speck
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C1 noun /spɛk/

speck

しみ
Meaning
A very small spot, mark, or particle.
Example
There was a tiny speck of dust on the glass table.
ガラスのテーブルに小さなほこりのしみがあった。
C1 noun /ˈpaɪ.ə.ti/

Piety

信仰心
Meaning
the quality of being religious or reverent; devout religious belief and practice
Example
His piety was evident in his daily prayers.
彼の信仰心は毎日の祈りに明らかでした。
C1 adjective /ˈven.ə.məs/

Venomous

毒性のある; 悪意のある;
Meaning
secreting venom; full of malice or spite; extremely hostile
Example
The venomous snake struck quickly at its prey.
毒ヘビはすばやく獲物を攻撃した。
C1 noun /ˈliːʒən/

lesion

傷
Meaning
An area of damage or abnormal change in the tissue of an organism, often caused by injury or disease.
Example
The doctor examined the skin lesion carefully.
医者は皮膚の傷を注意深く調べました。
C1 adjective /rɪˈbel.jəs/

Rebellious

反抗的な; 不従順な; 権威に反発する;
Meaning
defying authority; resisting control; disobedient;
Example
The rebellious teenager refused to follow his parents' rules.
反抗的なティーンエイジャーは、両親の規則に従うことを拒否した。
C1 noun /ˌɪnkəmˌpætəˈbɪlɪti/

incompatibility

非互換性
Meaning
the state of being unable to exist or work together harmoniously; lack of compatibility
Example
The project failed because of incompatibility between the two software systems.
2つのソフトウェアシステムの非互換性のため、そのプロジェクトは失敗した。
C1 adjective daɪˈvɜː.dʒənt

divergent

異なる
Meaning
Tending to be different or develop in different directions
Example
Divergent policies create challenges in collaboration.
異なる政策は協力に挑戦を生み出します。
C1 noun /hɪm/

hymn

Meaning
A religious song or poem of praise to God or a deity.
Example
The congregation sang a hymn during the morning service.
C1 verb /skʌf/

scuff

擦り傷
Meaning
to mark or scratch the surface of something by rubbing
Example
He scuffed his shoes on the pavement.
彼は歩道で靴を擦り傷をつけた。
C1 verb /ˈstaɪmi/

stymie

妨げる
Meaning
to prevent or hinder the progress of something
Example
The new regulations could stymie small businesses.
新しい規制は小規模なビジネスに障害をもたらす可能性があります。
C1 verb /ˈpɜːrkəleɪt/

percolate

Meaning
To filter gradually through a porous surface or substance; to spread slowly.
Example
The rainwater percolated through the soil into the groundwater.
C1 adjective sɪˈmæn.tɪk

semantic

言語における意味に関連する
Meaning
Related to meaning in language; concerning the interpretation of words and sentences.
Example
AI models use semantic analysis to understand context.
AIモデルはコンテキストを理解するためにセマンティック分析を使用します。
C1 adjective /ˌɪnɑːrˈtɪkjʊlət/

inarticulate

言葉が不明瞭
Meaning
Unable to express oneself clearly or effectively in speech or writing.
Example
She became inarticulate with emotion during the speech.
彼女はスピーチ中に感情で言葉が不明瞭になった。
C1 noun /riːk/

Reek

悪臭がする; 不快または望ましくない印象を与える
Meaning
to have a very unpleasant smell; to give a strong impression of something unpleasant or undesirable
Example
The garbage can reeks of rotten food.
ゴミ箱は腐った食べ物の臭いがする。
C1 verb /ɪmˈpɛrɪl/

imperil

危険にさらす
Meaning
To put in danger or at risk.
Example
Reckless driving can imperil the lives of others.
無謀な運転は他人の命を危険にさらす可能性があります。
C1 verb /ˈrʌf.l̩/

ruffle

Meaning
to disturb the smoothness of something; to annoy or upset someone
Example
The wind ruffled her hair.
C1 adjective /ˈdaʊn.kæst/

downcast

Meaning
feeling sad, dejected, or with lowered eyes
Example
He looked downcast after hearing the bad news.
C1 verb /ˌsuːpərɪmˈpoʊz/

