calculus
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C1 noun /ˈkælkjʊləs/

calculus

微積分
Meaning
A branch of mathematics concerned with rates of change and accumulation; also a hard mineral deposit in the body such as on teeth.
Example
Calculus is essential for advanced studies in physics and engineering.
微積分は物理学と工学の高度な研究に不可欠です。
C1 adjective /dɪsˈhɑːrtənd/

Disheartened

落胆した
Meaning
discouraged; feeling dejected; losing hope or confidence
Example
She felt disheartened after failing the exam twice.
彼女は試験に2回失敗した後、落胆していました。
C1 noun ˈnuːkliəs

nucleus

原子核
Meaning
The central core of an atom containing protons and neutrons.
Example
The nucleus consists of protons.
原子核は陽子で構成されています。
C1 adjective /məˈlɪɡnənt/

malignant

悪性
Meaning
dangerous or harmful in influence or effect; medically, tending to invade and destroy tissue
Example
Doctors confirmed that the tumor was malignant.
医師はその腫瘍が悪性であることを確認しました。
C1 noun /plæsˈtɪsəti/

plasticity

可塑性、適応能力
Meaning
the quality of being easily shaped or molded; adaptability
Example
The brain's plasticity allows it to adapt after injury.
脳の可塑性により、怪我の後に適応することができます。
C1 noun /ˈtaɪ.rənt/

Tyrant

暴君
Meaning
a cruel and oppressive ruler; a person who exercises power in a harsh manner
Example
The people rebelled against the cruel tyrant.
人々は残酷な暴君に反乱を起こしました。
C1 noun /ˈaʊtriːtʃ/

outreach

支援拡大
Meaning
The act of providing services or support to people who might not otherwise have access to them.
Example
The charity launched a new outreach program for the homeless.
チャリティはホームレスのために新しい支援拡大プログラムを開始しました。
C1 noun /ˈɪrɪtənt/

irritant

刺激物
Meaning
something that causes irritation or discomfort
Example
Dust is a common irritant for people with allergies.
ほこりはアレルギーを持つ人々にとって一般的な刺激物です。
C1 noun /ˈtoʊ.pæz/

Topaz

トパーズ
Meaning
a precious stone, typically colorless, yellow, or blue, used in jewelry
Example
The queen's crown was adorned with a magnificent blue topaz.
女王の王冠は素晴らしい青いトパーズで飾られていました。
C1 noun /ʃæk/

Shack

小屋
Meaning
a small, crudely built dwelling; a poorly constructed building
Example
The fisherman lived in a small shack near the beach.
漁師は海岸近くの小さな小屋に住んでいました。
C1 noun, adjective /ˈlæksətɪv/

laxative

下剤
Meaning
A medicine or substance that stimulates bowel movements; tending to loosen or relieve constipation.
Example
The doctor prescribed a mild laxative for her condition.
医者は彼女の状態のために軽い下剤を処方しました。
C1 adjective dʒuːˈdɪʃ.əs

judicious

賢明
Meaning
Having, showing, or done with good judgment or sense; wise and careful.
Example
A judicious decision can prevent future problems.
賢明な決定は未来の問題を防ぐことができます。
C1 noun /ˈhɔːr.nət/

Hornet

スズメバチ
Meaning
a large wasp that can sting and is often aggressive
Example
The hornet built its nest under the roof.
スズメバチは屋根の下に巣を作った。
C1 noun /ˈdjuːplɛks/

duplex

デュプレックスハウス
Meaning
A house or apartment divided into two separate residences.
Example
They live in a duplex near the city center.
彼らは市の中心近くのデュプレックスに住んでいます。
C1 noun /ˈsɔː.dʌst/

sawdust

木屑
Meaning
The tiny particles of wood produced by sawing or sanding.
Example
The floor was covered with sawdust from the carpentry work.
床は大工仕事からの木屑で覆われていました。
C1 noun /ˌsəʊ.ʃi.əʊˈek.ə.nɒm.ɪk ˈprɒɡ.res/

socioeconomic progress

社会経済的進歩
Meaning
Advancement in both social and economic conditions of a society or community.
Example
Socioeconomic progress uplifts marginalized communities.
社会経済的進歩は、疎外されたコミュニティを引き上げます。
C1 verb /ˈædʒ.ɪ.teɪt/

agitate

扇動する, 激しくする
Meaning
to stir up feelings or disturb; to campaign for change
Example
The protesters agitated for better working conditions.
抗議者たちはより良い労働条件を求めて活動した。
C1 adjective /ˈɑp.ər.ə.tɪv/

