breakthrough
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 noun ˈbreɪk.θruː

breakthrough

ブレークスルー
Meaning
A sudden, dramatic, and important discovery or development.
Example
The breakthrough opens doors for new technology.
このブレークスルーは新しい技術への扉を開きます。
C2 noun /nɑːrˈsɪsəs/

narcissus

ナルシスの花
Meaning
A type of flowering plant with yellow or white blooms, often associated with self-love from Greek mythology.
Example
A narcissus bloomed in the garden during spring.
春に、庭でナルシスの花が咲きました。
B2 noun /ɪɡˈzæmɪnər/

examiner

試験官
Meaning
A person who tests or inspects knowledge, skills, or qualifications
Example
The examiner reviewed each student's answer sheet carefully.
試験官は各学生の答案用紙を注意深く確認した。
C1 adjective /ˈwaɪ.li/

Wily

ずる賢い; ずるい; 狡猾な
Meaning
clever; cunning; sly
Example
The wily fox escaped from the trap using his cunning intelligence.
ずる賢いキツネはその狡猾な知恵を使って罠から逃げた。
C2 verb /ˈbændi/

bandy

Meaning
To pass (words, ideas, or gossip) back and forth in a casual or argumentative way.
Example
They bandied jokes across the table.
C1 verb /ˈstaɪfəld/

stifled

抑える
Meaning
to suppress, hold back, or prevent something from happening
Example
He stifled a laugh during the serious meeting.
彼は真面目な会議中に笑いを抑えた。
C1 adjective /ˈbækˌhændɪd/

backhanded

間接的または皮肉な
Meaning
Indirect or sarcastic, often appearing as praise but actually insulting.
Example
She gave him a backhanded compliment about his work.
彼女は彼の仕事に対して間接的な褒め言葉を言った。
C1 adjective /ˈɜːr.θən/

Earthen

土や粘土で作られた; 陶芸に関連する
Meaning
made of earth or clay; relating to pottery or ceramic materials
Example
The kitchen had beautiful earthen pots for storage.
キッチンには収納用の美しい土の鉢がありました。
B2 adjective /rɪˈfreʃ.ɪŋ/

Refreshing

さわやか
Meaning
making one feel energized and renewed; pleasantly new or different
Example
The cool breeze was refreshing after the hot day.
暑い一日後の涼しい風はさわやかだった。
C2 noun /fɪˈlæt.əl.i/

philately

切手収集
Meaning
the collection and study of postage stamps
Example
Philately is a hobby enjoyed by people of all ages.
切手収集はすべての年齢層の人々に楽しまれている趣味です。
B2 adjective /ˈɑːrbɪˌtrɛri/

arbitrary

任意の
Meaning
based on random choice or personal whim, rather than reason or system
Example
The teacher's arbitrary grading upset many students.
教師の任意の採点は多くの学生を困らせました。
B2 adjective /rɪˈspɒn.sɪv/

Responsive

反応が早い
Meaning
reacting quickly and positively; readily reacting to suggestions or changes
Example
The website is very responsive and loads quickly on all devices.
そのウェブサイトは非常にレスポンシブで、すべてのデバイスで迅速に読み込まれます。
C1 adjective ˌɪn.təˈdɪs.ɪ.plɪ.nər.i

interdisciplinary

学際的
Meaning
Relating to more than one branch of knowledge.
Example
The interdisciplinary approach in education enhances problem-solving skills.
教育における学際的アプローチは、問題解決スキルを向上させる。
C2 adjective /dɪˈstreɪ/

distrait

ぼんやりした
Meaning
deeply distracted or absent-minded, often due to worry or grief
Example
He looked distrait after hearing the sad news.
悲しい知らせを聞いた後、彼はぼんやりしているように見えた。
B2 noun /kənˈstɪtʃ.u.ənts/

constituents

構成要素
Meaning
Components or elements used to create something.
Example
Proteins and vitamins are essential constituents of a healthy diet.
プロテインとビタミンは健康的な食事の重要な構成要素です。
C1 adjective ˌkaʊntəprəˈdʌktɪv

counterproductive

逆効果
Meaning
Having the opposite of the desired effect; tending to hinder rather than help.
Example
Counterproductive activities often stem from dissatisfaction.
反生産的な活動は、不満から生じることが多いです。
C2 adjective /dɪˈluːsɪv/

delusive

欺瞞的
Meaning
Giving a false or misleading impression; deceptive.
Example
His promises turned out to be delusive and untrustworthy.
彼の約束は欺瞞的で信頼できないことが証明されました。
B1 noun /bɪˈheɪ.vjər/