superimpose

重ね合わせる
Meaning
to place one thing on top of another so that both can be seen
Example
The editor superimposed text over the image.
編集者は画像にテキストを重ね合わせました。
C1 adjective /ˌʌnɪmˈplɔɪəbəl/

unemployable

雇用不適格
Meaning
Not able to be employed; lacking the skills or qualities necessary for employment
Example
Due to his criminal record, he was considered unemployable in most companies.
彼の犯罪歴のため、ほとんどの会社で雇用不適格と見なされた。
C1 noun /ˈsɑːɡə/

saga

長い物語
Meaning
A long story of heroic achievement, or a long, complex series of events.
Example
The company's rise and fall became a corporate saga.
会社の興隆と衰退は企業のサガとなった。
C1 adjective /ɪˈnɔːrdənət/

inordinate

過度の
Meaning
Excessive or unusually large in degree.
Example
She spent an inordinate amount of time on her phone.
彼女は電話に過度の時間を費やしました。
C1 verb /ˈstɪp.jʊ.leɪt/

stipulate

規定する
Meaning
to demand or specify a condition in an agreement or contract
Example
The contract stipulates that payment must be made within 30 days.
契約書には、支払いは30日以内に行われるべきであると明記されています。
C1 adjective /ˈskrʌfi/

Scruffy

乱雑または不潔な外見; 汚れたしぼんだ
Meaning
untidy or unkempt in appearance; shabby and worn
Example
The scruffy old dog wandered through the streets looking for food.
そのみすぼらしい老犬は、食べ物を探して通りをさまよっていました。
C1 adjective /ˌboʊnəˈfaɪdi/

Bonafide

本物の; 正当な; 合法の
Meaning
genuine; authentic; legitimate
Example
She is a bonafide expert in her field.
彼女はその分野の本物の専門家です。
C1 noun /ˈhɛksəˌɡɒn/

hexagon

六角形
Meaning
A six-sided polygon.
Example
A honeycomb cell is shaped like a hexagon.
蜂の巣のセルは六角形をしている。
C1 noun /lɪŋˈɡwɪstɪks/

linguistics

言語学
Meaning
The scientific study of language and its structure.
Example
She decided to major in linguistics at university.
彼女は大学で言語学を専攻することに決めました。
C1 adjective /ˈspel.baʊnd/

Spellbound

夢中; 魅了された
Meaning
completely fascinated and unable to move or think about anything else; enchanted
Example
The children sat spellbound as the magician performed his tricks.
子供たちは魔法使いが技を披露するのを夢中で見ていました。
C1 noun ˌkɒm.pjʊˈteɪ.ʃən

computation

計算
Meaning
The action of mathematical calculation.
Example
Complex computation is required for AI models.
AIモデルには複雑な計算が必要です。
C1 verb /ˈæɡənaɪz/

agonize

苦しむ
Meaning
To suffer extreme physical or mental pain; to spend time worrying.
Example
She agonized for days over whether she had made the right decision.
彼女は自分が正しい決断を下したかどうかを何日も悩んでいました。
C1 adjective /rɪˈflek.sɪv/

Reflexive

反射的; 内省的
Meaning
directed back on itself; showing deep thought about oneself
Example
She became more reflexive about her behavior after the feedback.
フィードバックの後、彼女は自分の行動についてもっと反省的になりました。
C1 adjective /ˌʌndərˈhændɪd/

underhanded

不正
Meaning
acting or done in a dishonest or secret way
Example
They exposed the company's underhanded dealings with its suppliers.
彼らは会社とその供給者との不正取引を暴露しました。
C1 noun /ˈbjuːɡəl/

Bugle

バグル
Meaning
a brass musical instrument similar to a trumpet but without valves, used especially for military calls
Example
The soldier played the bugle to signal the start of the ceremony.
兵士は式典の開始を合図するためにバグルを吹いた
C1 noun /ˈɡlɒs.ər.i/

Glossary

用語集
Meaning
an alphabetical list of terms in a particular domain of knowledge with explanations; a brief dictionary
Example
The textbook includes a helpful glossary at the end to define technical terms.
教科書の最後には技術的な用語を定義するための役立つ用語集があります。
C1 noun /læns/

