circular
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
B2 adjective /ˈsɜːrkjələr/

circular

円形の
Meaning
shaped like a circle; round in form
Example
The kids sat in a circular arrangement around the campfire.
子供たちはキャンプファイヤーの周りに円形の配置で座っていました。
B2 noun /ˈkʌlprɪt/

culprit

犯人
Meaning
a person who is responsible for a crime or misdeed
Example
The police caught the culprit behind the robbery.
警察は強盗の背後にいる犯人を捕まえた。
C1 verb /ˈkrɪsən/

christen

洗礼名を付ける
Meaning
to give a name to someone at baptism or to name something officially
Example
They christened the ship after the queen.
彼らは船に女王の名前を付けました。
C2 noun /kənˈtrɪʃ.ən/

contrition

悔悟
Meaning
the state of feeling remorseful and repentant
Example
His contrition was evident after the apology.
謝罪後、彼の悔悟は明らかだった。
C1 noun /kəˈloʊkwiəˌlɪzəm/

colloquialism

口語表現
Meaning
a word or phrase used in informal speech or writing
Example
The novel is full of regional colloquialisms.
その小説は地域の口語表現で満ちている。
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。
C2 noun /ˌkʌl.pəˈbɪl.ɪ.ti/

culpability

有罪
Meaning
responsibility for a fault or wrong; blameworthiness
Example
The jury considered his level of culpability in the crime.
陪審員はその犯罪における彼の有罪の程度を考慮しました。
B2 noun /tʃʌŋk/

chunk

塊 / 断片
Meaning
a thick or solid piece of something
Example
She cut the cake into large chunks.
彼女はケーキを大きな塊に切った。
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。
C2 adjective /sɛnˈsɔːriəs/

censorious

過度に批判的な
Meaning
severely critical of others
Example
She was always censorious about her colleagues' mistakes.
彼女は同僚のミスに対して常に批判的でした。
C2 adjective /ˈkɒnfluənt/

confluent

合流
Meaning
Flowing together or merging; coming together at one point.
Example
The confluent streams formed a mighty river.
合流する小川が力強い川を作った。
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。
A2 noun /ˈsen.tʃər.i/

Century

世紀; 百年
Meaning
a period of one hundred years; a score of one hundred in cricket
Example
The ancient castle has stood for more than five centuries.
その古い城は500年以上も立っています。
B2 verb /kənˈfes/

confess

告白する
Meaning
to admit guilt or wrongdoing; to acknowledge
Example
He confessed his mistake to his teacher.
彼は自分のミスを教師に告白した。
C1 noun /ˌkɔr.diˈæl.ɪ.ti/

Cordiality

友情; 優しさ
Meaning
sincere affection and kindness; warm and friendly behavior
Example
The host's cordiality made all the guests feel welcome and comfortable.
ホストのコーディアリティはすべてのゲストが歓迎され、快適に感じさせました。
B1 noun ˈkeɪ.bəl

cable

ケーブル
Meaning
A thick rope of wire or nonmetallic fiber, typically used for construction, mooring ships, or transmitting electricity or telecommunication signals.
Example
The cable connects countries across continents.
ケーブルは大陸を越えて国々を接続します。
C1 noun /kæpˈtɪv.ɪ.ti/

Captivity

監禁
Meaning
the condition of being imprisoned or confined
Example
After years of captivity, the prisoner was finally released.
長年の監禁の後、囚人は最終的に解放されました。
C2 noun /ˈkær.ə.weɪ siːdz/

Caraway seeds

キャラウェイシード
Meaning
aromatic seeds of the caraway plant used as a spice in cooking and baking
Example
The bread was flavored with caraway seeds.
パンはキャラウェイシードで風味づけされた。
C1 adjective,noun /kənˈtɪn.dʒənt/

contingent

依存する / 代表団
Meaning
dependent on something else; a group of people representing an organization
Example
Attendance is contingent on prior registration. / A contingent of students attended the conference.
出席は事前登録に依存しています。 / 学生の代表団が会議に出席しました。
A2 adverb /ˈsɜː.tən.li/

