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A1 adjective /kwɪk/

Quick

速い
Meaning
fast; rapid; swift; happening in a short time
Example
She gave a quick answer to the teacher's question.
彼女は教師の質問に迅速に答えました。
C2 adjective /ˈnjuːbaɪl/

nubile

未婚女性
Meaning
of a young woman, sexually mature and suitable for marriage
Example
The village was celebrating the festival with its nubile maidens dancing.
村はその未婚女性たちが踊る祭りを祝っていました。
C2 noun /ˌhæŋ.ər ˈɒn/

hanger-on

おこぼれ
Meaning
a person who spends time with a powerful or famous person to gain benefits.
Example
The celebrity was always surrounded by hangers-on.
その有名人はいつもおこぼれの人々に囲まれていた。
C2 verb /əbˈtruːd/

obtrude

押し付ける
Meaning
to force oneself or one's ideas into a situation uninvited or inappropriately
Example
He didn’t want to obtrude into their private conversation.
彼は彼らのプライベートな会話に押し付けたくなかった。
C1 noun /ˈblɪs.tər/

Blister

水ぶくれ
Meaning
a small bubble on the skin filled with serum and caused by friction, burning, or other damage
Example
The new shoes gave her a painful blister on her heel.
新しい靴が彼女のかかとに痛い水ぶくれを作った。
B2 noun /rɪˈsɪp.i.ənt/

Recipient

受取人
Meaning
a person who receives something
Example
She was the recipient of the prestigious award.
彼女はその名誉ある賞の受取人でした。
B2 noun plɒt

plot

プロット
Meaning
The main story of a piece of writing, or the series of events that happen in it.
Example
The plot of A Tale of Two Cities is intense and gripping.
'二都物語'のプロットは、緊迫感と魅力に満ちています。
B2 noun ˈɛmpəθi

empathy

共感
Meaning
The ability to understand and share the feelings of another person.
Example
Empathy helps students connect with society.
共感は学生が社会とつながるのを助けます。
A2 adjective /waɪz/

wise

賢い
Meaning
having or showing experience, knowledge, and good judgment
Example
It was wise of him to save money for the future.
未来のためにお金を節約するのは賢明だった。
B2 noun /ˌnɒməˈneɪʃən/

nomination

ノミネーション
Meaning
The act of formally proposing someone for a role, position, or award.
Example
Her nomination for the award surprised everyone.
彼女の賞へのノミネーションは、皆を驚かせました。
B1 noun ˈsɛʃənz

sessions

セッション, 会議, 時間帯
Meaning
A meeting of an official body, especially a court of law, to conduct its business; a period devoted to a particular activity.
Example
The sessions lasted for three hours.
セッションは3時間続きました。
B2 adjective /ˈwɪk.ɪd/

Wicked

邪悪な; 悪党の;
Meaning
evil or morally wrong; intended to or capable of harming someone or something
Example
The wicked queen cast a spell on the princess.
邪悪な女王が王女に呪文をかけた。
C2 noun /ˈniːəˌfaɪt/

neophyte

初心者
Meaning
A beginner or novice in a subject, skill, or belief.
Example
As a neophyte in programming, she often asked for guidance from her mentor.
プログラミングの初心者として、彼女はよくメンターに指導を求めていた。
C1 noun /ɪˈnæməl/

enamel

エナメル
Meaning
a hard, glossy substance used as a protective or decorative coating; the hard outer layer of teeth
Example
The dentist explained that enamel protects the teeth from decay.
歯科医は、エナメルが歯を虫歯から守ることを説明しました。
C1 verb /rɪˈdiːm/

redeem

償う
Meaning
to compensate for faults or mistakes; to exchange something for value
Example
He managed to redeem his reputation after the scandal.
彼はスキャンダル後に自分の評判を回復しました。
B2 noun /ˌdʒen.əˈrɒs.ə.ti/

