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C1 verb dɪˈsaɪ.fɚ

decipher

解読する, 暗号を解く, 翻訳する
Meaning
To convert something written in code into normal language; to succeed in understanding the meaning of something.
Example
It took hours to decipher the ancient script.
古代の文字を解読するのに何時間もかかりました。
C1 noun /rɪˈfaɪnəri/

refinery

製油所
Meaning
an industrial facility where raw materials are processed and purified
Example
The oil refinery processes thousands of barrels daily.
石油精製所は毎日何千バレルもの石油を処理します。
C1 noun /rɪˈsaɪtl/

recital

リサイタル
Meaning
A performance of music, dance, or poetry, usually by a soloist.
Example
She gave a piano recital at the concert hall.
彼女はコンサートホールでピアノのリサイタルを行いました。
C1 verb /ˈflʌtər/

flutter

羽ばたく / 震える
Meaning
to move or flap quickly and lightly; to beat or wave with small rapid motions
Example
The butterfly began to flutter its wings in the sunlight.
蝶が日光の中で羽ばたき始めた。
C1 adjective /ˈnjʊrəl/

neural

Meaning
Relating to nerves or the nervous system.
Example
Scientists study neural connections in the brain.
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。
C1 adjective /ˈplʌk.i/

plucky

勇敢
Meaning
having or showing courage and determination
Example
The plucky child rescued the kitten from the tree.
勇敢な子供が木から子猫を救いました。
C1 verb /ˈtɛðər/

tether

繋ぐ
Meaning
To tie an animal with a rope or chain so it cannot move far.
Example
The farmer tethered the goat to a post.
農夫はヤギを柱に繋ぎました。
C1 noun/verb /kroʊˈʃeɪ/

crochet

Meaning
Needlework made by interlocking loops of thread with a hooked needle; the act of making such items.
Example
She learned how to crochet a scarf for winter.
C1 verb /praɪ/

pry

覗く / 口出しする
Meaning
to look closely into something; to try to find out private information
Example
She tried to pry into her neighbor’s private life.
彼女は隣人のプライベートな生活を覗こうとした。
C1 noun /ɪˈnɪɡ.mə/

enigma

謎
Meaning
A person or thing that is mysterious, puzzling, or difficult to understand.
Example
Life remains an enigma to many.
人生は多くの人にとって謎のままです。
C1 adjective /ˈædʒ.aɪl/

agile

素早く柔軟
Meaning
able to move quickly and easily; quick and adaptable in thinking or action
Example
The startup team was agile in responding to market changes.
スタートアップチームは市場の変化に迅速に対応しました。
C1 adjective /ˌjuːnɪˈsɛljʊlər/

unicellular

単細胞
Meaning
Consisting of a single cell.
Example
Amoebas are unicellular organisms.
アメーバは単細胞生物です。
C1 adjective /ˈten.tə.tɪv/

Tentative

仮の; 不確かな
Meaning
not certain or fixed; provisional; hesitant or unsure
Example
We made tentative plans to meet next week.
私たちは来週会うための仮の計画を立てました。
C1 noun/verb /dɪsˈkwaɪət/

disquiet

Meaning
A feeling of worry or unease; to make someone feel anxious or uneasy.
Example
The strange silence filled the room with disquiet.
C1 adverb /ˈmerɪli/

Merrily

楽しそうに
Meaning
in a cheerful and joyful manner
Example
The children played merrily in the garden.
子供たちは庭で楽しそうに遊んでいました。
C1 noun /ˈkæmi.oʊ/

cameo

カメオ
Meaning
a small but significant role in a play, film, or show, often performed by a well-known person
Example
The actor made a surprise cameo in the movie.
その俳優は映画でサプライズのカメオを果たした。
C1 noun /ˈleɪ.mən/

