receptivity
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C1 noun /rɪˌsɛptɪˈvɪti/

receptivity

受容性
Meaning
The ability or willingness to receive something, especially signals or stimuli.
Example
Her receptivity to new ideas helped improve the project.
新しいアイデアへの受容性がプロジェクトの改善に役立った。
C1 verb /rɪˈtreɪs/

retrace

Meaning
to go back over a path or route; to recall and repeat steps taken earlier
Example
She retraced her steps to find her lost keys.
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 verb /ˌriːɪmˈbɜːrs/

reimburse

払い戻す
Meaning
to pay back money to someone who has spent it or lost it
Example
The company reimbursed him for travel expenses.
会社は彼に旅行費用を払い戻しました。
C1 noun/verb /rɪˈproʊtʃ/

reproach

非難 / 批判
Meaning
An expression of disapproval or disappointment; to criticize someone for doing wrong.
Example
She reproached him for arriving late to the meeting.
彼女は会議に遅れたことを彼に非難した。
C1 adjective /ræpt/

Rapt

夢中な
Meaning
completely fascinated or absorbed by what one is seeing or hearing
Example
The children listened with rapt attention to the storyteller.
子供たちは物語の語り手に夢中で耳を傾けました。
C1 phrase ˈriː.dʒən.əl ˈfɔː.rəm

regional forum

地域フォーラム
Meaning
A meeting or conference where representatives from countries or organizations in a specific geographical area discuss issues of common interest.
Example
The Regional Forum discussed deforestation impacts.
地域フォーラムでは、森林伐採の影響について議論されました。
C1 noun/verb /rɪˈlæps/

relapse

再発
Meaning
to return to a worse condition, especially after improvement; a deterioration after recovery
Example
After months of progress, he suffered a relapse.
数ヶ月の進歩の後、彼は再発しました。
C1 noun /rɪˌdʒuːvəˈneɪʃən/

rejuvenation

再生
Meaning
The process of restoring something to a former better state, especially referring to renewing soil fertility or revitalizing agricultural land through various restoration practices.
Example
Rejuvenation of soil is necessary for sustainable agriculture.
土壌の再生は持続可能な農業にとって必要不可欠です。
C1 noun /rɪˈvɒl.vər/

Revolver

リボルバー
Meaning
a pistol with revolving chambers enabling several shots to be fired without reloading
Example
The detective drew his revolver from its holster.
探偵はホルスターからリボルバーを抜き取った。
C1 noun /raɪt/

rite

儀式
Meaning
a religious or ceremonial act
Example
The wedding rite was performed with great solemnity.
結婚式の儀式は厳粛に行われました。
C1 adjective /ˈraʊ.di/

Rowdy

騒々しい; 無秩序な; 破壊的な
Meaning
disorderly; unruly; noisy and disruptive
Example
The rowdy children were making too much noise.
騒々しい子供たちは大きな音を立てていた。
C1 adjective /ˈriː.fleks/

Reflex

反射
Meaning
an action performed without conscious thought; relating to reflection
Example
The doctor tested her reflex response by tapping her knee.
医師は彼女の膝を軽く叩いて反射的な反応をテストしました。
C1 noun /rɪˈkluːs/

recluse

隠者
Meaning
A person who lives alone and avoids other people; someone who lives a solitary life.
Example
The old man lived as a recluse in the mountains.
その老人は山の中で隠者として暮らしていた。
C1 noun /rɪˈmɪt.əns/

Remittance

送金
Meaning
A sum of money sent in payment or as a gift.
Example
The country's economy benefits from expatriate remittance.
その国の経済は、移住者からの送金によって利益を得ている。
C1 noun ˌriːˈstrʌk.tʃər.ɪŋ

restructuring

再構築
Meaning
The action of organizing something differently.
Example
The company underwent restructuring to improve efficiency.
会社は効率を高めるために再構築を行った。
C1 adjective /rɪˈtaɪərɪŋ/

retiring

内向的
Meaning
Shy and reserved; avoiding social contact.
Example
She is a quiet, retiring woman who avoids attention.
彼女は静かで内向的な女性で、注目を避ける。
C1 noun /ˈrɑːstər/

roster

リスト
Meaning
A list or plan showing people’s duties or times when they are scheduled.
Example
The manager updated the staff roster for next week.
マネージャーは来週のスタッフリストを更新しました。
C1 noun /ˌræm.ɪ.fɪˈkeɪ.ʃən/