Operative

作動中の; 効力を持つ; 仕事をしている; 操作可能な;
Meaning
Functioning; in effect; working; active;
Example
The new safety protocols became operative immediately after the accident.
新しい安全プロトコルは事故後すぐに作動しました。
C1 noun /ˈsɛntɪˌliːtər/

centiliter

Meaning
A metric unit of capacity equal to one hundredth of a liter.
Example
The recipe calls for 20 centiliters of milk.
C1 noun /ˈmɜːrdʒər/

merger

合併
Meaning
The combination of two or more companies into a single entity.
Example
The merger of the two firms created the largest bank in the region.
2社の合併により、地域で最大の銀行が設立されました。
C1 noun /ˌspɒn.təˈneɪ.ɪ.ti/

spontaneity

自発性
Meaning
The quality of being spontaneous; natural and unplanned behavior.
Example
His spontaneity makes him a great conversationalist.
彼の自発性は彼を素晴らしい会話者にします。
C1 verb /ʃɜːrk/

shirk

避ける
Meaning
to avoid or neglect a duty or responsibility
Example
He always tries to shirk his responsibilities at work.
彼は仕事で責任を避けようといつも試みます。
C1 verb /mɑːr/

mar

台無しにする
Meaning
to spoil or damage the appearance or quality of something
Example
The scratch will mar the beauty of the painting.
その傷は絵画の美しさを台無しにする。
C1 noun /pækt/

Pact

協定; 契約
Meaning
a formal agreement between individuals or parties; a treaty or contract
Example
The two countries signed a peace pact to end the war.
二国は戦争を終わらせるために平和協定に署名した。
C1 noun /krəˈnɒlədʒi/

chronology

Meaning
The arrangement of events or dates in the order of their occurrence.
Example
The chronology of the dynasty was carefully studied by historians.
C1 adjective /ˈfiːlaɪn/

feline

猫に関する
Meaning
relating to or characteristic of cats
Example
Her movements were graceful and almost feline in their elegance.
彼女の動きは優雅で、ほとんど猫のようだった。
C1 noun /ˈjuːlədʒi/

eulogy

弔辞
Meaning
A speech or piece of writing that praises someone, especially after their death.
Example
Her brother delivered a heartfelt eulogy at the funeral.
彼女の兄は葬式で感動的な弔辞を述べました。
C1 noun /ˈtɛstəmənt/

testament

遺言 / 証拠
Meaning
a person's will; or strong evidence of something
Example
His success is a testament to his hard work and dedication.
彼の成功は彼の努力と献身の証です。
C1 noun /hɒˈstɪləti/

hostility

敵意
Meaning
hostile behavior; unfriendliness or opposition
Example
The negotiations ended in an atmosphere of hostility.
交渉は敵意の雰囲気で終わった。
C1 noun /ɪmˈpɛd.ɪ.mənt/

impediment

障害
Meaning
A hindrance or obstruction in doing something; something that prevents progress.
Example
Lack of funds is a major impediment to the project.
資金不足はプロジェクトの大きな障害です。
C1 verb /ˈræn.də.maɪz/

randomize

ランダム化する
Meaning
To make something happen in a random order or manner.
Example
The software can randomize the order of questions.
ソフトウェアは質問の順番をランダマイズできます。
C1 noun /ˈpoʊl.stɑːr/

