Bonafide
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 adjective /ˌboʊnəˈfaɪdi/

Bonafide

本物の; 正当な; 合法の
Meaning
genuine; authentic; legitimate
Example
She is a bonafide expert in her field.
彼女はその分野の本物の専門家です。
B2 noun /ˈfɔːrəm/

forum

フォーラム
Meaning
A place, meeting, or medium where ideas and views can be exchanged.
Example
The online forum allows people to discuss a wide range of topics.
オンラインフォーラムでは、人々がさまざまなトピックについて議論することができます。
B1 noun /kəmˈpænjən/

companion

仲間
Meaning
a person or animal you spend time with or travel with
Example
He was my companion during the long journey.
彼は長い旅の間、私の仲間でした。
C1 noun /ˈʌlsər/

ulcer

Meaning
a sore on the skin or a mucous membrane that does not heal easily
Example
The doctor prescribed medicine to treat the stomach ulcer.
C1 adjective /ˈstrɛnjuəs/

strenuous

厳しい
Meaning
Requiring or using great effort and energy.
Example
Climbing the mountain was a strenuous task.
山登りは厳しい仕事だった。
B2 noun /ˈkjuː.bɪ.kəl/

cubicle

仕切られたスペース
Meaning
A small partitioned-off area of a room, typically in an office.
Example
She works in a cubicle with three other colleagues.
彼女は他の3人の同僚と一緒に仕切られたスペースで働いています。
C1 verb /sərˈmaʊnt/

surmount

克服する
Meaning
to overcome a difficulty or obstacle
Example
He surmounted all the challenges to achieve his dream.
彼はすべての挑戦を乗り越えて夢を実現しました。
C1 adjective /ˌʌnəˈkaʊntəbl/

unaccountable

説明できない
Meaning
Not able to be explained or justified.
Example
She felt an unaccountable fear as she entered the dark room.
彼女は暗い部屋に入ると説明できない恐怖を感じた。
A2 adjective /ˈteɪ.sti/

Tasty

美味しい
Meaning
having a pleasant flavor; delicious
Example
The pizza was really tasty with fresh ingredients.
そのピザは新鮮な材料で本当に美味しかった。
A1 verb (past participle of 'bear'), adjective /bɔːrn/

born

生まれた
Meaning
To come into life; brought into existence.
Example
He was born in Dhaka in 1995.
彼は1995年にダッカで生まれた。
A1 noun /ˈfəʊtəʊ/

photo

写真
Meaning
a picture or image captured by a camera
Example
I took a photo of the sunset.
私は夕日の写真を撮った。
C1 adjective /ˌmʌltɪˈfæsɪtɪd/

multifaceted

多面的
Meaning
Having many different aspects or features
Example
The multifaceted approach to the problem resulted in innovative solutions.
問題に対する多面的なアプローチは革新的な解決策を生み出しました。
C1 noun /ˌmɪsdɪˈmiːnər/

misdemeanor

軽犯罪
Meaning
A minor wrongdoing or criminal offense that is less serious than a felony.
Example
He was fined for a misdemeanor involving public disturbance.
公共の秩序に関わる軽犯罪で罰金を科された。
C1 verb /dɪˈfaɪl/

defile

汚す
Meaning
to pollute, corrupt, or make dirty
Example
The river was defiled by industrial waste.
川は工業廃水によって汚された。
B2 adjective /ˈmjuːtʃuəl/

Mutual

相互
Meaning
shared by two or more parties; reciprocal
Example
They have a mutual respect for each other.
彼らはお互いに相互尊重を持っています。
C1 verb /ˈkætəˌlaɪz/

catalyze

触発する
Meaning
To cause or accelerate a reaction or change.
Example
The new law catalyzed reforms across the sector.
新しい法律は業界全体で改革を促進した。
C1 noun /ˌdɜːrməˈtɑːlədʒi/

dermatology

皮膚科学
Meaning
The branch of medicine concerned with the skin and its diseases.
Example
He studied dermatology at medical school.
彼は医学部で皮膚科学を学んだ。
C1 verb /ˈnuːtər/

