B2 noun /rɪb/

Rib

あばら骨

Meaning

one of the curved bones that protect the chest and lungs

Example

He broke his rib in the accident.

彼は事故であばら骨を折った。

B1 noun /rɪˈliːf/

Relief

安心; 安堵; 支援

Meaning

a feeling of comfort after worry or distress; assistance given to those in need

Example

She felt great relief when the exam was over.

試験が終わったとき、彼女は大きな安堵感を感じました。

C1 adjective /rɪˈsɔːrs ɪˈfɪʃ.ənt/

resource-efficient

資源効率的

Meaning

Using resources in a way that minimizes waste and maximizes productivity.

Example

Resource-efficient farming conserves water and energy.

資源効率的な農業は、水とエネルギーを節約します。

B2 verb /riːˈɔːrɡənaɪz/

reorganize

再編成する

Meaning

to arrange something again in a different way for greater efficiency or order

Example

The manager decided to reorganize the team structure.

マネージャーはチームの構造を再編成することに決めました。

C2 noun /rɪˈfɛkʃən/

refection

食事 / 反省

Meaning

a meal or the act of taking food and drink

Example

The monks gathered for their evening refection.

僧侶たちは夕食のために集まりました。

C1 verb /rɪˈnɛɡ/

renege

約束を破る

Meaning

to go back on a promise, agreement, or commitment

Example

The company reneged on its promise to increase wages.

その会社は賃金を引き上げるという約束を破りました。

C1 noun /ˈrɛzɪn/

resin

樹脂

Meaning

a sticky organic substance, usually secreted by plants, often used in varnishes or plastics

Example

The craftsman used natural resin to make the sculpture shine.

職人は彫刻を輝かせるために天然の樹脂を使用しました。

C1 noun /ˈrɪɡər/

rigor

厳格さ

Meaning

strictness, severity, or demanding conditions

Example

The training was carried out with great rigor.

訓練は大変厳格に行われました。

C1 noun /rɪˈfaɪnəri/

refinery

製油所

Meaning

an industrial facility where raw materials are processed and purified

Example

The oil refinery processes thousands of barrels daily.

石油精製所は毎日何千バレルもの石油を処理します。

C1 noun ˈrez.ɪ.djuː

residue

残留物

Meaning

A small amount of something that remains after the main part has gone or been removed.

Example

Soap residue affects appliance efficiency.

石鹸の残りが機器の効率に影響を与えます。

C1 adjective /ˈreɪdiənt/

radiant

輝く

Meaning

Shining brightly; expressing great happiness.

Example

She looked radiant in her wedding dress.

彼女はウェディングドレスで輝いて見えました。

B1 verb /rʌb/

rub

こする

Meaning

to press and move something firmly against a surface; to apply pressure with movement

Example

She rubbed her hands together to keep them warm.

彼女は手をこすり合わせて暖かく保った。

A2 noun ˈrɛlətɪvz

Relatives

親戚

Meaning

A person connected by blood or marriage; a kinsman or kinswoman.

Example

Relatives can help you build a complete family tree.

親戚はあなたが完全な家系図を作る手助けをしてくれるかもしれません。

B2 noun rɪˈzentmənt

resentment

憤り

Meaning

Bitter indignation at having been treated unfairly.

Example

Resentment grew among the students.

学生の間で憤りが増大した。

B2 verb /rɪˈzɑlv/

resolve

解決する

Meaning

to solve a problem; to decide firmly

Example

The manager resolves the conflict between employees.

マネージャーは従業員間の対立を解決します。

C2 adjective /rɪˈfræktəri/

refractory

反抗的

Meaning

Stubborn or resistant to control, authority, or treatment.

Example

The refractory child refused to follow the teacher's instructions.

反抗的な子供は教師の指示に従うのを拒否した。

B2 noun, verb, adjective /ræŋk/

rank

ランク

Meaning

A position in a hierarchy; to place in order according to importance or quality.

Example

She quickly rose to a senior rank in the company.

