cohorts
All a b c d e f g h i j k l m n o p q r s t u v w x y z
All CEFR A1 A2 B1 B2 C1 C2
Content locale
EN 英語 BN ベンガル語 HI ヒンディー語 ES スペイン語 FR フランス語 DE ドイツ語 RU ロシア語 ZH 中国語 JA 日本語
All Vocabulary Cards All Vocabularies
C1 noun /ˈkoʊhɔːrts/

cohorts

コホート
Meaning
Groups of people who share a common feature or experience.
Example
Researchers compared the health outcomes of different cohorts.
研究者たちは異なるコホートの健康結果を比較しました。
C1 adjective, noun /ˈkɑːr.dɪ.nəl/

cardinal

基本的な / 重要な
Meaning
As an adjective: of prime importance; as a noun: a high-ranking Catholic clergyman or a type of bird.
Example
Honesty is a cardinal virtue in life.
正直は人生における重要な美徳です。
A1 noun /ˈkʌl.ər/

color

色
Meaning
The property possessed by an object of producing different sensations on the eye as a result of the way it reflects or emits light.
Example
Blue is her favorite color.
青は彼女のお気に入りの色です。
C2 noun, verb /ˈkaʊntərˌtʃɑːrdʒ/

countercharge

反訴
Meaning
an opposing charge or accusation; to make an opposing attack
Example
The lawyer filed a countercharge against the accuser.
弁護士は告発者に対して反訴を提起しました。
A2 noun ʃef

chef

シェフ
Meaning
A professional cook, especially the chief cook in a restaurant or hotel.
Example
The chef specializes in avant-garde dishes.
シェフは前衛的な料理を専門としています。
C2 adjective /ˈkrɛstˌfɔːlən/

crestfallen

がっかりした
Meaning
sad and disappointed
Example
He looked crestfallen after hearing the bad news.
彼は悪い知らせを聞いてがっかりしていた。
B2 noun /kloʊv/

Clove

クローブ
Meaning
aromatic flower buds of a tree in the family Myrtaceae, used as a spice
Example
She added a few cloves to the mulled wine for extra flavor.
彼女はワインにいくつかのクローブを加えて、風味を増しました。
B2 noun /ˈkʌvərɪdʒ/

coverage

報道
Meaning
The extent or scope of something, such as insurance protection or media reporting.
Example
The news channel provided extensive coverage of the event.
ニュースチャンネルはそのイベントを広範囲に報道しました。
A2 adjective /ˈkjʊriəs/

curious

好奇心旺盛な
Meaning
Eager to know or learn something.
Example
The curious explorers asked questions about Antarctica.
好奇心旺盛な探検家たちは南極について質問をした。
B1 noun /ˈkaʊn.səl/

council

評議会
Meaning
an assembly of people chosen or elected to make decisions or advise on matters
Example
The city council voted to improve public transportation.
市議会は公共交通の改善のために投票しました。
B2 adverb /ˈkrɪtɪkli/

critically

重大に
Meaning
in a way that expresses disapproval or a very serious, important way
Example
He was critically injured in the accident.
彼は事故で重傷を負った。
B2 noun /ˈkɒpɪraɪt/

copyright

著作権
Meaning
the legal right of the creator of a work to control its use and distribution
Example
She holds the copyright for the book.
彼女はその本の著作権を持っています。
B2 noun /ˈsɛmɪˌtɛri/

cemetery

墓地
Meaning
a place where dead people are buried
Example
The old cemetery is located at the edge of the village.
古い墓地は村の端にあります。
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。
B1 noun, verb /ˈkrɛdɪt/

credit

Meaning
As a noun: the ability to obtain goods or services before payment; recognition for an achievement. As a verb: to publicly acknowledge someone's contribution.
Example
She received credit for her contribution to the project.
B2 noun /kəʊˌɔːdɪˈneɪʃən/

coordination

調整
Meaning
the process of organizing different elements to work together effectively
Example
The coordination between the teams was flawless.
チーム間の調整は完璧でした。
A1 verb /kliːn/

clean

掃除する
Meaning
To make something free from dirt, marks, or mess.
Example
She cleaned the kitchen before the guests arrived.
彼女はゲストが到着する前にキッチンを掃除しました。
C1 noun /ˈkæpɪˌlɛri/

capillary

毛細血管
Meaning
a very thin blood vessel that connects arteries and veins
Example
Oxygen passes from the blood into tissues through capillaries.
酸素は血液から組織に毛細血管を通って移動します。
B2 adverb /ˈkæʒ.u.ə.li/