Lance

槍
Meaning
a long weapon with a sharp metal point, used by soldiers on horseback
Example
The knight charged forward with his lance ready.
騎士は準備が整った槍を持って前進した。
C1 adjective /ˈdrɪəri/

dreary

陰気な / 退屈な
Meaning
dull, bleak, and lifeless; depressing
Example
The long, dreary winter made everyone feel gloomy.
長くて退屈な冬は、皆を憂鬱にさせた。
C1 noun /ˈmænɪkɪn/

mannequin

マネキン
Meaning
a life-sized model of a human figure used by shops to display clothes
Example
The mannequin in the shop window was dressed in a red gown.
ショップのウィンドウのマネキンは赤いドレスを着ていた。
C1 noun /kɑːrˈtɒɡrəfi/

cartography

地図学
Meaning
The science or practice of drawing maps.
Example
She studied cartography at university to learn how to design maps.
彼女は大学で地図学を学び、地図のデザインを学びました。
C1 verb /məˈnuː.vər/

manoeuver

Meaning
To move skillfully or carefully; to guide or manipulate into a desired position.
Example
The driver skillfully manoeuvered the car through the narrow street.
C1 adjective /pərˈpetʃuəl/

perpetual

永遠の
Meaning
never-ending or continuous
Example
She lived in perpetual fear of being discovered.
彼女は発見される恐怖の中で永遠に生きていました。
C1 noun ˈrez.ɪ.djuːz

residues

残留物
Meaning
A small amount of something that remains after the main part has gone or been taken or used.
Example
The burning process leaves no harmful residues.
燃焼プロセスでは有害な残留物は残りません。
C1 noun /rɪˈpreʃən/

Repression

抑圧
Meaning
the action of subduing someone or something by force; the restraint, prevention, or inhibition of a feeling, impulse, etc.
Example
The government's repression of free speech sparked widespread protests.
政府の表現の自由に対する抑圧は、広範な抗議を引き起こした。
C1 adjective /kəˈrəʊsɪv/

corrosive

腐食性、有害
Meaning
tending to cause corrosion; harmful or destructive to materials or people
Example
The chemical is highly corrosive and should be handled with care.
この化学物質は非常に腐食性が高く、注意して取り扱う必要があります。
C1 adjective /ˈmɒdʒʊlər/

modular

モジュラー
Meaning
Employing or involving a module or modules as the basis of design or construction.
Example
The modular design allows for easy customization and scalability.
モジュラー設計は簡単なカスタマイズとスケーラビリティを提供します。
C1 noun /ˈtrɪkəri/

trickery

Meaning
The use of dishonest methods to deceive or cheat someone.
Example
The politician was accused of winning the election through trickery.
C1 adjective /ˈwɪl.fəl/

Wilful

頑固な; 意図的な
Meaning
deliberately stubborn; done on purpose; intentional
Example
His wilful disobedience led to punishment.
彼の意図的な不服従は罰に繋がった。
C1 adjective /ɪnˈdefɪnət/

Indefinite

不確定な
Meaning
not clearly defined; uncertain; vague; unlimited in time
Example
The meeting has been postponed for an indefinite period.
会議は不確定な期間に延期されました。
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 ˌnæn.oʊ.tekˈnɒl.ə.dʒi

nanotechnology

ナノテクノロジー
Meaning
The branch of technology that deals with dimensions and tolerances of less than 100 nanometers.
Example
Nanotechnology is advancing medical treatments.
ナノテクノロジーは医療治療の進歩を促進しています。
C1 verb /ɪˈnɔːɡjʊreɪt/

inaugurate

Meaning
To formally begin or introduce something, especially with a ceremony.
Example
The mayor will inaugurate the new bridge tomorrow.
C1 adjective /ˌəʊvərˈstɪmjʊˌleɪtɪd/

overstimulated

Meaning
Excessively excited or aroused, overwhelmed by too much stimulus.
Example
Overstimulated minds can lead to burnout and decreased productivity.
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 adjective /mɪˈrækjələs/

