C2 noun /ræŋˈɡuːn ˈkriːpər/

Rangoon creeper

ランゴーンクリーパー

Meaning

A climbing vine with fragrant flowers that change color from white to pink to red

Example

The Rangoon creeper covered the entire fence with its sweet-smelling flowers.

ランゴーンクリーパーはその甘い香りの花でフェンス全体を覆いました。

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。

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。

C1 noun /rɪˈtrækʃən/

retraction

撤回, 言明撤回

Meaning

the act of taking back a statement, promise, or belief

Example

The newspaper issued a retraction of the false report.

新聞は虚偽の報告の撤回を発表しました。

C2 noun /ˈræʃənəlɪzəm/

rationalism

合理主義

Meaning

a belief or theory that opinions and actions should be based on reason and knowledge rather than religious belief or emotion

Example

Rationalism emphasizes logic and reasoning over faith.

合理主義は信仰よりも論理と推論を強調します。

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。

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。

A2 noun /reɪt/

rate

レート

Meaning

the cost or price of something, or the amount at which something happens

Example

The rate of inflation is increasing every year.

インフレ率は毎年増加しています。

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。

B2 noun /ˈraɪvəlri/

Rivalry

ライバル関係; 競争

Meaning

competition for the same objective or for superiority in the same field; the state of being rivals

Example

The rivalry between the two teams made the match exciting.

二つのチーム間のライバル関係が試合を興奮させた。

C2 adjective /ˈreɪ.moʊs/

ramose

分岐した

Meaning

having many branches.

Example

The ramose tree shaded the entire garden.

その分岐した木は庭全体に日陰を提供しました。

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。

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。

B1 verb /ˈrɛdʒɪstər/

register

登録する

Meaning

To enter or record officially on a list or in a book.

Example

You must register for the conference before the deadline.

期限前に会議に登録する必要があります。

C1 noun /rɪdʒ/

ridge

山の稜線または頂上

Meaning

a long, narrow hilltop, mountain range, or raised strip

Example

We walked along the mountain ridge.

私たちは山脈の稜線に沿って歩きました。

C2 noun /rɪˈɡætə/

regatta

ボート競走

Meaning

A sporting event consisting of a series of boat or yacht races.

Example

The annual regatta attracted competitors from around the world.

毎年のレガッタは世界中から競技者を引き付けた。

A1 noun, verb /rɛst/

rest

Meaning

to cease work or movement in order to relax or recover strength

Example

He needs to rest after the long journey.

B2 noun ˈruθləs ˌkɑmpəˈtɪʃən

ruthless competition

容赦ない競争

Meaning

Fierce and merciless rivalry or contest, without pity or compassion.

Example

Ruthless competition for power leads to societal issues.

権力のための容赦ない競争は社会問題を引き起こします。

C1 verb /ˌriː.kənˈviːn/

reconvene

再開する

Meaning

to gather or assemble again, especially for a meeting

Example

The committee will reconvene after lunch.

委員会は昼食後に再開します。

C2 noun /rɪˈfrɪndʒənsi/

refringency

屈折率

Meaning

The ability of a substance to bend light; refractive power.

Example

Glass has a higher refringency than water.

ガラスは水よりも高いリフリンジェンシーを持っています。

C2 noun/adjective /rɪˈmɒnstrənt/

remonstrant

抗議者

Meaning

A person who makes a forceful protest (noun); protesting or objecting (adjective).

Example

He was a remonstrant voice in the assembly.

彼は集会で抗議の声を上げていた。

C2 verb /rɪˈkænt/

recant

撤回する

Meaning

to withdraw or renounce a statement or belief formally

Example

He recanted his previous statement in court.

彼は裁判で以前の発言を撤回しました。

C1 noun /ˈroʊz ˈwɔː.tər/

Rose-water

ローズウォーター

Meaning

a flavored water made by steeping rose petals in water, used in cooking and cosmetics

Example

She added a few drops of rose-water to the dessert.

彼女はデザートにローズウォーターを数滴加えました。

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。

A2 verb /roʊl/

roll

転がる

Meaning

to move by turning over and over on an axis

Example

She rolled the ball down the hill.

彼女はボールを丘の下に転がしました。

A1 noun, adjective, adverb /raɪt/

right

権利

Meaning

something that is morally good, fair, or just; or a legal/entitled claim

Example

Everyone has the right to free speech.

