Coincidence
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B2 noun /koʊˈɪn.sɪ.dəns/

Coincidence

偶然
Meaning
a remarkable occurrence of events or circumstances without apparent causal connection; chance happening
Example
It was a strange coincidence that they both wore the same dress to the party.
それは奇妙な偶然だった、彼ら二人は同じドレスを着てパーティーに行った。
B2 noun ˌkɒm.prɪˈhɛn.ʃən

comprehension

理解
Meaning
The ability to understand something; understanding or grasp of knowledge.
Example
Reading improves vocabulary and comprehension skills.
読書は語彙力と理解力を向上させます。
B2 verb /ˈkɒmprəmaɪz/

compromise

妥協する
Meaning
To expose or make vulnerable to danger, suspicion, or disrepute.
Example
Excessive sharing can compromise your privacy.
過度の共有はあなたのプライバシーを危険にさらす可能性があります。
B2 noun /ˈkɒŋɡrɛs/

congress

会議
Meaning
a formal meeting or assembly, especially of representatives for discussion
Example
The international congress on climate change will be held next year.
気候変動に関する国際会議は来年開催されます。
C2 adjective /ˈkoʊltɪʃ/

coltish

Meaning
Playful, energetic, and not fully mature or disciplined.
Example
The coltish boy ran around the field without a care.
A2 noun /ˈkɒm.ent/

comment

コメント
Meaning
a verbal or written remark expressing an opinion or reaction
Example
She posted a kind comment on my photo.
彼女は私の写真に優しいコメントを投稿しました。
B2 adjective /ˈsel.jə.lər/

Cellular

細胞の
Meaning
relating to cells; consisting of cells; relating to mobile phone technology
Example
Cellular technology has revolutionized communication.
セルラー技術は通信を革新しました。
B1 adjective /kəˈmɪtɪd/

committed

コミットされた
Meaning
Dedicated and loyal to a cause, activity, or relationship.
Example
She is a committed teacher who cares deeply for her students.
彼女は学生たちを深く気にかける、コミットされた教師です。
B1 verb /kənˈkluːd/

conclude

締めくくる
Meaning
to bring to an end; to decide or determine after consideration
Example
We will conclude the meeting at five o'clock.
私たちは五時に会議を締めくくります。
B2 noun /ˈtʃæpəl/

chapel

チャペル
Meaning
A small church or a room used for Christian worship, often within a larger building.
Example
The couple got married in a small countryside chapel.
そのカップルは田舎の小さなチャペルで結婚しました。
C2 verb /ʧeɪf/

chafe

Meaning
To make or become sore by rubbing; to feel irritation or impatience.
Example
The tight shoes began to chafe his heels.
C2 adjective /ˈtʃɜːrlɪʃ/

churlish

無礼
Meaning
Rude in a mean-spirited and surly way.
Example
It would be churlish to refuse her kind invitation.
彼女の親切な招待を断るのは無礼だろう。
C2 noun /ˈkɔːrsər/

courser

速い馬または狩猟馬
Meaning
a swift horse or a hunting horse
Example
The knight rode a fast courser into battle.
騎士は速いコーサーに乗って戦いに向かった。
C1 noun kəˈmɛns.mənt

commencement

開始
Meaning
The beginning of something; a ceremony at which degrees or diplomas are conferred on graduating students.
Example
The commencement ceremony marked the start of a new journey.
卒業式は新しい旅の始まりを意味していました。
A1 verb /tʃuːz/

choose

選ぶ
Meaning
to pick or select from several options
Example
I always choose healthy food options.
私はいつも健康的な食べ物の選択肢を選びます。
C1 verb /kəˈleɪt/

collate

整理する
Meaning
to collect, arrange, and combine in order
Example
The secretary collated the reports before the meeting.
秘書は会議前に報告書を整理した。
B2 noun kəˌlæbəˈreɪʃən

collaboration

協力
Meaning
The action of working with someone to produce or create something
Example
International collaboration is necessary to fight pollution.
国際的な協力は汚染と戦うために必要です。
A2 noun /kɑːrˈtuːn/

cartoon

アニメーション
Meaning
a humorous or animated drawing, especially one in newspapers or television
Example
Children love watching cartoons on TV.
子供たちはテレビでアニメを見るのが大好きです。
A2 noun, adjective /ˈkrɪstʃən/