Miraculous

奇跡的; 驚くべき; 非凡な
Meaning
supernatural; amazing; extraordinary
Example
Her miraculous recovery amazed all the doctors.
彼女の奇跡的な回復は、すべての医師を驚かせました。
C1 noun /ˌʌnprɪˈdɪktəˌbɪləti/

unpredictability

予測不可能性
Meaning
The quality of being impossible to predict or anticipate.
Example
The unpredictability of the weather made the trip uncertain.
天気の予測不可能性は旅行を不確実にした。
C1 noun, verb /bʌldʒ/

bulge

Meaning
A swelling or protruding part; to swell outward or protrude.
Example
The bag began to bulge with too many books inside.
C1 noun səˌsɛp.təˈbɪl.ə.ti

susceptibility

感受性
Meaning
The quality of being likely to be influenced or harmed by a particular thing; vulnerability.
Example
High susceptibility to infections requires extra care.
感染症に対する高い感受性は追加のケアを必要とします。
C1 noun ˈɡræn.dʒər

Grandeur

壮大さ
Meaning
Magnificence, majesty, splendor; impressive beauty and scale.
Example
The grandeur of the Colosseum attracts millions of visitors.
コロッセオの壮大さは何百万もの観光客を引きつけます。
C1 noun /ˈleɪ.tən.si/

latency

遅延
Meaning
The delay in processing signals or data.
Example
High latency in online gaming can cause lagging issues.
オンラインゲームの高い遅延はラグの問題を引き起こす可能性があります。
C1 noun /ˈkɒntrəbænd/

contraband

密輸品
Meaning
goods that are illegal to import, export, or possess
Example
The police seized a shipment of contraband cigarettes.
警察は密輸されたタバコの積荷を押収しました。
C1 noun /kənˈtɛnʃən/

contention

争い, 意見の相違
Meaning
heated disagreement or argument; a point asserted in debate
Example
The main contention between the two parties was over tax reform.
二つの党派間での主要な争いは税制改革に関するものでした。
C1 verb /ˈoʊvərˌhɔːl/

overhaul

完全な改修
Meaning
to examine thoroughly and repair or improve something that is worn or ineffective
Example
The company decided to overhaul its outdated computer system.
会社は古くなったコンピュータシステムのオーバーホールを決定した。
C1 adjective /spəˈrædɪk/

sporadic

散発的
Meaning
Occurring irregularly or in scattered instances rather than continuously.
Example
The region experienced sporadic rain showers throughout the week.
その地域は1週間にわたって散発的な雨が降りました。
C1 verb /ˌmɪsˈpleɪs/

misplace

間違った場所に置く
Meaning
To put something in the wrong location and temporarily lose it.
Example
I often misplace my keys when I am in a hurry.
急いでいるとき、よく鍵を間違った場所に置いてしまいます。
C1 noun /ˈsʌtlti/

subtlety

微妙
Meaning
The quality or state of being subtle.
Example
She understood the subtlety of the situation.
彼女は状況の微妙さを理解しました。
C1 verb, adjective, noun /lɪmp/

limp

引きずる / 弱い
Meaning
to walk with difficulty, often due to injury or weakness; lacking strength or firmness.
Example
He limped after injuring his ankle.
彼は足首を怪我した後、足を引きずって歩いていた。
C1 noun /bəˈnɛv.ə.ləns/

benevolence

慈善または優しさ
Meaning
The quality of being well meaning and kindly; the disposition to do good.
Example
His benevolence towards the poor earned him respect.
貧しい人々に対する彼の優しさは、彼に尊敬をもたらしました。
C1 verb /kənˈstruː/

construe

解釈する
Meaning
to interpret or understand the meaning of something in a particular way
Example
His words could be construed as a threat.
彼の言葉は脅威として解釈されるかもしれません。
C1 adjective /ˌʌnəˈdɔːrnd/

unadorned

シンプルな、飾りのない
Meaning
Plain and simple; not decorated.
Example
The room was unadorned, with only a table and a chair.
部屋はシンプルで、テーブルと椅子だけがありました。
C1 adjective /ˈsaɪz.mɪk/

seismic

地震の
Meaning
Relating to earthquakes or vibrations of the earth and its crust.
Example
The region is known for its seismic activity.
その地域は地震活動で知られています。
C1 noun /ˈdɑːsieɪ/

dossier

ファイル
Meaning
A collection of documents about a particular person, event, or subject.
Example
The lawyer presented a dossier of evidence to the court.
弁護士は証拠のドシエを裁判所に提出しました。
C1 noun /ˈhɪp.ə.krɪt/