Behaviour

行動
Meaning
the way a person or animal acts or conducts themselves
Example
His behaviour at the meeting was very professional.
彼の会議での行動は非常にプロフェッショナルでした。
C1 noun /ˈkɔːl.drən/

Cauldron

大釜
Meaning
a large metal pot with a lid and handle, used for cooking over a fire
Example
The witch stirred her potion in a large cauldron.
魔女は大きな鍋で薬をかき混ぜていた。
C1 verb /əˈprɛs/

oppress

抑圧する
Meaning
to keep someone down by harsh and unfair use of authority; to suppress
Example
The dictator oppressed the people for decades.
独裁者は何十年も人々を抑圧した。
C1 verb /ˈɡɑː.nər/

garner

集める
Meaning
To gather or collect, especially information, support, or approval.
Example
The politician garnered support from young voters.
政治家は若い有権者から支持を集めた。
C2 noun /ˈlɪtərdʒi/

liturgy

典礼
Meaning
A form or formulary according to which public religious worship is conducted.
Example
The priest followed the liturgy during the Sunday mass.
司祭は日曜日のミサで典礼に従いました。
C2 verb /ˈpɜːrdʒər/

perjure

偽証する
Meaning
To knowingly tell a lie in a court of law after swearing to tell the truth.
Example
He was accused of trying to perjure himself during the trial.
彼は裁判中に偽証しようとしたとして告発されました。
C1 adjective /ˈskeɪ.li/

Scaly

鱗状の
Meaning
covered with scales; having a rough surface like scales
Example
The fish has scaly skin.
その魚はうろこ状の皮膚を持っています。
C2 adjective /ˈdaʊti/

doughty

勇敢な
Meaning
brave, valiant, courageous
Example
The doughty soldier never backed down from a challenge.
勇敢な兵士は挑戦から決して後退しなかった。
C1 verb /ˈpɒstʃʊleɪt/

postulate

仮定する
Meaning
to suggest or assume that something is true as the basis for reasoning or discussion
Example
Scientists postulate that life exists on other planets.
科学者たちは他の惑星に生命が存在すると仮定しています。
B2 adjective /ˌʌnrɪˈzɒlvd/

unresolved

未解決の
Meaning
not solved or settled; remaining undecided or unclear
Example
The dispute remains unresolved despite several meetings.
その問題は何度も会議をしたにもかかわらず未解決のままだ。
C2 noun /ˌsæv.wɑːr ˈfeər/

savoir-faire

社交術
Meaning
The ability to act or speak appropriately in social situations; polished social skills.
Example
She handled the delicate situation with remarkable savoir-faire.
彼女は見事な社交術で微妙な状況をうまく処理しました。
C1 verb /trænsˈɡrɛs/

transgress

Meaning
to go beyond the limits of a moral law, command, or boundary; to sin
Example
He apologized after realizing he had transgressed the community's rules.
B1 noun /ˈpɔːrʃən/

portion

部分
Meaning
A part or share of something.
Example
She ate only a small portion of the meal.
彼女は食事のほんの一部を食べました。
C1 verb /dɪˈvɒlv/

devolve

委譲する
Meaning
To pass power, responsibility, or duties to another person or group.
Example
The responsibility will devolve on the new manager.
責任は新しいマネージャーに委譲されます。
B2 noun /ˈspætʃ.ʊ.lə/

Spatula

スパチュラ
Meaning
a kitchen utensil with a flat, flexible blade used for mixing, spreading, or lifting food
Example
I used a spatula to flip the pancakes in the pan.
私はフライパンでパンケーキをひっくり返すためにスパチュラを使いました。
C1 adjective /ˈhɔːltɪŋ/

halting

ためらい
Meaning
slow and hesitant, especially due to lack of confidence
Example
She gave a halting reply during the interview.
彼女は面接中にためらいながら答えました。
B2 adjective /əˈdʒeɪsənt/

Adjacent

隣接する
Meaning
পার্শ্ববর্তী; সংলগ্ন; নিকটবর্তী;
Example
The hotel is adjacent to the shopping mall.
ホテルはショッピングモールの隣にあります。
B2 noun /prɔːn/