christian

クリスチャン
Meaning
a person who follows the religion based on the teachings of Jesus Christ
Example
She is a devoted Christian who attends church every Sunday.
彼女は毎週日曜日に教会に行く献身的なクリスチャンです。
B1 noun ˈkɒnsept

concept

概念
Meaning
An abstract idea or general notion
Example
The concept of chasing two rabbits teaches focus.
二匹のウサギを追いかけるという概念は、集中力を教えます。
C2 noun /ˌkælɪsˈθɛnɪks/

calisthenics

自重トレーニング
Meaning
exercises that use body weight for strength and flexibility
Example
She practices calisthenics every morning in the park.
彼女は毎朝公園でカリステニクスを練習しています。
C1 adjective /kənˈtraɪvd/

contrived

人工的または強制的; 自然でないまたは自発的でない
Meaning
artificial or forced; not natural or spontaneous
Example
The ending of the movie felt contrived and unrealistic.
映画の結末は作り物で非現実的に感じました。
A2 noun /ˈkʌstəmər/

customer

顧客
Meaning
a person or organization that buys goods or services from a store or business
Example
The shopkeeper greeted the customer with a smile.
店主は笑顔で顧客を迎えました。
C2 noun /kɒzˈmɒɡ.rə.fi/

cosmography

コスモグラフィー
Meaning
the science or art of mapping the universe or cosmos
Example
Medieval scholars practiced cosmography to chart the stars and planets.
中世の学者たちは、星や惑星の地図を作成するためにコスモグラフィーを実践していました。
C2 adjective /ˈkɒndaɪn/

condign

相応しい
Meaning
deserved, appropriate, and fitting (especially punishment)
Example
The criminal received condign punishment for his crimes.
犯人は自分の罪にふさわしい罰を受けた。
B2 noun /kənˈsɛʃən/

concession

譲歩
Meaning
something that is granted, especially in response to demands; a compromise
Example
The company made several concessions during the negotiations.
会社は交渉中にいくつかの譲歩をしました。
B1 noun /ˌkæl.kjəˈleɪ.ʃən/

Calculation

計算
Meaning
a mathematical determination of the size or number of something
Example
His calculation of the total cost was accurate to the penny.
彼の総費用の計算はペニー単位まで正確でした。
B2 noun /kəˈmændər/

Commander

司令官
Meaning
a person in authority over a military unit; leader of armed forces
Example
The commander ordered his troops to advance.
司令官は部隊に前進するよう命じました。
C2 noun /tʃəˈmeɪ.li/

Chameli

ジャスミン
Meaning
a variety of jasmine flower with small white fragrant petals
Example
The chameli flowers are commonly used to make garlands and perfumes.
ジャスミンの花はよく花輪や香水を作るために使われます。
B2 noun /ˈkæʒ.u.əl.ti/

Casualty

犠牲者; 負傷者; 損失
Meaning
a person killed or injured in a war or accident; a victim of circumstances
Example
The hospital treated many casualties from the car accident.
病院は車の事故からの多くの負傷者を治療しました。
B2 noun /ˌkɒndɛnˈseɪʃən/

condensation

凝縮
Meaning
The process of water vapor changing into liquid; also, the act of making something more concise.
Example
Condensation formed on the windows during the cold night.
寒い夜に窓に凝縮ができた。
B2 noun /ˈkæriər/

carrier

運送業者
Meaning
A person or thing that carries, transports, or conveys something; also an organization that provides transport services.
Example
The airline is the largest carrier in the country.
その航空会社は国で最も大きな運送業者です。
B1 noun /kənˈteɪ.nər/

container

コンテナ
Meaning
A receptacle or box used for storage or transportation.
Example
Containers are essential for logistics.
コンテナは物流に不可欠です。
C1 noun /ˈʃæpəroʊn/

chaperon

付き添い人
Meaning
An older person who accompanies and supervises young people in social situations.
Example
The teacher acted as a chaperon during the school dance.
先生は学校のダンスで付き添い人として行動しました。
A2 verb /tʃiːt/