Polestar

北極星
Meaning
a bright star that appears to stay in the same position in the sky and is used for navigation
Example
Sailors used the polestar to navigate across the ocean.
船乗りはポールスターを使って海を渡った。
C1 noun /səˈsteɪnəbl ˈæɡrɪkʌltʃər/

sustainable agriculture

持続可能な農業
Meaning
Farming practices that meet current food needs while preserving environmental resources and maintaining the ability to produce food for future generations through ecologically sound methods.
Example
Sustainable agriculture practices protect the environment while ensuring food security.
持続可能な農業の実践は、環境を保護しながら食料安全保障を確保します。
C1 adjective /ʌnˈweɪ.vər.ɪŋ/

unwavering

揺るぎない
Meaning
Steady or resolute; not wavering.
Example
He showed unwavering dedication to his goal.
彼は目標に対する揺るぎない献身を示しました。
C1 adjective liːst prɪˈpeərd

least prepared

最も準備ができていない
Meaning
Having the minimum level of readiness or equipment to handle a situation.
Example
Bangladesh is among the least prepared for climate adaptation.
バングラデシュは気候変動適応のために最も準備ができていない国の一つです。
C1 verb /plʌm/

plumb

深さを測るまたは詳細に調べる
Meaning
to measure the depth of water or examine closely
Example
They used a line to plumb the depth of the lake.
彼らは湖の深さを測るためにラインを使いました。
C1 adjective /kəmˈplaɪənt/

compliant

従順
Meaning
Willing to agree with or follow rules, requests, or demands.
Example
She was compliant with all the safety requirements.
彼女はすべての安全要件に従いました。
C1 verb /daʊs/

douse

消す / 注ぐ
Meaning
to pour liquid over; to extinguish a fire or light
Example
Firefighters doused the flames with water.
消防士たちは水で炎を消しました。
C1 noun /ˈdʒɑːr.ɡən/

jargon

専門用語
Meaning
Specialized or technical language used by a particular group or profession.
Example
The lawyer’s explanation was full of legal jargon.
弁護士の説明は法律専門用語でいっぱいでした。
C1 noun /kæsˈkeɪd/

Cascade

滝; 一連の段階や操作
Meaning
a waterfall; a succession of stages or operations
Example
The mountain cascade created a beautiful natural swimming pool below.
山の滝は下に美しい自然のスイミングプールを作りました。
C1 verb /præns/

prance

誇らしげに歩く
Meaning
To move with high, springy steps, often to show off or attract attention.
Example
The horse pranced around the field gracefully.
その馬は誇らしげにフィールドを歩いていました。
C1 noun /ˈseɪɑːns/

seance

霊的なセッション
Meaning
A meeting where people attempt to communicate with the spirits of the dead.
Example
They held a seance to contact their late grandmother.
彼らは亡くなった祖母と連絡を取るために霊的なセッションを開いた。
C1 verb /snʌb/

snub

無視する
Meaning
to insult or ignore someone by treating them rudely
Example
He felt hurt when his invitation was snubbed.
彼は招待状が無視されたとき、傷ついたと感じた。
C1 adjective /ɪˈvæljʊətɪv/

evaluative

評価的
Meaning
Relating to or involving evaluation or assessment.
Example
The evaluative phase of the project involves assessing its success.
プロジェクトの評価段階は、その成功を評価することを含みます。
C1 verb /ˈbɑːrtər/

barter

Meaning
To exchange goods or services without using money.
Example
They bartered their crops for handmade tools.
C1 verb /ɪkˈstɪŋ.ɡwɪʃ/

extinguish

消す
Meaning
to put out a fire, light, or to end something
Example
The firefighters managed to extinguish the blaze within an hour.
消防士たちは1時間以内に火を消し止めました。
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 /ˈtʃaɪ.nə.weər/