Certainly

確かに
Meaning
without doubt; definitely; used to agree or give permission
Example
I will certainly help you with this project.
このプロジェクトであなたを確実に手伝います。
B1 adjective /ˈkɒn.stənt/

Constant

一定の; 変わらない; 安定した
Meaning
occurring continuously over a period of time; unchanging; steady
Example
The machine runs at a constant speed.
機械は一定の速度で動作します。
B2 noun; verb /ˈkætəlɒɡ/

catalogue

目録
Meaning
a complete list of items, typically one in alphabetical or systematic order; to make a systematic list of items
Example
The library decided to catalogue all new books digitally.
図書館はすべての新しい本をデジタルで目録化することにした。
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。
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。
A2 noun /ˈkʌpəl/

couple

カップル
Meaning
two people or things considered together; a pair
Example
They make a lovely couple and have been married for five years.
彼らは素敵なカップルで、5年間結婚しています。
C1 noun /ˌkɒnvəˈlɛsns/

convalescence

回復期
Meaning
the period of time spent recovering from an illness or medical treatment
Example
His convalescence lasted for almost two months after the accident.
事故の後、彼の回復期はほぼ2ヶ月続きました。
C2 noun /ˈklɪpər/

clipper

バリカン / 19世紀の速い帆船
Meaning
a tool used for cutting, or a fast sailing ship of the 19th century
Example
The barber used clippers to trim his hair.
床屋は髪を切るためにバリカンを使いました。
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。
C1 noun kənˌsɒl.ɪˈdeɪ.ʃən

Consolidation

記憶の定着
Meaning
The process of converting newly learned information into long-term memory
Example
Sleep plays a key role in memory consolidation.
睡眠は記憶の定着において重要な役割を果たします。
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。
C2 noun /kəˈlɒsəti/

callosity

硬い皮膚
Meaning
A thickened or hardened area of skin; insensitivity or hardness of character.
Example
Years of manual labor left callosity on his hands.
何年もの肉体労働が彼の手に硬い皮膚を残した。
B1 verb /ˈkɒntrækt/

contract

契約する
Meaning
to make smaller; to enter into a formal agreement
Example
The company will contract a new supplier for materials.
会社は新しい供給者と契約を結ぶでしょう。
B2 noun ˈkɛmɪkəl weɪst

chemical waste

化学廃棄物
Meaning
Waste material from industrial or laboratory processes that contains harmful chemicals.
Example
Chemical waste pollutes water bodies.
化学廃棄物は水域を汚染します。
C2 noun /krəˈdjuːlɪti/

credulity

信じやすさ
Meaning
A tendency to be too ready to believe that something is real or true.
Example
The scam succeeded because of the victim's credulity.
詐欺は被害者の信じやすさのおかげで成功した。
C2 adjective /kəˈnaɪ.vɪŋ/

conniving

陰険な
Meaning
secretly scheming or plotting to help in wrongdoing
Example
He is a conniving politician who manipulates people for power.
彼は権力のために人々を操る陰険な政治家です。
C2 verb /kənˈtjuːz/

contuse

打撲する
Meaning
to bruise by striking or hitting
Example
He contused his arm when he fell off the bike.
彼は自転車から落ちて腕を打撲しました。
A1 verb, noun /kraɪ/

cry

Meaning
To shed tears as an expression of emotion such as sadness or pain; also a loud call or shout.
Example
The baby began to cry when she was hungry.
B2 noun /ˈsɜːr.tən.ti/

Certainty

確実性
Meaning
firm conviction that something is the case; the quality of being reliably true
Example
We can say with certainty that the project will be completed on time.
私たちは確実にそのプロジェクトが時間通りに完了することを言えます。
A2 noun ˈsen.tərz

centers

センター
Meaning
The middle point of a circle or sphere, equidistant from every point on the circumference or surface; a place or group of buildings where a specified activity is concentrated.
Example
Centers drive regional development.
センターは地域の発展を促進します。
C1 noun /kənˈsep.ʃən/

Conception

構想; アイデア; 受精
Meaning
the forming of an idea or plan; the fertilization of an ovum by a sperm; the action of conceiving
Example
The conception of this innovative project took several months of brainstorming.
この革新的なプロジェクトの構想には数ヶ月のブレインストーミングが必要でした。
A2 noun /ˈkrɪk.ɪt/