Hypocrite

偽善者; 嘘つき; 偽りの人
Meaning
a person who acts in contradiction to their stated beliefs or feelings; a pretender
Example
Don't be a hypocrite by demanding honesty from others while lying yourself.
他人に誠実を求めて自分は嘘をつくのは偽善者だ。
C1 noun /ˌrɛtrɪˈbjuːʃən/

retribution

報復, 罰
Meaning
punishment inflicted as vengeance for a wrong or crime
Example
The villagers demanded retribution for the crime committed.
村人たちは犯された犯罪に対して報復を要求しました。
C1 noun /ˈdrɪz.əl/

Drizzle

小雨
Meaning
light rain falling in very fine drops; a very light rainfall
Example
The gentle drizzle continued throughout the morning, making everything misty.
穏やかな小雨は朝の間中続き、すべてが霧のようになりました。
C1 verb /ˈstɪɡmətaɪz/

stigmatize

スティグマタイズする
Meaning
to describe or regard someone as worthy of disgrace or disapproval
Example
People with certain illnesses are often unfairly stigmatized.
特定の病気の人々はしばしば不当な方法でスティグマタイズされる。
C1 noun /ˈnɑv.ɪs/

Novice

初心者
Meaning
a person new to or inexperienced in a field or situation; a beginner
Example
As a novice driver, she was very careful on the road.
初心者のドライバーとして、彼女は道路で非常に慎重でした。
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 adjective /dɪˈskrɪmɪˌneɪtɪŋ/

discriminating

選り好みする
Meaning
Having refined taste or good judgment; able to recognize subtle differences.
Example
She is known for her discriminating taste in art.
彼女は芸術における選り好みの味で知られています。
C1 noun /ruːz/

Ruse

策略; 騙し
Meaning
an action intended to deceive someone; a trick or stratagem
Example
The thief used a clever ruse to distract the guard.
泥棒は警備員を惑わすために巧妙な策略を使った。
C1 noun /ˈkɜːr.i liːvz/

Curry Leaves

カレーの葉
Meaning
aromatic leaves from the curry tree used in South Asian cooking
Example
Fresh curry leaves add authentic flavor to Indian dishes.
新鮮なカレーの葉はインディアン料理に本格的な風味を加えます。
C1 noun /ˌfəʊtəʊˈsɪnθɛtɪk ɪˈfɪʃənsi/

photosynthetic efficiency

光合成効率
Meaning
The measure of how effectively plants convert light energy into chemical energy through the process of photosynthesis, directly affecting plant growth and crop yield.
Example
Improving photosynthetic efficiency can increase crop yields.
光合成効率を改善すると、作物の収量を増やすことができます。
C1 noun dɪˈspær.ə.ti

disparity

格差
Meaning
A great difference or inequality.
Example
Disparity between countries must be reduced.
国々の間の格差は減少するべきです。
C1 adjective ləˈθɑːrdʒɪk

lethargic

無気力
Meaning
Being inactive due to lack of physical or mental energy
Example
After a heavy meal, he felt lethargic and sleepy.
重い食事を取った後、彼は無気力で眠気を感じた。
C1 adjective /pəˈrɪʒən/

parisian

パリに関連する
Meaning
relating to Paris or its people
Example
She wore a Parisian style dress at the party.
彼女はパリジャンスタイルのドレスをパーティーで着ていた。
C1 adjective /ˈfaɪ.naɪt/

Finite

有限な; 限界がある
Meaning
limited; having bounds or limits; not infinite
Example
Earth has finite natural resources.
地球には有限の自然資源があります。
C1 noun /ˈælɪɡəri/

allegory

寓話
Meaning
a story, poem, or picture that can be interpreted to reveal a hidden meaning, often moral or political
Example
The novel is an allegory of the struggle between good and evil.
その小説は善と悪の闘争の寓話です。
C1 verb /ˈɡælvənaɪz/

galvanize

Meaning
to shock or excite someone into taking action; to coat iron or steel with a protective layer of zinc
Example
The speech galvanized the crowd into action.
C1 adjective /taɪˈtænɪk/

titanic

巨大な
Meaning
Of exceptional strength, size, or power.
Example
The company made titanic efforts to expand into new markets.
その会社は新しい市場に進出するために巨大な努力をしました。
C1 noun ˌfɜːr.tɪ.laɪˈzeɪ.ʃən

