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。

C2 verb /ˈrævɪʃ/

ravish

魅了する

Meaning

To fill with intense delight; to captivate or enchant.

Example

The beauty of the sunset ravished the travelers.

夕日の美しさが旅行者を魅了した。

B1 noun /rɪˈtaɪə.mənt/

Retirement

退職

Meaning

the action or fact of leaving one's job and ceasing to work; the period of life after leaving work

Example

He is planning his retirement after 40 years of service.

彼は40年間の勤務の後、退職を計画しています。

A2 noun /rɪˈzʌlt/

result

結果

Meaning

a consequence, effect, or outcome of something

Example

The result of the test was excellent.

テストの結果は素晴らしかった。

B2 adjective /ˈrɒt.ən/

Rotten

腐った; 悪い

Meaning

decayed; spoiled; bad

Example

The apple is rotten and should be thrown away.

リンゴは腐っていて、捨てるべきです。

C1 verb /ˌrevəˈluːʃənaɪz/

revolutionize

革命的に変える

Meaning

Change (something) radically or fundamentally.

Example

Artificial intelligence is set to revolutionize the healthcare sector.

人工知能は医療分野を革命化する準備ができています。

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 verb /rɪˈsʌsɪteɪt/

resuscitate

Meaning

to revive someone from unconsciousness or apparent death

Example

The doctors tried to resuscitate the patient after the heart attack.

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。

C2 adjective /rəˈʃɛrʃ/

recherche

希少

Meaning

Rare, exotic, or obscure, often in a sophisticated or refined way.

Example

The gallery displayed many recherche artworks from unknown artists.

ギャラリーは、未知のアーティストによる多くの希少なアート作品を展示しました。

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。

B2 adjective /ˈrɑː.ki/

Rocky

岩だらけの; 不安定な; 難しい

Meaning

full of rocks; unsteady; difficult

Example

The rocky path made hiking difficult for the tourists.

岩だらけの道は観光客のハイキングを難しくしました。

B2 noun /ˈreɪʃoʊ/

ratio

比率

Meaning

a relationship between two numbers showing how many times the first number contains the second

Example

The ratio of boys to girls in the class is 2:1.

クラスでの男の子と女の子の比率は2:1です。

B2 adjective /rɪˈnjuː.ə.bəl/

renewable

再生可能

Meaning

Able to be renewed or replaced naturally; not depleted when used.

Example

Renewable resources minimize environmental damage.

再生可能な資源は環境へのダメージを最小限に抑えます。

A2 adjective /riːl/

Real

本物の; 真正の; 偽物ではない

Meaning

actually existing; genuine; not imaginary or fake

Example

This is a real diamond, not a fake one.

これは本物のダイヤモンドです。偽物ではありません。

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。

B2 noun /ˌreɡ.jʊˈlær.ɪ.ti/

Regularity

規則正しさ

Meaning

the quality of being regular; occurring at fixed intervals or in a consistent pattern

Example

The regularity of his exercise routine helped him stay healthy.

彼の運動習慣の規則正しさが健康を維持するのに役立ちました。

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。

C1 adjective /ˈroʊ.ɡɪʃ/

Roguish

いたずらな; 狡猾な

Meaning

mischievous; playfully dishonest

Example

His roguish smile suggested he was up to some mischief.

彼のいたずらな笑顔は、彼が何かいたずらを仕掛けていることを示唆していました。

C1 noun rɪˌkuːpərˈeɪʃən

recuperation

回復

Meaning

The process of gradually recovering from illness or fatigue

Example

Rest is essential for recuperation after illness.

病気からの回復には休息が不可欠です。

B2 noun /ˈrækɪt/

racket

ラケット / 騒音

Meaning

A piece of equipment used to hit the ball in sports like tennis or badminton; also a loud noise or an illegal scheme.

Example

He bought a new tennis racket for the match.

彼は試合のために新しいテニスラケットを買った。

C2 adjective /ˈruːbɪkənd/

rubicund

健康的な赤みを帯びた顔

Meaning

Having a healthy reddish complexion.