cheat

カンニング
Meaning
to act dishonestly; to break rules for advantage
Example
He cheats on the exam by copying answers.
彼は答えをコピーして試験でカンニングします。
C2 verb /ˈkɒndʒʊɡeɪt/

conjugate

活用する
Meaning
to list the different forms of a verb according to tense, person, and number
Example
Students are asked to conjugate the verb 'to be'.
学生は「to be」動詞を活用するよう求められます。
B2 noun /kəˈdɛt/

cadet

士官候補生
Meaning
A young trainee in the armed forces, police, or other organization.
Example
The cadet marched proudly in the parade.
士官候補生はパレードで誇らしげに行進した。
C1 verb /kriːk/

creak

高い音できしむ音を立てる
Meaning
to make a high-pitched, squeaking noise when moved
Example
The old door creaked as she opened it.
古いドアは彼女が開けるときにきしんだ。
A2 adjective /ˈtʃɪə.fəl/

Cheerful

陽気な; 楽観的な; 喜びに満ちた
Meaning
happy and optimistic; full of joy and good spirits; bright and lively
Example
She has a cheerful personality that brightens everyone's day.
彼女は皆の日を明るく照らす陽気な性格を持っています。
B1 noun /ˈkɒstjuːm/

costume

衣装
Meaning
a set of clothes worn to represent a particular character, culture, or occasion
Example
She wore a beautiful costume for the Halloween party.
彼女はハロウィンパーティーのために素晴らしい衣装を着ていた。
C1 adjective /kəmˈpensətɔːri/

compensatory

補償的
Meaning
serving to make up for a loss, damage, or injury
Example
The court awarded him compensatory damages.
裁判所は彼に補償的損害賠償を授与しました。
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。
A2 adjective /ˈkruːəl/

cruel

残酷
Meaning
Willfully causing pain or suffering to others, or feeling no concern about it.
Example
It was cruel to make fun of the injured boy.
負傷した男の子を笑うのは残酷だった。
C1 adjective /ˈkoʊvərt/

covert

秘密
Meaning
hidden, secret, or not openly acknowledged
Example
The spy conducted a covert operation behind enemy lines.
スパイは敵の線の後ろで秘密の作戦を行った。
A2 noun /ˌkɒnvəˈseɪʃn/

conversation

会話
Meaning
an informal talk between two or more people, in which ideas, feelings, and thoughts are exchanged
Example
We had a long conversation about future plans.
私たちは未来の計画について長い会話をしました。
C2 noun /kwɑːˈfjʊr/

coiffure

髪型
Meaning
A person's hairstyle, typically an elaborate one.
Example
Her elegant coiffure impressed everyone at the party.
彼女のエレガントな髪型はパーティーで皆を感動させました。
C1 noun ˈkɑːr.bən ˌsiː.kwəˈstreɪ.ʃən

carbon sequestration

炭素の固定化と長期貯蔵
Meaning
The process of capture and long-term storage of atmospheric carbon dioxide to mitigate or defer global warming.
Example
Forests play a key role in carbon sequestration.
森林は炭素の固定化において重要な役割を果たします。
C1 verb /ˈsɪvɪlaɪz/

civilize

文明化する
Meaning
to bring a society or group to a more developed, organized, or socially acceptable state; to educate and refine behavior
Example
Education can help civilize communities by promoting shared values and respect.
教育は共有された価値観と尊重を促進することで、地域社会を文明化する助けになります。
C2 adjective /ˌkɑːmənˈsɛnsɪkəl/

commonsensical

常識的な
Meaning
based on or showing sound practical judgment; sensible
Example
It was commonsensical to carry an umbrella on a rainy day.
雨の日に傘を持つのは常識的なことだった。
B2 adjective /kənˈsɪd.ər.ɪt/