ramification

結果
Meaning
a consequence of an action or event, often complex or unwelcome.
Example
The new law has serious social ramifications.
新しい法律には深刻な社会的影響があります。
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。
C1 adjective /riˈækʃəˌneri/

reactionary

反動的
Meaning
Opposing political or social progress or reform; extremely conservative.
Example
The group took a reactionary stance against the new policies.
グループは新しい政策に対して反動的な立場を取った。
C1 verb /ˈrɛlɪɡeɪt/

relegate

降格する
Meaning
to assign to a lower rank, position, or category
Example
The manager decided to relegate the player to the bench.
マネージャーは選手をベンチにレリゲートすることを決定しました。
C1 noun /ˈrɛl.ɪk/

relic

遺物
Meaning
an object surviving from an earlier time, often of historical or religious interest
Example
The museum displayed relics from the ancient civilization.
博物館には古代文明の遺物が展示されていました。
C1 verb /ˈrɛplɪkeɪt/

replicate

複製する
Meaning
to copy, reproduce, or duplicate something exactly
Example
The scientist tried to replicate the experiment for accuracy.
科学者は実験を正確に再現しようとしました。
C1 adjective ˈriːdʒən spəˈsɪfɪk

region-specific

地域特有
Meaning
Relating to or characteristic of a particular region or area.
Example
Climate change impacts are region-specific.
気候変動の影響は地域特有です。
C1 adjective /ˈrep.jə.tə.bəl/

Reputable

評判の良い
Meaning
having a good reputation; respected and trusted
Example
She works for a reputable law firm in the city.
彼女はその都市の評判の良い法律事務所で働いています。
C1 noun /ˈriːkɔːrs/

recourse

助け, 対処
Meaning
a source of help or protection in a difficult situation
Example
The students had no recourse but to appeal to the principal.
学生たちは校長に訴える以外に方法がなかった。
C1 verb /rɪˈsiːd/

recede

後退する
Meaning
To move back or further away from a previous position.
Example
The floodwaters began to recede after the heavy rain stopped.
激しい雨が止んだ後、洪水は後退し始めました。
C1 noun /ruːz/

Ruse

策略; 騙し
Meaning
an action intended to deceive someone; a trick or stratagem
Example
The thief used a clever ruse to distract the guard.
泥棒は警備員を惑わすために巧妙な策略を使った。
C1 adjective /rɪˈstreɪnd/

restrained

抑制された
Meaning
characterized by reserve or self-control; held back
Example
Her restrained reaction surprised everyone.
彼女の抑制された反応は皆を驚かせました。
C1 noun /ˌriːhəˌbɪlɪˈteɪʃən/

rehabilitation

幸福
Meaning
the process of restoring someone or something to health or normal life through training or therapy
Example
After the accident, he went through months of rehabilitation to walk again.
彼女は賞を受け取ったとき、自分の幸福を隠せなかった。
C1 noun /rɪˈspɒnsɪvnəs/

responsiveness

反応性
Meaning
The quality of reacting quickly and positively
Example
The manager appreciated her responsiveness to customer feedback.
マネージャーは彼女の顧客からのフィードバックに対する反応性を評価しました。
C1 noun /ˈroʊdənt/

rodent

齧歯類
Meaning
a small mammal such as a mouse, rat, or squirrel, characterized by constantly growing incisors
Example
The farmer set traps to catch the rodents in his barn.
農場主は納屋の中でロデントを捕まえるために罠を設置しました。
C1 noun /ˈrɛdʒɪmənt/

regiment

Meaning
A permanent unit of an army, typically commanded by a colonel and divided into several companies.
Example
The regiment marched proudly through the streets after returning from the mission.
C1 verb /rɪˈdʒɛnəreɪt/

regenerate

再生する
Meaning
to grow or produce again; to renew or restore
Example
The lizard can regenerate its lost tail.
トカゲは失われた尾を再生できます。
C1 adjective /rɪˈpliːt/

replete

満ちた
Meaning
Filled or well-supplied with something; abundantly full.
Example
The book is replete with fascinating historical details.
その本は魅力的な歴史的詳細で満ちています。
C1 noun/verb /rɪˈpoʊz/

repose

休息
Meaning
a state of rest, sleep, or tranquility; to rest or lie in a peaceful position
Example
After the long journey, she sought repose in the quiet garden.
長い旅の後、彼女は静かな庭で休息を求めた。
C1 verb /ˌriːˈkɒn.stɪ.tʃuːt/

reconstitute

再構成する
Meaning
to restore something to its original form or state; to reassemble
Example
The group was reconstituted after the leader returned.
リーダーが戻った後、グループは再構成されました。
C1 verb /rɪˈpʌls/

repulse

撃退する / 嫌悪感を引き起こす
Meaning
to drive back an attack or attacker by force; to cause intense dislike or disgust
Example
The army managed to repulse the enemy attack.
軍隊は敵の攻撃を撃退することに成功した。
C1 adjective /rɪˈvɜː.sə.bəl/

