に感動を与えました。
C2 adjective /prəˈtuːbərənt/

protuberant

突出または膨らんだ
Meaning
Sticking out or bulging.
Example
His protuberant belly showed after the meal.
食事の後、彼の膨らんだ腹が見えた。
C2 noun /ɪɡˈzɛmplɑːr/

exemplar

模範
Meaning
A model or pattern to be copied or imitated.
Example
She is an exemplar of kindness and generosity.
彼女は親切と寛大さの模範です。
C2 noun /θiˈɒkrəsi/

theocracy

神権政治
Meaning
A system of government in which priests or religious leaders rule in the name of God or a deity.
Example
The country was governed as a theocracy where religious leaders had supreme authority.
その国は神権政治として統治され、宗教指導者が最高の権限を持っていました。
B2 adjective /rɪˈzɪl.i.ənt/

resilient

回復力のある
Meaning
Able to withstand or recover quickly from difficult conditions.
Example
Resilient materials ensure durability.
回復力のある素材は耐久性を保証します。
B2 noun ˈkɔːʃən

caution

注意
Meaning
Care taken to avoid danger or mistakes; a warning or piece of advice.
Example
Researchers issued a caution regarding unsustainable fishing.
研究者たちは持続不可能な漁業について警告を出しました。
C2 noun /ˈmʌstərd ɔɪl/

Mustard Oil

マスタードオイル
Meaning
oil extracted from mustard seeds, commonly used for cooking and medicinal purposes
Example
We use mustard oil for cooking vegetables in our kitchen.
私たちはキッチンで野菜を調理するためにマスタードオイルを使います。
C1 noun /ˈkɒl.ə.bəʊn/

Collar-bone

鎖骨
Meaning
either of the pair of bones joining the breastbone to the shoulder blades; clavicle
Example
He broke his collar-bone in the accident.
事故で鎖骨を骨折しました。
B2 noun /ˈdʒel.i fɪʃ/

Jelly fish

クラゲ
Meaning
a soft-bodied marine animal with a gelatinous umbrella-shaped body and trailing tentacles
Example
The jellyfish floated gracefully through the water with its translucent body.
クラゲは透明な体で優雅に水の中を漂っていた。
C1 adjective /ɪˈlʌstriəs/

illustrious

著名
Meaning
Well known, respected, and admired for past achievements.
Example
She had an illustrious career in medicine.
彼女は医学の分野で著名なキャリアを持っていた。
B2 noun /flɛkˈsɪbɪləti/

flexibility

柔軟性
Meaning
The quality of bending easily without breaking; willingness to change or compromise.
Example
The flexibility of the working hours made it easier to balance work and personal life.
労働時間のフレキシビリティにより、仕事とプライベート生活のバランスが取りやすくなった。
A2 noun /ˈθɪŋkɪŋ/

thinking

考え
Meaning
the process of considering or reasoning about something
Example
Her thinking was clear and precise.
彼女の考えは明確で正確でした。
B2 adjective /fəˈbɪd.ən/

Forbidden

禁止された; 違法な
Meaning
not allowed; prohibited; banned
Example
Smoking is strictly forbidden in this building.
この建物では喫煙が厳しく禁止されています。
C2 noun səˈtaɪ.ə.ti

satiety

満腹感
Meaning
The feeling of being satisfied or full, especially with regard to food.
Example
High-fiber foods provide longer satiety.
高繊維食品はより長い満腹感を提供します。
B1 adverb /ˌæbsəˈluːtli/

Absolutely

完全に; 完全に; 例外なく
Meaning
completely; totally; without exception
Example
I absolutely agree with your decision.
私はあなたの決定に完全に賛成です。
C2 verb /rɔɪl/

roil

かき乱す
Meaning
to make a liquid muddy or disturbed; to cause agitation or disorder
Example
The constant protests roiled the city streets.
絶え間ない抗議が街の通りをかき乱した。
C1 verb /ˈmɜːrmər/

murmur

つぶやく
Meaning
To say something in a low, soft, or indistinct voice.
Example
She murmured a prayer before going to sleep.
彼女は寝る前に祈りをささやきました。
B2 verb /ˈbrɪdʒɪŋ/

bridging

橋を架ける、接続を作る
Meaning
The action of building a bridge over something; connecting or reducing the distance between two things.
Example
The new initiative is bridging the gap between urban and rural development.
新しい取り組みは都市と農村の開発のギャップを埋めています。
C1 adjective /ˈmɔːtəl/

