concerto
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C1 noun /kənˈtʃɛrtoʊ/

concerto

音楽作品
Meaning
a musical composition for one or more solo instruments accompanied by an orchestra
Example
She played a Mozart concerto with the orchestra.
彼女はオーケストラと共にモーツァルトのコンチェルトを演奏しました。
B1 verb /ˈsætɪsfaɪ/

satisfy

満たす
Meaning
to fulfill the desires, expectations, or needs of someone; to make content
Example
The delicious meal satisfied our hunger completely.
美味しい食事が私たちの空腹を完全に満たしました。
B2 noun/verb /bʌst/

bust

Meaning
As a noun: A sculpture of a person's head, shoulders, and chest; As a verb: To break, smash, or arrest.
Example
The police busted the gang last night.
C1 noun /ˈvaɪ.pər/

Viper

マムシ
Meaning
a venomous snake with large hinged fangs that typically has a thick body and gives birth to live young
Example
The viper coiled up when it sensed danger.
ヴァイパーは危険を感じると巻きつきます。
A1 noun /ˈnʌmbər/

number

番号
Meaning
a mathematical value used to count, measure, or label
Example
She gave me her phone number.
彼女は私に自分の電話番号を教えてくれました。
A2 noun /nɔɪz/

Noise

騒音
Meaning
a sound, especially one that is loud or unpleasant
Example
The noise from the construction site was very disturbing.
建設現場からの騒音は非常に迷惑でした。
A2 noun /ˈaɪtəm/

item

アイテム
Meaning
A single thing, object, or unit, often part of a list or collection.
Example
Each item on the list must be checked carefully.
リストの各アイテムは慎重にチェックする必要があります。
C1 verb /ˈlɛdʒɪsˌleɪt/

legislate

立法する
Meaning
to make or enact laws
Example
The government plans to legislate new safety standards.
政府は新しい安全基準を制定する計画です。
C1 verb /ɪmˈbɛd/

imbed

埋め込む
Meaning
To fix firmly or deeply in a surrounding mass.
Example
The journalist imbedded himself with the troops to report firsthand.
ジャーナリストは部隊に埋め込まれて、最前線から報告を行った。
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。
A1 noun /ˈbɜːrθ.deɪ/

birthday

Meaning
the anniversary of the day on which a person was born, typically celebrated annually
Example
We are planning a surprise birthday party for her.
C1 noun ˌhaɪ.drəˈlɒdʒ.ɪ.kəl ˈsaɪ.kəl

hydrological cycle

水文循環
Meaning
The cycle of processes by which water circulates between the earth's oceans, atmosphere, and land.
Example
The hydrological cycle ensures continuous water movement in nature.
水文循環は自然界での水の連続的な動きを保証します。
C1 noun /ˈeɪ.peks/

apex

頂点, apex
Meaning
The highest point or peak of something; the top or summit.
Example
He reached the apex of his career.
彼は自分のキャリアの頂点に達した。
C2 noun /əˈkʌmpənɪst/

accompanist

伴奏者
Meaning
A person who plays a musical instrument to support a singer or another musician.
Example
The pianist served as the accompanist for the singer during the concert.
コンサート中にピアニストは歌手の伴奏者として活躍しました。
C1 noun ˈlaɪv.li.hʊd

livelihood

生計
Meaning
A means of securing the necessities of life; a way of making a living.
Example
Fishing is the primary livelihood of coastal communities.
漁業は沿岸地域の主な生計手段です。
B2 verb /nɪˈɡlekt/

neglect

無視する
Meaning
to fail to care for or give attention to something
Example
Don't neglect your health while studying.
勉強中に健康を無視しないでください。
C1 noun /ˈɔr.i.ənt/