Reversible

可逆的な
Meaning
able to be turned the other way around; able to be undone or changed back
Example
This jacket is reversible and can be worn on both sides.
このジャケットはリバーシブルで、両面で着られます。
C1 noun /rɪft/

rift

亀裂
Meaning
a serious break in a relationship; a split or crack
Example
A rift developed between the two friends after the argument.
議論の後、二人の友達の間に亀裂が生じた。
C1 noun /rɪˈliːf treɪn/

Relief Train

救援列車
Meaning
a train that carries emergency supplies and aid to disaster-affected areas
Example
The relief train arrived with food and medical supplies for the flood victims.
救援列車は洪水の被害者のために食料と医療物資を運んできました。
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 /ˈriːpər/

reaper

作物を刈り取り集める人または機械
Meaning
a person or machine that cuts and gathers crops
Example
The reaper moved slowly through the golden fields.
リーパーは金色の畑をゆっくりと進んでいきました。
C1 noun /rʌk/

Ruck

押し合い; 混雑した人々
Meaning
a situation where a crowd of people are pushing against each other; a disorderly crowd
Example
There was a ruck at the football match.
サッカーの試合で押し合いがありました。
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。
C1 verb /ˈrʌm.ɪdʒ/

rummage

乱雑に探す
Meaning
to search through something in a disorderly way
Example
He rummaged through the drawer for his keys.
彼は引き出しの中を漁って鍵を探していた。
C1 adjective /ˈraʊzɪŋ/

rousing

興奮させる
Meaning
Exciting, inspiring, or stirring.
Example
The speaker delivered a rousing speech that moved the audience.
スピーカーは聴衆を感動させる興奮させるスピーチをしました。
C1 noun /rɪˈsaɪtər/

reciter

朗誦者
Meaning
a person who recites or repeats something aloud from memory, especially poetry, prayers, or formal texts
Example
The reciter delivered the poem with clarity and emotion.
朗誦者は明瞭さと感情を込めて詩を朗読した。
C1 adjective /ˈroʊtəri/

rotary

回転式
Meaning
Relating to or characterized by rotation; revolving around an axis.
Example
The machine uses a rotary engine to function efficiently.
その機械は効率的に動作するためにロータリーエンジンを使用しています。
C1 verb /riːˈpeɪ.tri.eɪt/

repatriate

帰還させる
Meaning
To return someone to their own country, often after war or imprisonment.
Example
The government worked to repatriate the refugees safely.
政府は難民を安全に帰国させるために尽力しました。
C1 verb /rænt/

rant

怒鳴る
Meaning
to speak or shout in an angry, uncontrolled way
Example
He ranted about the unfair treatment at work.
彼は仕事で不公平な扱いについて叫んでいました。
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 /ˈræʃənəlaɪz/

rationalize

合理化する
Meaning
to attempt to explain or justify behavior or decisions with logical reasons, even if they are not true or appropriate
Example
She tried to rationalize her lateness by blaming the traffic.
彼女は交通渋滞を責めて、遅刻を合理化しようとした。
C1 adjective /rɪˈsɜːrdʒənt/

resurgent

復活した
Meaning
Becoming strong, active, or popular again.
Example
The resurgent economy gave hope to many businesses.
復活した経済は多くのビジネスに希望を与えた。
C1 noun /ˌrɛs.ɪˈprɒs.ɪ.ti/

reciprocity

相互利益のために他の人と物を交換する行為
Meaning
The practice of exchanging things with others for mutual benefit.
Example
Business relationships thrive on reciprocity.
ビジネス関係は相互利益に依存しています。
C1 adjective /ˈrɛtɪsənt/

reticent

控えめ
Meaning
not revealing one's thoughts or feelings readily; reserved
Example
She was reticent about her personal life.
彼女は自分の個人的な生活について控えめでした。
C1 adjective /ˈræɡ.ɪd/