China-ware

チャイナウェア
Meaning
dishes, plates, cups, and other tableware made of porcelain or fine ceramic
Example
The expensive china-ware was displayed in the cabinet.
高価なチャイナウェアはキャビネットに展示されていました。
C1 noun /ˈtrɪnɪti/

trinity

三位一体
Meaning
a group of three closely related things; in Christianity, the Father, the Son, and the Holy Spirit
Example
The museum’s exhibit focused on a trinity of themes: memory, identity, and power.
博物館の展示は、三つのテーマの三位一体に焦点を当てていました：記憶、アイデンティティ、そして力。
C1 verb /siːp/

seep

しみ出す
Meaning
to flow or leak slowly through small openings or pores
Example
Water began to seep through the cracks in the wall.
水が壁のひび割れからしみ出し始めました。
C1 noun ɪˌræʃ.ənˈæl.ɪ.ti

irrationality

非合理性, 非論理性, 不合理
Meaning
The quality of being illogical or unreasonable; lack of rational thought.
Example
His decision was driven by complete irrationality.
彼の決定は完全に非合理的でした。
C1 verb /rɪˈvoʊk/

revoke

取り消す
Meaning
To officially cancel or withdraw a decision, privilege, or right.
Example
The government decided to revoke his passport.
政府は彼のパスポートを取り消すことを決定した。
C1 adjective /əˈblɪɡ.ə.tɔː.ri/

obligatory

義務的
Meaning
Required by a legal, moral, or other rule; compulsory.
Example
Wearing a seatbelt is obligatory in most countries.
ほとんどの国でシートベルトを着用することは義務です。
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 /ˈplɒd.ɪŋ/

plodding

遅くて退屈な
Meaning
slow-moving and unexciting; showing steady effort
Example
The movie was entertaining but a bit plodding in the middle.
その映画は面白かったが、真ん中で少し遅くて退屈だった。
C1 noun /rɪˌmjuː.nəˈreɪ.ʃən/

Remuneration

報酬; 報奨金; 料金
Meaning
money paid for work or services; compensation or reward
Example
The job offers excellent remuneration and benefits.
その仕事は優れた報酬と福利厚生を提供します。
C1 adjective /klæd/

clad

服を着た / 覆われた
Meaning
dressed or covered in a particular way
Example
The knight was clad in shining armor.
騎士は輝く鎧を着ていた。
C1 verb/noun /ˈsɒldər/

solder

はんだ付け
Meaning
To join metal parts together by melting and putting a filler metal into the joint
Example
He soldered the broken wires back together.
彼は壊れた配線を再びはんだ付けしました。
C1 noun/verb /kwɪp/

quip

巧妙なコメント
Meaning
A witty remark; to make a witty or clever comment.
Example
She quipped about the weather during the meeting.
会議中に天気について冗談を言いました。
C1 adjective /ˈdɑːsəl/ or /ˈdəʊsaɪl/

docile

従順な
Meaning
easily managed, taught, or controlled; submissive
Example
The docile puppy quickly learned new tricks.
従順な子犬はすぐに新しい技を覚えました。
C1 adjective ˌkɑːr.sɪ.nəˈdʒen.ɪk

carcinogenic

発癌性の
Meaning
Having the potential to cause cancer in living tissue.
Example
Processed meat contains carcinogenic compounds.
加工肉には発癌性の化合物が含まれています。
C1 noun /ɪnˈsæn.ə.ti/

Insanity

狂気; 精神疾患
Meaning
the state of being seriously mentally ill; extreme foolishness or irrationality
Example
The defense lawyer argued that his client was not guilty by reason of insanity.
弁護人は、被告人が狂気によって無罪であると主張した。
C1 noun ˈredʒ.ɪ.strɑːr

registrar

レジストラー
Meaning
An official responsible for keeping records or registers.
Example
The registrar oversees all administrative tasks.
レジストラーはすべての行政業務を監督しています。
C1 adjective /ˈmɜː.sɪ.ləs/

Merciless

容赦ない; 残酷な;
Meaning
showing no mercy or pity; cruel and heartless
Example
The merciless dictator showed no compassion.
容赦のない独裁者は、同情を示さなかった。
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。
C1 verb /ˈɛkstrəˌdaɪt/

extradite

引き渡す
Meaning
to hand over a person accused or convicted of a crime to another country or state
Example
The government agreed to extradite the fugitive to his home country.
政府はその逃亡者を自国に引き渡すことに同意した。
C1 noun /ˈsʌn.stroʊk/