Cricket

コオロギ
Meaning
a jumping insect that makes a chirping sound by rubbing its wings together
Example
We could hear crickets chirping in the evening.
私たちは夕方にコオロギの鳴き声を聞くことができました。
B1 adjective /ˈkəʊstəl/

coastal

海岸の
Meaning
relating to or near a coast or shoreline
Example
They built a resort in a coastal area.
彼らは海岸の地域にリゾートを建てました。
B2 noun /ˈkɜːr.tə.si/

Courtesy

礼儀; 優雅;
Meaning
the showing of politeness in one's attitude and behavior toward others; a polite gesture or remark
Example
He showed great courtesy by holding the door open for elderly people.
彼は高齢者のためにドアを開けたまま、非常に礼儀正しさを示しました。
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。
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。
B2 noun /ˌkɔːriˈændər/

Coriander

コリアンダー
Meaning
aromatic herb with feathery leaves used for flavoring food; also refers to the seeds used as spice
Example
Fresh coriander leaves are sprinkled on top of the curry.
新鮮なコリアンダーの葉がカレーの上にふりかけられます。
C1 verb /ˈkɒnfɪskeɪt/

confiscate

Meaning
to take something away officially, often as a punishment
Example
The teacher confiscated the student's phone during class.
A2 adjective /ˈkreɪzi/

Crazy

クレイジー; 極端に愚か; 何かに非常に熱狂している
Meaning
mentally ill; extremely foolish; wildly enthusiastic about something
Example
That's a crazy idea, but it might just work.
それはクレイジーなアイデアですが、うまくいくかもしれません。
B1 noun /ˈsɪtɪzənʃɪp/

citizenship

市民権
Meaning
the status of being a recognized member of a state or country, with rights and duties
Example
He applied for American citizenship after living there for ten years.
彼はアメリカに10年間住んだ後、アメリカ市民権を申請しました。
A2 noun /klaʊn/

Clown

道化師; サーカスの中で特に伝統的な衣装と誇張されたメイクをしたコメディアン
Meaning
a comic entertainer, especially one in a circus, wearing a traditional costume and exaggerated makeup
Example
The children laughed loudly at the funny clown's silly antics.
子供たちは面白いクラウンの愚かな仕草に大笑いしました。
B2 noun /kɒt/

Cot

コット
Meaning
a small bed, especially a portable one or one for a baby
Example
The baby sleeps peacefully in her cot.
赤ちゃんは彼女のコットで安らかに眠っています。
A2 noun /ˈtʃer.i/

Cherry

さくらんぼ
Meaning
a small round red or black fruit with a hard seed inside
Example
She picked fresh cherries from the tree in her garden.
彼女は庭の木から新鮮なさくらんぼを摘んだ。
A2 noun kɒsts

Costs

コスト
Meaning
An amount that has to be paid or spent to buy or obtain something.
Example
Reducing costs improves profit margins.
コストを削減すると、利益率が向上します。
C2 noun /ˈkɒn.tjʊ.mə.si/

contumacy

反抗, 頑固
Meaning
stubborn refusal to obey authority
Example
His contumacy led to his suspension from the council.
彼の反抗は、彼が評議会から停職された原因となった。
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。
C1 verb কনডেন্স

condense

凝縮する
Meaning
To change from gas to liquid form; to become denser.
Example
Water vapor condenses into raindrops.
水蒸気は雨滴に凝縮します。
B2 adjective /ˈkɒŋ.kriːt/

Concrete

固体; 実際; 目に見える; 具体的
Meaning
solid; real; tangible; actual and specific
Example
We need concrete evidence to support our claims.
私たちは私たちの主張を支持するために具体的な証拠が必要です。
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 verb /ˈkænvəs/

canvass

投票を求める
Meaning
to solicit votes or opinions; to examine thoroughly; to discuss in detail
Example
They will canvass the neighborhood for votes.
彼らは投票のために近隣を回るでしょう。
B2 noun /krɑk pɑt/