Prawn

エビ
Meaning
a large marine crustacean similar to shrimp but typically bigger
Example
The chef prepared delicious prawn curry with coconut milk.
シェフはココナッツミルクでおいしいエビカレーを作りました。
C1 verb /ˌoʊvərˈriːtʃ/

overreach

過剰な努力
Meaning
to go beyond what is proper, acceptable, or achievable; to overextend
Example
The politician overreached by making promises he couldn't keep.
その政治家は約束を守れなかったことで過剰な努力をしました。
C1 adverb/adjective /vɜːˈbeɪ.tɪm/

verbatim

文字通りまたは逐語的に
Meaning
In exactly the same words as were used originally; word for word repetition.
Example
She repeated his instructions verbatim to avoid errors.
彼女は誤りを避けるために彼の指示を文字通り繰り返しました。
B2 noun, verb /rɪˈzɔːrt/

resort

リゾート / 最後の手段
Meaning
A place for rest or recreation; to turn to something for help or solution.
Example
They stayed at a beach resort during their vacation.
彼らは休暇中にビーチリゾートに滞在しました。
C2 noun /ˈmoʊlə ˈkɑrplɪt/

Mola carplet

モラ魚
Meaning
a small freshwater fish of the carp family, commonly found in South Asian rivers and ponds
Example
The mola carplet is a popular small fish used in Bengali cuisine.
モラ魚はベンガル料理でよく使われる人気の小さな魚です。
C2 noun /ɪˈnænɪti/

inanity

馬鹿げたこと, 空虚
Meaning
a nonsensical remark or action; silliness; emptiness
Example
The speech was full of inanities that bored the audience.
スピーチは聴衆を退屈させる馬鹿げたことだらけだった。
C1 noun /ˈpræɡ.mə.tɪ.zəm/

pragmatism

実用主義
Meaning
A practical approach to problems and affairs; dealing with things sensibly and realistically.
Example
His pragmatism helped solve the financial crisis.
彼の実用主義は、金融危機の解決に役立った。
C1 verb /ˌʌndəˈreɪt/

underrate

過小評価
Meaning
to fail to recognize the full value or importance of something or someone
Example
Many people underrate the benefits of regular exercise.
多くの人々が定期的な運動の利点を過小評価しています。
B2 verb /ɪnˈɡeɪdʒɪŋ/

engaging

関与する
Meaning
Participating or becoming involved in; occupying or attracting someone's interest or attention.
Example
Engaging youth in education is essential.
教育に若者を関与させることは重要です。
C2 verb /ˈdʒæbər/

jabber

おしゃべりする
Meaning
To talk quickly and excitedly but with little sense.
Example
The children jabbered happily after the show.
子供たちはショーの後に楽しそうにおしゃべりしました。
C1 verb /ˈmɑːrʃəl/

marshal

整理する
Meaning
To arrange or organize people, events, or resources in an orderly way.
Example
The teacher marshaled the students for the field trip.
教師は遠足のために生徒を整列させました。
C1 noun /ˈkwɔːrəm/

quorum

定足数
Meaning
The minimum number of members needed to conduct official business in a meeting.
Example
The board meeting was postponed because there was no quorum.
クォーラムがなかったため、理事会の会議は延期されました。
C2 noun /ˈɛdi/

eddy

渦巻き
Meaning
A circular movement of water, air, or smoke, counter to the main current, causing a small whirlpool or turbulence.
Example
The canoe was caught in an eddy near the rocks.
カヌーは岩の近くで渦巻きに巻き込まれた。
B2 noun /djuː/

Dew

Meaning
tiny drops of water that form on cool surfaces at night when atmospheric water vapour condenses
Example
The morning dew glistened on the grass.
朝露が草の上で輝いていました。
C1 noun /ˈkaʊn.tər kleɪm/

counter-claim

反訴
Meaning
a claim made to rebut a previous claim, often in legal contexts
Example
The defendant filed a counter-claim against the plaintiff.
被告は原告に対して反訴を提起しました。
B2 adverb /ˌnʌnðəˈlɛs/

nonetheless

それにもかかわらず
Meaning
in spite of that; nevertheless
Example
It was raining, but nonetheless, they went hiking.
雨が降っていましたが、それにもかかわらず、彼らはハイキングに行きました。
B1 noun ˈɪmpækt