Casually

カジュアルに; リラックスして非公式に
Meaning
in a relaxed and informal way; without much thought or preparation
Example
He casually mentioned that he was leaving.
彼はカジュアルに出発することを言った。
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。
C2 adjective /ˈkɑːrpɪŋ/

carping

愚痴
Meaning
continually complaining or finding fault in a petty way
Example
His carping attitude makes teamwork difficult.
彼の愚痴っぽい態度はチームワークを難しくします。
C1 adjective /ˈkɔːrdiəl/

Cordial

親切な; 誠実な; 心からの
Meaning
warmly friendly; sincere; heartfelt
Example
She gave us a cordial welcome at the front door.
彼女は玄関で私たちに親切な歓迎をしてくれました。
C1 verb /ˈkʌvət/

covet

切望する
Meaning
to desire something belonging to someone else
Example
He coveted his neighbor's new car.
彼は隣人の新しい車を欲しがっていました。
C1 noun /ˈkroʊniˌɪzəm/

cronyism

縁故主義
Meaning
The practice of favoring friends or associates, especially in political appointments or business deals.
Example
The company was accused of cronyism in hiring practices.
その企業は採用活動における親族主義で非難されました。
C1 noun /klaʊt/

clout

影響力
Meaning
influence or power, especially in politics or business
Example
The businessman has a lot of political clout.
そのビジネスマンは政治的な影響力を持っています。
C1 noun /tʃæmp/

champ

チャンピオン / 勝者
Meaning
an informal word for champion or winner.
Example
He is the new champ of the boxing tournament.
彼はボクシングトーナメントの新しいチャンピオンです。
B2 adjective + noun kriˈeɪtɪv ɪɡˈzɪbɪts

creative exhibits

創造的な展示
Meaning
Artistic displays or presentations that show originality and imagination.
Example
The creative exhibits highlighted recycling possibilities.
創造的な展示はリサイクルの可能性を強調しました。
A2 verb /kənˈfjuːz/

confuse

混乱させる
Meaning
To make someone unable to think clearly; to bewilder.
Example
The complex instructions confused the students.
複雑な指示が学生を混乱させた。
B2 adjective /kəmˈpærətɪv/

Comparative

比較の
Meaning
involving comparison between two or more things; relative
Example
The study showed comparative results between different teaching methods.
研究は異なる教育方法間の比較結果を示しました。
C2 noun /ˈklaʊdˌbɜːrst/

cloudburst

突然の豪雨
Meaning
a sudden and very heavy rainfall
Example
The picnic was ruined by a sudden cloudburst.
ピクニックは突然の豪雨で台無しになった。
B2 noun /kəˈmɪʃənər/

commissioner

コミッショナー
Meaning
an official in charge of a particular department or area
Example
The police commissioner addressed the media about the incident.
警察のコミッショナーは、事件についてメディアに話しました。
C1 noun /ˈkɑːrtrɪdʒ/

cartridge

カートリッジ
Meaning
A container holding a substance or device, such as ink for printers or bullets for firearms.
Example
The printer stopped working because the ink cartridge was empty.
プリンターはインクカートリッジが空になったため、動作を停止しました。
C2 noun /ˈsɜːrtɪˌtjuːd/

certitude

確信
Meaning
Absolute certainty or conviction about something.
Example
She spoke with certitude about the outcome of the case.
彼女は事件の結果について確信を持って話しました。
C1 adjective /ˈtʃɪə.ləs/