Crock pot

スロークッカー
Meaning
an electric cooking pot that cooks food slowly at low temperatures
Example
I put the chicken and vegetables in the crock pot before going to work.
仕事に行く前にチキンと野菜をスロークッカーに入れました。
B1 noun /ˈkɒləm/

column

Meaning
A vertical structure that supports a building; also a section of text arranged vertically in a newspaper or table.
Example
The ancient temple had tall marble columns.
B1 noun/verb /koʊd/

code

コード
Meaning
a system of words, letters, or symbols used to represent information or instructions
Example
He wrote a code to solve the problem on the computer.
彼はコンピュータで問題を解決するためのコードを書きました。
C2 noun /ˌkæθəˈlɪsɪti/

catholicity

普遍性, 開かれた考え
Meaning
Universality; broad-mindedness; acceptance of a wide variety of things.
Example
Her catholicity of interests makes her a fascinating person.
彼女のカトリシティな興味は、彼女を魅力的な人物にしています。
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。
C2 adjective /kənˈvɜːrsənt/

conversant

熟知、精通
Meaning
familiar with or knowledgeable about something
Example
She is conversant with the latest developments in technology.
彼女は最新の技術の進展に精通しています。
B2 adjective /ˈkeər.friː/

Carefree

心配のない; のんきな;
Meaning
free from anxiety or responsibility; lighthearted; worry-free
Example
She lived a carefree life, traveling the world without any worries.
彼女は心配事のない生活を送り、世界を心配なく旅していた。
C1 noun /ˈkæmi.oʊ/

cameo

カメオ
Meaning
a small but significant role in a play, film, or show, often performed by a well-known person
Example
The actor made a surprise cameo in the movie.
その俳優は映画でサプライズのカメオを果たした。
B2 adjective /ˌkɑː.di.əʊˈvæs.kjʊ.lər/

cardiovascular

心臓と血管に関連する
Meaning
Relating to the heart and blood vessels.
Example
Regular exercise improves cardiovascular health.
定期的な運動は心血管の健康を改善します。
C1 noun /ˈkæn.dɚ/

candor

率直
Meaning
The quality of being open, honest, and straightforward in speech or expression.
Example
She spoke with candor about the challenges she faced.
彼女は直面した課題について率直に話しました。
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。
B1 adjective /ˈsɪvəl/

civil

市民の
Meaning
Relating to ordinary citizens and their concerns, or being polite and courteous.
Example
They settled the matter through civil discussion.
彼らは市民的な議論を通じて問題を解決しました。
C1 noun /ˈkɒb.lər/

Cobbler

靴屋
Meaning
a person who repairs shoes and other leather goods
Example
The cobbler fixed my broken shoes perfectly.
靴屋は私の壊れた靴を完璧に修理しました。
C1 adjective /ˈkɔːrəl/

choral

合唱に関連する
Meaning
Relating to, written for, or performed by a choir or chorus.
Example
The church hosted a choral performance on Sunday.
教会は日曜日に合唱のパフォーマンスを開催しました。
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。
C2 verb /ˈkɔː.tə.raɪz/

cauterize

焼灼する
Meaning
to burn tissue to stop bleeding or prevent infection
Example
The doctor cauterized the wound to stop the bleeding.
医者は出血を止めるために傷を焼灼した。
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。
A2 verb /ˈkʌv.ərd/

covered

覆われた
Meaning
Protected by being placed over or wrapped; hidden from view.
Example
The forest is covered in greenery.
森は緑で覆われています。
B2 verb /kənˈfrʌnt/

confront

立ち向かう
Meaning
to face someone or something directly, especially in a challenge or conflict
Example
She had to confront her fears before making the speech.
彼女はスピーチをする前に恐怖と向き合わなければならなかった。
C1 adjective /kənˈdʒenɪtl/

congenital

先天的
Meaning
existing from birth, usually describing a disease or condition
Example
The child was born with a congenital heart defect.
その子供は先天的な心臓疾患を持って生まれました。
C1 verb /ˈkʌn.dʒər/

conjure

召喚する
Meaning
to summon something as if by magic; to imagine vividly
Example
The magician conjured a rabbit out of the hat.
魔法使いは帽子からウサギを召喚しました。
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。
C1 verb /ˈkrʌmpəl/