Considerate

思いやりのある; 配慮深い
Meaning
showing careful thought about the feelings or wishes of others; thoughtful
Example
He is always considerate of others' feelings.
彼はいつも他人の感情に配慮しています。
C2 verb /kəˈvɔrt/

cavort

楽しそうに跳ねる
Meaning
to jump or dance around excitedly
Example
The children cavorted happily in the garden.
子供たちは庭で楽しそうに跳ねていました。
B1 adjective /ˈklæsɪkəl/

classical

古典的または伝統的な
Meaning
relating to ancient Greek or Roman culture, or representing traditional excellence in art, music, or literature
Example
She loves listening to classical music while studying.
彼女は勉強中にクラシック音楽を聴くのが好きです。
B2 noun /ˈkɒn.trɪ.bjʊ.tər/

contributor

貢献者
Meaning
a person who gives something to help achieve a result
Example
He was a regular contributor to the local newspaper.
彼は地元の新聞の定期的な貢献者でした。
B1 noun /ˈkɔːrɪdɔːr/

corridor

部屋に通じる長い通路
Meaning
a long passage in a building from which doors lead into rooms
Example
The students waited quietly in the corridor.
生徒たちは廊下で静かに待っていた。
B2 verb /koʊp/

cope

対処する
Meaning
to deal effectively with something difficult
Example
She had to cope with a lot of pressure at work.
彼女は仕事で大きなプレッシャーに対処しなければなりませんでした。
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。
B2 noun ˈkɑː.bən

carbon

炭素
Meaning
The chemical element of atomic number 6, occurring as diamond, graphite, and charcoal.
Example
Carbon emissions must be controlled.
カーボン排出は管理されるべきです。
C1 adjective kənˈten.ʃəs

contentious

論争のある
Meaning
Causing or likely to cause an argument; controversial.
Example
The contentious issue divided global leaders.
その論争的な問題は、世界のリーダーたちを分裂させました。
C2 noun /kiˌɑːrəˈskjʊəroʊ/

chiaroscuro

光と影の劇的な対比
Meaning
The use of strong contrasts between light and dark in art or literature to create a dramatic effect.
Example
The artist's painting used chiaroscuro to highlight the figure's face.
そのアーティストの絵画は、人物の顔を強調するためにキアロスクーロを使用しました。
C2 noun /kəˈpærɪsən/

caparison

馬のための装飾的なカバー; 豪華で精緻な衣服や装飾
Meaning
an ornamental covering for a horse; rich and elaborate clothing or decoration
Example
The king’s horse was adorned with a golden caparison.
王の馬は金色のカパリソンで飾られていました。
C2 noun /tʃɜːrl/

churl

Meaning
A rude, boorish, or ill-mannered person.
Example
The waiter was such a churl that customers left unhappy.
C2 noun /ˈkoʊdə/

coda

コーダ
Meaning
the concluding passage of a piece of music or a literary work
Example
The novel ends with a reflective coda that ties up the themes.
その小説は、テーマを結びつける反省的なコーダで終わります。
C1 adjective ˌkɒn.ʃiˈen.ʃəs

conscientious

良心的
Meaning
Wishing to do what is right, especially to do one's work or duty well and thoroughly.
Example
A conscientious worker always delivers high-quality results.
良心的な労働者は常に高品質な結果を提供します。
C1 noun /ˌkɒk.əˈtuː/

Cockatoo

コカトゥ
Meaning
a large parrot with a prominent crest that can be raised or lowered
Example
The white cockatoo raised its beautiful crest.
白いコカトゥは美しい冠羽を上げました。
C1 noun /kəʊˈhiːʒən/

cohesion

結束
Meaning
The action or fact of forming a united whole.
Example
The team showed excellent cohesion throughout the project.
チームはプロジェクト全体を通して素晴らしい結束を見せました。
B1 noun /kəmˈpær.ɪ.sən/

Comparison

比較
Meaning
the act of examining the similarities and differences between two or more things
Example
The teacher made a comparison between the two poems to show their different styles.
教師は2つの詩の比較をして、それらの異なるスタイルを示しました。
B1 noun /ˈtʃæn.əl/

Channel

チャンネル; 水路; 手段;
Meaning
a television or radio station; a passage for water or other liquids; a means of communication
Example
The news channel provided live coverage of the important event.
ニュースチャンネルは重要なイベントのライブ放送を提供しました。
A2 adjective /kənˈfjuːzɪŋ/

confusing

紛らわしい
Meaning
causing someone to be unable to think clearly or understand; difficult to comprehend
Example
The instructions were confusing and hard to follow.
その指示は紛らわしく、従うのが難しかった。
C2 adjective /ˈkʌmli/

comely

美しい
Meaning
Attractive or pleasant in appearance.
Example
The actress was known for her comely features.
女優は彼女の美しい特徴で知られていました。
C1 adjective /koʊˈɜːrsɪv/

coercive

強制的
Meaning
Relating to or using force or threats to make someone do something.
Example
The government faced criticism for adopting coercive measures against protestors.
政府は抗議者に対して強制的な措置を取ったことで批判を受けた。
B2 noun /ˈkruː.əl.ti/