neuter

去勢する
Meaning
To remove the reproductive organs of an animal; or having no gender.
Example
They decided to neuter their cat to prevent more kittens.
彼らは、もっと子猫が生まれないように、猫を去勢することに決めました。
C1 noun /ˈpoʊtənsi/

potency

効力
Meaning
The power or ability of something to affect or influence; strength or effectiveness.
Example
The potency of the new medicine amazed the doctors.
新薬の効力に医者たちは驚きました。
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。
A2 noun/verb /fɛns/

fence

フェンス
Meaning
a barrier, usually made of wood or wire, that surrounds an area; to enclose with a barrier
Example
They built a fence around the garden.
彼らは庭の周りにフェンスを作った。
C1 noun /ˌævɒ̃ˈɡɑːrd/

avantgarde

アバンギャルド
Meaning
people or works that are innovative, experimental, and ahead of their time
Example
The avantgarde of the 20th century reshaped modern art.
20世紀のアバンギャルドは現代アートを再形成した。
B2 noun /ˈdʒes.tʃər/

Gesture

ジェスチャー
Meaning
a movement of part of the body, especially a hand or the head, to express an idea or meaning
Example
She made a welcoming gesture with her hands to invite the guests inside.
彼女は手でゲストを招待するために歓迎のジェスチャーをしました。
B2 adjective/noun /staʊt/

stout

丈夫 / ぶ厚い
Meaning
Strong, thick, or heavily built; also a kind of dark beer
Example
The stout man lifted the heavy box with ease.
その丈夫な男性は重い箱を簡単に持ち上げました。
C2 verb /ˈsɛreɪt/

serrate

ギザギザの縁を作る
Meaning
To make a saw-toothed edge or notched margin.
Example
The craftsman serrated the knife blade for better cutting.
職人はより良い切断のためにナイフの刃をセレイトしました。
B2 adjective /hɪˈlɛəriəs/

hilarious

非常に面白い
Meaning
Extremely funny or amusing.
Example
The comedian told a hilarious story that had everyone laughing.
コメディアンは、みんなが笑ってしまうような非常に面白い話をしました。
C1 adjective /ˌɪnkɒmprɪˈhɛnsəbl/

incomprehensible

理解不能
Meaning
Impossible or very difficult to understand.
Example
The professor’s lecture was so fast it became incomprehensible.
教授の講義は速すぎて理解不能になった。
C2 noun /mɪˈtɒnɪmi/

metonymy

換喩
Meaning
A figure of speech in which one word or phrase is substituted with another closely related word or concept.
Example
In the phrase 'the crown will decide,' 'crown' is a metonymy for monarchy.
フレーズ「王冠が決定する」では、「王冠」が君主制の換喩です。
B2 noun /ˈsliːpər/

sleeper

眠っている人；予想外に成功するもの
Meaning
a person or thing that sleeps; something that unexpectedly succeeds
Example
The movie turned out to be a real sleeper hit.
映画は予想外のヒットになった。
C1 noun səˌfɪs.tɪˈkeɪ.ʃən

sophistication

高度な複雑さまたは洗練
Meaning
High level of complexity or refinement.
Example
The sophistication of modern AI technology is remarkable.
現代のAI技術の洗練さは驚くべきものです。
C2 noun /dɪsˈdʒʌŋkʃən/

disjunction

分裂
Meaning
A lack of connection between things; separation or disunity.
Example
There is a clear disjunction between theory and practice.
理論と実践の間には明確な分裂があります。
C2 noun /ˌdaɪ.jʊˈret.ɪk/

diuretic

利尿剤
Meaning
A substance that promotes the production of urine.
Example
Coffee has a mild diuretic effect.
コーヒーは軽い利尿作用があります。
B2 verb /ɪnˈkwaɪər/

inquire

尋ねる
Meaning
to ask; to investigate
Example
She inquired about the job opening.
彼女は仕事の募集について尋ねました。
B1 noun /soʊl/