Orient

東洋、特に東アジアの国々
Meaning
the East, especially countries of eastern Asia; to determine one's position or direction
Example
Many spices come from the Orient.
多くの香辛料がオリエントから来ています。
C2 adjective /kəˈdævərəs/

cadaverous

死体のような
Meaning
Resembling a corpse; very pale, thin, or bony.
Example
His cadaverous appearance shocked everyone at the party.
彼の死体のような外見はパーティーで皆を驚かせました。
B1 noun /ˈtɪʃ.uː/

tissue

ティッシュ
Meaning
a piece of soft absorbent paper or fabric
Example
She used a tissue to wipe her nose.
彼女はティッシュで鼻を拭きました。
B2 noun /ˈdeɪ.tə briːtʃ/

data breach

データ漏洩
Meaning
Unauthorized disclosure of sensitive information through security violation
Example
A data breach exposed millions of users' passwords.
データ漏洩により何百万人ものユーザーのパスワードが公開されました。
C1 adjective /ˈkɜːrsəri/

cursory

ざっとした
Meaning
Hasty and therefore not thorough or detailed.
Example
He gave the report only a cursory glance before the meeting.
彼は会議の前に報告書をざっと見た。
C1 noun /oʊˈeɪ.sɪs/

Oasis

オアシス
Meaning
a fertile spot in a desert where water is found; a pleasant refuge
Example
The travelers found an oasis after days in the desert.
旅行者たちは砂漠で数日後にオアシスを見つけました。
B2 noun /ˈhænd.fʊl/

Handful

ひとつかみ; 小さな数量や数; コントロールが難しいもの
Meaning
a quantity that fills the hand; a small number or amount; something difficult to control
Example
She grabbed a handful of nuts from the bowl before heading out for her walk.
彼女は歩きに出かける前に、ボウルからひとつかみのナッツをつかみました。
A2 noun /ˈʃaʊər/

shower

Meaning
a brief fall of rain or snow or a device for taking a bath or washing oneself
Example
After the workout, I took a quick shower to refresh myself.
C1 verb /ˈtræmpəl/

trample

Meaning
to tread heavily on something and cause damage or injury
Example
The crowd trampled the flowers in the park.
B2 verb /dɪˈvoʊt/

devote

捧げる
Meaning
to give time, effort, or resources to something
Example
She devotes much of her time to helping the poor.
彼女は貧しい人々を助けるために多くの時間を捧げています。
B2 noun /ɡʊdz treɪn/

Goods train

貨物列車
Meaning
a train designed to transport cargo and freight rather than passengers
Example
The long goods train carried containers from the port to the inland depot.
長い貨物列車が港から内陸の倉庫までコンテナを運んだ。
C1 noun /ˈkiːpˌseɪk/

keepsake

記念品
Meaning
An object kept as a reminder of a person, place, or event.
Example
She gave me a small locket as a keepsake of our friendship.
彼女は私たちの友情の記念として小さなロケットをくれました。
C2 noun /ˈdʒɪŋɡoʊˌɪzəm/

jingoism

過激な愛国主義
Meaning
extreme patriotism expressed in aggressive foreign policy
Example
The politician's speech was filled with jingoism.
その政治家の演説はジンゴイズムに満ちていました。
C1 noun /ˈfaɪərɑːm/

firearm

火器
Meaning
a weapon capable of firing a projectile using gunpowder or other propellant
Example
The police found a hidden firearm during the investigation.
警察は調査中に隠された銃器を発見しました。
B2 verb /ɪˈvæljueɪt/

evaluate

評価する
Meaning
To assess or judge the value, quality, or significance of something.
Example
The teacher will evaluate the students’ projects tomorrow.
教師は明日学生のプロジェクトを評価します。
C2 verb /ˈdʒɛsteɪt/

gestate

妊娠
Meaning
to carry and develop in the womb during pregnancy; to develop an idea over a period of time
Example
The mother whale gestates her calf for over a year.
母クジラは1年以上にわたって子クジラを妊娠し、発展させます。
C1 adjective /ˈɪndɪɡoʊ bluː/

Indigo-blue

インディゴブルー
Meaning
a deep blue color with a purplish tinge
Example
The indigo-blue sky looked magnificent at twilight.
インディゴブルーの空は夕暮れ時に壮大に見えた。
C1 verb /ˌoʊvərˈpaʊər/

overpower

圧倒する
Meaning
To defeat or gain control over someone or something by using greater strength or force.
Example
The soldiers managed to overpower the enemy forces.
兵士たちは敵軍を圧倒することができました。
C1 noun /ˈtrɪnɪti/

trinity

三位一体
Meaning
a group of three closely related things; in Christianity, the Father, the Son, and the Holy Spirit
Example
The museum’s exhibit focused on a trinity of themes: memory, identity, and power.
博物館の展示は、三つのテーマの三位一体に焦点を当てていました：記憶、アイデンティティ、そして力。
B2 adjective, noun /ˈkɑːmənpleɪs/

commonplace

ありふれた
Meaning
ordinary or unremarkable; something that is usual or commonly found
Example
Smartphones have become commonplace in modern life.
スマートフォンは現代生活でありふれたものになった。
C1 adjective /ˈmɜː.sɪ.fəl/