Ragged

ボロボロの; 破れた; ぼろぼろ
Meaning
torn; tattered; frayed; shabby
Example
The homeless man wore ragged clothes.
ホームレスの男はボロボロの服を着ていた。
C1 verb /ˈrævɪdʒ/

ravage

荒廃させる
Meaning
to cause severe and extensive damage or destruction
Example
The hurricane ravaged the coastal villages.
ハリケーンは沿岸の村を荒廃させた。
C1 noun /rɔ ˈtɜrmərɪk/

Raw Turmeric

生のターメリック
Meaning
fresh unprocessed root of the turmeric plant used as a spice and medicine
Example
Grate raw turmeric into the curry for authentic flavor.
カレーに生のターメリックをすりおろして、オーセンティックな風味を加えましょう。
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。
C1 verb /rɪˈlɛnt/

relent

譲歩する、柔らかくなる
Meaning
to become less severe, harsh, or strict
Example
After hours of begging, she finally relented.
何時間もの懇願の後、彼女はついに譲歩した。
C1 verb /raʊz/

rouse

目覚める
Meaning
To awaken from sleep or to stir into action.
Example
The loud alarm roused him from his deep sleep.
大きなアラームが彼を深い眠りから起こした。
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。
C1 noun /ˌræʃəˈnæl/

rationale

根本的な理由
Meaning
the underlying reason or explanation for something
Example
The rationale behind his decision was clearly explained.
彼の決断の背後にある理由は明確に説明されました。
C1 noun /rɪˈdʌn.dəns/

Redundance

冗長
Meaning
the state of being not or no longer needed or useful; superfluous repetition of information
Example
The document contained redundance that made it unnecessarily long.
その文書には冗長性が含まれており、不必要に長くなっていました。
C1 noun /ˈreɪ.biːz/

rabies

狂犬病
Meaning
A viral disease that causes inflammation of the brain in humans and other mammals, usually transmitted through animal bites.
Example
The dog was vaccinated against rabies.
犬は狂犬病のワクチンを接種しました。
C1 noun /ˈrɪpəl/

Ripple

波紋
Meaning
a small wave on the surface of water; a spreading effect or influence
Example
The stone created ripples across the calm pond.
石が静かな池に波紋を作った。
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。
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 verb /rɪˈdrɛs/

redress

是正する
Meaning
to set right, remedy, or compensate for a wrong or grievance
Example
The company promised to redress the complaints of its customers.
その会社は顧客の苦情を是正すると約束しました。
C1 noun /ˈruːbrɪk/

rubric

評価基準 / 指針
Meaning
A set of instructions, rules, or a heading in a document, often used for grading criteria.
Example
The teacher provided a grading rubric for the assignment.
教師は課題のための評価基準を提供しました。
C1 adjective /ˈriːɡəl/

regal

王室の
Meaning
Resembling or fit for a king; majestic or royal.
Example
The queen entered the hall with a regal presence.
女王は王室のような存在感でホールに入った。
C1 verb /ˌriːəˈdʒʌst/

readjust

再調整
Meaning
To change or move something again in order to achieve a better fit, condition, or balance.
Example
He readjusted the chair to make it more comfortable.
彼は椅子をもっと快適にするために再調整しました。
C1 noun /ˈrɛnɪˌɡeɪd/

renegade

裏切り者
Meaning
a person who deserts or betrays an organization, country, or principles
Example
He was labeled a renegade after leaving the party and criticizing its policies.
彼は党を離れ、その政策を批判した後、裏切り者と見なされた。
C1 verb /ˌriːˈkæst/

recast

再キャスティング
Meaning
To present or change something in a different form or style.
Example
The director decided to recast the role with a younger actor.
監督は役を若い俳優でリキャストすることに決めました。
C1 noun /rɪˈkɜr.əns/

Recurrence

再発
Meaning
the fact of something happening again; an instance of something happening again
Example
The doctor was concerned about the recurrence of the patient's symptoms.
医師は患者の症状の再発について懸念していました。
C1 noun /rɪˈflɛktər/

reflector

反射器
Meaning
A surface or device that reflects light, heat, or sound, often used to direct beams or improve visibility.
Example
The cyclist attached a red reflector to the back of his bike for safety.
自転車のライダーは安全のために自分の自転車の後ろに赤い反射器を取り付けました。
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 adjective /ˈrek.wɪ.zɪt/