Layman

素人; 専門的な知識のない人
Meaning
a person without professional or specialized knowledge in a particular subject
Example
The doctor explained the procedure in layman's terms.
医師はその手順を素人向けの言葉で説明しました。
C1 verb /dɔːnt/

daunt

脅す
Meaning
to make someone feel intimidated, discouraged, or less confident
Example
The steep climb did not daunt the experienced hikers.
急な登りは経験豊富なハイカーを怖がらせませんでした。
C1 adjective /sɑːrˈdɒnɪk/

sardonic

幸福
Meaning
Grimly mocking or cynical.
Example
She gave him a sardonic smile after hearing his excuse.
彼女は賞を受け取ったとき、自分の幸福を隠すことができませんでした。
C1 noun /ˈjuː.fə.mɪ.zəm/

euphemism

直接的または厳しい言葉の代わりに使われる穏やかで間接的な言葉
Meaning
A mild or indirect term substituted for one considered too harsh or direct; polite expression for something unpleasant.
Example
The phrase "passed away" is a euphemism for "died".
'亡くなった'という言葉は'死んだ'のユーフェミズムです。
C1 adjective /ˈpæl.ɪd/

Pallid

顔色が悪い、特に健康が悪いことによる；物質や活力が欠けている
Meaning
pale, especially because of poor health; lacking substance or vitality
Example
His pallid complexion showed signs of illness.
彼の顔色は病気の兆候を示していました。
C1 adjective /ˈɒm.ɪ.nəs/

Ominous

不吉な; 脅威の
Meaning
giving the impression that something bad will happen; threatening; foreboding
Example
The dark clouds looked ominous before the storm.
嵐の前に、暗い雲は不吉に見えました。
C1 noun ˌmɪs.kənˈsɛp.ʃən

misconception

誤解
Meaning
A wrong idea or false understanding about something.
Example
There is a common misconception that success happens overnight.
成功は一夜にして成るという誤解が広まっている。
C1 verb /ˈɒs.ɪ.leɪt/

oscillate

二つの点または状態の間で前後に動くまたは揺れる
Meaning
To swing or move back and forth between two points or states
Example
The stock market tends to oscillate during uncertain times.
株式市場は不確実な時期に振動しがちです。
C1 adjective /steɪd/

staid

堅実、尊敬される
Meaning
Serious, respectable, and unadventurous.
Example
He came from a staid family background.
彼は堅実な家庭から来た。
C1 verb /ˈpʌlseɪt/

pulsate

脈動する
Meaning
to expand and contract rhythmically; to throb or beat
Example
The neon lights pulsated with a steady rhythm.
ネオンのライトは一定のリズムで脈打っていた。
C1 noun/verb /ˈkætəpʌlt/

catapult

カタパルト
Meaning
A device for launching objects at high speed; to hurl or launch something suddenly.
Example
The invention catapulted him to international fame.
その発明は彼を国際的な名声へとカタパルトした。
C1 noun /ˈkiːpˌseɪk/

keepsake

記念品
Meaning
An object kept as a reminder of a person, place, or event.
Example
She gave me a small locket as a keepsake of our friendship.
彼女は私たちの友情の記念として小さなロケットをくれました。
C1 adverb /ʌnˈnætʃrəli/

unnaturally

不自然に
Meaning
in a way that is not natural or normal; excessively or strangely
Example
He smiled unnaturally, making everyone feel uncomfortable.
彼は不自然に笑い、皆を居心地悪くさせた。
C1 adjective /ˈruːfəl/

rueful

後悔した
Meaning
Expressing sorrow, regret, or pity.
Example
He gave a rueful smile after losing the match.
試合に負けた後、彼は後悔の笑顔を見せた。
C1 noun /ˈnɑːrsɪsɪst/

narcissist

ナルシシスト
Meaning
A person who has an excessive interest in or admiration of themselves.
Example
Everyone avoided him because he was a narcissist.
みんな彼を避けていた、なぜなら彼はナルシシストだったから。
C1 adjective /pərˈvɜːrs/

perverse

倒錯
Meaning
showing a deliberate desire to behave in a way that is unreasonable, contrary, or unacceptable
Example
He took a perverse pleasure in upsetting his colleagues.
彼は同僚を困らせることに倒錯した喜びを感じていた。
C1 noun /prɒɡˈnoʊsɪs/

prognosis

予後
Meaning
A forecast of the likely outcome of a disease or situation.
Example
The doctor gave a positive prognosis for the patient's recovery.
医者は患者の回復に対してポジティブな予後を示した。
C1 adjective /ˌkætəˈklɪzmɪk/

cataclysmic

壊滅的
Meaning
Relating to or denoting a violent natural event or upheaval.
Example
The war had cataclysmic effects on the nation's economy.
戦争は国の経済に壊滅的な影響を与えた。
C1 noun /ˈpɔːr.kjə.paɪn/