Soul

魂
Meaning
the spiritual or immaterial essence of a human being or animal; a person's emotional or intellectual nature
Example
She poured her heart and soul into her artwork.
彼女は芸術作品に心と魂を込めました。
B2 verb /ˈtrɛmbəl/

tremble

震える
Meaning
To shake slightly, often because of fear, cold, or nervousness.
Example
She began to tremble with fear before speaking.
彼女は話す前に恐怖で震え始めました。
C1 noun /ˌnjʊə.roʊ.plæˈstɪs.ɪ.ti/

neuroplasticity

神経可塑性
Meaning
The brain's ability to reorganize itself by forming new neural connections throughout life.
Example
Neuroplasticity allows the brain to rewire itself after an injury.
ニューロプラスティシティは、脳が怪我の後で再配線できるようにします。
B1 noun /ˈdʒʌdʒ.mənt/

Judgement

判断; 決定
Meaning
the ability to make considered decisions or form sensible opinions; an official decision made by a judge or court
Example
The jury's judgement was based on careful consideration of all the facts.
陪審員の判断は、すべての事実を慎重に考慮した結果でした。
C1 verb /ˈɛm.ə.neɪt/

emanate

発する
Meaning
To come out or spread from a source.
Example
A sweet fragrance emanated from the garden.
甘い香りが庭から発せられました。
C2 verb /əˈpraɪz/

apprise

知らせる
Meaning
to inform or notify someone
Example
The manager will apprise the staff of the new policies.
マネージャーはスタッフに新しい方針について知らせます。
B2 adjective /rɪˈspek.tə.bəl/

Respectable

尊敬すべき
Meaning
worthy of respect; having good reputation; decent
Example
He comes from a respectable family in the community.
彼は地域社会の尊敬すべき家族から来ました。
C1 noun /ˈstaɪləs/

stylus

スタイラス
Meaning
a small tool used for writing, drawing, or touching screens
Example
She used a stylus to draw on her tablet.
彼女はタブレットで絵を描くためにスタイラスを使用しました。
C2 noun /əˈvɪdəti/

avidity

熱意
Meaning
extreme eagerness or enthusiasm
Example
He accepted the offer with avidity.
彼は熱意を持ってその提案を受け入れました。
B2 adjective /ˈklɪn.ɪ.kəl/

clinical

臨床的
Meaning
Related to the observation and treatment of patients rather than theoretical study.
Example
The doctor conducted a clinical examination.
医師は臨床検査を行った。
B1 noun /ɪɡˌzæm.ɪˈneɪ.ʃən/

examination

試験
Meaning
a formal test of knowledge or ability
Example
She is preparing for her final examination.
彼女は最終試験の準備をしています。
B2 verb /ɡreɪz/

graze

幸福
Meaning
To feed on grass; to touch or scrape lightly while passing.
Example
The cows graze in the meadow every morning.
彼女は賞を受け取ったとき、自分の幸福を隠せませんでした。
C1 noun əbˈzɔːrp.ʃən

absorption

吸収
Meaning
The process or action by which one thing absorbs or is absorbed by another.
Example
Plants help in the absorption of carbon dioxide.
植物は二酸化炭素の吸収を助けます。
C1 noun /rɪˈzʌmp.ʃən/

Resumption

再開
Meaning
the action of beginning something again after a pause or interruption
Example
The resumption of classes will be announced next week.
授業の再開は来週発表されます。
C2 adjective /ˈmɛdəlsəm/

meddlesome

干渉好きな
Meaning
fond of interfering in other people’s affairs
Example
She found her neighbor to be meddlesome and annoying.
彼女は隣人が干渉的で迷惑だと感じた。
B2 noun /ˌkɑːrboʊˈhaɪdreɪt/

carbohydrate

炭水化物
Meaning
a nutrient that provides energy, found in foods like rice, bread, and sugar
Example
Rice and potatoes are rich in carbohydrates.
ご飯とポテトは炭水化物が豊富です。
C2 noun /ˈsɪlədʒɪzəm/

syllogism

三段論法
Meaning
A form of reasoning in which a conclusion is drawn from two given or assumed premises.
Example
The philosopher explained the concept of syllogism using simple examples.
哲学者は簡単な例を使って三段論法の概念を説明しました。
C2 noun /ˌbaɪ.oʊ.rɪˌmiː.diˈeɪ.ʃən/