Requisite

必要な; 必須の
Meaning
made necessary by particular circumstances; required
Example
Good communication skills are requisite for this job.
この仕事には良いコミュニケーションスキルが必要です。
C1 noun /rəˈpɪdəti/

rapidity

迅速さ
Meaning
The quality of moving or happening quickly; swiftness or speed.
Example
The rapidity of technological change is astonishing.
技術的な変化の速さは驚くべきものです。
C1 adjective /raɪf/

rife

蔓延している
Meaning
widespread or common, often in a negative sense
Example
Corruption was rife in the old government system.
腐敗は古い政府制度に蔓延していた。
C1 adjective /rɪˈdʒɛn.ə.rə.tɪv/

regenerative

再生的な
Meaning
Able to restore or renew damaged environments, soil, or resources.
Example
Regenerative farming improves soil health and biodiversity.
再生農業は土壌の健康と生物多様性を改善します。
C1 verb /ˈrʌf.l̩/

ruffle

Meaning
to disturb the smoothness of something; to annoy or upset someone
Example
The wind ruffled her hair.
C1 noun ˈrɛp.ə.twɑːr

repertoire

レパートリー
Meaning
A stock of plays, dances, or pieces that a company or a performer knows or is prepared to perform.
Example
The actor's repertoire includes both comedy and drama.
俳優のレパートリーにはコメディとドラマが含まれています。
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。
C1 adjective /rɪˈpen.tənt/

Repentant

後悔している; 反省している; 悔いている
Meaning
feeling or expressing sincere regret and remorse; sorry for one's actions
Example
The repentant thief returned the stolen money.
後悔している泥棒は盗んだお金を返しました。
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。
C1 noun /ˈrɒstrəm/

rostrum

演壇
Meaning
A raised platform for speakers, performers, or leaders.
Example
The politician delivered a speech from the rostrum.
政治家は演壇から演説を行いました。
C1 verb /ræsp/

rasp

Meaning
to speak in a rough, harsh voice or to scrape with a coarse sound
Example
He rasped out a warning before collapsing.
C1 adjective /ˈrɛzənənt/

resonant

響く
Meaning
Deep, clear, and continuing to sound or echo.
Example
The resonant voice of the speaker filled the hall.
スピーカーの響く声がホールに響き渡った。
C1 adjective /ˈraɪ.tʃəs/

Righteous

正義の; 公正な; 道徳的な
Meaning
morally right or justifiable; virtuous; having strong moral principles
Example
She felt righteous anger at the unfair treatment of workers.
彼女は労働者の不当な扱いに対して正義の怒りを感じました。
C1 verb /ˌrɛzəˈrɛkt/

resurrect

復活させる
Meaning
To bring back to life or revive something from the past.
Example
The director decided to resurrect the old play for a new audience.
監督は新しい観客のために古い劇を復活させることに決めました。
C1 noun /ˌrɛkwɪˈzɪʃən/

requisition

要求
Meaning
An official order laying claim to the use of property or materials; a formal demand or request.
Example
The manager submitted a requisition for new office supplies.
マネージャーは新しいオフィス用品のためのレクイジションを提出しました。
C1 noun /ˌrev.əˈluː.ʃən.ər.i ˈbreɪk.θruː/

revolutionary breakthrough

革命的な発見
Meaning
A sudden, dramatic, and important discovery or development that changes everything.
Example
Robotic surgery is a revolutionary breakthrough in healthcare.
ロボット手術は医療分野での革命的な発見です。
C1 noun /rɪˈkɒnɪsəns/

reconnaissance

偵察
Meaning
A survey or exploration, especially for military or strategic purposes.
Example
The soldiers conducted a reconnaissance of the enemy camp.
兵士たちは敵のキャンプの偵察を行った。
C1 verb /rɪˈtɑːrd/

retard

遅らせる / 減速する
Meaning
to delay or slow down the progress of something
Example
Lack of funds may retard the development of the project.
資金不足はプロジェクトの進展を遅らせる可能性があります。
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。
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。
C1 noun /ˈrep.lɪ.kə/