fertilization

肥料施用
Meaning
The process of adding nutrients to soil to increase crop productivity.
Example
Organic fertilization enhances soil health.
有機肥料施用は土壌の健康を改善します。
C1 noun /ədˈhiːʒən/

adhesion

付着
Meaning
the process or state of sticking to something
Example
Strong adhesion is needed for the tiles to stay in place.
タイルがその位置に留まるためには強い付着が必要です。
C1 noun /ədˈhɪərənt/

adherent

支持者
Meaning
a person who supports or follows a particular belief, cause, or leader
Example
He is a strong adherent of democratic values.
彼は民主的な価値観の強力な支持者です。
C1 noun /ˈriːkɔːrs/

recourse

助け, 対処
Meaning
a source of help or protection in a difficult situation
Example
The students had no recourse but to appeal to the principal.
学生たちは校長に訴える以外に方法がなかった。
C1 noun /ˈɡriːvəns/

grievance

幸せ
Meaning
A real or imagined cause for complaint, especially unfair treatment.
Example
The workers voiced their grievances to the management.
彼女は賞を受け取ったとき、幸せを隠せませんでした。
C1 noun /ˈfɔːrɡraʊnd/

foreground

前景
Meaning
the part of a scene that is nearest to and in front of the viewer
Example
The flowers in the foreground brightened the picture.
前景にある花が絵を明るくしました。
C1 adjective /ˈnɔːtɪkəl/

nautical

航海
Meaning
relating to ships, sailors, or navigation on water
Example
He studied nautical charts before setting sail.
彼は出航前に海図を勉強しました。
C1 adjective /tænˈdʒɛnʃəl/

tangential

接線の
Meaning
relating to or along a tangent; slightly or indirectly related to something
Example
His remarks were tangential to the main topic of discussion.
彼のコメントは議論の主要なトピックには関連していなかった。
C1 adjective /dɪˈsiːtfəl/

deceitful

欺瞞的な
Meaning
Deliberately misleading or dishonest.
Example
She gave a deceitful answer to hide the truth.
彼女は真実を隠すために欺瞞的な答えを出しました。
C1 adjective /smʌɡ/

smug

自惚れた
Meaning
having or showing an excessive pride in oneself or one's achievements
Example
He wore a smug smile after winning the debate.
彼は議論に勝った後、自惚れた笑顔を見せた。
C1 noun /ˈpærəˌlɛlɪzəm/

parallelism

平行主義
Meaning
The state of being parallel or similar; in literature, the use of components in a sentence that are grammatically the same or similar in construction.
Example
The writer used parallelism to give rhythm to his prose.
作家は自分の文章にリズムを与えるために平行主義を使用しました。
C1 noun /ˈkʌntrɪmən/

countryman

同国人
Meaning
a person from one's own country or rural area
Example
He was proud to meet a fellow countryman at the international conference.
彼は国際会議で同国人に会えて誇りに思った。
C1 adverb /ˈhɒtli/

hotly

激しく
Meaning
in an intense, angry, or passionate way
Example
She hotly denied the accusations.
彼女はその告発を激しく否定した。
C1 noun /prəˈpɛlər/

propeller

プロペラ
Meaning
A mechanical device with blades that rotates to drive a ship, aircraft, or other vehicle forward.
Example
The airplane’s propeller cut through the air with great speed.
飛行機のプロペラは大きな速さで空気を切った。
C1 adjective /ˈsteɪtli/

stately

威厳と壮大
Meaning
Having a dignified, majestic, and impressive appearance or manner.
Example
The stately mansion stood at the end of the long driveway.
その威厳ある邸宅は長いドライブウェイの終わりに立っていました。
C1 noun /stɪnt/

stint

短期の仕事
Meaning
a period of time spent doing a particular job or activity
Example
She did a short stint as a teacher before moving abroad.
彼女は海外に移住する前に短期間の教師として働きました。
C1 noun /səbˈmɜːrdʒəns/

submergence

水没
Meaning
the act or process of being submerged or going underwater
Example
The submergence of coastal areas is a major concern due to rising sea levels.
海面上昇による沿岸地域の水没は重大な懸念事項です。
C1 noun /rɪft/

rift

亀裂
Meaning
a serious break in a relationship; a split or crack
Example
A rift developed between the two friends after the argument.
議論の後、二人の友達の間に亀裂が生じた。
C1 adjective /ˈsek.j ə.l ər/