Porcupine

ヤマアラシ
Meaning
a large rodent with defensive spines or quills on its body
Example
The porcupine raised its quills when threatened.
ヤマアラシは脅威を感じると針を立てた。
C1 noun /ɪˈleɪʃən/

elation

興奮
Meaning
A feeling of great happiness and excitement.
Example
His elation was evident after winning the championship.
彼の興奮はチャンピオンシップに勝った後、明らかだった。
C1 adjective /səbˈvɜːrsɪv/

subversive

破壊的
Meaning
seeking or intended to undermine or overthrow an established system or authority
Example
The group was banned for its subversive activities.
そのグループは破壊的な活動のために禁止された。
C1 adjective /ˈrɛtɪsənt/

reticent

控えめ
Meaning
not revealing one's thoughts or feelings readily; reserved
Example
She was reticent about her personal life.
彼女は自分の個人的な生活について控えめでした。
C1 noun /ˈdeɪ.ə.ti/

deity

神
Meaning
a god or goddess
Example
The temple is dedicated to a Hindu deity.
その寺院はヒンドゥー教の神に捧げられています。
C1 adjective /æbˈdɑː.mə.nəl/

abdominal

腹部の
Meaning
relating to the abdomen (the part of the body between the chest and pelvis)
Example
He complained of severe abdominal pain.
彼はひどい腹痛を訴えていました。
C1 verb /dɪˈfeɪs/

deface

傷つける
Meaning
to spoil the surface or appearance of something, especially by writing or drawing on it
Example
The vandals defaced the wall with graffiti.
ヴァンダルたちはグラフィティで壁を傷つけました。
C1 noun /ˈkɒz.moʊs/

Cosmos

コスモスの花
Meaning
a colorful annual flower with daisy-like blooms and feathery foliage
Example
The cosmos flowers swayed gently in the summer breeze across the meadow.
コスモスの花は夏の風にそよいで、草地を横切っていました。
C1 verb /ˈstriːmlaɪnɪŋ/

streamlining

簡素化
Meaning
The process of making an organization or system more efficient by simplifying or eliminating unnecessary steps
Example
Streamlining processes can significantly reduce operational costs.
プロセスの簡素化は、運用コストを大幅に削減することができます。
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。
C1 verb /dʌb/

dub

吹き替え
Meaning
to give a name or label to something; to add a soundtrack to a film or recording
Example
The movie was dubbed into several languages for international release.
その映画は国際公開のためにいくつかの言語に吹き替えられました。
C1 noun ˈprəʊses stəˈbɪlɪti

process stability

プロセスの安定性
Meaning
The consistency and steadiness of biological or functional processes
Example
Cold air ensures process stability in plants.
冷たい空気は植物のプロセスの安定性を確保します。
C1 noun /səˈrɛn.ɪ.ti/

serenity

静けさ
Meaning
The state of being calm, peaceful, and untroubled.
Example
Meditation helps in achieving inner serenity.
瞑想は内面的な静けさを達成するのに役立ちます。
C1 noun /ˈstɪklər/

stickler

規則にうるさい人
Meaning
a person who insists on a certain quality or standard of behavior
Example
He is a stickler for punctuality and never tolerates delays.
彼は時間にうるさく、遅れを許しません。
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 /ˌsɛlf əˌfɜːˈmeɪʃən/

self-affirmation

自己肯定
Meaning
The practice of affirming one's own worthiness and value as an individual.
Example
Daily self-affirmation can boost your confidence.
日々の自己肯定は自信を高めることができます。
C1 adjective /ˈtɒrɪd/

torrid

非常に暑く乾燥している; 強い感情や情熱に満ちている
Meaning
Very hot and dry; full of strong emotions or passion.
Example
The desert heat was torrid during the day.
砂漠の熱は昼間非常に暑かった。
C1 verb /weɪv/

waive

幸せ
Meaning
to refrain from insisting on or enforcing something, especially a right or claim
Example
She decided to waive her right to a lawyer.
彼女は賞を受け取ったとき、幸せを隠すことができませんでした。
C1 adjective ˈkʌm.bə.səm