Merciful

慈悲深い; 同情的な
Meaning
showing compassion or forgiveness; kind and forgiving
Example
The merciful judge gave him a lighter sentence.
慈悲深い裁判官は彼に軽い判決を与えました。
B2 noun /ˈrɪə.lɪ.zəm/

realism

リアリズム
Meaning
The quality of representing things as they are; a practical or factual view.
Example
Her paintings are admired for their realism.
彼女の絵画はそのリアリズムで賞賛されています。
C1 noun ˌlaɪ.əˈbɪl.ə.ti

liability

責任
Meaning
The state of being responsible for something, especially by law; a debt or financial obligation.
Example
The company's liabilities exceeded its assets.
会社の負債は資産を上回っていました。
C1 verb /ˈkɒnsɔːrt/

consort

Meaning
To associate with someone, typically with disapproval; also, a spouse of a reigning monarch.
Example
He was criticized for consorting with criminals.
C1 noun ˌæp.əˈreɪ.təs

apparatus

装置
Meaning
The technical equipment or machinery needed for a particular activity or purpose.
Example
The apparatus was designed to be eco-friendly.
その装置は環境に優しいように設計されました。
A1 noun /piːˈɛm/

pm

Meaning
abbreviation for post meridiem; after midday
Example
The meeting is scheduled at 3 pm.
C1 adjective /nɪˈɡoʊ.ʃi.ə.bəl/

negotiable

交渉可能
Meaning
Open to discussion or modification; capable of being bargained for.
Example
The salary offered is negotiable.
提供された給与は交渉可能です。
B2 verb /kəˈlæps/

collapse

崩壊する
Meaning
to fall down or inward suddenly; to break down completely
Example
The old building collapsed after the earthquake.
古い建物は地震後に崩壊しました。
A2 adverb /ˈæktʃuəli/

actually

実際に
Meaning
used to emphasize that something is true, especially when surprising
Example
She actually completed the project ahead of schedule.
彼女は実際に予定より早くプロジェクトを完了させた。
C2 noun /ˈvɜːrbiɪdʒ/

verbiage

冗長な言葉
Meaning
Excessive use of words, often with little content or meaning; wordiness.
Example
The contract was filled with unnecessary legal verbiage.
契約は不要な法的冗長な言葉で満たされていた。
C1 verb /pərˈtɜːrb/

perturb

動揺させる
Meaning
To disturb or unsettle greatly in mind.
Example
The sudden noise perturbed the students during the exam.
突然の音が試験中に学生を動揺させました。
A2 adverb /ˈen.i.weər/

Anywhere

どこでも
Meaning
in or to any place; wherever
Example
You can sit anywhere you like in this restaurant.
このレストランでは好きな場所に座れます。
B1 noun /bæŋ/

Bang

突然の大きな音; 強い衝撃や打撃
Meaning
a sudden loud noise; a hard blow or hit
Example
The door closed with a loud bang that woke everyone up.
ドアが大きな音を立てて閉まり、皆を起こしました。
C1 noun /ˈnoʊ.və/

Nova

新星
Meaning
a star that suddenly increases greatly in brightness
Example
Astronomers discovered a new nova in the constellation.
天文学者たちは星座で新しいノヴァを発見しました。
C1 verb dɪˈsaɪ.fɚ

decipher

解読する, 暗号を解く, 翻訳する
Meaning
To convert something written in code into normal language; to succeed in understanding the meaning of something.
Example
It took hours to decipher the ancient script.
古代の文字を解読するのに何時間もかかりました。
B2 adjective /suːˈpriːm/