Cruelty

残酷; 非人道的な扱い; 苦痛を引き起こす行動
Meaning
behavior that causes pain or suffering to others; the quality of being cruel
Example
The documentary exposed the cruelty of factory farming to animals.
ドキュメンタリーは、工場式農業が動物に対して行う残酷さを暴露した。
A2 adjective /ˈkɒm.ən/

common

共通
Meaning
occurring frequently or widely; shared by all
Example
It is common to see traffic in the city during rush hour.
ラッシュアワー中に都市で交通渋滞を見るのは一般的です。
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。
C2 noun /kəmˈpɛndiəm/

compendium

コンペンディウム
Meaning
A collection of concise but detailed information about a subject.
Example
The book is a compendium of ancient myths and legends.
その本は古代の神話と伝説のコンペンディウムです。
C1 verb /kəˈmɛmɔˌreɪt/

commemorate

記念する
Meaning
To honor and remember someone or something through a ceremony or action.
Example
The statue was built to commemorate the fallen heroes.
その像は、倒れた英雄たちを記念して作られました。
C2 noun /ˈkæn.toʊ/

canto

カント
Meaning
A main division of a long poem, especially in epic poetry.
Example
The Divine Comedy is divided into several cantos.
神曲は複数のカントに分かれています。
B1 verb /kleɪm/

claim

主張する
Meaning
to assert ownership; to state as fact
Example
He claims to be the rightful owner.
彼は自分が正当な所有者だと主張しています。
C2 noun /ˈtʃæt.əl/

chattel

動産 / 個人財産
Meaning
a personal possession; historically, movable property including slaves
Example
In the past, slaves were considered the chattel of their owners.
過去には、奴隷は所有者の動産と見なされていました。
C1 noun /kəmˈpʌl.ʃən/

Compulsion

強迫; 強制;
Meaning
the action or state of forcing or being forced to do something; an irresistible urge to behave in a certain way
Example
He felt a strong compulsion to check his phone every few minutes.
彼は数分おきに電話を確認したいという強迫感を感じていた。
B1 noun /ˈkæmpəs/

campus

キャンパス
Meaning
The grounds and buildings of a university, college, or school.
Example
The university campus is filled with students during the fall semester.
大学のキャンパスは秋学期中に学生でいっぱいです。
C1 noun kənˈvɜː.dʒəns

convergence

収束
Meaning
The process of coming together from different directions to meet at a common point; unification or integration.
Example
The convergence of technologies is revolutionizing industries.
技術の収束が産業を革命的に変革しています。
B1 adjective /kəˈlɛktɪd/

collected

冷静
Meaning
calm and in control of oneself
Example
She remained calm and collected during the crisis.
危機の間、彼女は冷静でコレクテッドでした。
A2 noun/verb /ˈsɜːrkəl/

circle

円
Meaning
a round shape; to move all the way around something
Example
The children sat in a circle.
子供たちは円形に座っていました。
B2 noun /kənˈvɜːrtər/

converter

変換器
Meaning
a device or person that changes something from one form, system, or use to another; a tool that converts data, energy, or materials
Example
The engineer used a converter to change AC power into DC power.
エンジニアは交流電力を直流に変えるために変換器を使いました。
C2 adjective /ˈkɔːpjʊlənt/

corpulent

肥満の, 太った
Meaning
fat or obese; having a large bulky body
Example
The corpulent man struggled to fit into the small chair.
その太った男性は、小さな椅子に座るのに苦労していました。
B2 noun ˌkʌl.tɪˈveɪ.ʃən

cultivation

栽培
Meaning
The practice of preparing and using land for crops or gardening; the action of improving or developing something.
Example
The cultivation of organic crops has increased worldwide.
有機作物の栽培は世界中で増加しています。
C1 adjective /ˌkɒnvəˈlɛsnt/