Sunstroke

熱中症
Meaning
a serious condition caused by overheating from prolonged exposure to high temperatures
Example
The worker suffered from sunstroke after working outside all day.
その労働者は一日中外で働いた後、日射病にかかりました。
C1 noun /fɪlθ/

filth

汚れ
Meaning
dirty or disgusting matter; moral corruption
Example
The streets were full of filth after the storm.
嵐の後、通りは汚れでいっぱいでした。
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 ɪˈpɪf.ə.ni

epiphany

突然の啓示または洞察
Meaning
A moment of sudden revelation or insight.
Example
He had an epiphany about his true purpose in life.
彼は自分の人生の本当の目的についてエピファニーを得た。
C1 adjective /kəˈlæpsəbl̩/

collapsible

折りたたみ式
Meaning
able to be folded down or reduced in size
Example
She bought a collapsible chair for camping.
彼女はキャンプ用に折りたたみ式の椅子を買いました。
C1 adjective dɒɡˈmæt.ɪk

dogmatic

教条的
Meaning
Being inclined to lay down principles as incontrovertibly true; characterized by arrogant assertion of unproven principles.
Example
His dogmatic approach to politics made discussions difficult.
彼の教条的なアプローチは、議論を難しくしました。
C1 noun /rəˈpɪdəti/

rapidity

迅速さ
Meaning
The quality of moving or happening quickly; swiftness or speed.
Example
The rapidity of technological change is astonishing.
技術的な変化の速さは驚くべきものです。
C1 verb /bɪˈhɛd/

behead

斬首する
Meaning
to cut off a person's or animal's head; to remove the leader or most important part
Example
The historical account describes how the traitor was beheaded as punishment.
歴史的記録は、罰として裏切り者が斬首された様子を描写している。
C1 verb /ɪmˈpɪndʒ/

impinge

影響を与える
Meaning
to have an effect or impact on something; to encroach or infringe
Example
The noise from the construction site impinges on our daily activities.
建設現場の音は私たちの日常的な活動に影響を与えます。
C1 verb /əˈdʒɜrn/

adjourn

延期する
Meaning
to suspend a meeting or session to another time or place
Example
The judge decided to adjourn the hearing until next week.
裁判官は次の週まで聴聞を延期することに決めました。
C1 verb /dɪˈflɛkt/

deflect

反らす / 避ける
Meaning
to cause something to change direction; to avoid answering directly
Example
The shield deflected the incoming arrow.
盾は飛んできた矢を反らした。
C1 noun /rɛnˈdɪʃən/

rendition

演奏
Meaning
a performance or interpretation of a piece of art, music, or text
Example
The singer gave a moving rendition of the classic song.
歌手はクラシックな歌の感動的な演奏を行いました。
C1 adjective /ɪˈnuːmərəbəl/

Innumerable

無数; 数えきれない; 無限
Meaning
too many to be counted; countless; infinite in number
Example
There are innumerable stars in the night sky that we cannot see with our naked eyes.
夜空には数えきれない星があり、私たちは裸眼では見ることができません。
C1 adjective /ˈlaɪf.laɪk/

lifelike

リアルに似ている
Meaning
Very similar to a real person, object, or scene; realistic.
Example
The wax figure was so lifelike that people thought it was a real person.
その蝋人形は非常にリアルに似ていて、人々はそれが本物の人物だと思った。
C1 noun /sɪlk klɔːθ/

Silk cloth

シルクの布
Meaning
fabric made from natural fibers produced by silkworms
Example
The bride wore a beautiful dress made of silk cloth.
花嫁はシルクの布で作られた美しいドレスを着ていました。
C1 noun /riˈæktənt/

reactant

Meaning
A substance that takes part in and undergoes change during a chemical reaction.
Example
Oxygen is a reactant in the process of combustion.
C1 adjective /ɪnˈvæljʊəbl/

invaluable

計り知れない価値がある
Meaning
Extremely useful or indispensable.
Example
Her advice proved invaluable to my success.
彼女の助言は私の成功にとって非常に貴重でした。
C1 noun /ˈɑː.kɪ.taɪp/

archetype

原型、典型
Meaning
A very typical example of a certain person or thing; an original model or prototype.
Example
This painting is the archetype of modern art.
この絵は現代アートの原型です。
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 /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 verb /daɪˈluːt/

dilute

薄める
Meaning
To make a liquid thinner or weaker by adding water or another solvent.
Example
You should dilute the juice with water before serving it to children.
子供たちに出す前にジュースを水で薄めるべきです。
C1 adjective /ˈbɒt.əl ɡriːn/