Cheerless

憂鬱な; 陰気な; 悲しい; 喜びのない
Meaning
lacking happiness or comfort; gloomy; depressing; without cheer
Example
The old house looked cheerless and abandoned in the winter rain.
古い家は冬の雨の中で寂しげで放置されているように見えました。
C2 noun /ˈkɒŋ.kɔː.dæt/

concordat

協定
Meaning
An agreement or treaty, especially between the Vatican and a secular government.
Example
The concordat established the rights of the church within the country.
そのコンコルダットは国における教会の権利を確立した。
B1 noun /ˈsɜːr.kəmˌsˌtæn.sɪz/

Circumstances

状況
Meaning
the conditions that affect a situation, action, or event; facts or conditions connected with or relevant to an event
Example
Under normal circumstances, she would have arrived by now.
通常の状況では、彼女はもう到着しているはずです。
A2 noun /klaʊd/

Cloud

雲
Meaning
a visible mass of condensed water vapour floating in the atmosphere above the ground
Example
Dark clouds gathered before the storm.
嵐の前に暗い雲が集まりました。
B2 noun /ˈklær.ɪ.ti/

clarity

明確さ
Meaning
The quality of being coherent and intelligible; transparency or lucidity.
Example
The speaker's clarity made the concept easy to understand.
スピーカーの明確さが概念を理解しやすくしました。
C1 adjective sɪˈlɛstʃəl

celestial

天体
Meaning
Positioned in or relating to the sky, or outer space as observed in astronomy.
Example
The celestial bodies in the sky were clearly visible last night.
空にある天体は昨夜はっきりと見えました。
C1 adjective /kɑːrˈnɪv.ər.əs/

Carnivorous

肉食動物
Meaning
feeding on other animals; meat-eating
Example
Lions are carnivorous animals that hunt other animals for food.
ライオンは他の動物を狩って食べる肉食動物です。
C1 adjective /ˈkɜːrsəri/

cursory

ざっとした
Meaning
Hasty and therefore not thorough or detailed.
Example
He gave the report only a cursory glance before the meeting.
彼は会議の前に報告書をざっと見た。
C2 verb /ˈtʃeɪ.sən/

chasten

戒める / 征服する
Meaning
to correct or discipline; to humble or subdue
Example
The coach chastened the team after their poor performance.
コーチは彼らの悪いパフォーマンスの後、チームを戒めた。
C1 verb /ˈkælɪˌbreɪt/

calibrate

Meaning
To adjust or mark something so it can be used accurately; to standardize.
Example
The technician calibrated the machine before starting the experiment.
B1 verb /ˈkæri aʊt/

carry out

実行する
Meaning
to perform or complete a task; to execute a plan
Example
The team carries out the project successfully.
チームはプロジェクトを成功裏に実行します。
A2 noun /ˈkaʊ.bɔɪ/

Cowboy

カウボーイ
Meaning
a man who tends cattle on a ranch, especially in the western United States
Example
The cowboy rode his horse across the vast prairie to find the cattle.
カウボーイは広大な草原を馬で走り、牛を探しに行った。
B2 noun /kaʊtʃ/

Couch

カウチ
Meaning
a long upholstered seat for more than one person, typically with a back and arms
Example
The family gathered on the couch to watch a movie.
家族はソファに集まり、映画を見ました。
B2 noun /tʃɔːr/

chore

家事
Meaning
A routine task, especially a household duty.
Example
Washing the dishes is my least favorite chore.
食器を洗うのは私の一番嫌いな家事です。
B1 verb /koʊˈɑːpəreɪt/

cooperate

協力する
Meaning
to work together; to collaborate
Example
The teams cooperate to achieve their common goals.
チームは共通の目標を達成するために協力しています。
C1 noun /ˈsɪstərn/

cistern

貯水槽
Meaning
A tank or container for storing water, usually for household use.
Example
The old house still had a cistern to collect rainwater.
古い家にはまだ雨水を集めるための貯水槽がありました。
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。
B2 verb /kəmˈpraɪz/

comprise

構成する
Meaning
To consist of or be made up of something.
Example
The committee comprises five members.
委員会は五人のメンバーで構成されています。
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。
B2 noun /ˈkæp.tɪv/