Generosity

寛大さ
Meaning
the quality of being kind and generous; willingness to give money, help, kindness freely
Example
The billionaire's generosity was evident in his numerous charitable donations to hospitals.
億万長者の寛大さは、彼の病院への多くの慈善寄付に明らかでした。
C2 noun /ˈhɒdʒ.pɒdʒ/

hodgepodge

寄せ集め
Meaning
A confusing mixture of different things; a jumble.
Example
The essay was a hodgepodge of unrelated ideas.
そのエッセイは関係のないアイデアの寄せ集めだった。
C1 noun /ˌsæl.jʊˈteɪ.ʃən/

Salutation

挨拶; 善意の表現
Meaning
a greeting; an expression of goodwill
Example
The letter began with a formal salutation.
その手紙は正式な挨拶で始まりました。
A2 noun /tɪp/

tip

アドバイス
Meaning
a small but useful piece of advice
Example
I received a tip on how to improve my presentation.
プレゼンテーションを改善する方法についてアドバイスをもらいました。
B2 noun /brest/

Breast

胸
Meaning
the front surface of a person's or animal's body between the neck and the stomach
Example
The baby fell asleep on her mother's breast.
赤ちゃんは母親の胸で寝ました。
C2 noun /ˈlɔɪtərər/

loiterer

目的もなく場所にいる人
Meaning
A person who lingers aimlessly in a place without purpose.
Example
The police questioned the loiterer outside the store.
警察は店の外でロイタラーに尋問をした。
C1 noun /ɪnˈfɜː.mə.ti/

Infirmity

虚弱; 病気; 衰弱
Meaning
physical or mental weakness; a disease or ailment; frailty
Example
Despite his advanced age and various infirmities, he remained mentally sharp and alert.
高齢で多くの病気を抱えていても、彼は精神的に鋭く、警戒心を持ち続けました。
C1 noun /ˈlɪmboʊ/

limbo

不確実性、保留状態
Meaning
A state of uncertainty or neglect; an intermediate or transitional state.
Example
The project was left in limbo after the funding was withdrawn.
資金が撤回された後、プロジェクトは不確実性に置かれました。
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。
B2 adjective /beər/

Bare

裸; 未覆われた; 空; 最小限
Meaning
naked; uncovered; empty; minimal
Example
The bare walls of the room needed some decoration.
部屋の裸の壁は何か飾りが必要だった。
C1 adjective /ˈdesələt/

Desolate

荒涼; 孤独; 不毛
Meaning
deserted; lonely; barren
Example
The abandoned village looked desolate and empty.
放棄された村は荒涼として空っぽに見えた。
A1 adverb /əˈɡen/

Again

もう一度
Meaning
once more; another time; in addition
Example
I need to read this book again to understand it better.
この本をもう一度読んで、もっとよく理解したい。
C2 adjective /ˈfɛkləs/

feckless

無能な, 責任感のない
Meaning
lacking initiative or strength of character; irresponsible
Example
His feckless attitude at work caused several missed deadlines.
彼の無能な態度が仕事でいくつかの期限を逃す原因となった。
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。
B1 noun /biːst/

Beast

獣
Meaning
a large or dangerous animal; a cruel or unpleasant person
Example
The lion is a fierce beast of the jungle.
ライオンはジャングルの猛獣です。
B2 verb /daɪˈdʒest/

digest

消化する
Meaning
to break down food in the body; to think about and understand
Example
It takes time to digest a heavy meal.
重い食事を消化するのには時間がかかります。
A1 noun /pɑːrk/

park

パーク
Meaning
a large public area of land with grass, trees, and paths, where people can walk or relax
Example
The children were playing in the park.
子供たちは公園で遊んでいました。
B1 noun /dɜːrt/

Dirt

汚れ; 土; 不潔な物質
Meaning
a substance that makes something unclean; earth or soil; unclean matter
Example
After playing in the garden, the children were covered in dirt from head to toe.
庭で遊んだ後、子供たちは頭から足まで汚れで覆われていました。
C2 noun /ˌpɜːrtərˈbeɪʃn/

perturbation

混乱
Meaning
A state of anxiety, disturbance, or disorder.
Example
The announcement caused a perturbation in the financial markets.
発表は金融市場に混乱を引き起こしました。
C2 noun /rɪˈvaɪlər/

reviler

侮辱者
Meaning
a person who criticizes or insults others abusively
Example
He was known as a reviler of all who opposed him.
彼は自分に反対する全ての人々を侮辱する者として知られていました。
B1 adverb /ˈɡlæd.li/