彼女は会社で素早く上級ランクに昇進しました。

B1 adjective /roʊˈmæn.tɪk/

Romantic

ロマンチック

Meaning

relating to love; idealistic; dreamy

Example

They enjoyed a romantic dinner by candlelight.

彼らはろうそくの光でロマンチックなディナーを楽しんでいました。

B2 noun /ˈrɛlɪvəns/

relevance

rape

強姦

Meaning

to force someone to have sexual intercourse without their consent

Example

The law strictly punishes those who commit rape.

法律は強姦を犯した者に厳罰を与えます。

B2 verb /reɪn/

reign

統治する

Meaning

to rule as a king or queen; to be dominant

Example

The queen reigned for over sixty years.

女王は60年以上統治していました。

B2 noun /ˈreɪ.zər/

Razor

かみそり

Meaning

a sharp-edged instrument used for shaving hair from the skin

Example

He shaved his beard with a sharp razor.

彼は鋭いかみそりでひげを剃った。

C2 noun /ˌrækənˈtɜːr/

Raconteur

幸せ

Meaning

a person who tells anecdotes in a skillful and amusing way

Example

The old man was a gifted raconteur who entertained everyone with his stories.

彼女は賞を受け取ったとき、喜びを隠せなかった。

B2 noun /rɪˈfjuː.zəl/

Refusal

拒否; 拒絶

Meaning

the act of saying no to something or not accepting something

Example

His refusal to cooperate made the project more difficult.

彼の協力拒否はプロジェクトをさらに難しくした。

B1 adjective /ˈrʊr.əl/

Rural

田舎の

Meaning

relating to the countryside; characteristic of farming or country life

Example

She grew up in a rural area far from the city.

彼女は街から遠く離れた田舎の地域で育ちました。

C1 verb /rɪˈtɔːrt/

retort

反論

Meaning

To reply quickly or sharply, often in a witty or angry manner.

Example

He quickly retorted that he was not to blame.

彼は素早く反論した、彼が悪くないと言った。

B1 adjective /ˈrɔɪ.əl/

Royal

ロイヤル

Meaning

belonging to or connected with the monarch or monarchy; magnificent; excellent

Example

The royal family attended the ceremony.

ロイヤルファミリーが式典に出席しました。

C2 adjective /ˌrɛpərˈtɔːriəl/

repertorial

レポートに関する

Meaning

Relating to or characteristic of a repertoire, especially in journalism or performance contexts.

Example

The journalist's repertorial style captured every detail of the unfolding story.

そのジャーナリストのレポーティオリアルスタイルは、展開するストーリーのあらゆる詳細を捉えました。

B2 noun /rɪˈvaɪ.vəl/

Revival

復活

Meaning

an improvement in the condition or strength of something; renewed interest in or attention to something

Example

There has been a revival of interest in traditional crafts.

伝統的な工芸への関心が復活しました。

B1 verb rɪˈdjuːst

reduced

減らす

Meaning

Make smaller or less in amount, degree, or size.

Example

Singapore has reduced plastic usage significantly.

シンガポールはプラスチックの使用を大幅に減らしました。

C1 noun ˌrɛk.əˈlɛk.ʃən

Recollection

記憶

Meaning

Remembering past events or information

Example

His recollection of childhood memories was vivid.

彼の子供時代の記憶は鮮明だった。

B2 adjective rəʊˈbʌst

robust

ロバスト

Meaning

Strong and healthy; vigorous; able to withstand or overcome adverse conditions.

Example

The robust infrastructure ensures reliable communication.

ロバストなインフラは信頼できる通信を保証します。

B2 adverb /ruːˈtiːnli/

routinely

定期的に

Meaning

as part of a regular procedure; habitually

Example

The staff routinely checks the equipment for safety.

スタッフは定期的に安全のために機器を点検します。

C1 verb /ˌriːˈvaɪ.t̬əl.aɪz/

revitalize

再活性化する

Meaning

To restore energy and effectiveness to something.

Example

The new policies aim to revitalize the economy.