Captive

捕虜
Meaning
a person who has been taken prisoner or an animal that has been confined
Example
The captive was held in a small cell for several months.
捕虜は数ヶ月間小さな部屋に閉じ込められていた。
C2 noun /ˈkɒmɪti/

comity

礼儀、相互尊重
Meaning
Courtesy and considerate behavior towards others; mutual respect.
Example
The meeting was conducted with comity and respect.
会議は礼儀と尊重の精神で行われました。
A2 noun /ˈkær.ət/

Carrot

ニンジン
Meaning
a long pointed orange root vegetable that grows underground
Example
Carrots are rich in vitamin A.
ニンジンはビタミンAが豊富です。
C2 noun /ˈkɒn.tjʊ.mə.li/

contumely

侮辱, 軽蔑
Meaning
insulting or humiliating treatment
Example
He endured the contumely of his colleagues with patience.
彼は同僚の軽蔑を忍耐強く耐えました。
B2 noun /ˈkɒm.ɪt/

Comet

彗星
Meaning
a celestial object consisting of ice and dust that develops a tail when approaching the sun
Example
Halley's Comet appears in the sky every 76 years.
ハレー彗星は76年ごとに空に現れます。
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。
C1 noun ˈkɒnfluəns

confluence

合流
Meaning
An act or process of merging.
Example
The confluence of ideas from different cultures created a rich discussion.
異なる文化からのアイデアの合流は、豊かな議論を生み出しました。
C2 noun /ˈkɒn.tɪ.nəns/

continence

禁欲
Meaning
self-restraint, especially regarding bodily functions or desires
Example
He practiced continence to maintain focus on his studies.
彼は学業に集中するために禁欲を実践した。
C2 noun /ˈkɒrənɛt/

coronet

小さな王冠
Meaning
a small crown, especially one worn by a prince, princess, or noble
Example
She wore a delicate coronet on her head for the ceremony.
彼女は式典のために頭に繊細な小さな王冠をかぶっていました。
C1 adjective /ˈkæl.əs/

Callous

無情な; 冷酷な; 非情な
Meaning
showing or having an insensitive and cruel disregard for others; emotionally hardened
Example
He showed a callous disregard for others' feelings.
彼は他人の感情を無視して冷酷に振る舞った。
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。
B1 noun /ˈkɜːr.ənt/

Current

流れ
Meaning
a body of water or air moving in a definite direction; present time
Example
The river current was too strong for swimming.
川の流れは泳ぐには強すぎました。
B1 adverb /ˈkeərləsli/

carelessly

不注意に
Meaning
without care or attention; in a negligent or reckless manner
Example
He carelessly left the door unlocked.
彼は不注意にドアの鍵をかけ忘れた。
B2 noun /ˈkɒmənˌteɪtər/

commentator

解説者
Meaning
a person who reports and discusses events, especially on TV or radio
Example
The commentator described the football match in detail.
解説者はサッカーの試合を詳細に説明しました。
C1 adjective /ˈkɒn.keɪv/

concave

凹形
Meaning
curved inward like the inside of a bowl
Example
The mirror had a concave surface that magnified her reflection.
鏡は凹形の表面を持ち、彼女の反射を拡大しました。
B2 noun /ˈsɜːrkɪt/

circuit

回路 / 電気回路
Meaning
A roughly circular line, route, or movement that starts and ends at the same place; also an electrical pathway.
Example
The runners completed the circuit around the park.
ランナーは公園の周りの回路を完了しました。
B2 noun /kəmˈpæʃ.ən/

Compassion

思いやり
Meaning
sympathetic concern for the sufferings or misfortunes of others; deep awareness of suffering with a desire to help
Example
She showed great compassion towards the homeless children by providing them food and shelter.
彼女はホームレスの子供たちに食べ物と避難所を提供することで大きな思いやりを示しました。
A1 noun /kɑːr/