Supreme

最高の
Meaning
highest in rank, authority, or quality; greatest; most important
Example
The Supreme Court made the final decision.
最高裁判所は最終的な決定を下しました。
C1 noun /ˌdɛfəˈmeɪʃən/

defamation

名誉毀損
Meaning
the act of damaging someone's reputation by making false statements
Example
The newspaper was sued for defamation of character.
その新聞は名誉毀損で訴えられた。
C2 noun /ˈɡæli/

galley

船の厨房
Meaning
A low, flat ship used in ancient times, often with sails and oars; also, a kitchen on a ship or aircraft.
Example
The galley was filled with the smell of freshly cooked food.
船の厨房は新鮮に調理された食べ物の匂いで満ちていた。
B2 verb /poʊk/

poke

突く
Meaning
to push or prod with a finger or pointed object
Example
Don't poke me with your finger.
指で突っつかないで。
C2 verb /ˈæmərˌtaɪz/

amortize

償却
Meaning
To gradually reduce or pay off a debt with regular payments.
Example
They plan to amortize the mortgage over 20 years.
彼らは20年間で住宅ローンをアモーティゼする予定です。
B2 noun /ˈpɛzənt/

peasant

農民
Meaning
a poor farmer or agricultural laborer who owns or rents a small piece of land for cultivation
Example
The peasant worked hard in the fields from dawn to dusk.
その農民は夜明けから日暮れまで畑で一生懸命働いていました。
B2 noun /nɒsˈtæl.dʒə/

nostalgia

ノスタルジア
Meaning
A sentimental longing for the past, typically for a period or place with happy personal associations.
Example
Listening to old songs fills me with nostalgia.
古い歌を聞くと、ノスタルジアで満たされます。
C1 verb /per/

pare

皮をむく
Meaning
to cut away the outer covering or reduce something gradually
Example
She pared the apple before eating it.
彼女はリンゴを食べる前に皮をむいた。
C2 noun /ˈbækənæl/

bacchanal

狂乱のパーティ
Meaning
A noisy party involving drinking and revelry.
Example
The festival turned into a wild bacchanal by midnight.
祭りは真夜中に狂乱のパーティに変わった。
B2 adjective /ˈdæz.lɪŋ/

Dazzling

眩しい; 印象的な
Meaning
extremely bright and impressive; brilliant and stunning
Example
The dazzling lights of the city amazed the tourists.
その都市の眩い光は観光客を驚かせました。
A1 noun /tiː/

Tea

お茶
Meaning
a hot drink made by pouring boiling water onto dried leaves
Example
We drink tea every morning at breakfast.
私たちは毎朝、朝食のときにお茶を飲みます。
C1 adverb /ɔːˈtɒnəməsli/

autonomously

自律的に
Meaning
In an independent or self-governing manner.
Example
The robot can operate autonomously without human intervention.
ロボットは人間の介入なしで自律的に動作できます。
B1 noun /ˈɡæðərɪŋ/

gathering

集まり
Meaning
a meeting or assembly of people for a particular purpose
Example
We attended a family gathering last weekend.
私たちは先週末、家族の集まりに参加しました。
A2 noun tuːlz

Tools

道具
Meaning
A device or implement used to carry out a particular function.
Example
You can use online tools like FamilySearch to create a family tree.
オンラインツールを使用して、FamilySearchのような家系図を作成できます。
C1 verb /əˈbɔːrt/

abort

中止する；中絶する
Meaning
to stop a process or action before it is completed; to end a pregnancy deliberately
Example
The pilot decided to abort the mission due to bad weather.
悪天候のため、パイロットは任務を中止した。
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。
A2 noun ˈtem.pər.ə.tʃər

temperature

温度
Meaning
The degree or intensity of heat present in a substance or object.
Example
Rising temperatures affect agricultural output.
上昇する温度は農業生産に影響を与える。
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。
A2 adjective /prəˈfɛʃənl/

professional

プロフェッショナル
Meaning
relating to a job that requires special training or education
Example
She is a professional dancer who performs internationally.
彼女は国際的に活躍するプロフェッショナルダンサーです。
B2 noun ˈmaɪl.stəʊn