cumbersome

重い、扱いにくい、運ぶのが難しい
Meaning
Heavy, unwieldy, difficult to handle or carry.
Example
The cumbersome luggage slowed him down.
重い荷物が彼を遅くした。
C1 adjective /stɔːntʃ/

staunch

堅固な, 忠実な
Meaning
Loyal, committed, and firm in support.
Example
She is a staunch supporter of environmental protection.
彼女は環境保護の強固な支持者です。
C1 adjective /ˈdeɪnti/

dainty

優雅で可愛らしい
Meaning
Delicately small, pretty, and often considered elegant.
Example
She wore a dainty necklace made of pearls.
彼女は真珠でできた繊細なネックレスをしていました。
C1 adjective /ˌɪndɪˈstrʌktəbl/

indestructible

壊れない
Meaning
Impossible to destroy or break.
Example
The superhero's shield was said to be indestructible.
スーパーヒーローの盾は壊れないと言われていました。
C1 noun /ˌɪmɔːrˈtæləti/

immortality

不死; 永遠の命
Meaning
the state of living forever; eternal life or lasting fame beyond death
Example
Many ancient cultures believed that heroes could achieve immortality through great deeds.
多くの古代文化では、英雄が偉業によって不死を得られると信じられていた。
C1 noun /bɪˈtreɪər/

Betrayer

裏切り者; 不忠者
Meaning
a person who betrays someone or something; one who is disloyal
Example
The betrayer was exposed and faced severe consequences.
裏切り者は暴露され、厳しい結果に直面しました。
C1 adjective /ˌniːoʊˈlɪθɪk/

neolithic

新石器時代の
Meaning
Relating to the later part of the Stone Age, when ground or polished stone weapons and tools prevailed.
Example
Neolithic communities began practicing agriculture and domesticating animals.
新石器時代のコミュニティは農業を行い、動物を飼いならし始めた。
C1 adjective /ɪˈrɛpərəbəl/

Irreparable

修復不可能
Meaning
impossible to repair or fix; permanent damage that cannot be undone
Example
The accident caused irreparable damage to his spine.
その事故は彼の背骨に修復不可能な損傷を与えました。
C1 adjective /ˈɪəri/

eerie

不気味
Meaning
Strange and frightening in a mysterious way.
Example
The abandoned house had an eerie silence.
放棄された家には不気味な静けさがあった。
C1 adjective /ˈtɪpsi/

tipsy

ほろ酔い
Meaning
slightly drunk
Example
She felt tipsy after just one glass of wine.
ワインを一杯飲んだ後、彼女は少し酔った気がした。
C1 adjective ˈpɪv.ə.təl

pivotal

重要な
Meaning
Of crucial importance in relation to the development or success of something else.
Example
Renewable energy plays a pivotal role in sustainability.
再生可能エネルギーは持続可能性において重要な役割を果たしています。
C1 noun /sʌˈmeɪʃən/

summation

合計, 要約
Meaning
The process of adding things together; a summary of points.
Example
The lawyer gave a powerful summation of the case.
弁護士は事件の強力な要約を行った。
C1 noun /ˈtɛknɪk/

technic

技術
Meaning
A method, skill, or art in a particular field, especially in the arts or sciences.
Example
The artist’s technic in watercolor impressed the judges.
水彩画のアーティストのテクニックは審査員に感銘を与えた。
C1 noun ˈsæŋktɪti

sanctity

神聖さ
Meaning
The state or quality of being holy, sacred, or saintly; ultimate importance.
Example
The sanctity of life should never be compromised.
命の神聖さは決して妥協されるべきではない。
C1 noun /ˈprɒspɛktər/

prospector

鉱物探鉱者
Meaning
a person who searches for mineral deposits, especially gold
Example
The prospector spent years in the mountains searching for gold.
プロスペクターは金を探し続けるために山中で何年も過ごしました。
C1 adverb /ˈvælɪdli/

validly

有効に
Meaning
in a legally, logically, or officially acceptable manner
Example
The contract was validly signed by both parties.
契約は両当事者によって有効に署名されました。
C1 adjective /ˈreɪdiənt/

radiant

輝く
Meaning
Shining brightly; expressing great happiness.
Example
She looked radiant in her wedding dress.
彼女はウェディングドレスで輝いて見えました。
C1 noun, verb /dɪsˈɑːnər/