bioremediation

バイオレメディエーション
Meaning
The use of living organisms to neutralize or remove environmental contaminants.
Example
Bioremediation helps remove toxins from polluted soil.
バイオレメディエーションは汚染された土壌から毒素を取り除くのに役立ちます。
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 /ˈsaɪkiː/

psyche

魂 / 心
Meaning
the human soul, mind, or spirit
Example
The novel explores the depths of the human psyche.
その小説は人間の精神の深層を探求します。
B1 noun /tiːn/

teen

ティーンエイジャー
Meaning
a person aged between 13 and 19 years.
Example
He's a teenager who loves sports.
彼はスポーツが好きなティーンエイジャーです。
B2 adjective /ɪˈrɪˌspɑn.sə.bəl/

Irresponsible

無責任
Meaning
lacking a sense of responsibility; careless
Example
It was irresponsible of him to leave without telling anyone.
彼が誰にも言わずに去ったのは無責任だった。
B2 adjective /ɪmˈpɜːrfɪkt/

imperfect

不完全
Meaning
Not perfect; having faults or flaws.
Example
The painting was beautiful despite being imperfect.
その絵は美しかったが、完璧ではなかった。
B2 noun /sfɪər/

sphere

球体
Meaning
a round, three-dimensional shape that is perfectly symmetrical around its center; an area of activity or knowledge
Example
The Earth is almost a perfect sphere.
地球はほぼ完璧な球体です。
C1 noun /ˌɪnɪkˈspɪəriəns/

inexperience

未経験
Meaning
Lack of knowledge or skill in a particular activity or field.
Example
His inexperience in handling negotiations was evident.
交渉における彼の未経験は明らかでした。
C2 adjective /ˈɪrˌsplɪtɪŋ/

earsplitting

耳をつんざくような
Meaning
extremely loud or piercing sound
Example
The earsplitting noise of the fire alarm startled everyone.
火災警報の耳をつんざくような音がみんなを驚かせた。
C1 adjective prɪˈkeə.ri.əs

precarious

危険な
Meaning
Not securely held or in position; dependent on chance; uncertain.
Example
His financial situation is precarious.
彼の財政状況は危険な状態です。
C1 verb /riːˈfɜːrbɪʃ/

refurbish

改装する
Meaning
To renovate or redecorate something, especially a building.
Example
The company decided to refurbish its old office.
その会社は古いオフィスを改装することを決定しました。
C1 adjective /dɪˈspɪrɪtɪd/

dispirited

落胆した
Meaning
Having lost enthusiasm, hope, or confidence; dejected.
Example
After losing the match, the team looked dispirited.
試合に負けた後、チームは落胆して見えた。
B1 adjective /dɪsˈɡʌstɪŋ/

disgusting

嫌な
Meaning
extremely unpleasant or offensive; causing strong dislike or revulsion
Example
The smell coming from the trash can was absolutely disgusting.
ゴミ箱からの臭いは完全に嫌なものでした。
C1 noun /ˈmeɪ.trɪks/

matrix

マトリックス, 構造
Meaning
An environment or structure in which something develops; also a mathematical array of numbers.
Example
The cultural matrix shaped his worldview.
文化的なマトリックスは彼の世界観を形成した。
C2 adjective /ˈslɪpʃɒd/

slipshod

おおざっぱな, いい加減な
Meaning
done in a careless, sloppy, or untidy way
Example
The project failed due to slipshod planning.
計画が雑だったため、プロジェクトは失敗した。
B2 noun, verb /ˈplɑːstər/

plaster

プラスター, 修理する
Meaning
a soft mixture applied to walls or used to cover wounds; or to cover or coat with plaster
Example
The workers plastered the walls to make them smooth.
作業員たちは壁を滑らかにするためにプラスターを塗った。
C2 noun /ˈfɔːrˌpiːk/

forepeak

船首の部屋
Meaning
The compartment in the forward part of a ship, often used for storage.
Example
The sailors stored extra ropes in the forepeak.
船員たちは余分なロープを船首の部屋に収納しました。
B2 adjective /ˌædvənˈteɪdʒəs/