Car

車
Meaning
a four-wheeled motor vehicle used for transportation
Example
I drive my car to work every day.
私は毎日車で仕事に行きます。
C1 noun /ˈsɛtərə/

cetera

等々
Meaning
Latin for 'the rest' or 'others'; commonly used in the phrase 'et cetera' meaning 'and so on'.
Example
We need to buy pens, paper, notebooks, et cetera.
ペン、紙、ノートなどを買わなければなりません。
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。
B1 noun /ˈsɪtɪzən/

citizen

市民
Meaning
a legally recognized subject or national of a state
Example
Every citizen has the right to vote.
すべての市民は投票する権利を持っています。
C1 adjective /ˈkɔː.zəl/

causal

因果的
Meaning
relating to or acting as a cause
Example
There is a causal link between smoking and cancer.
喫煙と癌との間には因果関係があります。
B1 noun kəˈpæs.ə.ti

capacity

容量
Meaning
The maximum amount that something can contain or produce; the ability or power to do or understand something.
Example
The cable has the capacity to handle vast data traffic.
ケーブルは大量のデータトラフィックを処理する能力を持っています。
C2 verb /kənˈtɔːrt/

contort

歪む
Meaning
to twist or bend out of the normal shape
Example
She contorted her face in pain after the injury.
怪我をした後、彼女は痛みに顔を歪めた。
C1 noun /ˈkrɒkəri/

crockery

食器
Meaning
Dishes, plates, cups, and other items made of earthenware or china.
Example
The hotel provided clean crockery for the guests.
ホテルはゲストに清潔な食器を提供しました。
B1 adjective /ˈklæsɪk/

classic

クラシック, 優れた
Meaning
Judged over a period of time to be of the highest quality and outstanding of its kind.
Example
That movie is a classic example of 90s comedy.
その映画は90年代のコメディのクラシックな例です。
B2 noun ˈsɜːrkjələr ɪˈkɒnəmi

circular economy

循環型経済
Meaning
An economic system aimed at eliminating waste and the continual use of resources through reuse, sharing, repair, refurbishment, remanufacturing and recycling.
Example
Adopting a circular economy can reduce waste.
循環型経済を採用すると廃棄物を減らすことができます。
C1 adjective /kræs/

crass

無神経な、感受性や洗練さが欠けている
Meaning
lacking sensitivity, refinement, or intelligence
Example
His crass remarks offended everyone at the meeting.
彼の無神経な発言は会議で全員を怒らせました。
C2 noun /ˈkɔːrpəskəl/

corpuscle

小さな粒子または細胞、特に赤血球
Meaning
a small particle or cell, especially a blood cell
Example
Red corpuscles carry oxygen throughout the body.
赤血球は体内で酸素を運ぶ。
C1 noun /kuː/

coup

クーデター
Meaning
a sudden, decisive action that brings about a change, especially in government
Example
The military staged a coup to overthrow the existing regime.
軍隊は現政権を倒すためにクーデターを起こしました。
C1 noun /krʌks/

crux

核心
Meaning
the most important or decisive point of an issue
Example
The crux of the problem lies in poor communication.
問題の核心はコミュニケーション不足にあります。
C1 noun ˈklaɪmət ˌrɛɡjʊˈleɪʃən

climate regulation

気候調整
Meaning
The moderation of climate conditions through natural or artificial processes.
Example
Forests help in climate regulation by stabilizing local temperatures.
森林は地域の温度を安定させることで気候調整に役立ちます。
C1 adjective /kənˈtɛmptʃuəs/

contemptuous

軽蔑的, 侮辱的
Meaning
showing or expressing contempt; scornful
Example
She gave him a contemptuous glance.
彼女は彼に軽蔑のまなざしを向けた。
B2 adjective /ˈkɒn.trər.i/