新しい政策は経済を再活性化することを目的としています。

C2 noun /rɪˈfræk.tər/

refractor

屈折望遠鏡

Meaning

A type of telescope that uses lenses to focus light.

Example

Refractor telescopes use lenses to focus light.

屈折望遠鏡は光を集中させるためにレンズを使用します。

B2 noun /rɪˈhɜːr.səl/

Rehearsal

リハーサル; 公演の練習

Meaning

a practice performance of a play, concert, or other work for later public performance

Example

The final rehearsal before opening night went perfectly.

開幕前の最後のリハーサルは完璧でした。

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。

C2 adjective /rɪˈdaʊ.tə.bəl/

redoubtable

恐ろしい/尊敬すべき

Meaning

formidable, especially as an opponent; inspiring fear or respect

Example

She was a redoubtable leader who commanded respect from all.

彼女は全員から尊敬を集める恐ろしいリーダーだった。

A2 noun /rɒk/

rock

岩石

Meaning

a large, solid piece of mineral matter

Example

The mountain was made of solid rock.

その山は固い岩石でできていました。

B1 verb /rɪˈliːs/

release

解放する

Meaning

to set free; to allow something to escape or go away

Example

The prisoner was released after ten years.

囚人は10年後に解放されました。

B2 noun /rɪˈfɔːr.mər/

Reformer

改革者

Meaning

a person who works to bring about positive changes in society or institutions

Example

The social reformer dedicated her life to improving education for all children.

社会的な改革者は、すべての子供たちの教育を改善するために自分の人生を捧げました。

B2 verb /ˌriːˈbɪld/

rebuild

再建する

Meaning

to build something again after it has been damaged or destroyed

Example

The villagers worked together to rebuild the bridge after the flood.

村人たちは洪水の後、橋を再建するために協力しました。

B2 verb /ˌriː.kənˈstrʌkt/

reconstruct

再建する

Meaning

to build or form something again after it has been damaged or destroyed

Example

The city was reconstructed after the earthquake.

その都市は地震後に再建されました。

C1 noun /rɪˈdʒɔɪsɪŋ/

rejoicing

喜び

Meaning

The action of showing great joy or happiness

Example

There was much rejoicing after the victory.

勝利後、多くの喜びがありました。

A2 adjective /reər/

Rare

珍しい

Meaning

not occurring very often; uncommon or unusual

Example

It's rare to find such beautiful handmade jewelry these days.

こんな美しい手作りのジュエリーを見つけることは珍しい。

C1 verb /rɪˈdʒuː.vɪ.neɪt/

rejuvenate

再生する

Meaning

To make or feel young, healthy, or energetic again.

Example

A vacation can rejuvenate the mind and body.

休暇は心と体を再生させることができます。

C1 noun /ˈriːbeɪt/

rebate

リベート/払い戻し

Meaning

a partial refund given to someone who has paid too much money for something

Example

The store offered a rebate on bulk purchases.

その店は大量購入に対してリベートを提供しました。

B2 verb /rɪˈvaɪv/

revive

蘇生する

Meaning

To bring back to life, consciousness, or activity.

Example

The paramedics managed to revive the unconscious man.

救急隊員は意識不明の男性を蘇生させることに成功した。

B1 noun /raɪs ˈkʊkər/

Rice cooker

電気炊飯器

Meaning

an electric appliance designed to cook rice automatically

Example

The rice cooker automatically switches off when the rice is perfectly cooked.

ライスクッカーはご飯が完璧に炊けると自動でオフになります。

A2 adjective /ˈriː.sənt/

Recent

最近の; 新しい; 現在の;

Meaning

happening not long ago; new; current;

Example

The recent changes in weather patterns concern scientists.

最近の天気の変化は科学者たちを心配させています。

C1 verb /rɪˈmɪt/

remit

送金する / 免除する

Meaning

To send money in payment or as a gift; to cancel or refrain from exacting a debt or punishment.

Example

He promised to remit the payment by the end of the week.

彼は週の終わりまでに支払いを送金すると約束しました。

A1 noun /raɪs/

Rice

ご飯

Meaning

a cereal grain that is a staple food in many countries

Example

We eat rice with curry for dinner.