Gladly

喜んで、楽しんで
Meaning
willingly and with pleasure
Example
I would gladly help you with your homework.
私は喜んで宿題を手伝います。
B2 verb /dɪˈsiːv/

deceive

騙す
Meaning
To cause someone to believe something that is not true.
Example
He tried to deceive his friends with a fake story.
彼は嘘の話で友達を騙そうとした。
A2 noun /ˌkɒnvəˈseɪʃn/

conversation

会話
Meaning
an informal talk between two or more people, in which ideas, feelings, and thoughts are exchanged
Example
We had a long conversation about future plans.
私たちは未来の計画について長い会話をしました。
B2 verb /ɪnˈdɔːrs/

endorse

支持する
Meaning
To give approval or support to someone or something; to publicly recommend.
Example
The celebrity endorsed the new skincare product.
セレブリティは新しいスキンケア製品を支持しました。
C2 noun /ˈproʊtoʊˌplæzəm/

protoplasm

プロトプラズム
Meaning
The living substance inside a cell, including the cytoplasm and nucleus.
Example
Scientists observed the movement of protoplasm under the microscope.
科学者たちは顕微鏡でプロトプラズムの動きを観察しました。
C1 noun ɪˌməʊ.ʃəˈnæl.ɪ.ti

emotionality

感情性
Meaning
The quality of being driven by emotions rather than reason; emotional responsiveness.
Example
His emotionality often influenced his decisions.
彼の感情性はしばしば彼の決定に影響を与えた。
C1 verb /bɪˈɡrʌdʒ/

begrudge

誰かが何かを持っていることに対して妬む / 何かを嫌々与える
Meaning
to resent someone for having something; to give reluctantly
Example
She did not begrudge him his success.
彼女は彼の成功に嫉妬しなかった。
C2 verb /dʒɪr/

jeer

嘲笑う
Meaning
to laugh at someone or something in a cruel or mocking way
Example
The crowd began to jeer at the opposing team.
群衆は対戦チームを嘲笑し始めた。
C2 verb /ˈflʌməks/

flummox

困惑させる
Meaning
To confuse or bewilder someone completely.
Example
The complicated puzzle flummoxed the students.
その複雑なパズルは学生を困惑させた。
C2 adjective /ɡoʊʃ/

gauche

不器用
Meaning
lacking social grace, sensitivity, or tact; awkward
Example
His gauche remarks embarrassed everyone at the dinner party.
彼の不器用なコメントはディナーパーティーで皆を困らせた。
C2 adjective /pəˈrɛmptəri/

peremptory

強制的な
Meaning
Insisting on immediate attention or obedience, especially in a commanding way.
Example
The officer gave a peremptory order to evacuate the building.
その警官は建物を避難させるために強制的な命令を出した。
C1 noun ˈdɛf.ər.əns

deference

敬意
Meaning
Humble submission and respect.
Example
He showed deference to his elderly mentor.
彼は年上のメンターに敬意を示しました。
C2 adjective /dɪˈrɪzəbl/

derisible

嘲笑に値する
Meaning
deserving ridicule or mockery
Example
His excuse was so weak that it was plainly derisible.
彼の言い訳は非常に弱く、明らかに嘲笑に値した。
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。
C1 adjective /səkˈsɪŋkt/

succinct

簡潔
Meaning
Briefly and clearly expressed; characterized by clear, precise expression in few words.
Example
His speech was succinct and impactful.
彼のスピーチは簡潔で印象的でした。
B2 verb /ˈɡæmbəl/

gamble

ギャンブル
Meaning
to bet money on games of chance; to take a risky action
Example
He decided to gamble his savings on the stock market.
彼は株式市場に貯金を賭けることに決めました。
B2 noun /ɡler/