convalescent

回復中の、病気や治療から回復している
Meaning
recovering from an illness or medical treatment
Example
The hospital has a special ward for convalescent patients.
病院には回復中の患者のための特別な病棟があります。
C2 verb /ˈkʌzən/

cozen

だます, 騙す
Meaning
to deceive, cheat, or trick someone
Example
He cozened the old man out of his money.
彼は老人をだましてお金を取った。
C1 adjective /ˈkɑːr.di.æk/

cardiac

心臓の
Meaning
Relating to the heart.
Example
The patient was admitted with a cardiac condition.
患者は心臓の病状で入院しました。
C1 noun /kəˈmɪtl̩/

committal

収監 / 拘束
Meaning
The action of sending a person to prison or a mental hospital; also the act of committing something to a particular place.
Example
The judge ordered the committal of the accused to custody.
裁判官は被告を拘置所に送るよう命じました。
A2 verb /kənˈteɪn/

contain

含む
Meaning
to have or include within; to restrain or control
Example
This box contains important documents.
この箱には重要な書類が含まれています。
B2 adjective /kəmˈpækt/

Compact

コンパクト; 小さくて効率的にデザインされた
Meaning
closely and neatly packed together; small and efficiently designed
Example
She bought a compact car that fits easily in small parking spaces.
彼女は小さな駐車スペースにも簡単に収まるコンパクトカーを買った。
C2 adjective /ˈsɜːrkəmskraɪbd/

circumscribed

制限された
Meaning
restricted or limited in scope or freedom
Example
Her freedom of choice was circumscribed by social rules.
彼女の選択の自由は社会的なルールによって制限されていた。
B1 adjective, noun /ˈkɔːrpərət/

corporate

企業/コーポレートに関連する
Meaning
relating to a corporation or large company; united as a single body
Example
Corporate social responsibility is important for modern businesses.
企業の社会的責任は現代のビジネスにとって重要です。
C2 adjective kaɪˈmɛr.ɪ.kəl

chimerical

空想的、不可能な
Meaning
Illusory or impossible to achieve; existing only in imagination.
Example
His chimerical ideas often baffled realists.
彼の空想的なアイデアはしばしば現実主義者を困惑させました。
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 noun /ˌkɒnfɪˈdɑːnt/

confidante

信頼できる友人
Meaning
A woman with whom one shares a secret or private matter, trusting her not to repeat it.
Example
The queen’s maid became her most trusted confidante.
女王の侍女は最も信頼された友人になった。
A2 noun /ˈkoʊkənʌt/

Coconut

Meaning
a large brown seed with hard shell containing white flesh and coconut water
Example
We drank coconut water directly from the coconut.
B2 verb, noun /kəˈmjuːt/

commute

通勤
Meaning
Verb: to travel regularly between home and work; Noun: the journey to and from work.
Example
He commutes two hours every day to reach his office.
彼は毎日オフィスに着くために二時間通勤している。
C2 noun /ˌkɛəriˈætɪd/

caryatid

女性の姿をした柱
Meaning
A stone carving of a draped female figure, used as a supporting column in architecture.
Example
The ancient temple featured a caryatid holding up the roof.
古代の神殿には屋根を支えるカリアティッドがありました。
C2 noun /ˈklæŋər/

clangor

音、騒音
Meaning
A loud, resonant, and continuous noise, often metallic.
Example
The clangor of the church bells filled the town square.
教会の鐘の音が町の広場に響き渡った。
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。
B1 adjective /ˈtʃælɪndʒɪŋ/

challenging

挑戦的な
Meaning
difficult in a way that tests one's abilities
Example
The mountain climb was challenging but rewarding.
山登りは挑戦的だったが、報われた。
C2 noun /ˈtʃaɪ.nə roʊz/

China-rose

ハイビスカス
Meaning
a tropical flowering plant with large, showy flowers in various colors
Example
The bright red China-rose flowers decorated the entrance of the house.
鮮やかな赤いハイビスカスの花が家の入口を飾った。
C1 noun /ˈsɪtrɪk ˈæsɪd/