impact

影響
Meaning
A strong effect or influence; the action of one object coming forcibly into contact with another.
Example
The decision had great impact.
その決定は大きな影響を与えた。
B2 noun /ˈʃeɪndʒ ˈmænɪdʒmənt/

change management

チェンジマネジメント
Meaning
The discipline that guides how we prepare, equip and support individuals, teams and organizations in making organizational change.
Example
Change management ensures smooth transitions.
チェンジマネジメントはスムーズな移行を保証します。
B2 noun /ˌɛksɪˈkjuːʃən/

execution

実行、遂行
Meaning
the act of carrying out a plan, order, or legal sentence
Example
The success of a project depends on its proper execution.
プロジェクトの成功はその適切な実行に依存します。
B2 verb /klɪŋ/

cling

幸せ
Meaning
to hold on tightly to someone or something
Example
The child clung to his mother in fear.
彼女は賞を受け取ったとき、幸せを隠せなかった。
A1 number /eɪt/

eight

Meaning
The number equivalent to the product of two and four; one more than seven.
Example
There are eight apples in the basket.
バスケットには八つのリンゴがあります。
C1 noun /ˈæpəθi/

apathy

無関心
Meaning
a lack of interest, enthusiasm, or concern
Example
The students showed apathy towards the new rules.
学生たちは新しいルールに無関心を示しました。
C1 noun dɪˌlɪb.əˈreɪ.ʃən

deliberation

熟考
Meaning
Long and careful consideration or discussion.
Example
The agreement was finalized after much deliberation.
その合意は多くの熟考の末に最終決定されました。
C2 verb /dɪsˈtɛnd/

distend

膨張する
Meaning
to swell or expand by pressure from within
Example
Her stomach began to distend after the large meal.
大きな食事の後、彼女のお腹は膨らみ始めました。
B2 noun ˈsoʊʃəl rɪˌspɒnsəˈbɪləti

social responsibility

社会的責任
Meaning
The duty to act in ways that benefit society as a whole.
Example
Social responsibility should be part of the education curriculum.
社会的責任は教育課程の一部であるべきです。
C2 noun /ɪˈrɛvərəns/

irreverence

不敬
Meaning
a lack of respect for people or things that are generally taken seriously
Example
His jokes about religion showed irreverence to the sacred traditions.
宗教についての彼の冗談は、神聖な伝統に対する不敬を示していました。
C2 adjective /ˌdɛbəˈnɛr/

debonair

魅力的
Meaning
confident, stylish, and charming, typically referring to a man
Example
He looked debonair in his tuxedo at the gala.
彼はガラでタキシードを着て魅力的に見えました。
C2 noun /ˈlev.ɪ.ti/

Levity

軽薄さ; フリヴォリティ; 尊重の欠如
Meaning
humor or frivolity, especially the treatment of a serious matter with humor or in a manner lacking due respect
Example
The levity in the courtroom was inappropriate.
法廷での軽薄さは不適切でした。
C2 noun /lɒŋ ˈwɪskəd ˈkætfɪʃ/

Long whiskered catfish

ナマズ
Meaning
A type of freshwater fish with long whisker-like barbels around its mouth
Example
The fisherman caught a long whiskered catfish in the river.
漁師は川で長いひげのナマズを捕まえた。
A2 adjective /kəˈneɪdiən/

canadian

カナダの
Meaning
Relating to Canada or its people.
Example
She enjoys Canadian culture and traditions.
彼女はカナダの文化と伝統を楽しんでいます。
B1 adverb /ˈkloʊsli/

closely

幸せ
Meaning
in a way that is very near in space, time, or relationship; carefully and attentively
Example
The detective examined the evidence closely.
彼女は賞を受け取ったとき、自分の幸せを隠すことができなかった。
C1 adjective /ʌnˈwɪtɪŋ/

unwitting

無自覚
Meaning
Not aware of what is happening; done without realizing.
Example
She became an unwitting participant in the scam.
彼女は詐欺の無自覚な参加者になった。
B1 noun /ˈdaɪ.mənd/