dishonor

Meaning
a state of shame or loss of respect; to bring shame upon someone or something
Example
The soldier felt he had brought dishonor to his family.
C1 noun /hʌl/

hull

船体 / 種の殻
Meaning
The outer covering of a seed or fruit; also the main body of a ship.
Example
The sailors inspected the ship’s hull for any damage.
船員たちは船体に損傷がないかを調べました。
C1 verb /ɪˈnjuːməˌreɪt/

enumerate

列挙する
Meaning
to mention things one by one; to list or count
Example
She enumerated the reasons for her decision.
彼女は決定の理由を列挙した。
C1 noun /ɡriːn ˈkəʊ.kə.nʌt/

Green Coconut

緑のココナッツ
Meaning
a young coconut with green outer shell containing refreshing coconut water
Example
We drank fresh water from a green coconut on the beach.
私たちはビーチで緑のココナッツから新鮮な水を飲みました。
C1 noun ˌmɒdɪfɪˈkeɪʃn

modification

修正
Meaning
The action of making changes to something.
Example
The plan required modification.
計画には修正が必要でした。
C1 adjective ˌsʌbˈlɪm.ɪ.nəl

subliminal

意識の閾値以下で存在または作用し、無意識に心に影響を与える
Meaning
Existing or operating below the threshold of consciousness; perceived by or affecting someone's mind without their being aware of it.
Example
Advertisements often have subliminal messages.
広告にはしばしばサブリミナルメッセージが含まれています。
C1 verb /ˈɡlɔːrɪfaɪ/

glorify

讃える
Meaning
to praise or honor someone or something; to make something seem better than it is
Example
The movie glorifies war heroes.
その映画は戦争の英雄を美化している。
C1 verb /ˌdɪsɪnˈɡeɪdʒ/

disengage

解放する
Meaning
To release or detach oneself from something; to withdraw.
Example
He tried to disengage from the heated argument.
彼は熱い議論から解放しようとした。
C1 verb /bɪˈriːv/

bereave

大切な人を失う
Meaning
to deprive someone of a loved one through death
Example
She was bereaved of her husband last year.
彼女は昨年、夫を亡くしました。
C1 verb /kənˈtraɪv/

contrive

考案する
Meaning
to plan or devise cleverly or skillfully
Example
She contrived a clever plan to surprise her friends.
彼女は友達を驚かせるために賢い計画を思いついた。
C1 noun ˈiːkəʊˌsɪstəm ˈsɜːvɪsɪz

ecosystem services

生態系サービス
Meaning
The benefits people obtain from ecosystems.
Example
Forests provide valuable ecosystem services, such as purifying air and water.
森林は空気と水を浄化するなど、貴重な生態系サービスを提供します。
C1 noun /bɜːrθ/

Berth

寝台; 船、列車、または他の乗り物で寝る場所
Meaning
a sleeping place in a ship, train, or other vehicle; a place where a ship can dock
Example
I booked an upper berth on the overnight train.
私は夜行列車で上段の寝台を予約しました。
C1 adjective /ˈtʌf.tɪd/

Tufted

小さな束がついた; 束を使った
Meaning
having a tuft or tufts; furnished with a tuft or clump of threads, hairs, or other material
Example
The tufted sofa looked elegant in the living room.
小さな束がついたソファはリビングルームで優雅に見えました。
C1 noun /ˈɒn.slɔːt/

onslaught

猛攻
Meaning
A fierce or destructive attack.
Example
The village faced an onslaught of enemy forces.
その村は敵軍の猛攻に直面しました。
C1 noun /ˈvaɪəˌleɪtər/

violator

違反者
Meaning
A person who breaks or disregards a law, rule, or agreement.
Example
The police caught the traffic violator at the intersection.
警察は交差点で交通違反者を捕まえました。
C1 noun /ˈlɔːriət/

laureate

受賞者
Meaning
A person honored with an award for outstanding achievement in a field, especially the arts or sciences.
Example
The Nobel laureate gave an inspiring lecture on peace.
ノーベル賞受賞者は平和について感動的な講演を行いました。
C1 noun /krɪpt/

crypt

地下室
Meaning
an underground chamber, especially one beneath a church, used as a burial place
Example
The tourists explored the ancient crypt beneath the cathedral.
観光客は大聖堂の下にある古代の地下室を探索しました。
C1 adjective /ɪnˈedəbəl/