誰もが自由な言論の権利を持っています。

C2 adjective /ˈrɛkriənt/

recreant

臆病な, 裏切り者

Meaning

cowardly or unfaithful to duty

Example

The recreant soldier abandoned his post in fear.

その臆病な兵士は恐怖で自分のポストを放棄した。

B2 verb /rɪˈzɪst/

resist

抵抗する

Meaning

to oppose or fight against; to withstand

Example

He could not resist the temptation.

彼は誘惑に抵抗できませんでした。

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。

A2 noun rɪˈpɔːt

report

報告

Meaning

An account given of a particular matter, especially in the form of an official document after thorough investigation or consideration.

Example

The report highlights critical issues.

報告は重要な問題を浮き彫りにします。

B2 noun /ˌrek.riˈeɪ.ʃən/

Recreation

レクリエーション活動; 何かを再び存在させるプロセス

Meaning

an activity that is done for enjoyment; the process of making something exist again

Example

The park provides recreation facilities for children and adults.

公園は子供と大人のためにレクリエーション施設を提供しています。

B1 noun /ˈrɛntəl/

rental

レンタル

Meaning

an arrangement in which something is rented, or the amount paid for renting

Example

The car rental was more expensive than we expected.

レンタカーは予想より高かった。

C1 noun, adjective /ˈrɛvərənd/

reverend

牧師, 尊敬される

Meaning

A title of respect used for members of the clergy; deserving deep respect.

Example

The Reverend gave an inspiring sermon at the church.

レヴァレンドは教会で感動的な説教をしました。

A2 verb /rɪˈlæks/

relax

リラックスする

Meaning

to make or become less tense or anxious; to rest

Example

After a long day, she likes to relax with a good book.

長い一日の後で、彼女は良い本を持ってリラックスするのが好きです。

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。

A2 verb /rɪˈmuːv/

remove

削除する

Meaning

to take something away; to eliminate or delete

Example

Please remove your shoes before entering the house.

家に入る前に靴を脱いでください。

C1 noun /ˌrætɪfɪˈkeɪʃən/

Ratification

承認

Meaning

the action of signing or giving formal consent to a treaty, contract, or agreement

Example

The treaty required ratification by both countries' parliaments.

その条約は両国の議会による批准を必要とした。

A2 noun /ˈriː.zənz/

reasons

理由

Meaning

Causes, explanations, or justifications for an action or event.

Example

Reasons for pollution need addressing urgently.

汚染の理由は緊急に対処する必要があります。

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。

B1 verb /rɪˈdʒekt/

reject

拒否する

Meaning

to refuse to accept or consider something

Example

The committee decided to reject the proposal.

委員会は提案を拒否することに決めました。

B2 verb /rɪˈdʒɔɪs/

rejoice

喜ぶ

Meaning

to feel or show great joy; to celebrate

Example

The family rejoices at the good news.

その家族は良いニュースに喜んでいます。

C2 adjective /rɪˈfɛrəbəl/

referable

参照可能な

Meaning

able to be related or directed to something

Example

The issue is referable to the new policy changes.

その問題は新しい政策変更に関連付けることができます。

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。

B2 noun /ˌriː.əˈʃʊr.əns/

Reassurance

安心

Meaning

comfort or confidence given to someone to remove their fears or doubts

Example

She needed reassurance that everything would be okay.

彼女はすべてがうまくいくことを確認するために安心が必要でした。

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。

C2 noun /ˈrɛtɪnjuː/

retinue

従者

Meaning

A group of attendants or followers accompanying an important person.

Example

The king entered the hall followed by his retinue.

王は従者を引き連れてホールに入った。

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。

C1 noun/verb /ˈrɛprɪˌmænd/

reprimand

Meaning

A formal expression of disapproval; to scold or criticize someone officially.

Example

The teacher reprimanded the student for being late.

B1 noun ˈreɪn.fɒr.ɪst

rainforest

熱帯雨林

Meaning

A luxuriant, dense forest rich in biodiversity, found typically in tropical areas with consistently heavy rainfall.

Example

The Amazon rainforest is home to millions of species.

アマゾンの熱帯雨林は数百万種の生物の家です。

C1 adjective /ˌruː.dɪˈmen.tər.i/

Rudimentary

基本的な; 初歩的な; 未発達な; 発展の初期段階にある

Meaning

basic; elementary; undeveloped; in the earliest stage of development

Example

She has only rudimentary knowledge of French.