Contrary

反対の; 対立する;
Meaning
opposite in nature, direction, or meaning; completely different
Example
Contrary to popular belief, cats can be very social animals.
一般的な信念とは反対に、猫は非常に社交的な動物であることができます。
B2 noun /ˌklæsɪfɪˈkeɪʃən/

classification

分類
Meaning
the action or process of classifying something into groups based on shared characteristics.
Example
The classification of animals helps in understanding their biology.
動物の分類は、彼らの生物学を理解するのに役立ちます。
B2 adverb /ˈkɒnsɪkwəntli/

consequently

その結果
Meaning
as a result; therefore
Example
He didn’t study, and consequently he failed the exam.
彼は勉強しなかったので、その結果試験に落ちた。
C2 verb /ˈkæstɪˌɡeɪt/

castigate

厳しく非難する
Meaning
To criticize someone severely or to punish harshly.
Example
The teacher castigated the students for their poor behavior.
教師は生徒たちの悪い行動を叱責しました。
C1 noun/verb /ˈsaɪ.fər/

cipher

暗号
Meaning
A secret or disguised way of writing; a code; to put a message into secret writing.
Example
Military messages are protected using a cipher.
軍事的なメッセージは暗号を使って保護されます。
B2 noun kənˈtrækʃən

contraction

収縮
Meaning
The process of becoming smaller; a decrease in size or quantity.
Example
The economic contraction resulted in a rise in unemployment.
経済の収縮は失業率の上昇を招いた。
A1 noun /ˈkrɪsməs/

christmas

クリスマス
Meaning
an annual festival celebrating the birth of Jesus Christ, observed on December 25
Example
Families gather to celebrate Christmas with joy and love.
家族は喜びと愛を持ってクリスマスを祝うために集まります。
B2 noun /kɔːrps/

corpse

遺体
Meaning
a dead body, especially of a human
Example
The police discovered a corpse in the abandoned house.
警察は廃墟の家で遺体を発見しました。
A2 verb kriˈeɪt

create

創造する
Meaning
To bring something into existence; to make or produce something new.
Example
Unmanaged growth can create complex challenges.
管理されていない成長は複雑な課題を創造する可能性があります。
C1 verb /ˌkaʊntərˈækt/

counteract

反作用
Meaning
to act against something in order to reduce its effect
Example
The medicine helps counteract the side effects of the treatment.
その薬は治療の副作用をカウンターアクトするのに役立ちます。
B2 verb /siːs/

cease

停止する
Meaning
to bring or come to an end; to stop doing something
Example
The noise ceased as soon as the children went inside.
騒音は子供たちが中に入るとすぐに止まりました。
C1 adverb kəmˈpæktli

compactly

コンパクトに
Meaning
In a closely packed or dense manner.
Example
Protons and neutrons are compactly arranged.
陽子と中性子はコンパクトに配置されています。
A1 noun /ˈtʃɪk.ən/

Chicken

鶏
Meaning
a domestic fowl kept for its eggs or meat; the meat of this bird used as food
Example
The chicken laid fresh eggs every morning.
その鶏は毎朝新鮮な卵を産みました。
B2 noun /ˈkɒnsənənt/

consonant

子音
Meaning
A speech sound produced by blocking air flow, or a letter representing such a sound.
Example
The word 'cat' has two consonants and one vowel.
‘猫’という単語には、2つの子音と1つの母音があります。
A2 noun /kənˌɡrætʃ.əˈleɪ.ʃənz/

Congratulations

おめでとう
Meaning
words expressing praise for an achievement or good wishes on a special occasion
Example
Congratulations on your promotion! You really deserved this success.
昇進おめでとう！本当にこの成功に値するよ。
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。
C2 adjective /kɒnˈsæŋɡwɪn/

consanguine

血縁関係の
Meaning
Of the same blood or origin; related by birth.
Example
The two families were consanguine through their grandparents.
二つの家族は彼らの祖父母を通じて血縁関係にあった。
B1 noun /ˌkɒn.trɪˈbjuː.ʃən/

contribution

貢献
Meaning
A gift or payment to a common fund or collection.
Example
His contribution to the project was vital.
彼の貢献はプロジェクトにとって重要でした。
B2 adverb /kənˈsɪstəntli/