Inedible

食べられない
Meaning
not suitable or safe for eating; not edible
Example
The mushrooms were poisonous and completely inedible.
そのキノコは毒性があり、完全に食べられないものでした。
C1 verb /dɪˈteɪn/

detain

Meaning
to keep someone from proceeding; to hold back, especially by official authority
Example
The police detained the suspect for questioning.
C1 noun /vɛnˈdɛtə/

vendetta

復讐
Meaning
a prolonged bitter quarrel or campaign of revenge
Example
The two families were caught in a bitter vendetta for generations.
二つの家族は何世代にもわたり、苦い復讐に巻き込まれていた。
C1 adverb /ˌðeərəˈpɒn/

Thereupon

その後すぐに;
Meaning
immediately after that; following that event
Example
He finished his speech and thereupon left the stage.
彼はスピーチを終え、その後すぐにステージを離れました。
C1 adjective /ˈrʌs.tɪk/

Rustic

シンプルで洗練されていない; 農村地域に関連
Meaning
simple and unsophisticated; relating to rural areas
Example
The rustic cottage had wooden beams and a thatched roof.
そのラスティックな小屋は木製の梁と藁葺きの屋根を持っていた。
C1 noun /ˈoʊ.vər spɪl/

Over-spill

オーバーフロー
Meaning
the overflow of liquid from a container; excess that cannot be contained
Example
The overspill from the river flooded nearby farms.
川の溢れが近くの農場を水浸しにした。
C1 adjective ˌnɒnˈvɜːr.bəl

nonverbal

非言語
Meaning
Communication using body language, facial expressions, or gestures instead of words
Example
Nonverbal cues play a crucial role in effective communication.
非言語の合図は効果的なコミュニケーションにおいて重要な役割を果たします。
C1 noun /ˈiːkwɪnɒks/

equinox

昼夜平衡
Meaning
The time or date when day and night are of equal length, occurring twice a year.
Example
The spring equinox marks the beginning of longer days.
春分は長い日が始まることを示します。
C1 verb /ˈkɒnsɔːrt/

consort

Meaning
To associate with someone, typically with disapproval; also, a spouse of a reigning monarch.
Example
He was criticized for consorting with criminals.
C1 adjective /ˈraɪtfəl/

rightful

正当な
Meaning
having a legitimate or just claim; proper or lawful
Example
She is the rightful owner of the property.
彼女はその財産の正当な所有者です。
C1 adjective /rɪˈpliːt/

replete

満ちた
Meaning
Filled or well-supplied with something; abundantly full.
Example
The book is replete with fascinating historical details.
その本は魅力的な歴史的詳細で満ちています。
C1 adjective /ˌtaɪpəˈɡræfɪkəl/

typographical

印刷ミス
Meaning
relating to the style, arrangement, or appearance of printed text
Example
There was a typographical error in the book.
本に印刷ミスがありました。
C1 adverb /ˈnɔːθwədz/

Northwards

北へ
Meaning
towards the north; in a northerly direction
Example
The birds migrate northwards in spring.
鳥たちは春に北へ移動します。
C1 verb /əˈprɛs/

oppress

抑圧する
Meaning
to keep someone down by harsh and unfair use of authority; to suppress
Example
The dictator oppressed the people for decades.
独裁者は何十年も人々を抑圧した。
C1 noun /ˈspɛktər/

specter

幽霊
Meaning
A ghost or spirit; something that causes fear or dread.
Example
The specter of war still haunts the region.
戦争の幽霊は今でもその地域をおびやかしています。
C1 noun /flʌks/

flux

フロー
Meaning
continuous change or movement; the rate of flow of something
Example
The company was in a state of constant flux during the reorganization.
会社は再編成の間、絶え間ない変化の中にありました。
C1 verb /ˈdʒepərdaɪz/

jeopardize

危険にさらす
Meaning
to put something at risk of being damaged or destroyed
Example
His reckless behavior could jeopardize his career.
彼の無謀な行動は彼のキャリアを危険にさらす可能性がある。
C1 noun /prɪˈrɒɡətɪv/