Example

The old man’s rubicund face showed he was in good health.

その老人の赤みを帯びた顔は、彼が健康であることを示していた。

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 noun /ˈreɪtɪŋ/

rating

評価

Meaning

an evaluation or assessment, usually numerical

Example

The movie received a high rating from critics.

その映画は批評家から高い評価を受けました。

B1 noun /rɪˈvɪʒ.ən/

Revision

リビジョン; 修正版

Meaning

the action of revising; a revised edition or form of something; review of subject matter

Example

The students spent hours doing revision for their final exams.

学生たちは最終試験のために数時間リビジョンを行った。

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。

C2 noun /rɪˈkwaɪtəl/

requital

報復

Meaning

The act of returning something, such as a favor, service, or punishment; repayment or retaliation.

Example

She offered her time in requital for his kindness.

彼女は彼の親切に報復として自分の時間を提供しました。

B1 adjective /rɪˈdɪk.jə.ləs/

Ridiculous

馬鹿げた; ばかばかしい; 不合理な

Meaning

extremely silly or unreasonable; deserving or causing laughter

Example

The idea of building a house without tools is ridiculous.

道具なしで家を建てるアイデアは馬鹿げている。

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。

C1 adjective, noun /rɪˈsiːvəbl/

receivable

回収可能

Meaning

Money that is owed to a company and is expected to be paid.

Example

The company's receivables increased significantly this quarter.

会社の売掛金は今四半期に大幅に増加しました。

C1 verb /rɪˈvɪər/

revere

尊敬する

Meaning

To deeply respect or admire someone or something.

Example

The students revered their teacher for his wisdom.

生徒たちはその知恵に対して教師を崇敬しました。

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。

B1 noun rɪˈzɪs.təns

resistance

抵抗

Meaning

The refusal to accept or comply with something; the attempt to prevent something by action or argument.

Example

The resistance fought bravely against colonial forces.

レジスタンスは植民地軍に勇敢に立ち向かいました。

C1 adjective /rɪˈɡrɛtfəl/

regretful

後悔している

Meaning

feeling or showing sadness or disappointment about something that has happened or been done

Example

She gave him a regretful smile as she turned away.

彼女は振り返りながら後悔している笑顔を彼に向けた。

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 /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 verb /ˌriːˈkæl.ɪ.breɪt/

recalibrate

再調整する, 調整し直す

Meaning

To calibrate again or differently; to adjust or correct something based on new information or changed circumstances.

Example

The company had to recalibrate its strategies to adapt to the market.

会社は市場に適応するために戦略を再調整する必要があった。

C2 adjective /rɪˈprɛsəbl̩/

repressible

抑制可能

Meaning

Capable of being restrained or suppressed.

Example

The movement proved to be hardly repressible.

その運動はほとんど抑制可能であることが証明されました。

B1 verb /rɪˈfɜː/

refer

参照する

Meaning

to mention or allude to something; to direct someone to a source of information

Example

Please refer to page 45 for more details.

詳細については、ページ45をご参照ください。

A2 noun /ruːlz/

rules

ルール

Meaning

explicit principles or regulations governing conduct or procedure within a particular area of activity

Example

The teacher reminded the students to follow the classroom rules.

先生は生徒にクラスのルールに従うように注意しました。

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 adjective /rɪˈvenʒ.fəl/

Revengeful

復讐心に燃える

Meaning

seeking or desiring revenge; vindictive

Example

He became revengeful after being betrayed by his friend.

彼は友達に裏切られた後、復讐心に燃えるようになった。

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。

B2 noun /ˈraɪvəl/

Rival

ライバル; 競争相手;

Meaning

a person or thing competing with another for the same objective or for superiority in the same field

Example

The two companies have been business rivals for decades.

二つの企業は何十年もの間、商業上のライバルです。

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 noun riˈæləti

reality

現実

Meaning

The world or the state of things as they actually exist, as opposed to an idealistic or notional idea.

Example

The reality of the situation was evident.