Mortal

死すべき運命; 限られた寿命の; 人間
Meaning
subject to death; having a limited lifespan; human
Example
All human beings are mortal and will eventually die.
すべての人間は死すべき運命にあり、最終的に死ぬ。
A2 noun ˈɑːrɡjumənt

argument

議論
Meaning
A reason or set of reasons given with the aim of persuading others that an action or idea is right or wrong.
Example
His argument was based on majority.
彼の議論は多数決に基づいていました。
C1 noun /ˈlɛk.sɪ.kɒn/

lexicon

語彙
Meaning
The vocabulary of a person, language, or branch of knowledge; a collection of words and terms.
Example
A translator must have a vast lexicon of both languages.
翻訳者は両方の言語の広大な語彙を持っていなければならない。
B2 adjective /ˈfɔːrtʃənət/

fortunate

幸運な
Meaning
Having good luck or receiving something desirable by chance.
Example
She was fortunate to escape the accident without injuries.
彼女は事故で怪我をすることなく逃げることができて幸運だった。
A1 noun /triː/

tree

木
Meaning
a large plant with a trunk, branches, and leaves
Example
The tree in our backyard is over a hundred years old.
私たちの裏庭にある木は百年以上の歴史があります。
B2 adjective /ˈstɛdi/

steady

安定
Meaning
firm, stable, and not likely to change suddenly
Example
He kept his hand steady while painting the picture.
彼は絵を描いている間、手を安定させていました。
B2 adjective /ˈmɛtrɪk/

metric

メトリック
Meaning
Relating to the metric system of measurement; also, a standard of measurement used to assess performance.
Example
The company tracks success using clear performance metrics.
会社は明確なパフォーマンス指標を使用して成功を追跡しています。
C1 noun /fɑːrs/

farce

茶番
Meaning
a comic dramatic work using buffoonery and horseplay, or a ridiculous situation
Example
The meeting turned into a complete farce with everyone arguing.
会議は完全に茶番に変わり、みんなが議論していた。
C1 noun /ˈstoʊəˌweɪ/

stowaway

密航者
Meaning
A person who hides on a ship, plane, or other vehicle in order to travel secretly without paying.
Example
The crew discovered a stowaway hiding in the cargo hold.
乗組員は貨物室に隠れている密航者を発見しました。
B2 adverb /ˈəʊvəli/

overly

過度に
Meaning
to an excessive degree or extent
Example
She was overly concerned about the results.
彼女は結果について過度に心配していた。
B2 noun /spaɪn/

Spine

背骨; 構造物の中央支柱
Meaning
the backbone or vertebral column of a vertebrate; the central support of a structure
Example
She injured her spine in the accident.
事故で背骨を傷つけました。
A1 verb /ˈstʌdi/

study

勉強する
Meaning
to learn about something; to examine carefully; to research
Example
I study mathematics every evening.
私は毎晩数学を勉強します。
C1 noun /ˈiːɡoʊˌɪzəm/

egoism

利己主義
Meaning
An ethical theory that treats self-interest as the foundation of morality; also, excessive preoccupation with oneself.
Example
His decisions were often driven by egoism rather than concern for others.
彼の決断はしばしば他人への配慮よりも利己主義に駆り立てられていた。
C2 verb /ˈprɒsəˌlaɪtaɪz/

proselytize

改宗させようとする
Meaning
To try to persuade someone to convert to a different belief or religion.
Example
They tried to proselytize the villagers with their new ideas.
彼らは新しいアイデアで村人たちを改宗させようとした。
C1 verb /ˈsʌkɪŋ/

sucking

吸う
Meaning
Drawing in a liquid, air, or other substance through the mouth or a tube by creating a vacuum; also used figuratively for something unpleasant or ineffective
Example
The baby is sucking on a pacifier.
赤ちゃんが乳首を吸っています。
C2 verb /diːˈlɪmɪt/

delimit

境界を設定する
Meaning
to fix the boundaries or limits of something
Example
The treaty was signed to delimit the borders of the two countries.
その条約は二国の境界を定めるために署名されました。
C1 noun /mɪˈrɑːʒ/