milestone

マイルストーン
Meaning
An important event or stage in the development, progress, or history of something.
Example
This discovery is a milestone in biotechnology.
この発見はバイオテクノロジーにおける重要なマイルストーンです。
C2 noun /ˌkɒnfəˈriː/

conferee

会議参加者
Meaning
a person who takes part in a conference
Example
Each conferee received a badge at the registration desk.
各会議参加者は登録デスクでバッジを受け取りました。
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。
B2 verb /ˈæktɪveɪt/

activate

アクティベート
Meaning
to make something start or function
Example
She pressed the button to activate the machine.
彼女は機械を起動するためにボタンを押しました。
B2 noun sɔɪl ɪˈrəʊʒən

soil erosion

土壌侵食
Meaning
The wearing away of topsoil by water, wind, or other natural forces.
Example
Soil erosion can lead to the loss of fertile land.
土壌侵食は肥沃な土地の喪失につながる可能性があります。
B2 noun /slʌm/

Slum

スラム街
Meaning
a poor urban area with substandard housing and squalid conditions
Example
The government is working to improve conditions in the slum.
政府はスラムの条件を改善するために取り組んでいます。
B2 noun /ˈɜːrnər/

earner

稼ぐ人
Meaning
A person who earns money through work or business
Example
She is the primary earner in her family.
彼女は家族の主要な稼ぐ人です。
C1 adjective /ˈwɒn.tən/

Wanton

故意で挑発されていない; 性的に不謹慎または放蕩
Meaning
deliberate and unprovoked; sexually immodest or promiscuous
Example
The vandals caused wanton destruction to the public property.
破壊者たちは公共財産に故意の破壊をもたらしました。
B2 adjective /ˈɒp.tɪ.məl/

optimal

最適、最良
Meaning
Best or most favorable; the most effective under particular conditions.
Example
The optimal temperature for plant growth is around 25°C.
植物の成長に最適な温度は約25°Cです。
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。
C1 adjective /ˈpɪt.i.ə.bəl/

pitiable

哀れな
Meaning
deserving sympathy or compassion
Example
The stray dog looked pitiable in the rain.
その迷子の犬は雨の中で哀れに見えた。
A2 noun /vɔɪs/

voice

声
Meaning
the sound produced by the vocal cords; the ability to speak or express oneself
Example
She has a beautiful voice that captivates the audience.
彼女には観客を魅了する美しい声があります。
A2 noun /hɛn/

Hen

雌鶏
Meaning
female chicken
Example
The hen laid fresh eggs in the nest.
雌鶏は巣に新鮮な卵を産んだ。
C1 noun /ˈθʌroʊˌfɛr/

thoroughfare

大通り
Meaning
a main road or public highway that goes through a place
Example
The new mall is located along the main thoroughfare.
新しいショッピングモールは大通り沿いにあります。
A1 verb /ˈhæpən/

happen

起こる
Meaning
to occur or take place; to come about by chance
Example
What happened at the meeting yesterday?
昨日の会議で何が起こったのですか？
C1 adjective /ˈmeʒ.ər.ə.bəl/

Measurable

測定可能な; 定量的な
Meaning
able to be measured; quantifiable
Example
The project's success was measurable by increased sales.
プロジェクトの成功は売上の増加で測定可能でした。
B1 adjective /ˈwaɪə.ləs/

Wireless

ワイヤレス; ケーブルなし
Meaning
operating without wires; using radio waves for communication
Example
My wireless headphones provide excellent sound quality without any cables.
私のワイヤレスヘッドフォンはケーブルなしで素晴らしい音質を提供します。
C1 noun /ˈfʌŋɡəs/

fungus

菌類
Meaning
a spore-producing organism feeding on organic matter, including molds, yeast, and mushrooms
Example
A strange fungus was growing on the old tree.
古い木に奇妙な菌類が生えていました。
B2 noun /ˈdraɪv.weɪ/

driveway

車道
Meaning
a short private road leading from a street to a house or garage
Example
The car was parked in the driveway next to the garden.
車は庭の隣の車道に停められていた。
C2 verb /ˈskærɪfaɪ/

scarify

土を耕す
Meaning
to make shallow cuts or scratches; to loosen the surface of soil
Example
The farmer scarified the soil before planting seeds.
農家は種を植える前に土をスカリファイしました。
C2 adjective /ˌsuː.pɚˈsɪl.i.əs/