Advantageous

有利な; 便利な; 利益を生む
Meaning
beneficial; favorable; profitable
Example
This position offers advantageous opportunities for career growth.
このポジションはキャリアの成長のための有利な機会を提供します。
A2 noun ˈbræntʃɪz

Branches

枝
Meaning
A part of a tree that grows out from the trunk or from a bough.
Example
Family tree branches show the relationship between family members.
家系図の枝は家族のメンバー間の関係を示します。
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。
B2 adjective /sɔːr/

sore

痛い
Meaning
painful or aching, usually in a specific part of the body
Example
After the long run, my legs were sore.
長いランニングの後、私の足は痛かった。
A2 noun /ˈnek.ləs/

Necklace

ネックレス
Meaning
a piece of jewelry that is worn around the neck
Example
She wore a beautiful diamond necklace to the party.
彼女はパーティーで美しいダイヤモンドのネックレスをしていました。
C2 adjective /məˈlɪfluəs/

mellifluous

甘美な
Meaning
Sweet or musical; pleasant to hear.
Example
The singer’s mellifluous voice enchanted the audience.
歌手の甘美な声が観客を魅了した。
C1 adjective /ˈpɜːrmiəbl̩/

permeable

透過性のある
Meaning
allowing liquids or gases to pass through
Example
The soil in this area is very permeable to water.
この地域の土壌は水に非常に透過性があります。
C2 adjective /ˌɪrɪˈdjuːsəbl/

irreducible

不可約
Meaning
impossible to reduce or simplify further
Example
The fraction 3/7 is irreducible.
分数 3/7 は不可約です。
C2 verb /leɪv/

lave

洗う
Meaning
To wash or bathe.
Example
She laved her face with cool water.
彼女は冷たい水で顔を洗った。
B1 noun ˌɪndɪˈpendəns

independence

独立
Meaning
The fact or state of being independent; freedom from outside control; not being subject to another's authority.
Example
Independence inspired the movement.
独立は運動を刺激した。
C2 noun /ˌkɒl.əˈneɪd/

colonnade

コロネード
Meaning
A row of evenly spaced columns supporting a roof, often in classical architecture.
Example
The visitors admired the grand colonnade at the entrance of the temple.
訪問者は寺院の入り口で壮大なコロネードに感嘆していました。
B1 verb /ɪmˈbærəs/

embarrass

Meaning
to cause someone to feel awkward, self-conscious, or ashamed
Example
His rude comment really embarrassed her in front of everyone.
B2 noun /siːdʒ/

siege

包囲
Meaning
A military operation in which a place is surrounded to force its surrender.
Example
The castle fell after a long siege.
城は長い包囲戦の後に落ちました。
C2 verb /ˈkænənaɪz/

canonize

Meaning
To officially declare a dead person a saint; to regard as great or significant.
Example
The church canonized the martyr after years of investigation.
B2 noun /sɪnˈserɪti/

Sincerity

誠実さ
Meaning
the quality of being free from pretense or deceit; honesty
Example
His sincerity in apologizing was evident to everyone.
彼の謝罪の真摯さは、すべての人に明らかだった。
C1 adjective /ʌnˈsiːmli/

unseemly

不適切な
Meaning
Not proper or appropriate in behavior or appearance; unbecoming.
Example
His unseemly remarks embarrassed everyone at the dinner table.
彼の不適切な発言はディナーテーブルで皆を困らせました。
B2 noun /ɔːrˈɡæn.ɪk ˈfɑːr.mɪŋ/

organic farming

有機農業
Meaning
Farming method that avoids synthetic chemicals and fertilizers, using natural methods instead.
Example
Organic farming improves soil health and reduces pollution.
オーガニックファーミングは土壌の健康を改善し、汚染を減らします。
A1 noun /fʊt/

Foot

足
Meaning
the lower extremity of the leg that is in direct contact with the ground in standing or walking
Example
She hurt her foot while running.
彼女は走っている間に足を怪我しました。
C1 adjective ˈskruː.pjʊ.ləs

scrupulous

慎重
Meaning
Diligent, thorough, and extremely attentive to details; having moral integrity; acting in strict regard for what is considered right or proper.
Example
He is known for being scrupulous in his work.
彼は仕事において慎重であることで知られています。
C1 noun /ˈves.tɪdʒ/