彼女はフランス語についての初歩的な知識しか持っていません。

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。

C1 verb /reɪv/

rave

絶賛する

Meaning

to speak or write about something with great enthusiasm or admiration

Example

Critics rave about the new movie.

批評家たちは新しい映画を絶賛しています。

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 /rɪˈpɛlənt/

repellent

忌避剤

Meaning

Able to drive away something, especially insects or unpleasant things; causing disgust or distaste.

Example

This cream is highly effective as a mosquito repellent.

このクリームは蚊除けとして非常に効果的です。

C1 noun ˌriː.pɚˈkʌʃ.ənz

repercussions

影響

Meaning

The unintended consequences or effects of an action or event.

Example

The new policy had unintended repercussions on the economy.

新しい政策は経済に予期しない影響を与えました。

C1 noun /rɪˈmɪʃən/

remission

Meaning

A temporary or permanent decrease or disappearance of disease symptoms; forgiveness of sins or debts.

Example

The patient’s cancer is in remission after the treatment.

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 noun/verb /rɪˈmɑːrk/

remark

発言

Meaning

something that is said; a comment

Example

She made a remark about the weather.

彼女は天気について発言した。

C1 noun /rɛnˈdɪʃən/

rendition

演奏

Meaning

a performance or interpretation of a piece of art, music, or text

Example

The singer gave a moving rendition of the classic song.

歌手はクラシックな歌の感動的な演奏を行いました。

C1 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。

A1 adjective /raʊnd/

round

丸い

Meaning

having a circular shape; shaped like a sphere or disk

Example

The table was round and had a smooth surface.

テーブルは丸くて、滑らかな表面がありました。

B2 noun ˈrɛvənuː

revenue

収益

Meaning

Income, especially when of a company or organization.

Example

The company's revenue grew by 10% this year.

会社の収益は今年10%増加しました。

B1 adjective rɪˈlaɪ.ə.bəl

reliable

信頼できる

Meaning

Consistently good in quality or performance; able to be trusted.

Example

Reliable systems ensure efficiency.

信頼できるシステムは効率を確保します。

B2 verb /reɪl/

rail

抗議する

Meaning

to complain or protest strongly about something

Example

He railed against the unfair decision.

彼は不公平な決定に対して強く抗議した。

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 /ˌrɛprɪˈhɛnsəbl̩/

reprehensible

非難すべき

Meaning

Deserving strong criticism or blame.

Example

His dishonest actions were truly reprehensible.

彼の不誠実な行動は本当に非難すべきものでした。

C2 verb /ˌrɛprɪˈhɛnd/

reprehend

非難する

Meaning

to express disapproval or criticism of someone or something

Example

The teacher reprehended the student for being dishonest.

先生は不正直なことで生徒を叱りました。

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。

C2 adjective /ˈrɛɡnənt/

regnant

統治している

Meaning

Reigning; currently holding power, authority, or dominance.

Example

The regnant queen introduced several reforms during her reign.

統治している女王は、彼女の統治期間中にいくつかの改革を導入しました。

C1 verb /ˌrekəˈlekt/

recollect

思い出す

Meaning

to remember something; to recall from memory

Example

I can't recollect where I put my keys.

鍵をどこに置いたか思い出せません。

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。

A1 adjective /ˈreɪ.di.əʊ/

radio

ラジオ

Meaning

Relating to radio waves or broadcasting.

Example

FAST is the largest radio telescope in the world.

FASTは世界最大のラジオ望遠鏡です。

B2 noun /ˈrʊki/

rookie

初心者

Meaning

a person who is new to an activity or organization; a beginner

Example

The rookie policeman made a few mistakes on his first day.

新米警官は初日にいくつかのミスを犯しました。

C2 noun /roʊˈtʌn.də.ti/

rotundity

円形

Meaning

the quality of being round or plump

Example

The rotundity of the balloon made it float gracefully.

風船の円形がそれを優雅に浮かせた。

A2 noun /ruːl/

rule

規則

Meaning

an accepted principle or instruction that states what is allowed or what must be done.

Example

There are strict rules about safety in the lab.

実験室には安全に関する厳しい規則があります。

B2 adjective ˌriːprəˈdʌktɪv

reproductive

繁殖に関する

Meaning

Relating to the reproduction of offspring.