Glare

怒りのこもった凝視; 強くてまぶしい光
Meaning
a fierce or angry stare; a strong and dazzling light
Example
The teacher's stern glare silenced the noisy students immediately.
先生の厳しい視線は、すぐに騒がしい学生たちを静めました。
B2 verb /ɪmˈbɑːrkɪŋ/

embarking

旅行を始める
Meaning
Beginning a journey or enterprise.
Example
The group is embarking on a long journey.
グループは長い旅行を始めるところです。
C2 adjective /ˌsuːprəˈmʌndeɪn/

supramundane

超俗的
Meaning
beyond the physical or ordinary world; transcendent
Example
The monk spoke of supramundane peace beyond material life.
僧侶は物質的な生活を超えた超俗的な平和について話しました。
B2 noun /rɪˈlaɪ.əns/

Reliance

依存
Meaning
the state of depending on something or someone for support or help
Example
His reliance on technology is concerning.
技術への依存は懸念すべきことです。
B2 adjective /səˈraʊndɪŋ/

surrounding

周囲の
Meaning
located all around a particular place or thing; nearby
Example
The surrounding hills were covered in mist.
周囲の丘は霧に包まれていました。
B1 noun /ˈseɪ.vɪŋz/

savings

貯金
Meaning
Money that is saved, especially in a bank or official scheme for future use.
Example
Many people invest their savings in real estate.
多くの人々は不動産に貯金を投資します。
C1 adjective /əˈkʌlt/

occult

オカルト
Meaning
Relating to mysterious, supernatural, or magical powers and practices.
Example
She had always been fascinated by the occult and its hidden knowledge.
彼女は常にオカルトとその隠された知識に魅了されていた。
B1 noun /kənˈteɪ.nər/

container

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

Common Carp

コイ
Meaning
A large freshwater fish widely cultivated for food
Example
Common carp is an important fish in aquaculture.
コイは養殖業で重要な魚です。
A2 noun /ˈsen.tər/

center

センター
Meaning
A place or building designated for a particular activity or service.
Example
The first robotic surgery center was established in Rangpur.
最初のロボット手術センターはランプールに設立されました。
B2 adjective /ˈvɪɡ.ər.əs/

vigorous

活発な
Meaning
Characterized by high energy and vitality.
Example
Regular exercise keeps the body vigorous and healthy.
定期的な運動は体を活発に保ち、健康にします。
A1 adjective /kuːl/

cool

冷たい, 落ち着いた, 印象的
Meaning
moderately cold; calm and composed; fashionable or impressive
Example
She kept a cool head during the crisis.
彼女は危機の中で冷静を保った。
C1 noun /ˈaɪ.wɪt.nəs/

Eyewitness

目撃者
Meaning
a person who has seen something happen and can give evidence about it
Example
The police interviewed several eyewitnesses to the accident.
警察は事故の目撃者にインタビューを行いました。
C2 noun /ˈbeɪleɪ/

Bele

ベレ魚
Meaning
a type of freshwater fish found in South Asian rivers, known for its distinctive appearance
Example
The bele fish is commonly caught in the rivers of Bangladesh.
ベレ魚はバングラデシュの川でよく捕まえられる。
B2 noun /ʌnˈkaɪndnəs/

unkindness

不親切
Meaning
lack of kindness; cruel or inconsiderate behavior
Example
His unkindness hurt her feelings deeply.
彼の不親切は彼女の気持ちを深く傷つけた。
A1 verb /sɪŋ/

sing

歌う
Meaning
to make musical sounds with the voice
Example
She sings beautifully in the choir.
彼女は合唱団で美しく歌う
C1 noun /ˈaʊtˌɡroʊθ/

outgrowth

成長
Meaning
something that grows out of something else; a natural development or result
Example
The new policy was an outgrowth of years of debate.
新しい政策は数年の議論の成長でした。
B2 noun /blæk sneɪk/

Black Snake

黒い蛇
Meaning
a snake with dark or black colored skin
Example
The black snake slithered through the grass.
黒い蛇は草の中を這いました。
B2 noun /ˈraɪət/