consistently

一貫して
Meaning
in a way that does not vary; regularly and dependably
Example
She has been performing consistently well in her studies.
彼女は学業で一貫して良い成績を収めています。
B2 noun /ˌsɜː.kjʊˈleɪ.ʃən/

circulation

ja_translation
Meaning
The movement of blood through the body, or the movement of any fluid through a closed system.
Example
Proper circulation ensures that oxygen and nutrients reach every cell.
ja_example_sentence_translation
A1 verb /kɔːst/

cost

費用
Meaning
to have a price of; to require payment; to cause loss
Example
This book will cost twenty dollars.
この本は二十ドルかかります。
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。
A2 noun /ˈkɒnsət/

concert

コンサート
Meaning
A musical performance given by one or more singers or musicians.
Example
We went to a concert last night and enjoyed the live music.
私たちは昨晩コンサートに行き、ライブ音楽を楽しみました。
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。
C1 noun /ˈkɒnstənsi/

constancy

不変/忠実
Meaning
the quality of being faithful and dependable
Example
Her constancy in friendship is admirable.
彼女の友情での忠実さは賞賛に値します。
B2 noun/verb /kəˈmjuː.tɪŋ/

commuting

通勤
Meaning
Regular travel to and from workplace, daily journey for work.
Example
He spends two hours commuting to work every day.
彼は毎日仕事に行くために2時間通勤します。
C2 noun /kənˈkɔːrdəns/

concordance

一致性
Meaning
Agreement; also an alphabetical index of the principal words in a book.
Example
There is a strong concordance between the two reports.
二つの報告書には強い一致性があります。
B1 noun /klɪf/

cliff

崖
Meaning
a high, steep face of rock or earth
Example
The waves crashed against the bottom of the cliff.
波は崖の底にぶつかりました。
B2 adjective /kənˈtɛmpərɛri/

contemporary

現代的な, 現代の
Meaning
belonging to the same time period; modern
Example
She enjoys contemporary art exhibitions.
彼女は現代アートの展示を楽しんでいます。
C1 noun /ˈʃɪvəlri/

chivalry

騎士道
Meaning
The medieval knightly system with its moral, social, and religious code; courteous behavior, especially toward women.
Example
The knight lived by the code of chivalry.
騎士は騎士道の規範に従って生きていました。
C1 adjective /kəmˈpʌlsɪv/

compulsive

強迫的
Meaning
Resulting from or acting on an irresistible urge, especially one that is against one's conscious wishes.
Example
He is a compulsive gambler who cannot stop placing bets.
彼は賭けをやめられない強迫的なギャンブラーです。
C2 noun /ˈkeɪ.tɪf/

caitiff

卑怯者
Meaning
A contemptible or cowardly person.
Example
The knight despised the caitiff who betrayed his comrades.
騎士は仲間を裏切った卑怯者を軽蔑していた。
C1 noun/verb /kruːˈseɪd/

crusade

十字軍、激しいキャンペーン
Meaning
a vigorous campaign for a social, political, or religious cause; to fight passionately for a cause
Example
She has been crusading for women's rights all her life.
彼女は一生を女性の権利のために戦っています。
C1 noun /kəˈlæm.ɪ.ti/

Calamity

災害; 大惨事
Meaning
an event causing great and often sudden damage or distress; a disaster
Example
The earthquake was a terrible calamity that affected thousands of families.
地震は恐ろしいカラミティで、何千人もの家族に影響を与えました。
B2 noun /kəˈlɪʒ.ən/

Collision

衝突; ぶつかり合い
Meaning
an instance of one moving object hitting violently against another; a conflict of opposing ideas or interests
Example
The collision between two cars caused a major traffic jam.
二台の車の衝突で大きな渋滞が発生しました。
B2 noun /ˌkɑː.bəʊˈhaɪ.dreɪts/

carbohydrates

炭水化物
Meaning
Organic compounds consisting of carbon, hydrogen, and oxygen, serving as a primary source of energy for the body.
Example
Whole grains are a great source of healthy carbohydrates.
全粒穀物は健康的なカーボハイドレートの素晴らしい源です。