Citric Acid

クエン酸
Meaning
a natural acid found in citrus fruits, used as a food preservative and flavoring agent
Example
Add a pinch of citric acid to preserve the color of the fruit jam.
果物ジャムの色を保つためにクエン酸をひとつまみ加えてください。
A2 noun /tʃɜːrtʃ/

church

教会
Meaning
a building used for public Christian worship
Example
The old church in the village was built in the 18th century.
村の古い教会は18世紀に建てられました。
C1 verb /kənˈdʒɛst/

congest

混雑
Meaning
To block or overcrowd a space, making movement or flow difficult.
Example
Heavy traffic can congest the city streets during rush hour.
渋滞はラッシュアワーに都市の通りを混雑させることができます。
B1 noun, adjective /ˈkrɪmɪnəl/

criminal

犯罪者
Meaning
A person who has committed a crime; relating to crime
Example
The police arrested a dangerous criminal last night.
警察は昨夜、危険な犯罪者を逮捕しました。
A2 verb /ˈkʌvər/

cover

カバー
Meaning
to put something over or upon something else to protect or conceal
Example
Please cover the food to keep it fresh.
食べ物をカバーして、新鮮さを保ってください。
C2 noun /ˈkɔːrnɪs/

cornice

コーニス
Meaning
an ornamental molding around the wall of a room just below the ceiling
Example
The elegant cornice added a classical touch to the living room.
エレガントなコーニスはリビングルームにクラシックなタッチを加えました。
C2 noun /kəˈdɛnzə/

cadenza

精緻なソロパッセージ
Meaning
An elaborate solo passage in a piece of music, usually near the end.
Example
The pianist performed a brilliant cadenza before the final movement.
ピアニストは最後の楽章の前に素晴らしいカデンツァを演奏しました。
C1 verb /kəmˈpjuːt/

compute

計算する
Meaning
To calculate or determine by using a computer or mathematical methods.
Example
The software can compute the total cost in seconds.
そのソフトウェアは数秒で総コストを計算できます。
A2 adjective /ˈkʌlərfəl/

colorful

カラフル
Meaning
having bright colors; full of variety or interest
Example
The festival was full of colorful decorations.
その祭りはカラフルな装飾でいっぱいでした。
C2 noun /kənˈtraɪ.vəns/

contrivance

装置や計画
Meaning
a device or plan that is cleverly or artificially created
Example
The clock was an intricate contrivance of gears and springs.
その時計は歯車とバネの複雑な装置でした。
C2 noun /ˌser.əˈbreɪ.ʃən/

cerebration

思考
Meaning
the process of thinking or using the brain actively
Example
The lecture sparked intense cerebration among the students.
その講義は学生たちの間で激しい思考を引き起こした。
C1 noun /ˈkɒndɪmənt/

condiment

調味料/ソース
Meaning
a substance such as salt, mustard, or ketchup that is used to add flavor to food
Example
Ketchup is a popular condiment in many countries.
ケチャップは多くの国で人気の調味料です。
C1 noun, adjective /ˈsɛntənəri/ or /sɛnˈtɛnəri/

centenary

百年記念
Meaning
The hundredth anniversary of a significant event; relating to a period of 100 years.
Example
The school celebrated its centenary with a grand event.
学校は百年記念を盛大なイベントで祝いました。
C1 noun /kəˈnɛəri/

canary

カナリア
Meaning
a small, usually yellow bird known for its singing; also used as a warning sign in dangerous conditions
Example
The canary sang beautifully in its cage.
カナリアは自分の檻の中で美しく歌っていました。
B2 noun /ˈkænjən/

canyon

峡谷
Meaning
A deep gorge, typically one with a river flowing through it.
Example
The Colorado River carved the Grand Canyon over millions of years.
コロラド川は何百万年もかけてグランドキャニオンを作り上げました。
A2 adjective /ˈsɛntrəl/

central

中央の
Meaning
Situated in the middle; of the greatest importance.
Example
Water is central to human survival.
水は人間の生存にとって中央の役割を果たします。
A2 noun /kɔɪnz/

coins

コイン
Meaning
Flat, typically round pieces of metal issued by a government as money.
Example
He collected old coins from different countries.
彼はさまざまな国から古いコインを集めました。