crumple

くしゃくしゃにする
Meaning
to crush something into folds or wrinkles
Example
He crumpled the paper and threw it in the bin.
彼は紙をくしゃくしゃにしてゴミ箱に投げ入れました。
C2 adjective /kəˈnjuːbiəl/

connubial

婚姻の
Meaning
Relating to marriage or the relationship of a married couple.
Example
They celebrated their connubial bliss with a honeymoon trip.
彼らはハネムーン旅行で婚姻の幸せを祝いました。
B1 noun /sɛl/

cell

細胞 / セル
Meaning
a small basic unit of life; or a small enclosed space like a prison room
Example
The prisoner was locked in a small cell.
囚人は小さなセルに閉じ込められた。
C2 adjective /ˈkoʊməˌtoʊs/

comatose

昏睡状態の
Meaning
In a state of deep unconsciousness, resembling or related to coma.
Example
The comatose patient was kept under constant observation.
その昏睡状態の患者は、継続的に観察されていました。
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 noun /ˈkɒn.vɔɪ/

convoy

コンボイ
Meaning
a group of vehicles or ships traveling together, often for protection
Example
The military convoy moved through the desert at dawn.
軍のコンボイは夜明けに砂漠を横断しました。
A2 adjective /ˈklɛvər/

clever

賢い, すばらしい
Meaning
Quick to understand, learn, and devise ideas or solutions; intelligent.
Example
She is clever enough to solve the puzzle quickly.
彼女はそのパズルを素早く解くのに十分賢いです。
C2 noun /kəˈrɑːləri/

corollary

直接的または自然な結果
Meaning
a direct or natural consequence or result
Example
One corollary of the new policy was increased public awareness.
新しい政策の結果の一つは、公共の認識の向上でした。
C1 verb /krɪndʒ/

cringe

縮む
Meaning
To shrink back in fear, embarrassment, or discomfort.
Example
She cringed when she remembered her mistake.
彼女は自分の間違いを思い出して、縮んだ。
B1 noun /ˈkæt.ər.pɪl.ər/

Caterpillar

毛虫
Meaning
the larva of a butterfly or moth that feeds on plants
Example
The caterpillar ate all the leaves on the plant.
毛虫は植物の葉をすべて食べました。
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。
C2 noun /kɒnˌtek.stʃu.ə.laɪˈzeɪ.ʃən/

contextualization

コンテキスト化
Meaning
The process of placing something in its proper context or setting to understand it better.
Example
Contextualization of historical events helps students understand them better.
歴史的な出来事のコンテキスト化は、学生がそれらをよりよく理解するのに役立ちます。
B1 adjective /kənˈtɪn.ju.əs/

continuous

連続的
Meaning
forming an unbroken whole; without interruption
Example
The factory operates on a continuous 24-hour schedule.
工場は24時間連続したスケジュールで稼働しています。
C1 noun /kənˈtɛndər/

contender

競争者, 立候補者
Meaning
a person or team competing for a title or prize
Example
She is a strong contender for the mayoral position.
彼女は市長職の強力な候補者です。
C1 adjective /ˌkɒnsɪˈkwɛnʃəl/

consequential

重要な
Meaning
Having important or significant consequences; resulting from something.
Example
The meeting was consequential for the future of the project.
その会議はプロジェクトの未来にとって重要でした。
C2 verb /ˈkrɪŋ.kəl/

crinkle

しわを寄せる
Meaning
To form small creases or wrinkles.
Example
She crinkled her nose at the strange smell.
彼女は奇妙な匂いで鼻をしかめた。
B1 adjective /kənˈsɪdərəbl/

considerable

かなりの
Meaning
large in amount, size, or importance
Example
The project required a considerable amount of time and money.
そのプロジェクトはかなりの時間とお金を必要としました。
A2 noun /ˈkɒlɪdʒ/

college

大学
Meaning
An educational institution where students study for degrees or professional qualifications.
Example
She hopes to attend college in the city next year.
彼女は来年、市内の大学に通うことを望んでいます。
B2 noun /ˈkæməˌflɑːʒ/