Riot

暴動; 騒乱
Meaning
a violent disturbance of the peace by a crowd; an uncontrolled outburst
Example
The peaceful protest turned into a riot when violence broke out.
平和的な抗議は暴力が起こったときに暴動に変わった。
C1 adjective /ˌhɛtərəˈʤiːniəs/

heterogeneous

異種の
Meaning
consisting of different kinds or diverse elements
Example
The classroom was filled with a heterogeneous group of students.
教室は異種の学生のグループでいっぱいだった。
B2 noun /ˈprɛdətər/

predator

捕食者
Meaning
An animal that hunts and kills other animals for food.
Example
Lions are powerful predators in the savannah.
ライオンはサバンナで強力な捕食者です。
C1 noun /ɪˈpɪt.ə.mi/

epitome

特定の品質やタイプの完璧な例; 何かの最良の表現
Meaning
A perfect example of a particular quality or type; the best representation of something.
Example
She is the epitome of grace and kindness.
彼女は優雅さと親切さの典型です。
A2 noun/verb /meɪl/

mail

郵便 / 手紙
Meaning
Letters, packages, or email messages sent or delivered to someone.
Example
I received an important letter in the mail.
私は郵便で重要な手紙を受け取りました。
C1 noun /ˈpoʊlstər/

pollster

世論調査員
Meaning
a person or organization that conducts surveys to gauge public opinion
Example
The pollster predicted a close election outcome.
世論調査員は接戦の選挙結果を予測しました。
A1 noun ˈstjuː.dənt

student

学生
Meaning
A person who is studying at a school or university.
Example
Students participated actively in the protests.
学生たちは抗議活動に積極的に参加しました。
C2 adjective /səˈpʌlkrəl/

sepulchral

墓に関連する、陰気な
Meaning
Relating to a tomb or burial; gloomy, dismal.
Example
The abandoned house had a sepulchral silence about it.
放棄された家には墓のような静けさが漂っていた。
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。
B1 noun /baɪˈɒlədʒi/

biology

生物学
Meaning
The scientific study of living organisms.
Example
Biology explains how plants and animals function.
生物学は植物や動物がどのように機能するかを説明します。
B1 adjective əkˈsep.tɪd

accepted

受け入れられた
Meaning
Generally believed or recognized to be valid or correct.
Example
The accepted terms were discussed in detail.
受け入れられた条件は詳細に議論されました。
C1 noun /ɡriːn ˈkəʊ.kə.nʌt/

Green Coconut

緑のココナッツ
Meaning
a young coconut with green outer shell containing refreshing coconut water
Example
We drank fresh water from a green coconut on the beach.
私たちはビーチで緑のココナッツから新鮮な水を飲みました。
C1 adjective /ˈræmpənt/

rampant

蔓延する
Meaning
existing or spreading unchecked, often in an undesirable way
Example
Corruption was rampant in the city administration.
腐敗は市の行政で蔓延していた。
A2 noun /mæp/

map

地図
Meaning
a drawing that shows the features of an area of land or sea
Example
He studied the map before starting his journey.
彼は旅を始める前に地図を調べました。
C1 noun /ˈsɔːl.tɪd fɪʃ/

Salted fish

塩漬けの魚
Meaning
fish preserved with salt; dried and salted fish for storage
Example
Salted fish is a traditional way to preserve seafood.
塩漬けの魚はシーフードを保存する伝統的な方法です。
C1 noun /əˈkʌmpənɪmənt/

accompaniment

伴奏
Meaning
Something that goes together with or complements another thing, often music or food.
Example
The dish was served with a spicy sauce as an accompaniment.
その料理はスパイシーなソースを添えて提供されました。
C2 adjective /ˌɪrɪˈmiːdiəbl̩/

irremediable

修復不可能
Meaning
Impossible to cure, repair, or remedy.
Example
The damage to the ancient manuscript was irremediable.
古代の写本への損傷は修復不可能でした。
C1 adjective ˌæv.ɒ̃ˈɡɑːd

avant-garde

前衛的
Meaning
New and experimental; characterized by departure from or rejection of accepted standards.
Example
Avant-garde designs redefine the dining experience.
アヴァン・ガルドデザインはダイニング体験を再定義します。
B2 verb /ʌnˈtaɪ/

untie

解く
Meaning
to loosen or remove a knot or binding; to release something that is tied
Example
She untied the rope to free the boat.
彼女は船を自由にするためにロープを解いた。
C2 noun /ˈduːti/