私たちは夕食にカレーと一緒にご飯を食べます。

B2 noun /ˌrɛɡ.jʊˈleɪ.ʃən/

regulation

権限によって作成され、維持される規則または指示

Meaning

A rule or directive made and maintained by an authority.

Example

Government regulation ensures fair business practices.

政府の規制は公平なビジネス慣行を確保します。

B2 verb /rɪˈtriːv/

retrieve

取り戻す

Meaning

to get something back that was lost or taken; to recover

Example

She managed to retrieve her lost phone from the taxi.

彼女はタクシーから失われた電話を取り戻すことができました。

B2 verb /ˈræl.i/

rally

Meaning

to come together for a common purpose or to recover strength or spirit

Example

The team rallied after halftime and won the match.

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。

C1 noun /ˈrʌp.tʃər/

Rupture

破裂; 関係の断絶

Meaning

breaking or bursting apart; breakdown of relations

Example

The rupture in the pipeline caused a massive oil spill.

パイプラインの破裂が大規模な石油漏れを引き起こしました。

B2 verb /rɪˈzɛmbəl/

resemble

似ている

Meaning

to look like or be similar to something or someone

Example

She resembles her mother in both appearance and mannerisms.

彼女は見た目と仕草の両方で母親に似ています。

C1 noun /rɪˈmɔːrs/

Remorse

後悔

Meaning

deep regret or guilt for a wrong committed; bitter regret for something done

Example

He felt deep remorse for his actions.

彼は自分の行動に対して深い後悔を感じていた。

A2 verb /rɪˈsiːv/

receive

受け取る

Meaning

to get or accept something given; to welcome

Example

She receives a gift from her friend.

彼女は友達から贈り物を受け取ります。

C1 adjective /ˈrænsɪd/

rancid

腐った

Meaning

having a bad taste or smell due to being old or spoiled (especially fats or oils)

Example

The butter had gone rancid after being left out too long.

バターは外に長時間置かれて腐ってしまった。

B2 noun /ˈruːmər/

rumor

噂

Meaning

a currently circulating story or report of uncertain or doubtful truth.

Example

There’s a rumor that the company will merge next year.

来年、会社が合併するという噂があります。

B2 adjective /ˈrændəm/

Random

ランダム

Meaning

without pattern or predetermined order; happening by chance

Example

She selected a random book from the library shelf.

彼女は図書館の棚からランダムに本を選びました。

C1 noun /rɪˈbʌtəl/

rebuttal

反論

Meaning

a statement or argument made to oppose or disprove another

Example

Her rebuttal was clear and convincing.

彼女の反論は明確で説得力がありました。

B2 noun ˌreɪdɪˈeɪʃən

radiation

放射線

Meaning

The emission of energy as electromagnetic waves or as moving subatomic particles.

Example

Radiation from the sun can be harmful without protection.

太陽からの放射線は保護なしでは有害である可能性があります。

C1 noun /riˈæktənt/

reactant

Meaning

A substance that takes part in and undergoes change during a chemical reaction.

Example

Oxygen is a reactant in the process of combustion.

C1 noun /rɪˈpɑːzɪtɔːri/

repository

リポジトリ

Meaning

a place where things are stored or kept for safekeeping

Example

The library serves as a repository of knowledge.

図書館は知識のリポジトリとして機能します。

B2 verb /riːp/

reap

収穫する

Meaning

to cut or gather a crop; to receive as a consequence of actions

Example

Farmers reap wheat in the late summer.

農家は晩夏に小麦を収穫します。

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。

C1 adjective /ˈrʌs.tɪk/

Rustic

シンプルで洗練されていない; 農村地域に関連

Meaning

simple and unsophisticated; relating to rural areas

Example

The rustic cottage had wooden beams and a thatched roof.

そのラスティックな小屋は木製の梁と藁葺きの屋根を持っていた。

A2 verb /reɪz/

raise

上げる / 増加させる

Meaning

To lift or move something to a higher position; to increase; to bring up.