Secular

世俗的
Meaning
not connected with religious or spiritual matters; worldly
Example
The country maintains a secular government that separates religion from politics.
その国は宗教と政治を分離する世俗的な政府を維持している。
C1 adjective /ˈnɒm.ɪ.nəl/

Nominal

名目上の; 非常に小さい
Meaning
very small in size or amount; existing in name only
Example
He paid only a nominal fee for the membership since he was a student.
彼は学生だったので、会員費はわずかな名目料金でした。
C1 adjective /ˈkwɪzɪkəl/

quizzical

困惑した, 質問のような
Meaning
Expressing mild or amused puzzlement.
Example
She gave him a quizzical look when he made the strange comment.
彼が奇妙なコメントをしたとき、彼女は困惑した表情を彼に向けました。
C1 adjective /ˈkɒn.ɪ.fər.əs/

coniferous

針葉樹に関連する
Meaning
Relating to cone-bearing trees that usually have needle-like leaves and remain green year-round.
Example
Pine trees are coniferous and grow in colder climates.
松の木は針葉樹で、寒冷な気候で育ちます。
C1 adjective /ˈkwɑː.rəl.səm/

Quarrelsome

喧嘩好きな; 論争的な; 争い好きな
Meaning
given to arguing and fighting; argumentative and confrontational
Example
His quarrelsome nature makes it difficult to work with him.
彼の喧嘩好きな性格は、彼と一緒に働くのを難しくします。
C1 adverb /ˌðɛərˈʌv/

Thereof

それによって
Meaning
of that; from that
Example
The contract and all amendments thereof must be signed.
契約とそのすべての修正はそれによって署名される必要があります。
C1 noun /ˈæftərˌθɔːt/

afterthought

Meaning
Something added or considered later than originally planned.
Example
The gift seemed like an afterthought rather than a genuine gesture.
C1 noun /ˈɛksələnsɪ/

excellency

閣下
Meaning
a title of honor for people of high rank, especially ambassadors or governors
Example
His Excellency the Ambassador attended the ceremony.
大使閣下は式典に出席しました。
C1 verb, noun /ˌdɪsɪˈluːʒən/

disillusion

幻滅
Meaning
to cause someone to realize that something is not as good as they believed
Example
The scandal disillusioned many voters.
そのスキャンダルは多くの有権者を幻滅させた。
C1 noun/verb /ˈhɛrəld/

herald

先駆者
Meaning
A person or thing that announces or signals the approach of something; to announce or signal.
Example
The blooming flowers herald the arrival of spring.
咲いた花々は春の到来を告げます。
C1 verb /mɔːrf/

morph

変形する
Meaning
to change smoothly from one form, shape, or character into another
Example
The caterpillar will morph into a butterfly.
イモムシは蝶に変わるでしょう。
C1 noun /tɪˈmɪdəti/

timidity

内気
Meaning
lack of courage or self-confidence
Example
His timidity kept him from speaking up during the meeting.
彼の内気さは会議で話すことを妨げた。
C1 noun /dɪn/

din

騒音
Meaning
a loud, unpleasant, and prolonged noise
Example
The din of traffic outside made it hard to concentrate.
外の交通の騒音が集中するのを困難にしていた。
C1 adjective /rɪˈsɔːrs ɪˈfɪʃ.ənt/

resource-efficient

資源効率的
Meaning
Using resources in a way that minimizes waste and maximizes productivity.
Example
Resource-efficient farming conserves water and energy.
資源効率的な農業は、水とエネルギーを節約します。
C1 adjective /ˈɡʌl.ə.bəl/

gullible

簡単に騙される
Meaning
Easily deceived or tricked.
Example
She was so gullible that she believed every rumor.
彼女は非常に簡単に騙されるので、あらゆる噂を信じてしまった。
C1 noun /sɪˈsɛʃən/

secession

分離
Meaning
The action of formally withdrawing from membership of a federation or body.
Example
The secession of the southern states led to the Civil War.
南部諸州の分離は南北戦争を引き起こした。
C1 noun /bɑːm/

balm

軟膏
Meaning
A soothing ointment or something that provides comfort or relief.
Example
The balm helped relieve the pain from her sunburn.
そのバームは日焼けの痛みを和らげるのに役立ちました。