Vestige

痕跡
Meaning
a trace or remnant of something that is disappearing or no longer exists
Example
No vestige of the ancient city remains.
古代の都市の痕跡は残っていません。
C2 noun /ˈænɪ siːd/

Ani seed

アニス
Meaning
Small aromatic seeds used as a spice and for medicinal purposes, with a sweet licorice-like flavor
Example
Anise seeds are often used in traditional desserts and teas.
アニスの種は伝統的なデザートやお茶にしばしば使われます。
B2 adjective /ˈæbsəluːt/

absolute

絶対
Meaning
total, complete, or without restriction
Example
The dictator had absolute power over the nation.
独裁者は国に対して絶対的な権力を持っていた。
C1 verb /ˌrekəˈlekt/

recollect

思い出す
Meaning
to remember something; to recall from memory
Example
I can't recollect where I put my keys.
鍵をどこに置いたか思い出せません。
C2 adjective /daɪˈɒsɪsən/

diocesan

教区に関する
Meaning
relating to a diocese or the district under the supervision of a bishop in the Christian Church
Example
The diocesan council met to discuss church affairs.
教区評議会は教会の問題を話し合うために集まりました。
B1 verb /dæm/

damn

Meaning
to condemn or criticize strongly; used as an expletive to express anger or emphasis
Example
He damned the unfair system in his speech.
C2 noun /fəˈlɪsɪti/

felicity

幸福
Meaning
intense happiness; the ability to find appropriate expression for one's thoughts
Example
She was known for her felicity in conversation and cheerful nature.
彼女は会話の中での幸福と明るい性格で知られていました。
C2 noun /ˈdɛsɪkənt/

desiccant

乾燥剤
Meaning
a substance that absorbs moisture and keeps things dry
Example
Silica gel packets are commonly used as a desiccant in packaging.
シリカゲルのパケットは、パッケージングで乾燥剤として一般的に使用されます。
C1 adjective /ˈnæk.ərd/

Knackered

非常に疲れた; くたびれた
Meaning
extremely tired; exhausted
Example
I'm absolutely knackered after working all day.
私は一日中働いた後、完全に疲れ果てました。
C1 noun /rɛnˈdɪʃən/

rendition

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

evasive

回避的な, 狡猾な, 曖昧な
Meaning
Tending to avoid commitment or self-revelation, especially by responding only indirectly.
Example
He gave an evasive answer to avoid trouble.
彼は問題を避けるために回避的な答えをしました。
B1 verb /dɪˈlɪvər/

deliver

届ける
Meaning
to bring or hand over something to the intended recipient
Example
The courier will deliver the package tomorrow.
宅配便は明日荷物を届けます。
B2 verb /ˌʌndərˈteɪk/

undertake

引き受ける
Meaning
to commit to and begin a task or project; to take on responsibility
Example
She decided to undertake a challenging project.
彼女は挑戦的なプロジェクトを始めることに決めました。
B2 verb /stroʊk/

stroke

なでる
Meaning
to move your hand gently over something; to hit or touch something gently
Example
She stroked the cat's fur gently.
彼女は猫の毛を優しくなでました。
C1 adjective /sɪər/

Sear

枯れた; 焼けた; 乾燥した
Meaning
withered; dried up; burned or scorched
Example
The sear leaves fell from the trees in autumn.
秋に枯れた葉が木から落ちました。
C2 noun /ˈbʌskɪn/

buskin

厚底ブーツ
Meaning
A type of thick-soled boot that reaches halfway to the knee; also associated with tragic drama in ancient times.
Example
The actor wore a buskin as part of his classical costume.
俳優は彼のクラシックな衣装の一部としてバスキンを履いていました。
B2 noun /ɪmˈpɒlɪtnəs/

impoliteness

無礼さ
Meaning
lack of good manners or courtesy; rude behavior
Example
His impoliteness towards the guests shocked everyone.
彼の客に対する無礼さは皆を驚かせた。
C1 noun /ˈfɔːreɪ/

foray

突撃 / 初めての試み
Meaning
A sudden short attack or attempt, especially into new activity or territory.
Example
The company made its first foray into the international market.
その会社は国際市場への初めての進出を果たした。
C2 noun /ˌmɑːrtəˈnɛt/

martinet

厳格な規律の指導者
Meaning
A strict disciplinarian who demands rigid adherence to rules.
Example
The new manager was such a martinet that even minor infractions were punished.
新しいマネージャーはマルティネットのようで、些細な違反も処罰されました。
B2 adjective /prəˈvɪʒənəl/