Example

She raised her hand to ask a question.

彼女は質問をするために手を上げました。

B1 noun /rɪˈkɔːdɪŋ/

recording

録音

Meaning

the act or process of recording something

Example

The recording of the interview was clear and loud.

インタビューの録音は明瞭で大きかった。

B2 noun /ˈriːzənɪŋ/

reasoning

推論

Meaning

the process of thinking about something in a logical way in order to form a conclusion or judgment

Example

Her reasoning for leaving was clear and logical.

彼女の出発の推論は明確で論理的でした。

C1 adjective /rɪˈmiːdiəl/

Remedial

修正的; 治療的; 回復的;

Meaning

intended as a remedy; corrective; providing a cure;

Example

The students need remedial classes to improve their math skills.

学生は数学スキルを向上させるためにリメディアルクラスが必要です。

C2 noun, adjective, verb /ˈrɛprəˌbeɪt/

reprobate

Meaning

A person of immoral character; to express disapproval of; morally corrupt.

Example

The old reprobate spent his days gambling and drinking.

C1 adjective /rɪˈsɪ.prə.kəl/

Reciprocal

相互の; 互恵的な; 両者で平等に分け合う;

Meaning

given or done in return; mutual; shared equally by both parties;

Example

The two countries have a reciprocal trade agreement.

二国間には相互の貿易協定があります。

B1 noun /ˈriː.dʒən/

Region

地域; 区域; 地帯

Meaning

a particular area or part of a country or the world

Example

This region is famous for its wine production.

この地域はワイン生産で有名です。

C2 adjective /ˈræŋ.kər.əs/

rancorous

恨みを持った

Meaning

Characterized by bitterness or resentment.

Example

Their rancorous debate lasted for hours.

彼らの恨みを持った議論は何時間も続いた。

C1 noun /ˌriː.pəˈkʌʃ.ən/

repercussion

影響

Meaning

An unintended consequence occurring some time after an event or action.

Example

The economic crisis had severe repercussions on global trade.

経済危機は世界貿易に深刻な影響を与えました。

C1 noun, verb /raʊt/

rout

敗北

Meaning

A decisive defeat; to defeat completely.

Example

The army routed the enemy forces in the battle.

軍隊は戦いで敵軍を完全に打ち負かしました。

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。

B1 noun /ruːˈtiːn/

routine

ルーチン, 習慣, 固定された順序

Meaning

A sequence of actions regularly followed; a fixed program.

Example

A well-structured routine improves productivity.

よく構造化されたルーチンは生産性を向上させます。

C2 verb /ˈrævəl/

ravel

絡まる / 解く

Meaning

to tangle or complicate; to untangle or unravel depending on context

Example

She began to ravel the loose threads of the sweater.

彼女はセーターのゆるい糸をほどき始めました。

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。

C1 adjective rɪˈlɛntləs

relentless

容赦ない

Meaning

Oppressively constant; incessant; showing no abatement of severity, intensity, strength, or pace.

Example

The freedom fighters' relentless struggle led to victory.

自由戦士たちの容赦ない戦いは勝利へと導いた。

C1 verb /rɪˈvɜːrbəreɪt/

reverberate

反響する

Meaning

To echo repeatedly or have continuing effects.

Example

The sound of the explosion reverberated through the valley.

爆発音は谷を通り過ぎて反響しました。

B2 noun /red liːf/

Red leaf

赤い葉

Meaning

red-colored leafy vegetable; amaranth leaves used as greens

Example

Red leaf is rich in iron and is commonly eaten in Bengali households.

赤い葉は鉄分が豊富で、ベンガルの家庭でよく食べられます。

C1 adverb /ˈrɪdʒɪdli/

Rigidly

厳格に; 柔軟性なしで

Meaning

in a strict, inflexible manner; without compromise

Example

The rules are rigidly enforced in this institution.

この機関ではルールは厳格に適用されます。

C1 adjective /rɪˈzɪstɪv/

resistive

抵抗性

Meaning

tending to resist or oppose; in physics, relating to electrical resistance

Example

The material has resistive properties that slow down current flow.