Mirage

蜃気楼
Meaning
An optical illusion caused by atmospheric conditions, especially in deserts
Example
The travelers saw a mirage of water in the desert.
旅行者は砂漠で水の蜃気楼を見ました。
C2 adjective /ˌprɛsɪˈdɛnʃəl/

precedential

先例的
Meaning
Relating to, or serving as, a precedent; having authority as an example.
Example
The court’s decision has precedential value.
裁判所の決定は先例的価値を持っています。
C1 verb /bɪˈstoʊ/

bestow

授与する
Meaning
To give or present something as a gift or honor.
Example
The king bestowed honors upon the brave soldiers.
王は勇敢な兵士に栄誉を授けました。
B1 verb /ˈbɑrɡɪn/

bargain

交渉する
Meaning
to negotiate terms; to discuss prices; to make a deal
Example
She likes to bargain at the local market.
彼女は地元の市場で交渉するのが好きです。
C2 noun /lɔːˈdeɪʃən/

laudation

賞賛
Meaning
The act of praising or expressing approval.
Example
The poet received much laudation for his moving verses.
その詩人は感動的な詩で多くの賞賛を受けました。
A1 verb /θroʊ/

throw

投げる
Meaning
to send something through the air with force using your hand
Example
He can throw the ball very far.
彼はボールを非常に遠くに投げることができます。
C2 noun /hɒtʃ pɒtʃ/

Hotch potch

煮込み料理
Meaning
A mixed dish; a hodgepodge of ingredients cooked together
Example
She made a delicious hotch potch with rice, lentils, and vegetables.
彼女はご飯、レンズ豆、野菜で美味しいホッチポッチを作った。
C1 adjective /ɡrəˈtjuːɪtəs/

gratuitous

不必要な
Meaning
Unnecessary, unwarranted, or given freely without reason or cause.
Example
The movie was criticized for its gratuitous violence.
その映画は不必要な暴力で批判された
B2 adjective /ˈdɒm.ɪ.nənt/

Dominant

支配的な; 影響力のある; 最も重要な
Meaning
controlling, influencing, or prevailing over others; most important or powerful
Example
The dominant player controlled the entire basketball game.
支配的な選手はバスケットボールの試合を完全に支配しました。
C1 adjective /ˈdæʃ.ɪŋ/

Dashing

魅力的; スタイリッシュ; 自信に満ちた;
Meaning
stylish and confident; lively and energetic; attractive and charming
Example
He looked dashing in his new suit.
彼は新しいスーツで魅力的に見えました。
A2 noun /rɪˈleɪ.ʃən.ʃɪp/

Relationship

関係
Meaning
the way two people or groups feel and behave towards each other; a connection between two things
Example
They have a very close relationship.
彼らは非常に親密な関係を持っています。
B2 noun ɪkˈspænʃən

expansion

拡張
Meaning
The action of becoming larger or more extensive; growth or development.
Example
Volunteering helps in the expansion of social networks.
ボランティア活動は、社会的ネットワークの拡張に役立ちます。
B2 noun /ˌoʊ.vɚˈkraʊ.dɪŋ/

overcrowding

過密
Meaning
Excessive crowd or packed condition, having more people or vehicles in a place than the approved capacity.
Example
The subway system suffers from severe overcrowding during peak hours.
地下鉄システムはピーク時にひどい過密状態に苦しんでいます。
B2 noun /ˈproʊtəˌtaɪp/

prototype

プロトタイプ
Meaning
The first model or version of something, used as a sample for testing or improvement.
Example
The company built a prototype of the new smartphone before mass production.
会社は大量生産の前に新しいスマートフォンのプロトタイプを作成しました。
C2 verb /ˈsɜːrkəmskraɪb/

circumscribe

制限する
Meaning
to limit or restrict something within boundaries
Example
The rules circumscribe the powers of the committee.
ルールは委員会の権限を制限します。
C2 noun /ˌdɛd ˈhiːt/