Example

The reproductive cycle of pests can cause rapid infestations.

害虫の生殖サイクルは迅速な感染を引き起こす可能性があります。

B2 adjective /rɪˈlʌktənt/

Reluctant

消極的な; ためらう; 何かをすることに抵抗がある;

Meaning

unwilling; hesitant; disinclined to do something;

Example

She was reluctant to share her personal information.

彼女は個人情報を共有することに消極的でした。

A2 noun /ˈruːlər/

ruler

支配者; 定規

Meaning

A person who governs or controls a country; a straight-edged tool used for measuring or drawing lines

Example

The ruler drew a straight line on the paper while the king was a powerful ruler of his kingdom.

ルーラーは紙にまっすぐな線を引き、王は自分の王国の強力な支配者でした。

C1 noun /ˈrɛtɪsəns/

reticence

沈黙

Meaning

the quality of being reserved or unwilling to speak freely

Example

His reticence made it difficult to know what he was thinking.

彼の沈黙は、彼が何を考えているのかを知るのを難しくしました。

C1 verb /rɪˈtælieɪt/

retaliate

報復する

Meaning

to make an attack in return for a similar attack

Example

The army retaliated after the enemy attack.

軍隊は敵の攻撃の後、報復した。

C1 adjective /ˈrɔːkəs/

raucous

騒々しい, うるさい

Meaning

loud, harsh, and unpleasant sound or behavior

Example

The crowd became raucous after the team scored.

チームがゴールを決めると、群衆は騒がしくなった。

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 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。

A2 preposition /riː/

re

について

Meaning

concerning or about (used in formal letters or emails)

Example

The letter was sent re your recent application.

その手紙はあなたの最近の申請について送られました。

B2 noun /ˈrɪk.ʃɔː/

Rickshaw

リクシャ

Meaning

a light two-wheeled passenger vehicle drawn by one or more people

Example

We took a rickshaw to reach the busy marketplace.

忙しい市場に到着するためにリクシャを利用しました。

B2 adjective /ˈreɪʃəl/

racial

人種の

Meaning

relating to a race of people

Example

Racial equality is an important issue in many societies.

人種平等は多くの社会において重要な問題です。

B2 noun /rɪˈmuː.vəl/

Removal

撤去; 除去; 解雇;

Meaning

the action of taking something away or eliminating it; dismissal from office

Example

The removal of the old furniture took all day.

古い家具の除去に一日中かかりました。

B1 adjective /rʌf/

Rough

ざらざらした; 荒い; 厳しい

Meaning

having an uneven surface; not smooth; harsh

Example

The rough surface of the rock hurt my hands.

岩石のざらざらした表面が私の手を傷つけました。

B2 noun /rɪˈfreʃ.mənt/

Refreshment

軽食

Meaning

food and drink that is served as a light meal; something that refreshes

Example

We served light refreshments after the meeting.

会議の後、軽食を提供しました。

A2 noun, verb /ˈriːzən/

reason

理由、原因

Meaning

A cause, explanation, or justification for an action or event; to think or argue logically.

Example

There is no reason to be upset.

怒る理由はありません。

A2 noun /ˈroʊbɒt/

robot

ロボット

Meaning

a machine capable of carrying out a complex series of actions automatically

Example

The factory uses robots to assemble cars efficiently.

工場はロボットを使って効率的に車を組み立てています。

B1 noun /rɪsk/

Risk

リスク

Meaning

a situation involving exposure to danger; the possibility of something bad happening

Example

Taking this investment carries a high risk of losing money.

この投資には高いリスクが伴い、資金を失う可能性があります。

B2 noun /ˌrɛprɪzɛnˈteɪʃən/

representation

代表

Meaning

the action of speaking or acting on behalf of someone or something

Example

Her representation of the team was impeccable.

彼女のチームの代表は完璧でした。

B2 verb /ˌriːəˈʃʊr/

reassure

安心させる

Meaning

to say or do something to remove someone's doubts or fears

Example

The teacher reassured the students before the exam.

教師は試験前に生徒を安心させました。

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。

B2 verb /rɪˈvɜːs/

reverse

反転する

Meaning

to change something to the opposite direction, position, or result

Example

She quickly reversed the car out of the driveway.

彼女はすぐに車をドライブウェイからバックさせました。

C1 noun/verb /reɪn/

rein

Meaning

A strap used to control a horse; to control or guide something.