Bottle-green

ボトルグリーン
Meaning
a dark green color similar to that of a green glass bottle
Example
She wore a beautiful bottle-green dress to the evening party.
彼女は夜のパーティーに美しいボトルグリーンのドレスを着ていた。
C1 verb /ɪnˈdʌkt/

induct

Meaning
to formally admit someone into a position, organization, or office
Example
She was inducted into the university's honor society.
C1 noun ˌsʌb.sɪ.dɪˈzeɪ.ʃən

subsidization

助成金
Meaning
Financial assistance provided by government to make certain goods or services more affordable.
Example
Subsidization of agriculture helps farmers maintain crop production.
農業の助成金は、農家が作物の生産を維持するのに役立ちます。
C1 noun /ˈstætʃuːt/

statute

法律
Meaning
A written law passed by a legislative body.
Example
The new statute protects workers' rights.
新しい法律は労働者の権利を保護します。
C1 adjective /ˈpɒp.jʊ.ləs/

Populous

人口密度が高い
Meaning
having a large population; densely populated; crowded with people
Example
China is the most populous country in the world.
中国は世界で最も人口の多い国です。
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。
C1 verb /prɪˈkluːd/

preclude

排除する
Meaning
To prevent something from happening; to make impossible.
Example
Heavy rain precluded the possibility of a picnic.
大雨がピクニックの可能性を排除した。
C1 adjective /kweɪnt/

quaint

古風で魅力的な
Meaning
attractively unusual or old-fashioned
Example
They stayed in a quaint little cottage by the sea.
彼らは海の近くの趣のある小さな小屋に泊まりました。
C1 adjective ɪmˈpɪr.ɪ.kəl

empirical

経験に基づくまたは実証的
Meaning
Based on, concerned with, or verifiable by observation or experience rather than theory or pure logic.
Example
Scientific research relies on empirical evidence.
科学的な研究は実証的な証拠に依存しています。
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 adjective /ˈskɪtɪʃ/

skittish

神経質な
Meaning
easily frightened or nervous; unpredictable
Example
The horse was too skittish to ride.
その馬は乗るには神経質すぎた。
C1 noun /kənˈkʌrəns/

concurrence

一致
Meaning
Agreement or union in action, opinion, or occurrence; simultaneous happening of events.
Example
The project was completed with the concurrence of all departments.
そのプロジェクトはすべての部門の同意のもとで完了しました。
C1 adjective ɪnˈdel.ə.bəl

indelible

消えない
Meaning
Making marks that cannot be removed; impossible to forget or remove.
Example
Her speech left an indelible mark on the audience.
彼女のスピーチは聴衆に消えない印象を残しました。
C1 noun /dɪˈlɪriəm/

delirium

錯乱
Meaning
An acutely disturbed state of mind characterized by restlessness, illusions, and incoherence.
Example
The patient experienced delirium after the surgery due to the strong medication.
患者は手術後、強い薬物の影響で錯乱状態を経験しました。
C1 noun /ˈwed.lɒk/

Wed lock

結婚
Meaning
the state of being married; matrimony
Example
They have been happily united in wedlock for twenty years.
彼らは二十年間幸せに結婚しています。
C1 verb /ˈdɪs.ɪ.peɪt/

dissipate

徐々に消失する
Meaning
To disappear or cause to disappear gradually.
Example
The tension in the room slowly dissipated.
部屋の中の緊張感は徐々に消えていった。
C1 noun /ˈsɜːr.vɪ.tuːd/