dead-heat

引き分け
Meaning
a race or contest in which two or more competitors finish exactly equal
Example
The race ended in a dead-heat between the two runners.
レースは二人のランナーの間で引き分けで終わった。
A1 noun /ˈɡɜːrlfrɛnd/

girlfriend

彼女
Meaning
A woman or girl with whom someone is romantically or emotionally involved.
Example
He introduced his girlfriend to his family.
彼は彼女を家族に紹介した。
C1 adjective /trænˈsen.dənt/

transcendent

通常のまたは単に物理的な人間の経験の範囲を超えている
Meaning
Beyond or above the range of normal or merely physical human experience.
Example
His art has a transcendent quality.
彼の芸術は超越的な品質を持っています。
B1 noun /ˈkɪləɡræm/

kilogram

キログラム
Meaning
the base unit of mass in the metric system equal to 1,000 grams
Example
The bag of rice weighs five kilograms.
その米袋は五キログラムあります。
C1 noun /ˈpɒpjʊləs/

populace

住民
Meaning
the general public; the ordinary people living in a country or area
Example
The new law was welcomed by the local populace.
新しい法律は地元の住民によって歓迎されました。
C2 noun /ˈhæbɪtənt/

habitant

住民
Meaning
An inhabitant; a person or animal that lives in a particular place.
Example
The habitants of the village were friendly and welcoming.
村の住民は親切で歓迎してくれました。
B1 noun /ˈspɪr.ɪt/

Spirit

精神; 魂; 熱意; 勇気
Meaning
the non-physical part of a person; enthusiasm or courage; the essential character of something
Example
The team showed great spirit despite losing the match.
チームは試合に負けても素晴らしいスピリットを見せました。
A2 adjective /ˈsep.ər.ət/

Separate

別々; 異なる; 個別; 分離
Meaning
distinct; not connected; individual; apart
Example
Please keep your personal and professional lives separate.
個人的な生活とプロフェッショナルな生活は分けておいてください。
B1 noun /ˈdrɛsɪŋ/

dressing

ドレッシング / 調味料の混合物
Meaning
a sauce for salads; or material used to cover a wound
Example
She prepared a delicious salad with Italian dressing.
彼女はイタリアンドレッシングで美味しいサラダを作った。
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。
B1 adjective /ˈkɒmplɪˌkeɪtɪd/

complicated

複雑
Meaning
consisting of many interconnected parts; difficult to understand
Example
The instructions for the machine are too complicated to follow.
機械の指示は従うにはあまりにも複雑です。
C2 verb /rɪˈpaɪn/

repine

嘆く
Meaning
To feel or express discontent or to long for something.
Example
She did not repine at her misfortune but worked harder to improve her life.
彼女は不幸を嘆かず、より一生懸命に働いて生活を向上させました。
B2 adverb /mɪdst/

Midst

真ん中で; その中で
Meaning
in the middle of; among
Example
She stood in the midst of the crowd.
彼女は群衆の真ん中に立っていました。
C1 adjective /ˌɪndɪˈstɪŋkt/

indistinct

不明瞭な
Meaning
Not clear or sharply defined; vague or blurred.
Example
The sound of voices was indistinct in the distance.
遠くからの声は不明瞭でした。
C1 verb /əˈflɪkt/

afflict

苦しめる
Meaning
to cause pain, suffering, or distress to someone or something
Example
Many people are afflicted by seasonal allergies.
多くの人々が季節性アレルギーに悩まされています。
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。
C1 verb /ˌriːɪnˈsteɪt/

reinstate

再雇用する
Meaning
To restore someone or something to their former position or condition.
Example
The company decided to reinstate the suspended employee.
その会社は停止された従業員を再雇用することを決定した。
C1 adjective /ˈstoʊɪk/

stoic

冷静な, 無感情な
Meaning
Showing little or no emotion, even in difficult situations.
Example
She remained stoic during the crisis, never showing fear or panic.
彼女は危機の間、冷静で恐怖やパニックを示さなかった。
C1 noun /ɪkˈspɛktənsi/