Diamond

ダイヤモンド
Meaning
a precious stone that is extremely hard and brilliant when cut
Example
She wore a diamond ring on her finger.
彼女は指にはダイヤモンドの指輪を着けていた。
C1 noun /ˈæd.və.ser.i/

adversary

対戦相手
Meaning
One's opponent in a contest, conflict, or dispute.
Example
The boxer faced a strong adversary in the ring.
ボクサーはリングで強い対戦相手に立ち向かった。
C1 adjective /ˈmeɪkˌʃɪft/

makeshift

即席の
Meaning
used as a temporary substitute; improvised
Example
They used boxes as a makeshift table.
彼らは箱を即席のテーブルとして使った。
C1 verb /ˈflʌtər/

flutter

羽ばたく / 震える
Meaning
to move or flap quickly and lightly; to beat or wave with small rapid motions
Example
The butterfly began to flutter its wings in the sunlight.
蝶が日光の中で羽ばたき始めた。
C1 noun ˈmaɪ.krəʊˌnjuː.tri.ənts

micronutrients

微量栄養素
Meaning
Essential nutrients required by organisms in small quantities throughout life to orchestrate a range of physiological functions.
Example
Micronutrients are essential for cellular function.
微量栄養素は細胞機能に不可欠です。
C2 noun /ˈstætɪks/

statics

静力学
Meaning
The branch of mechanics dealing with bodies at rest and forces in equilibrium.
Example
She is studying statics as part of her engineering course.
彼女は工学のコースの一環として静力学を学んでいます。
A1 verb /kɔːl/

call

呼び出す
Meaning
to say something loudly; to telephone someone; to name
Example
Please call me when you arrive home.
家に着いたら、私に電話してください。
C2 noun /ˈfænˌtæzəm/

phantasm

幽霊
Meaning
an illusion, ghost, or figment of the imagination
Example
The child claimed to see a phantasm in the old house.
子供は古い家で幽霊を見たと主張した。
A2 adjective /ˈloʊɪst/

lowest

最も低い
Meaning
Of the smallest amount, extent, or intensity; minimal.
Example
The unemployment rate is at its lowest in 15 years.
失業率は15年ぶりの最低水準です。
C2 noun, verb /ˈbɛvəl/

bevel

斜面
Meaning
A sloping edge or surface; to cut or shape an edge at an angle.
Example
The carpenter beveled the edges of the table.
大工はテーブルの端を斜めに切りました。
C2 adjective /ˈpɛndjʊləs/

pendulous

幸せ
Meaning
hanging down loosely; drooping
Example
The pendulous fruit weighed down the branch.
賞を受け取った時、彼女は幸せを隠すことができませんでした。
B1 noun /ˈneɪbərˌhʊd/

neighborhood

近所
Meaning
a district or area around or near a particular place
Example
I grew up in a quiet neighborhood.
私は静かな近所で育ちました。
C2 noun /ˈhɪl.sə fɪʃ/

Hilsa fish

ヒルサ魚
Meaning
a popular fish species found in South Asian rivers, especially prized in Bengali cuisine
Example
Hilsa fish is considered a delicacy in Bengali culture.
ヒルサフィッシュはベンガル文化ではごちそうと見なされています。
B1 adjective ˈkɒmplɛks

complex

複雑
Meaning
Having many interrelated parts or factors; complicated.
Example
The relationship between poverty and education is complex.
貧困と教育の関係は複雑です。
B2 noun /ɪkˈskɜː.ʃən/

Excursion

遠足; 観光旅行
Meaning
a short journey or trip, especially one engaged in as a leisure activity
Example
The school organized an excursion to the science museum for all students.
学校はすべての学生のために科学博物館への遠足を組織しました。
B2 verb /ˈɔːθəraɪz/

authorize

承認する
Meaning
to give official permission or approval for something
Example
The manager will authorize the payment tomorrow.
マネージャーは明日支払いを承認します。
B2 noun steɪks

stakes

賭け
Meaning
A strong wooden or metal post with a point at one end, driven into the ground.
Example
The stakes were high for the success of the project.
プロジェクトの成功のために賭けが大きかった。
C1 noun /ˈdʊr.i.ən/