Servitude

奴隷状態
Meaning
the state of being a slave or completely subject to someone more powerful
Example
Many people fought to escape the servitude imposed by the colonial system.
多くの人々が、植民地制度によって課せられた隷属から逃れようと戦った。
C1 verb /rɪˈvɜːrbəreɪt/

reverberate

反響する
Meaning
To echo repeatedly or have continuing effects.
Example
The sound of the explosion reverberated through the valley.
爆発音は谷を通り過ぎて反響しました。
C1 adjective /ˌeɪθiˈɪstɪk/

atheistic

無神論的
Meaning
Relating to or characteristic of atheists or atheism.
Example
She grew up in an atheistic household with no religious rituals.
彼女は宗教的な儀式のない無神論的な家庭で育ちました。
C1 noun /sɪˈkluːʒən/

seclusion

隠遁
Meaning
The state of being private, away from other people.
Example
She spent the weekend in complete seclusion in her cabin.
彼女はキャビンで完全に隠遁した週末を過ごしました。
C1 verb /ˌkɒm.pɑːtˈmen.təl.aɪz/

compartmentalize

区分けする
Meaning
To divide into sections or categories; to separate things into compartments.
Example
To increase efficiency, he compartmentalized his work tasks.
効率を上げるために、彼は自分の作業を区分けしました。
C1 noun /jiːst/

Yeast

イースト
Meaning
microorganisms used in baking and brewing to cause fermentation
Example
Add yeast to the flour to make the bread rise.
パンを膨らませるために小麦粉にイーストを加えます。
C1 noun /əˈduː/

ado

騒ぎ / 不必要な活動
Meaning
a fuss or unnecessary activity; trouble or difficulty
Example
Without further ado, let’s begin the ceremony.
これ以上のアドなしで、式を始めましょう。
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 adjective /ɪnˈdɪɡnənt/

indignant

憤慨した
Meaning
Feeling or showing anger at something considered unfair or unjust.
Example
She was indignant when accused of cheating.
彼女は不正行為を非難されたとき、憤慨していた。
C1 adjective /ˌʃoʊ.vəˈnɪs.tɪk/

chauvinistic

ショービニズム
Meaning
Displaying or characterized by excessive or prejudiced loyalty or support, especially towards one's own gender or group.
Example
His chauvinistic attitude alienated many of his female colleagues.
彼のショウビニスティックな態度は多くの女性の同僚を疎外した。
C1 noun /frɪndʒ/

fringe

装飾的縁 / 端
Meaning
A decorative border of threads; the outer edge or margin of something.
Example
The festival had a fringe of small independent performances.
フェスティバルには小さな独立したパフォーマンスの端がありました。
C1 adjective /ˈspjʊəriəs/

spurious

偽の / 虚偽の
Meaning
Not genuine, authentic, or true; false or fake.
Example
The report was based on spurious claims.
その報告書は偽の主張に基づいていた。
C1 noun /ˈkɔːrdən/

cordon

封鎖線
Meaning
a line or circle of police, soldiers, or guards preventing access
Example
The police set up a cordon around the crime scene.
警察は犯罪現場の周りにコルドンを設置しました。
C1 noun /oʊˈmɪʃ.ən/

Omission

省略; 除外
Meaning
the action of excluding or leaving out someone or something; a failure to include
Example
The omission of his name from the list was intentional.
リストから彼の名前を省略することは意図的でした。
C1 verb /ɪnˈsɪnjueɪt/

insinuate

Meaning
To suggest or hint something indirectly and often unpleasantly.
Example
He insinuated that she had lied about her qualifications.
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 verb /ˈkrɪstəlaɪz/

crystallize

結晶化する
Meaning
to form crystals; to make an idea or plan clear and definite
Example
Her vague thoughts began to crystallize into a solid plan.
彼女のあいまいな考えは、明確な計画に結晶化し始めた。
C1 noun ˈæltruɪzəm

altruism

利他主義、他者の幸福に対する無私の配慮
Meaning
The belief in or practice of disinterested and selfless concern for the well-being of others.
Example
His altruism motivated others to volunteer.
彼の利他主義は他の人々にボランティアをするように促した。