Dhuti

ドゥティ
Meaning
a traditional Indian garment for men consisting of a piece of unstitched cloth worn around the waist and legs
Example
The elderly man wore a white dhuti during the religious ceremony.
年配の男性は宗教的な儀式で白いドゥティを着ていた。
C1 noun /pərˈvɜːrʒən/

perversion

歪曲
Meaning
The act of distorting or corrupting the original meaning, purpose, or state of something.
Example
The regime’s censorship was seen as a perversion of free speech.
政権の検閲は、自由な言論の歪曲と見なされていました。
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。
B2 noun ɪkˈspænʃən

expansion

拡張
Meaning
The action of becoming larger or more extensive; growth or development.
Example
Volunteering helps in the expansion of social networks.
ボランティア活動は、社会的ネットワークの拡張に役立ちます。
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。
B1 noun /ˈsʌp.ər/

Supper

晩ご飯
Meaning
an evening meal, typically a light or informal one
Example
We usually have supper around seven o'clock.
私たちは通常、七時ごろに晩ご飯を食べます。
B2 adjective /ʃɪər/

Sheer

完全な; 絶対的な; 透明な; 非常に急な
Meaning
complete; absolute; transparent; very steep
Example
It was sheer luck that we found the place.
それは私たちが場所を見つけた純粋な運だった。
C2 noun /ˈhɒthɛd/

hothead

短気な人
Meaning
a person who acts quickly and without thinking when angry
Example
He is such a hothead that he often starts arguments.
彼は短気な人で、よく議論を始める。
A2 preposition /tɪl/

till

まで
Meaning
up to the time of; until
Example
She waited till midnight for his call.
彼女は彼の電話を夜中まで待ちました。
A2 adjective /ˈtaɪərɪŋ/

tiring

疲れる
Meaning
causing someone to feel exhausted or in need of rest
Example
The long journey was extremely tiring.
長い旅は非常に疲れるものだった。
C1 verb /wɪðˈhoʊld/

withhold

差し控える
Meaning
to refuse to give or keep back something
Example
The company decided to withhold his bonus.
会社は彼のボーナスを差し控えることにした。
B2 noun ˈlaɪf ɪkˌspek.tən.si

life expectancy

平均寿命
Meaning
The average period that a person may expect to live; the length of time for which something is expected to last or to continue being effective.
Example
Life expectancy depends on healthcare quality.
平均寿命は医療の質に依存します。
C2 noun /ˈklɔɪstər/

cloister

回廊
Meaning
a covered walk in a convent, monastery, or cathedral, typically with a wall on one side and a colonnade open to a quadrangle on the other.
Example
The monks walked silently through the cloister.
修道士たちは静かに回廊を歩いていた。
B2 noun /ˈʃepərd/

Shepherd

羊飼い
Meaning
a person who tends and guards sheep
Example
The shepherd guided his flock to the green pasture.
羊飼いは自分の群れを緑の牧草地に導いた。
C2 verb /drɔːl/

drawl

だらだらと話す
Meaning
to speak in a slow, lazy way with prolonged vowel sounds
Example
He tends to drawl when he is tired.
彼は疲れているときに、だらだらと話す傾向があります。
A1 pronoun /ˈɛnɪθɪŋ/

anything

何でも
Meaning
any object, event, or matter; whatever thing
Example
You can ask me anything about the project.
プロジェクトについて何でも聞いてください。
C1 adjective ləˈθɑːrdʒɪk

lethargic

無気力
Meaning
Being inactive due to lack of physical or mental energy
Example
After a heavy meal, he felt lethargic and sleepy.
重い食事を取った後、彼は無気力で眠気を感じた。
B2 noun rɪˈtɛnʃən

retention

保持
Meaning
The continued possession, use, or control of something
Example
The retention of information is essential for academic success.
情報の保持は学問的成功のために重要です。
B2 adjective /ʌnˈsteɪbəl/