その材料は、電流の流れを遅くする抵抗性の特性を持っています。

B1 adjective /ˈrel.ə.vənt/

Relevant

Restriction

制限; 限界; コントロール

Meaning

a limiting condition or measure; the limitation or control of someone or something

Example

There are strict restrictions on smoking in public places.

公共の場所での喫煙には厳格な制限があります。

B2 adjective /ˈrʌs.ti/

Rusty

錆びた; 練習不足; 最近の練習不足による障害

Meaning

affected by rust; out of practice; impaired by lack of recent practice

Example

My piano skills are rusty after not playing for years.

何年もピアノを弾いていなかったので、私のピアノのスキルは錆びついています。

A1 adverb /ˈriː.ə.li/

Really

本当に; 実際に; とても

Meaning

actually; truly; very much

Example

I really enjoyed the concert last night.

昨晩のコンサートは本当に楽しめました。

B2 verb /ˌriːəˈreɪndʒ/

rearrange

再配置する

Meaning

to change the order or position of something

Example

She decided to rearrange the furniture in her living room.

彼女はリビングルームの家具を再配置することに決めました。

B2 noun /ˈreb.əl/

Rebel

反逆者

Meaning

a person who resists authority or control

Example

The young rebel refused to follow the school rules.

その若い反逆者は学校の規則に従うことを拒否した。

A1 noun /ˈrɪv.ər/

River

川

Meaning

a large natural stream of water flowing in a channel to the sea, a lake, or another river

Example

The river flows through the valley and into the ocean.

川は谷を流れ、海に注ぎ込む。

C1 verb /ˈrɪdɪkjuːl/

ridicule

嘲笑する

Meaning

To make fun of someone or something in a cruel or dismissive way.

Example

He was ridiculed for his strange ideas.

彼は奇妙な考えのために嘲笑されました。

C1 noun /ˈræʃən/

ration

配給

Meaning

a fixed amount of something, especially food, officially allowed to each person

Example

During the war, each family received a weekly ration of rice.

戦争中、各家族は毎週一定量のご飯を配給されました。

B1 noun /roʊp/

rope

ロープ

Meaning

a strong, thick cord made of twisted fibers or strands

Example

The climbers used a rope to scale the mountain.

登山者は山を登るためにロープを使いました。

C2 noun /ruːd/

rood

十字架

Meaning

a crucifix, especially one positioned above the entrance to the chancel of a church

Example

The old church displayed a carved rood above the altar.

古い教会は祭壇の上に彫られた十字架を展示していました。

C1 adjective rɪˈsɛʃ.ən.er.i

recessionary

不況に関する

Meaning

Relating to or characterized by economic recession.

Example

Governments introduce policies to counter recessionary effects.

政府は景気後退の影響に対処するために政策を導入しています。

B2 noun /ˈreɪ.zən/

Raisin

レーズン

Meaning

dried grape

Example

She added raisins to the oatmeal cookies for extra sweetness.

彼女はオートミールクッキーに甘さを加えるためにレーズンを加えました。

C1 noun /ˈrɛɡjəleɪtər/

regulator

調整装置

Meaning

a person or device that controls or maintains the operation of a system

Example

The government appointed a new regulator for the financial sector.

政府は金融セクターの新しい規制機関を任命した。

C2 verb /rɪˈtrɛntʃ/

retrench

コスト削減、従業員の解雇

Meaning

to reduce costs, spending, or staff to save resources

Example

The company had to retrench employees due to financial difficulties.

会社は財政的な困難のため、従業員をリトレンチしなければならなかった。

A2 adjective /rɪtʃ/

Rich

裕福な; お金持ちの; 貴重な

Meaning

having a lot of money or valuable possessions; abundant in nutrients or flavor

Example

The rich businessman donated money to the charity.

裕福な実業家がチャリティーに寄付をしました。

B2 noun rɪˈpʌb.lɪk

republic

共和国

Meaning

A state in which supreme power is held by the people and their elected representatives, with an elected or nominated president rather than a monarch.