Durian

ドリアン
Meaning
a large spiky tropical fruit known for its strong smell and creamy custard-like flesh
Example
Durian is known as the king of fruits in Southeast Asia despite its pungent odor.
ドリアンは強い匂いにもかかわらず、東南アジアで果物の王として知られている。
C2 noun /ˈbiːlaɪn/

beeline

一直線
Meaning
a straight, direct route to a destination
Example
He made a beeline for the food table as soon as he entered the party.
彼はパーティーに入ったとたん、食べ物のテーブルに直行しました。
C2 adjective /ˌɪrɪˈlɪdʒəs/

irreligious

無宗教
Meaning
Indifferent or hostile to religion
Example
Some people in the community consider him irreligious because he never attends religious services.
コミュニティの中で、彼は宗教的なサービスに一度も参加しないため、無宗教だと考えられています。
C1 noun /kɑːɡ/

cog

車輪や歯車の歯
Meaning
A tooth on the rim of a wheel or gear; metaphorically, a minor but necessary part of a larger system.
Example
He felt like just a small cog in a big machine.
彼は大きな機械の中で小さな歯車のように感じていた。
C2 noun /bɛk/

beck

合図 / 小川
Meaning
a gesture of beckoning; a small stream or brook (chiefly Northern English)
Example
The servant came at his master's beck and call.
召使いは主人の合図に即座に来ました。
C1 verb /ɪˈroʊd/

erode

浸食
Meaning
to gradually wear away or destroy by natural forces such as water, wind, or chemical action
Example
The coastline has begun to erode due to constant waves.
海岸線は継続的な波のために浸食し始めた。
B2 adjective ˌprəʊˈæk.tɪv

proactive

積極的
Meaning
Taking action by causing change and not only reacting to change when it happens.
Example
Proactive strategies are needed to combat scarcity.
不足に対処するために積極的な戦略が必要です。
A2 adverb /əˈkrɒs/

Across

横切って
Meaning
from one side to the other side of something; in every part of a place
Example
The bridge stretches across the river.
橋は川を横切って広がっています。
C2 adjective /ˌʌnəˈʃʊəd/

unassured

自信のない
Meaning
Lacking confidence or certainty.
Example
She gave an unassured answer during the interview.
彼女は面接で自信のない答えをしました。
C2 adjective /ˈkeəwɔːn/

careworn

疲れ切って心配そうな
Meaning
Showing signs of worry, stress, or exhaustion.
Example
His careworn face revealed years of struggle.
彼の疲れ切った顔は長年の戦いを物語っていました。
C1 noun /ˈsteɪl.meɪt/

stalemate

行き詰まり
Meaning
A situation in which no progress can be made or no party can win.
Example
Negotiations ended in a stalemate.
交渉は行き詰まりました。
B2 noun, verb /rɪər/

rear

後ろ / 育てる
Meaning
the back part of something; to bring up or raise children or animals
Example
The mother cat reared her kittens in a quiet corner.
母猫は静かな隅で子猫たちを育てました。
C1 noun /ˈpɔɪ.nən.si/

poignancy

悲しみ, 痛み
Meaning
the quality of evoking a keen sense of sadness or regret; emotionally touching
Example
The poignancy of the farewell brought tears to everyone's eyes.
別れの痛ましさは、みんなの目に涙をもたらした。
B2 noun /ˈænθəm/

anthem

国歌
Meaning
A song that is identified with a particular group, movement, or nation, often expressing pride or unity.
Example
The national anthem was played before the football match.
サッカーの試合の前に国歌が演奏されました。
C1 adjective /ʌnˈtɛnəbl/

untenable

維持できない
Meaning
not able to be maintained or defended against attack or objection
Example
The politician resigned when his position became untenable.
政治家は彼の立場が維持できなくなったときに辞職しました。
B2 adverb /ɪkˈsplɪsɪtli/

explicitly

明確に
Meaning
in a clear and detailed manner, leaving no room for confusion or doubt
Example
The instructions were explicitly written to avoid any confusion.
指示は明確に書かれており、混乱を避けるためです。
C2 adjective /kəˈprɪʃəs/

capricious

気まぐれな
Meaning
given to sudden and unaccountable changes of mood or behavior
Example
The stock market can be capricious, shifting dramatically without warning.
株式市場は気まぐれで、予告なしに劇的に変動することがあります。
B2 adjective /ˈsoʊʃəbəl/