camouflage

カモフラージュ
Meaning
the act of hiding or disguising something by making it blend with its surroundings
Example
The soldiers used camouflage to hide from the enemy.
兵士たちは敵から隠れるためにカモフラージュを使用しました。
C1 noun kəˈlæt.ər.əl

collateral

担保、ローンの保証として提供される資産
Meaning
Something pledged as security for repayment of a loan, to be forfeited in the event of a default.
Example
The bank requires collateral for loan approval.
銀行はローン承認のために担保を要求します。
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 /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。
C2 noun /ˈkæl.əm.ni/

Calumny

中傷
Meaning
the making of false and defamatory statements about someone in order to damage their reputation
Example
The politician sued the newspaper for spreading calumny about his personal life.
その政治家は自分の私生活に関する中傷を広めた新聞に対して訴訟を起こした。
B2 noun /ˈkɒn.flɪkt ˌrez.əˈluː.ʃən/

conflict resolution

紛争解決
Meaning
The process of finding peaceful solutions to disputes or disagreements between parties.
Example
Conflict resolution is vital for global peace.
紛争解決は世界の平和にとって重要です。
C1 noun /kəˈnʌn.drəm/

conundrum

複雑な問題やパズル
Meaning
A complex problem or puzzle without an easy solution
Example
The ethical conundrum puzzled the researchers.
倫理的なジレンマは研究者たちを困惑させた。
B2 noun /kɜːrv/

Curve

曲線; カーブ
Meaning
a line or outline that gradually deviates from being straight; a bend or turn in a road or path
Example
The driver slowed down as he approached the sharp curve in the mountain road.
運転手は山道の急なカーブに近づくとスピードを落としました。
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。
A2 verb /klaɪm/

climb

登る
Meaning
to go up using hands and feet; to ascend
Example
We decided to climb the mountain.
私たちは山を登ることに決めました。
B2 verb /kənˈtɛnd/

contend

争う、主張する
Meaning
to strive or compete for something; to assert earnestly
Example
Athletes from around the world contend for the championship.
世界中のアスリートがチャンピオンシップを争っています。
A2 verb /tʃɪər/

cheer

応援する
Meaning
to shout in encouragement or support; to make someone feel happier
Example
The fans cheered loudly when their team scored a goal.
ファンはチームがゴールを決めたとき、大声で応援した。
B1 noun /ˌkɒmpəˈzɪʃən/

composition

作曲
Meaning
the act of creating a piece of writing, music, or art; the way parts are arranged
Example
Her composition won first prize in the contest.
彼女の作曲はコンテストで第一位を獲得しました。
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。
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。
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。
B2 verb /ˈklæsɪfaɪ/

classify

Meaning
to arrange or organize into categories or groups
Example
The librarian classified the books by subject.
B2 noun /kəˈθɒlɪsɪzəm/

catholicism

カトリック教
Meaning
The faith, practice, and church order of the Roman Catholic Church.
Example
Catholicism has a long history and rich traditions.
カトリック教には長い歴史と豊かな伝統があります。
C1 verb /kənˈsaɪn/

consign

委託する
Meaning
to deliver something to a person or place, often for selling or safekeeping
Example
He consigned the package to the shipping company.
彼は荷物を配送会社に委託しました。
C1 adjective /ˈkrɪm.zən/

Crimson

深紅
Meaning
a deep purplish-red color
Example
The crimson sunset painted the sky with beautiful shades.
深紅の夕日が美しい色合いで空を染めました。
B2 noun, verb /kɜːrs/

curse

呪い
Meaning
a solemn wish that harm or misfortune should befall someone; a rude or offensive word or phrase; to utter offensive words or wish harm upon someone
Example
He cursed loudly when he realized he had lost his wallet.
彼は財布をなくしたと気づいて大声で悪態をついた。
C1 noun/verb kənˈdʒɛk.tʃər

conjecture

推測
Meaning
An opinion or conclusion formed on the basis of incomplete information; to form an opinion or supposition about something.
Example
The scientist's conjecture was later proven true.
科学者の推測は後に正しいことが証明された。