supercilious

傲慢な
Meaning
Behaving or looking as though one thinks one is superior to others; arrogant and disdainful.
Example
She gave him a supercilious smile as if he was beneath her.
彼女は彼に傲慢な笑顔を見せた、まるで彼が彼女より下のように。
A2 noun /ˈdaɪəri/

diary

日記
Meaning
a book in which one keeps a daily record of events and experiences
Example
She wrote about her day in her diary before going to bed.
彼女は寝る前に日記にその日の出来事を書きました。
C1 adjective/noun nɪˈmɒn.ɪk

mnemonic

記憶術、記憶を助ける技術
Meaning
Assisting or intended to assist memory; a device or technique to aid memory.
Example
A mnemonic device helps students remember complex concepts.
ニーモニック装置は学生が複雑な概念を覚えるのに役立ちます。
C2 noun /ˈɪəri/

eyry

猛禽の巣
Meaning
an alternative spelling of eyrie; a nest of a bird of prey
Example
The falcon guarded its eyry fiercely.
隼はその巣を激しく守った。
C1 noun /ˈstætʃər/

stature

名声、身長
Meaning
A person's natural height or their reputation and importance.
Example
Her intellectual stature made her a respected figure in academia.
彼女の知的名声は、彼女を学界で尊敬される人物にしました。
C1 noun /əˈsæsɪn/

Assassin

暗殺者
Meaning
a person who murders an important person for political or religious reasons
Example
The president was protected from potential assassins by security guards.
大統領はセキュリティガードによって潜在的なアサシンから守られていた。
A1 verb /liːv/

leave

出発する
Meaning
to go away from; to depart or exit
Example
The train leaves at 6 PM.
電車は午後6時に出発します。
B2 noun /ˈɪɡ.nər.əns/

Ignorance

無知
Meaning
lack of knowledge or information; the state of being uninformed about something
Example
His ignorance about basic computer skills made it difficult for him to find a job.
基本的なコンピュータースキルに関する彼の無知は、彼が仕事を見つけるのを難しくしました。
C1 verb/noun /ˈkrɒn.ɪ.kəl/

chronicle

出来事を発生した順番で記録する
Meaning
To record events in the order in which they happened; a written record of historical events.
Example
She decided to chronicle her journey through a blog.
彼女はブログを通じて彼女の旅を記録することに決めました。
A2 noun /ɛmˈplɔɪ.iː/

employee

従業員
Meaning
A person who works for an organization or company in return for payment.
Example
The company values each employee's contribution to its success.
会社は各従業員の成功への貢献を重視しています。
A2 adjective /mɪkst/

mixed

混合された
Meaning
consisting of different elements or having varied opinions or feelings
Example
The audience had mixed reactions to the film.
観客は映画に対して混合した反応を示しました。
C2 noun /ˈkætɪtʃuː/

Catechu

カテチュー
Meaning
an extract from a tropical Asian plant, used in tanning and dyeing
Example
Catechu extract is commonly used in traditional medicine.
カテチュー抽出物は伝統医学で一般的に使用されます。
B1 verb /bʌmp/

bump

衝突
Meaning
To hit something or someone by accident; to knock against something.
Example
He accidentally bumped into the door.
彼はドアに偶然ぶつかった。
A2 noun əˈlɪm.pɪk ɡeɪmz

Olympic Games

オリンピック競技大会
Meaning
The world's largest international sports competition held every four years, bringing together athletes from different countries to compete in various sports.
Example
The Olympic Games bring together the world's top athletes.
オリンピック競技大会は世界のトップアスリートを集めます。
B2 noun /bækˈtɪəriəm/

bacterium

バクテリア
Meaning
A single microscopic organism belonging to the group of bacteria.
Example
The doctor explained that a single bacterium can multiply rapidly under the right conditions.
医者は、1つのバクテリウムが適切な条件下で急速に増殖できることを説明しました。
B2 noun ˈvaɪtəl rɪˈsɔːrsɪz

vital resources

重要な資源
Meaning
Essential assets or supplies that are crucial for survival and development.
Example
Water is one of Bangladesh's vital resources.
水はバングラデシュの重要な資源の一つです。
B2 noun ˌɪr.ɪˈɡeɪ.ʃən

irrigation

灌漑
Meaning
The artificial application of water to land or soil.
Example
Irrigation systems improve crop yields in dry regions.
灌漑システムは乾燥した地域で作物の収穫量を増加させます。
C2 noun /ˈtɜːrnkoʊt/

turncoat

裏切り者
Meaning
a person who switches allegiance, often betraying a cause or group
Example
He was branded a turncoat after joining the rival political party.
彼はライバルの政治党に参加した後、裏切り者と呼ばれました。
C1 adjective /ɪnˈdefɪnət/