Provisional

仮の
Meaning
arranged for the present; temporary; subject to later confirmation
Example
The provisional agreement will be reviewed next month.
仮の合意は来月レビューされます。
B2 adjective /ˈvɪʃ.əs/

Vicious

悪質な; 残酷な; 野生の
Meaning
deliberately cruel or violent; having a savage nature
Example
The vicious dog attacked anyone who came near its territory.
その悪質な犬は、自分の領土に近づく者すべてに攻撃を仕掛けた。
C1 adjective /ˈskɛtʃi/

sketchy

不完全
Meaning
not thorough or detailed; suspicious or unsafe
Example
The details of the project were still sketchy.
プロジェクトの詳細はまだ不完全でした。
C1 verb /ˈræn.də.maɪz/

randomize

ランダム化する
Meaning
To make something happen in a random order or manner.
Example
The software can randomize the order of questions.
ソフトウェアは質問の順番をランダマイズできます。
B2 noun ˌɪn.əˈveɪ.ʃən

innovation

革新
Meaning
The action or process of innovating; a new method, idea, product, etc.
Example
Innovation drives solutions to global challenges.
革新は世界的な課題への解決策を促進します。
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。
C1 noun/verb /skɜːrdʒ/

scourge

Meaning
A source of great pain or punishment; to whip or inflict suffering on someone.
Example
Disease and poverty remain a scourge in many regions.
C1 verb /bɪˈlɪtl/

belittle

軽視する
Meaning
To make someone or something seem less important or less valuable.
Example
He often belittled his coworkers to feel superior.
彼はしばしば自分を優位に感じるために同僚を軽視していた。
C1 noun ɪˌlæˈstɪs.ə.ti

elasticity

弾力性
Meaning
The responsiveness of demand or supply to changes in price.
Example
The elasticity of demand for luxury goods is high.
贅沢品の需要の弾力性は高い。
C1 noun /kwɔːrˈtɛt/

quartet

カルテット
Meaning
A group of four people playing music or singing together.
Example
The string quartet performed beautifully at the concert.
弦楽四重奏団はコンサートで素晴らしい演奏をしました。
C1 adjective /prəˈlɪf.ɪk/

prolific

多作な
Meaning
Present in large numbers or quantities; plentiful; producing many works, results, or offspring.
Example
The author is prolific, having written over 30 books.
その著者は非常に多作で、30冊以上の本を執筆しています。
A2 noun /ˈdɒŋ.ki/

Donkey

ロバ
Meaning
a domesticated animal related to the horse, with long ears and a braying call
Example
The donkey carried heavy bags up the mountain.
そのロバは重い袋を山へ運びました。
B1 noun /ˈspiːʃiːz/

Species

種; タイプ
Meaning
a group of living organisms that can reproduce with each other; a type or kind
Example
The Amazon rainforest is home to thousands of animal species.
アマゾンの熱帯雨林は何千もの動物種の家です。
B1 adjective /ɪnˈkrɛdəbl/

incredible

信じられない
Meaning
so extraordinary that it is hard to believe; amazing
Example
The view from the mountain was incredible.
山からの景色は信じられなかった。
A2 adverb /ˈpɒs.ə.bli/

Possibly

おそらく; もしかしたら;
Meaning
perhaps; maybe; it may be the case that
Example
It will possibly rain tomorrow.
明日おそらく雨が降るかもしれません。
C2 noun /ˈpɔːrtɛnt/

portent

前兆
Meaning
A sign or warning that something, especially something momentous or calamitous, is likely to happen.
Example
The sudden drop in stock prices was seen as a portent of economic trouble.
株価の急落は、経済的な問題の前兆として見なされました。