expectancy

期待
Meaning
the state of expecting something; anticipation or likelihood
Example
There was a sense of expectancy in the room before the results were announced.
結果が発表される前、部屋には期待の感覚があった。
B2 verb /ɪˈlɪmɪneɪt/

eliminate

排除
Meaning
To completely remove or get rid of something.
Example
Eliminate time-wasting habits.
時間を無駄にする習慣を排除してください。
C1 verb /rɪˈprɛs/

repress

Meaning
To restrain, suppress, or keep under control, especially emotions or desires.
Example
He tried to repress his anger during the meeting.
C1 verb /ˈæmbʊʃ/

ambush

待ち伏せする
Meaning
To attack suddenly and unexpectedly from a hidden position.
Example
The soldiers planned to ambush the enemy at dawn.
兵士たちは夜明けに敵を待ち伏せする計画を立てた。
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。
C1 noun /fɪˈnɑːleɪ/

finale

フィナーレ
Meaning
the last part or conclusion of a performance, event, or series
Example
The concert ended with a spectacular finale.
コンサートは壮観なフィナーレで終わりました。
C2 adjective /ɪnˈkoʊ.ɪt/ or /ɪnˈkoʊ.eɪt/

inchoate

未完成
Meaning
Just begun and not fully formed; rudimentary.
Example
His inchoate ideas needed more research to be developed.
彼の未完成のアイデアは、さらに開発するためにもっと研究が必要だった。
B2 noun /ˈɒt.ər/

Otter

カワウソ
Meaning
a mammal with webbed feet that lives near water and feeds on fish
Example
The playful otter swam gracefully in the river.
遊び好きなカワウソは川で優雅に泳いでいました。
C1 verb /səˈlɪsɪt/

solicit

お願いする
Meaning
to ask for or try to obtain something from someone
Example
The charity is soliciting donations for flood victims.
チャリティは洪水の被害者のために寄付を募っています。
C1 noun /ˈʌndərˌɡɑːrmənt/

undergarment

下着
Meaning
a piece of clothing worn under outer clothes, usually next to the skin
Example
He bought new undergarments for the wedding.
彼は結婚式のために新しい下着を買いました。
C1 verb /ˈθiːəraɪz/

theorize

理論化する
Meaning
To form a theory or set of ideas to explain something.
Example
Scientists often theorize about the origins of the universe.
科学者たちはしばしば宇宙の起源について理論化します。
A2 noun /prəˈdʌkʃən/

production

制作
Meaning
the process of manufacturing or creating something
Example
The production of this film took over a year.
この映画の制作には1年以上かかりました。
C2 noun /meɪˈlɑːnʒ/

melange

混合
Meaning
A mixture of different things or styles.
Example
The festival offered a melange of music, food, and art.
そのフェスティバルでは、音楽、食べ物、アートの混合が提供されました。
C1 verb /ˌkɒndɪˈsɛnd/

condescend

上から目線で親切にする
Meaning
to behave as if one is superior while being gracious to others
Example
He would not condescend to answer such a trivial question.
彼はそんな些細な質問に答えることをしなかった。
C2 adjective /ˈdɪfɪdənt/

diffident

Meaning
Shy or lacking confidence in one's own abilities.
Example
He was too diffident to ask a question in class.
C2 noun /ˈseɪnjər/

seignior

封建領主
Meaning
A feudal lord; a man of authority in medieval Europe.
Example
The seignior demanded taxes from the peasants.
封建領主は農民から税金を要求した。
C1 adjective /ˈfɪs.kəl/

fiscal

財政の
Meaning
Relating to government revenue, especially taxes, or public money management.
Example
The government introduced new fiscal policies to control inflation.
政府はインフレを抑制するために新しい財政政策を導入しました。
B2 verb /flɪp/

flip

ひっくり返す
Meaning
to turn over quickly or suddenly; to toss lightly
Example
She flipped the pancake in the pan.
彼女はパンケーキをフライパンでひっくり返した。
C2 noun /ˈbrɒŋkəs/

bronchus

気管支
Meaning
either of the two main branches of the trachea that lead directly into the lungs
Example
The left bronchus carries air into the left lung.
左気管支は左肺に空気を運びます。
A1 verb /liːv/

leave

出発する
Meaning
to go away from; to depart or exit
Example
The train leaves at 6 PM.
電車は午後6時に出発します。
C2 noun /ˈkɒntrəriz/

contraries

対立する物事
Meaning
things that are completely different or opposite to each other
Example
Freedom and slavery are contraries in every sense.
自由と奴隷制度はすべての点で対立しています。
C2 noun /ˈdɒɡ roʊz/