Indefinite

不確定な
Meaning
not clearly defined; uncertain; vague; unlimited in time
Example
The meeting has been postponed for an indefinite period.
会議は不確定な期間に延期されました。
C1 noun ˌʌndərˈprɪvəlɪdʒd ɡruːps

underprivileged groups

恵まれないグループ
Meaning
Groups of people who lack basic necessities or advantages that are available to other members of society.
Example
Underprivileged groups benefit from social initiatives.
恵まれないグループは社会的なイニシアティブから利益を得ます。
B2 noun /ˈblʌn.dər/

blunder

愚かなまたは不注意なミス; 判断における重大な誤り。
Meaning
A stupid or careless mistake; a serious error in judgment.
Example
His blunder cost the company a fortune.
彼の失敗は会社に大きな損失を与えました。
B2 noun /ɪnˈfek.ʃən/

Infection

感染
Meaning
the process of infecting or the state of being infected; a disease caused by germs
Example
The doctor prescribed antibiotics to treat the bacterial infection in her throat.
医師は彼女の喉の細菌感染を治療するために抗生物質を処方しました。
C2 noun /ˈmæləprɒˌpɪzəm/

malapropism

誤用語
Meaning
the mistaken use of a word in place of a similar-sounding one, often with amusing effect
Example
He is famous for his malapropism when speaking in public.
彼は公衆の前で話すときに誤用語で有名です。
C1 noun ˈkɑːr.bən ˌsiː.kwəˈstreɪ.ʃən

carbon sequestration

炭素の固定化と長期貯蔵
Meaning
The process of capture and long-term storage of atmospheric carbon dioxide to mitigate or defer global warming.
Example
Forests play a key role in carbon sequestration.
森林は炭素の固定化において重要な役割を果たします。
C1 adjective /ˌrɛtroʊˈæktɪv/

retroactive

遡及的
Meaning
applying to a period before it was enacted or established
Example
The new law was made retroactive to cover past cases.
新しい法律は過去のケースをカバーするために遡及的に作られました。
B2 adjective /dɪˈfensɪv/

Defensive

防御的
Meaning
used or intended to defend or protect; showing a tendency to react in an angry or hurt way when criticized
Example
He became defensive when criticized about his work.
彼は自分の仕事を批判されると防御的になった。
A2 noun /ˈwɛdɪŋ/

wedding

結婚式
Meaning
a marriage ceremony, especially considered as including the associated celebrations
Example
They are planning a wedding in the summer.
彼らは夏に結婚式を計画しています。
C2 noun /ˈmeɪlstrəm/

maelstrom

旋風
Meaning
A powerful whirlpool in the sea or a situation of confused movement and turmoil.
Example
The ship was caught in a maelstrom of waves and wind.
船は波と風の旋風に巻き込まれました。
C2 noun /ˈoʊ.vər.let/

Overlet

ベッドパッド
Meaning
a thin mattress or pad placed over a bed for additional comfort
Example
The overlet makes the bed more comfortable to sleep on.
オーバーレットはベッドをより快適にして眠りやすくします。
C1 noun ˌnæʃ.ən.ə.laɪˈzeɪ.ʃən

nationalization

国有化
Meaning
The process of a government taking control of private property or industry.
Example
The nationalization of banks was aimed at stabilizing the economy.
銀行の国有化は経済の安定を目指して行われました。
B2 noun /kʌlt/

cult

カルト
Meaning
a system of religious veneration and devotion directed toward a particular figure or object
Example
The cult followed their leader with great devotion.
カルトは彼らの指導者に大きな献身をもって従った。