prerogative

特権
Meaning
a special right or privilege exclusive to a particular person or group
Example
It is the manager’s prerogative to make the final decision.
それはマネージャーの権限で最終決定を下すことです。
C1 adjective /ˌdɪktəˈtɔːriəl/

dictatorial

独裁的
Meaning
Having or showing a tendency to tell people what to do in an autocratic way.
Example
His dictatorial style made him unpopular among colleagues.
彼の独裁的なスタイルは、同僚たちの間で不人気だった。
C1 adjective /ˈræmʃækəl/

ramshackle

ぼろぼろ
Meaning
poorly built or maintained; in a state of disrepair
Example
They lived in a ramshackle old house on the edge of town.
彼らは町の端にあるぼろぼろな古い家に住んでいました。
C1 noun /ˈper.ɪ.wɪŋ.kəl/

Periwinkle

ペリウィンクル
Meaning
a small trailing plant with violet-blue or white flowers
Example
Purple periwinkles covered the garden ground beautifully.
紫色のペリウィンクルが美しく庭の地面を覆っていました。
C1 noun,verb /pleɪt/

plait

編み込み
Meaning
a braid of hair or straw; to braid
Example
She decided to plait her hair before the party.
彼女はパーティーの前に髪を編むことに決めました。
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。
C1 noun /ˈɪn.tə.mə.si/

Intimacy

親密さ; 親しみ
Meaning
close familiarity or friendship; closeness; a private cozy atmosphere
Example
The couple valued the emotional intimacy they shared more than material possessions.
そのカップルは物質的な所有物よりも、共有した感情的な親密さを大切にしていました。
C1 adverb, adjective /ˌɪnkɑːɡˈniːtoʊ/

incognito

インコグニート
Meaning
In disguise or with one's identity concealed.
Example
The celebrity traveled incognito to avoid the paparazzi.
有名人はパパラッチを避けるためにインコグニートで旅行した。
C1 adjective /ˈvɑːlətl/

volatile

変動しやすい
Meaning
likely to change rapidly and unpredictably, especially for the worse
Example
The stock market is extremely volatile these days.
株式市場は最近非常に変動しやすいです。
C1 adjective, noun /rɪˈsiːvəbl/

receivable

回収可能
Meaning
Money that is owed to a company and is expected to be paid.
Example
The company's receivables increased significantly this quarter.
会社の売掛金は今四半期に大幅に増加しました。
C1 noun /prɪˈzʌmp.ʃən/

Presumption

推定; 仮定;
Meaning
an idea that is taken to be true without proof
Example
There is a presumption of innocence in the legal system.
法的なシステムには無罪の推定があります。
C1 noun /ˈdɪm.pəl/

Dimple

えくぼ
Meaning
a small depression in the flesh, either one that exists permanently or one that forms when smiling
Example
Her charming dimples appeared whenever she smiled at the children.
彼女の魅力的なえくぼは、子供たちに微笑むたびに現れました。
C1 noun /ˈskælpəl/

scalpel

メス
Meaning
A small and extremely sharp bladed instrument used for surgery and dissection.
Example
The surgeon carefully used a scalpel to make the first incision.
外科医は慎重にメスを使って最初の切開を行いました。
C1 noun /ɡeɪt/

gait

歩き方
Meaning
A person's manner of walking.
Example
His slow gait showed that he was tired.
彼の遅い歩き方は、彼が疲れていることを示していた。
C1 adjective ˌsɪn.əˈdʒɪs.tɪk

synergistic

相乗的な
Meaning
Relating to the interaction of elements that when combined produce a greater effect than the sum of their individual effects.
Example
A synergistic effect occurs when nutrients work together.
相乗的な効果は、栄養素が一緒に働くときに発生します。
C1 verb /kənˈspaɪər/

conspire

共謀する
Meaning
to secretly plan with others to do something harmful or illegal
Example
They conspired to overthrow the government.
彼らは政府を倒すために共謀した。
C1 noun /ˈpriːˌkɜrsər/

precursor

前兆
Meaning
Something or someone that comes before another and indicates the approach of something else.
Example
The steam engine was a precursor to modern trains.
蒸気機関車は現代の列車の前兆でした。