Example

A republic is governed by representatives of the people.

共和国は人民の代表者によって治められています。

B2 noun ˌrev.əˈluː.ʃənz

revolutions

革命

Meaning

Dramatic and wide-reaching changes in political, social, or economic systems, often involving the overthrow of a government or social order.

Example

Revolutions often lead to significant societal changes.

革命はしばしば社会的な変革をもたらす。

B1 noun /ˈrʌbər/

rubber

幸福

Meaning

a tough elastic substance made from the latex of tropical plants or synthetically, used for making tires, boots, and other products.

Example

The tires are made of natural rubber.

彼女は賞を受け取ったとき、自分の幸福を隠すことができませんでした。

B1 noun /ˌrep.rɪˈzen.tə.tɪv/

representative

代表者

Meaning

A person chosen or appointed to act or speak for another or others.

Example

The representative addressed critical issues.

代表者は重要な問題に対処しました。

B2 verb /ˈrɛnəˌveɪt/

renovate

改装する

Meaning

to restore something old to a good state or to improve it

Example

They decided to renovate the old house before moving in.

彼らは引っ越す前に古い家を改装することに決めました。

C1 noun /rɑk sɔlt/

Rock Salt

岩塩

Meaning

natural salt crystals formed from evaporated ancient seas; unrefined salt

Example

Rock salt is considered healthier than table salt.

岩塩はテーブルソルトよりも健康的だと考えられています。

B2 verb /ˌriːprəˈdjuːs/

reproduce

再生する, 繁殖する

Meaning

To make a copy of something; to generate offspring.

Example

Many animals reproduce rapidly in favorable conditions.

多くの動物は好ましい条件下で急速に繁殖します。

C1 adjective /rɪˈsɛsɪv/

recessive

潜性

Meaning

In genetics, relating to a trait that is expressed only when two copies of the gene are present.

Example

Blue eye color is often a recessive trait.

青い目の色はしばしばリセシブな特徴です。

B1 adverb /ˈrʌfli/

Roughly

おおよそ; 粗暴または暴力的な方法で

Meaning

approximately; in a harsh or violent way

Example

The project will take roughly three months to complete.

このプロジェクトはおおよそ3ヶ月かかります。

B2 adjective /rɪˈflektɪv/

Reflective

反射的; 思慮深い; 光や画像を反射できる

Meaning

thoughtful; contemplative; able to reflect light or images

Example

After the meeting, he was in a reflective mood.

会議の後、彼は反射的な気分だった。

B1 noun rɔː mətɪˈrɪəlz

raw materials

原材料

Meaning

The basic material from which a product is made.

Example

The factory imports raw materials for production.

工場は生産のために原材料を輸入しています。

C1 noun /ˈrɒndɪvuː/

rendezvous

会合

Meaning

a meeting or appointment at an agreed time and place

Example

They arranged a secret rendezvous at the café.

彼らはカフェで秘密の会合を手配しました。

C1 noun /rɪˈvɜːrʒən/

reversion

逆転

Meaning

the act of returning to a previous state or condition

Example

The new policy marked a reversion to traditional methods.

新しい政策は伝統的な方法への逆転を意味しました。

B2 noun /ˌrɛvəˈleɪʃən/

revelation

啓示

Meaning

A surprising and previously unknown fact, especially one made known in a dramatic way.

Example

The book was full of shocking revelations about the politician.

その本はその政治家に関する衝撃的な啓示で満ちていました。

B2 adjective /ˈreɪsɪst/

racist

人種差別主義者

Meaning

showing or feeling discrimination or prejudice against people of other races

Example

He was accused of making racist comments.

彼は人種差別的なコメントをしたとして非難された。

C2 adjective /raɪˈpɛə.ri.ən/

riparian

河川や他の水路の岸辺に関連する

Meaning

Relating to or situated on the banks of a river or other watercourse.

Example

Riparian vegetation helps prevent soil erosion along rivers.

河川沿いの植生は、河川沿いの土壌浸食を防ぐのに役立ちます。