Replica

レプリカ
Meaning
an exact copy or model of something, especially one on a smaller scale
Example
The museum displayed a perfect replica of the ancient statue.
博物館は古代の彫像の完璧なレプリカを展示しました。
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。
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。
C1 verb /ˌriːɪnˈtɪɡreɪt/

reintegrate

再統合する
Meaning
To bring someone or something back into a group or society after being separated.
Example
The program helps prisoners reintegrate into society.
そのプログラムは囚人が社会に再統合するのを助けます。
C1 verb /rɪˈklaɪn/

recline

リクライニングする
Meaning
To lean or lie back in a relaxed position.
Example
She reclined on the sofa with a book.
彼女はソファで本を持ってリクライニングしていた。
C1 noun ˈrəʊvə

rover

ローバー
Meaning
A vehicle for driving over rough terrain, especially one driven by remote control over extraterrestrial terrain.
Example
The rover landed on Mars to begin its exploration.
ローバーは火星に着陸し、探査を開始しました。
C1 adjective /rɪˈdʌn.dənt/

redundant

冗長な
Meaning
Not or no longer needed or useful; superfluous.
Example
The report contained redundant information.
その報告書には冗長な情報が含まれていました。
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。
C1 noun /ˈrem.nənt/

Remnant

残留物
Meaning
a small remaining quantity of something; a piece of cloth left over after the main piece has been used
Example
Only a remnant of the ancient wall remains.
古代の壁の残り物だけが残っています。
C1 adjective /ˌrɛmɪˈnɪsənt/

reminiscent

思い出させる
Meaning
Tending to remind one of something; suggestive of something in the past.
Example
The smell of rain is reminiscent of my childhood in the village.
雨の匂いは私の村での子供時代を思い出させる。
C1 adjective /rɪˈvoʊltɪŋ/

revolting

むかつく
Meaning
extremely unpleasant or disgusting
Example
The smell of the garbage was revolting.
ごみのにおいはむかつくほどだった。
C1 verb /ˈrevəl/

revel

楽しむ
Meaning
to enjoy oneself in a lively and noisy way; to take great pleasure in
Example
They revel in their success.
彼らは成功を楽しんでいます。
C1 noun ˈrez.ɪ.djuːz

residues

残留物
Meaning
A small amount of something that remains after the main part has gone or been taken or used.
Example
The burning process leaves no harmful residues.
燃焼プロセスでは有害な残留物は残りません。
C1 noun ˈrɔɪəl ˈbɛŋɡəl ˈtaɪɡər

Royal Bengal Tiger

ロイヤルベンガルタイガー
Meaning
A subspecies of tiger found primarily in India and Bangladesh, known for its distinctive orange coat with black stripes.
Example
The Royal Bengal Tiger is an iconic species of the Sundarbans.
ロイヤルベンガルタイガーはスンダルバンスの象徴的な種です。
C1 noun /rʌsk/

Rusk

乾燥ビスケット; トーストパン
Meaning
a hard, dry biscuit or twice-baked bread; a type of crisp, sweet biscuit
Example
The baby enjoyed eating the soft rusk with milk.
赤ちゃんはミルクと一緒に柔らかいラスクを食べるのが好きでした。
C1 noun /ˌrɛpəˈreɪʃən/

reparation

賠償
Meaning
the making of amends for a wrong done by paying money or helping those who were wronged
Example
The government offered reparations to the victims of the conflict.
政府は紛争の被害者に賠償を提供しました。
C1 noun /ˈreɪ.vən/

Raven

ワタリガラス
Meaning
a large, black bird with a thick bill and harsh croaking voice
Example
The raven perched on the old oak tree and cawed loudly.
ワタリガラスが古いオークの木に止まり、大きな声で鳴いた。
C1 noun /ˈrɛvərəns/

reverence

尊敬
Meaning
deep respect for someone or something
Example
The students showed reverence to their teacher.
学生たちは先生に尊敬を示した。
C1 verb /rɪˈkɔɪl/

recoil

後退する
Meaning
To suddenly spring back in fear, horror, or from force such as a gun's kickback.
Example
She recoiled at the sight of the snake.
彼女はヘビを見て後退した。
C1 verb rɪˈpel

repel

反発する
Meaning
To push away or force apart due to similar charges or properties.
Example
Protons repel each other.
陽子はお互いに反発し合う。
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。
C1 adjective /ˌrɛprɪzɛnˈteɪʃənl̩/

representational

表現的
Meaning
Relating to or depicting something in a realistic or symbolic way.
Example
The artist preferred a representational style of painting.
アーティストは表現的な絵画スタイルを好んでいました。