Dog-rose

ドッグローズ
Meaning
A wild rose species with pink or white flowers and thorny stems, common in hedgerows
Example
The dog-rose bush grew wild along the countryside path.
ドッグローズの低木は、田舎の道沿いに野生で育ちました。
A2 noun /ˈɒbdʒɪkt/

object

物体
Meaning
a thing that can be seen and touched
Example
The table is an object in the room.
テーブルは部屋の中の物体です。
C2 noun /ˈaɪdɪl/

idyll

田園詩的なシーン
Meaning
An extremely happy, peaceful, or picturesque episode or scene, often idealized.
Example
Their honeymoon was an idyll on a tropical island.
彼らのハネムーンは熱帯の島での田園詩的なシーンでした。
A1 adverb /ˈsʌm.taɪmz/

Sometimes

時々
Meaning
at times; occasionally; now and then
Example
Sometimes I go for a walk in the evening.
時々、私は夕方に散歩します。
B2 noun, verb /steɪk/

stake

株式, リスク
Meaning
A share or interest in a business or venture; to risk or support something of value.
Example
He has a major stake in the new company.
彼は新しい会社に大きな利害関係を持っています。
B1 adjective /ˈɛd.jʊ.keɪ.tɪd/

educated

教育を受けた
Meaning
Having received a good level of formal schooling or training; knowledgeable
Example
She is an educated woman who values lifelong learning.
彼女は教育を受けた女性で、生涯学習を重視しています。
B2 verb /skwɒʃ/

squash

潰す
Meaning
to crush or squeeze something with force so that it becomes flat or broken
Example
She accidentally squashed the bug with her shoe.
彼女はうっかり靴で虫を潰しました。
C1 noun /ˈmoʊɡəl/

mogul

大物
Meaning
A powerful or influential person, especially in business or media.
Example
He became a tech mogul by founding a billion-dollar company.
彼は10億ドルの会社を創業してテクノロジーの大物になった。
C1 adjective ˌɪn.krəˈmen.təl

incremental

増分的
Meaning
Relating to or denoting an increase or addition, especially one of a series on a fixed scale; proceeding in small stages.
Example
Incremental changes ensure sustainability.
増分的な変化は持続可能性を確保します。
C1 verb /ˈpændər/

pander

おべっかを使う, ごますりする
Meaning
to indulge or exploit the weaknesses, desires, or immoral tendencies of others
Example
The politician was accused of pandering to voters' fears.
その政治家は有権者の恐怖におもねっていると非難された。
B2 adjective /ɪˈrɪˌspɑn.sə.bəl/

Irresponsible

無責任
Meaning
lacking a sense of responsibility; careless
Example
It was irresponsible of him to leave without telling anyone.
彼が誰にも言わずに去ったのは無責任だった。
B1 noun /ˈdɛkeɪd/

decade

十年
Meaning
A period of ten years.
Example
The country has changed a lot in the past decade.
その国は過去10年間で大きく変わりました。
B1 adjective /ˈel.dər.li/

Elderly

高齢者; 年配; 高齢
Meaning
aged; advanced in years; old
Example
The elderly man walked slowly with his cane.
その高齢の男性は杖を使ってゆっくり歩いていました。
C2 noun /ˌɪn.strəˈmɛn.təl.ɪst/

instrumentalist

楽器奏者
Meaning
A person who plays a musical instrument.
Example
The instrumentalist played a beautiful solo on the violin.
楽器奏者はバイオリンで美しいソロを演奏しました。
B2 verb /ˈælaɪ/

ally

味方
Meaning
To unite or form a connection or partnership with another person, group, or nation.
Example
The two countries decided to ally against their common enemy.
二国は共通の敵に対して連携することを決定した。
B2 noun /ˈbrɛkdaʊn/