Sociable

社交的; 友好的; 外向的
Meaning
friendly and enjoys being with other people; outgoing
Example
She is very sociable and makes friends easily.
彼女はとても社交的で、簡単に友達を作ります。
C2 noun /ˈreɪləri/

raillery

友好的な冗談
Meaning
good-humored teasing or joking
Example
Their friendship was full of light-hearted raillery.
彼らの友情は軽い冗談で満ちていました。
A2 adverb /ˈɔːlmoʊst/

almost

ほとんど
Meaning
very nearly, but not exactly or completely
Example
He almost missed the train.
彼はほとんど電車を逃した。
C1 noun /rəˈviːn/

ravine

渓谷
Meaning
A deep, narrow valley with steep sides.
Example
The river carved a deep ravine through the mountains.
川は山々を通って深い渓谷を作り出した。
C1 verb, noun /ɡɔːrdʒ/

gorge

貪欲に食べる / 山間の狭い谷
Meaning
to eat greedily; a narrow valley between mountains or hills
Example
They gorged themselves on pizza after the hike.
ハイキング後に彼らはピザをむさぼり食べました。
C1 noun /əˈrɪəz/

arrears

未払い
Meaning
Money that is owed and should have been paid earlier.
Example
She was months in arrears with her electricity bill.
彼女は電気代の未払いが数ヶ月遅れていた。
B2 noun /vɪˈsɪn.ə.ti/

Vicinity

近隣; 周辺
Meaning
the area near or surrounding a particular place; neighborhood
Example
There are many shops in the vicinity of the school.
学校の近くにたくさんの店があります。
B2 verb /kənˈsiːd/

concede

Meaning
to admit something is true or valid, often reluctantly
Example
She finally conceded that she was wrong.
C2 verb /dɪˈspɒnd/

despond

落ち込む
Meaning
to lose confidence or hope; to become dejected
Example
After repeated failures, he began to despond.
繰り返しの失敗の後、彼は落ち込むようになった。
B2 noun /ˈkɑr.ɡoʊ ʃɪp/

Cargo ship

貨物船
Meaning
a ship or vessel that carries goods and materials from one port to another
Example
The cargo ship transported containers filled with electronics across the ocean.
貨物船は、電子機器で満載のコンテナを海を越えて運びました。
B2 adjective /rɪˈsɔːrsfəl/

resourceful

Meaning
Having the ability to find quick and clever ways to overcome difficulties.
Example
She is very resourceful when it comes to solving unexpected problems.
B2 adjective /ɪnˈtækt/

intact

完全
Meaning
Remaining whole, complete, and undamaged.
Example
Despite the storm, the old house remained intact.
嵐にもかかわらず、古い家は完全な状態を保っていました。
C2 adjective /əˈɡɒɡ/

agog

Meaning
Highly excited by eagerness, curiosity, or anticipation.
Example
The children were agog with excitement as they waited for the magician to appear.
B1 verb kleɪmz

claims

命を奪う
Meaning
To take someone's life, to cause death
Example
Workplace pollution claims thousands of lives annually.
職場の汚染は毎年何千もの命を奪います。
C1 verb /dɪsˈkʌlər/

discolor

色あせる
Meaning
to change color, especially in a way that spoils the original appearance
Example
The fabric began to discolor after being left in the sun.
生地は太陽の下に置かれてから色が変わり始めました。
A1 verb /wɜːrk/

work

働く
Meaning
to perform tasks or duties to earn money or achieve goals
Example
He works as a teacher at the local school.
彼は地元の学校で教師として働いています。
B2 noun /ˈmæd.nəs/

Madness

狂気; 精神錯乱;
Meaning
the state of being mentally ill, especially severely; extremely foolish behavior
Example
It would be madness to drive in this storm.
この嵐の中で運転するのは狂気だろう。
C2 noun /ˈdɒldrəmz/

doldrums

Meaning
A state of inactivity, stagnation, or low spirits; also a region near the equator with calm winds.
Example
After the project failed, the team was stuck in the doldrums for months.
C1 noun /truːs/

truce

休戦
Meaning
An agreement between enemies or opponents to stop fighting for a certain time.
Example
The two countries agreed to a truce after weeks of intense fighting.
二国は数週間にわたる激しい戦闘の後、休戦に合意しました。
C2 noun /ˈnjuː.trɪ.mənt/

nutriment

栄養
Meaning
Something that nourishes; sustenance or food.
Example
The soil provides nutriment to the plants.
土壌は植物に栄養を提供します。
B1 noun /ˈsʌb.stəns/

Substance

物質
Meaning
a particular kind of matter with uniform properties; the essential nature of something; material or content
Example
The scientist analyzed the unknown substance in the laboratory.
科学者は実験室で未知の物質を分析しました。