Example

The rider pulled the rein to stop the horse.

A2 verb /raɪz/

rise

上がる

Meaning

to move upward; to get up from bed; to increase

Example

The sun rises in the east.

太陽は東から昇ります。

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。

B1 noun riˈækʃən

reaction

反応

Meaning

An action performed or a feeling experienced in response to a situation or event.

Example

The arrests triggered a reaction.

逮捕は反応を引き起こしました。

C2 adjective /rɪˈfrɪndʒənt/

refringent

屈折性

Meaning

Capable of refracting light or other waves.

Example

The refringent properties of the crystal bent the light into a spectrum.

結晶の屈折性の特性は光をスペクトルに曲げました。

C1 noun /rɪˈdʒɪdəti/

Rigidity

剛性

Meaning

inability to bend or be forced out of shape; unwillingness to change or compromise

Example

The rigidity of the old system prevented any innovation.

古いシステムの剛性は、どんな革新も妨げました。

B2 adjective /rɪˈspek.tɪv/

Respective

それぞれの; 各自の

Meaning

belonging to each individual; particular to each

Example

The students returned to their respective classrooms after lunch.

学生たちは昼食後、それぞれの教室に戻った。

B2 noun /ˈrɒbər/

robber

強盗

Meaning

a person who steals property from others, often using force or threat

Example

The robber was caught after a quick police chase.

素早い警察の追跡の後、強盗は捕まった。

A2 adverb /ˈrɛɡjələrli/

regularly

定期的に

Meaning

at regular intervals; in a regular manner

Example

She exercises regularly to stay healthy.

彼女は健康を保つために定期的に運動します。

A2 verb riˈsaɪklɪŋ

recycling

リサイクリング

Meaning

The process of converting waste materials into new materials and objects to prevent waste.

Example

Recycling plastic helps in reducing waste.

プラスチックのリサイクリングは、廃棄物の削減に役立ちます。

C1 adjective /rɪˈtæl.i.ə.tɔːr.i/

retaliatory

報復的

Meaning

Taking action in response to another's action, characterized as punitive, revengeful, or counteractive.

Example

The country imposed retaliatory tariffs in response to trade sanctions.

その国は貿易制裁に対して報復的な関税を課しました。

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 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。

C2 adjective /rɪˈfræɡəbəl/

refragable

反論可能な

Meaning

Capable of being refuted or disproved.

Example

His argument was weak and easily refragable.

彼の議論は弱く、簡単に反論可能だった。

C2 noun /ˈrɛv.ər.i/

reverie

白昼の夢; 夢想

Meaning

A state of being pleasantly lost in one's thoughts; a daydream.

Example

Lost in reverie, he didn't hear his name being called.

夢想にふけっているため、彼は名前が呼ばれるのを聞かなかった。

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。

B2 adjective ˈræd.ɪ.kəl

radical

伝統的な信念やシステムに反する根本的な変化をもたらす能力がある

Meaning

Capable of bringing fundamental changes opposite to conventional beliefs or systems.

Example

The leader proposed radical economic reforms.

リーダーはラディカルな経済改革を提案しました。

B2 verb /ˌriː.ɪnˈfɔːrs/

reinforce

強化する

Meaning

To strengthen or support something with additional material, people, or effort.

Example

The teacher used examples to reinforce the lesson.

教師は例を使って授業を強化しました。

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 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/verb /rɪˈpriːz/

reprise

繰り返し

Meaning

A repetition or return to an earlier theme, role, or action.

Example

The actor reprised his role in the sequel.

俳優は続編で自分の役を再演しました。

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。

C2 noun /ˌrɛprɪˈhɛnʃən/

reprehension

叱責

Meaning

The act of rebuking or criticizing severely.

Example

The teacher’s reprehension of the student’s behavior was justified.

教師の学生の行動に対する叱責は正当であった。

C1 noun /ˈræftər/

rafter

小屋の梁

Meaning

One of the sloping beams that supports a roof.

Example

The old barn’s rafters were exposed.

古い納屋の小屋の梁がむき出しになっていました。

B1 noun /rɪˈleɪ.ʃən/

Relation

関係; 親戚

Meaning

the way in which two or more people or things are connected; a family member

Example

They have a strong business relation that has lasted for years.

彼らは長年続く強力なビジネス関係を持っています。