breakdown

故障
Meaning
a failure or collapse of a system or machinery
Example
The car had a breakdown on the highway.
車は高速道路で故障しました。
B1 noun /ˈsɛntɪˌmiːtər/

centimeter

センチメートル
Meaning
A metric unit of length equal to one hundredth of a meter.
Example
The table is 120 centimeters long.
テーブルは120センチメートルの長さです。
B1 adverb /əˈprɒk.sɪ.mət.li/

approximately

おおよそ
Meaning
used to show that something is almost, but not completely, accurate or exact
Example
The journey takes approximately three hours.
旅行はおおよそ3時間かかります。
A2 noun /vɔɪs/

voice

声
Meaning
the sound produced by the vocal cords; the ability to speak or express oneself
Example
She has a beautiful voice that captivates the audience.
彼女には観客を魅了する美しい声があります。
C1 noun /kwɔːrˈtɛt/

quartet

カルテット
Meaning
A group of four people playing music or singing together.
Example
The string quartet performed beautifully at the concert.
弦楽四重奏団はコンサートで素晴らしい演奏をしました。
B2 noun ˈlɒŋ tɜːm ˈmɛm.ər.i

Long-term memory

長期記憶
Meaning
Such memory that remains stored in the brain for a long time
Example
Repeated practice helps transfer information into long-term memory.
繰り返しの練習が情報を長期記憶に転送するのを助けます。
A2 adjective /meɪn/

main

主要な
Meaning
most important; chief in size, extent, or importance
Example
The main reason for his success is hard work.
彼の成功の主な理由は、努力したことです。
B1 adverb /ˌɔːtəˈmætɪkli/

automatically

自動的に
Meaning
without human control or intervention; done by itself
Example
The door closes automatically after you enter.
ドアは自動的に閉まります。
C1 noun /ˌmiːdɪˈeɪʃən/

mediation

仲裁
Meaning
Intervention between parties to promote reconciliation, settlement, or compromise.
Example
The mediation helped resolve the conflict between the two teams.
その仲裁は二つのチーム間の対立を解決するのに役立ちました。
B2 adjective /ɪɡˈzɔː.stɪd/

exhausted

疲れ果てた
Meaning
Extremely tired; having no energy left.
Example
Feeling exhausted after waking up is common.
目が覚めた後に疲れ果てたと感じるのはよくあることです。
C2 adjective /ˈɛksɪdʒənt/

exigent

緊急
Meaning
demanding immediate action or attention; urgent
Example
The patient’s exigent condition required immediate surgery.
患者の緊急状態は即時の手術を必要としました。
B2 verb /kənˈtæmɪneɪt/

contaminate

Meaning
To make something impure, dirty, or harmful by contact with a poisonous or polluting substance.
Example
The river was contaminated by industrial waste.
B2 verb /əˈvɜːrt/

avert

避ける
Meaning
to prevent something bad from happening or to turn away one's eyes or thoughts
Example
Quick action helped avert a disaster.
迅速な対応が災害を回避する手助けとなった。
C1 adjective ˈɒptɪmaɪzd

optimized

最適化, 改善, より効率的
Meaning
Made as fully perfect, functional, or effective as possible; improved to achieve maximum efficiency.
Example
The system has been optimized for faster performance.
システムはより速いパフォーマンスのために最適化されました。
C1 noun ˌsæn.ɪ.taɪˈzeɪ.ʃən

sanitization

衛生管理
Meaning
The process of cleaning and disinfecting to eliminate germs and bacteria.
Example
Regular sanitization keeps appliances germ-free.
定期的な衛生管理により、機器が無菌状態に保たれます。
C2 adjective /ˈθrɛdˌbɛr/

threadbare

過度な使用で薄くて擦り切れた
Meaning
Worn out and thin from too much use; shabby.
Example
His threadbare coat could not keep him warm in winter.
彼の擦り切れたコートは冬に彼を温かく保つことができませんでした。
C1 noun /ˌdʒʊə.rɪsˈdɪk.ʃən/

Jurisdiction

管轄
Meaning
the official power to make legal decisions and judgments; the extent of this power
Example
This case falls under the jurisdiction of the federal court.
このケースは連邦裁判所の管轄下にあります。