Unstable

不安定
Meaning
likely to change; not steady or secure; unsteady
Example
The unstable economy made people worried about their jobs.
不安定な経済は、人々を自分たちの仕事について心配させました。
B1 noun /ˈseɪ.lər/

Sailor

船員
Meaning
a person who works on a ship or boat; a member of a navy
Example
The experienced sailor navigated the ship through the storm.
経験豊富な船員が嵐を乗り越えて船を操縦した。
C1 noun /fruˈɪʃən/

fruition

実現
Meaning
The realization or fulfillment of a plan, project, or desire.
Example
Her dream of becoming a doctor finally came to fruition.
医者になるという彼女の夢はついに実現した。
C2 noun /ˈmædʒɪstrəsi/

magistracy

裁判所の事務所
Meaning
The office, authority, or district of a magistrate.
Example
He was proud to serve in the local magistracy for over a decade.
彼は10年以上にわたって地元の裁判所の事務所で働いていることを誇りに思っていました。
C1 verb /ləˈmɛnt/

lament

嘆く
Meaning
to express grief, sorrow, or regret about something
Example
She lamented the loss of her childhood home.
彼女は幼少期の家を失ったことを嘆いた。
B2 verb ˈeksɪkjuːt

execute

実行する
Meaning
To carry out or put into effect a plan, order, or course of action.
Example
NASA plans to execute the mission in three phases.
NASAは三段階でミッションを実行する計画です。
C1 noun /ˈsaɪnəs/

sinus

副鼻腔
Meaning
A cavity within a bone or tissue, especially those in the bones of the face connected with the nasal cavities.
Example
He suffered from a sinus infection that caused headaches.
彼は副鼻腔感染症に苦しんでおり、頭痛を引き起こしました。
C1 noun /ˈpɑːrtʃmənt/

parchment

羊皮紙
Meaning
a thin material made from animal skin, used in the past for writing
Example
The ancient manuscript was written on parchment.
古代の写本は羊皮紙に書かれていました。
C1 noun /ˌdɪp.ləˈmæt.ɪk ˈmaɪl.stəʊn/

diplomatic milestone

外交上のマイルストーン
Meaning
A significant achievement or important event in diplomatic relations.
Example
Hosting the summit was a diplomatic milestone.
サミットの開催は外交上のマイルストーンでした。
C2 noun /ˈkloʊðiər/

clothier

衣料品商
Meaning
a person or company that makes, sells, or deals in clothes.
Example
The town’s clothier displayed fine suits in his shop window.
町の衣料品商は店の窓に素晴らしいスーツを展示しました。
C1 verb /ˌdiː.kəmˈprɛs/

decompress

リラックスする
Meaning
To relax and recover from stress or pressure.
Example
Taking deep breaths helps to decompress after a stressful day.
深呼吸は、ストレスの多い一日後にリラックスするのに役立ちます。
C1 adjective /ˈprɛdəˌtɔri/

predatory

捕食者/搾取者
Meaning
Relating to animals that prey on others; exploiting or victimizing others for personal gain.
Example
The predatory bird swooped down on its prey.
捕食性の鳥は獲物に向かって急降下した。
B1 adjective /ɪˈsɛnʃəl/

essential

必要不可欠
Meaning
Absolutely necessary; extremely important.
Example
Water is essential for life.
水は生命にとって必要不可欠です。
B2 noun /ˈbɒtəni/

botany

植物学
Meaning
the scientific study of plants
Example
She is studying botany at the university.
彼女は大学で植物学を学んでいます。
C1 noun /ˈsɜːr.vɪ.tuːd/

Servitude

奴隷状態
Meaning
the state of being a slave or completely subject to someone more powerful
Example
Many people fought to escape the servitude imposed by the colonial system.
多くの人々が、植民地制度によって課せられた隷属から逃れようと戦った。