状況の現実は明らかでした。

B2 adjective /ˌrez.ɪˈden.ʃəl/

residential

住宅の

Meaning

Designed for people to live in.

Example

The institution was fully residential.

その施設は完全に住宅のものでした。

B2 adjective /ˈrest.ləs/

Restless

落ち着きのない

Meaning

unable to rest or relax; constantly moving or fidgeting

Example

The child was restless during the long car journey.

長い車の旅で子供は落ち着きがなかった。

C1 noun /rɪˈsaɪtl/

recital

リサイタル

Meaning

A performance of music, dance, or poetry, usually by a soloist.

Example

She gave a piano recital at the concert hall.

彼女はコンサートホールでピアノのリサイタルを行いました。

B2 noun /rɪˈmeɪnz/

remains

遺物

Meaning

the parts, pieces, or substances that are left after the rest has been used or removed

Example

The remains of the meal were left on the table.

食事の残り物はテーブルに残されていた。

C1 noun rɪˈdɛmpʃən

redemption

贖い

Meaning

The action of saving or being saved from sin, error, or evil.

Example

The story highlights the theme of redemption.

その物語は償いのテーマを強調しています。

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。

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。

C2 adjective /rɪˈtɪkjʊlət/

reticulate

網状

Meaning

Having a net-like pattern or structure.

Example

The leaf had a reticulate pattern of veins.

葉は網目模様の静脈がありました。

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。

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。

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 /rɪˈfreʃ/

refresh

リフレッシュする

Meaning

to make fresh again; to restore energy

Example

A cold drink refreshes me on hot days.

暑い日には冷たい飲み物が私をリフレッシュさせます。

B1 noun rəʊlz

Roles

役割

Meaning

A person's or thing's function in a particular situation.

Example

Defined roles improve team performance.

定義された役割はチームのパフォーマンスを向上させる。

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 /rɪˈzaɪd/

reside

住む

Meaning

to live or dwell in a particular place

Example

They reside in a large house near the river.

彼らは川の近くの大きな家に住んでいます。

B2 verb /ˈraɪpən/

ripen

幸せ

Meaning

to become or make something ready to eat or fully developed

Example

The bananas ripened quickly in the warm weather.

彼女は賞を受け取ったとき、幸せを隠せなかった。

B2 adverb /ˈraɪtli/

Rightly

正しく; 適切に; 公正に

Meaning

correctly; properly; justly

Example

She rightly pointed out the mistakes in the report.

彼女は報告書の誤りを正しく指摘した。

C2 noun /rɪˈpæst/

repast

食事

Meaning

A meal or the food eaten during a meal.

Example

They enjoyed a delicious repast by the riverside.

彼らは川辺で美味しい食事を楽しんだ。

C2 verb /rɛnd/

rend

引き裂く

Meaning

to tear something apart violently or forcefully

Example

The explosion rent the air with a deafening noise.

爆発は耳をつんざくような音で空気を引き裂いた。

B2 verb rɪˈstɔːr

restore

復元する

Meaning

To bring back to a former or original state; to reinstate.

Example

Restoring the tradition of student politics is necessary.

学生政治の伝統を復元することが必要です。

B2 adjective /ræʃ/

rash

軽率, 無謀

Meaning

Acting quickly without careful consideration; reckless.

Example

It was a rash decision to invest without research.

調査なしで投資するのは無謀な決断だった。

B1 noun /roʊˈmæns/

Romance

ロマンス

Meaning

a feeling of excitement and mystery associated with love; a love affair or relationship

Example

Their romance began when they met at the university library.

彼らの恋愛は、大学の図書館で出会ったときに始まった。

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。

B2 verb /ˈrʌm.bəl/

rumble

幸せ

Meaning

to make a continuous deep, resonant sound

Example

Thunder rumbled in the distance.

彼女は賞を受け取ったとき、自分の幸せを隠すことができませんでした。

B1 adjective /ˈrel.ə.tɪv/

Relative

相対的

Meaning

considered in comparison to something else; not absolute; comparative

Example

The cost of living is relative to your income level.

生活費はあなたの収入レベルに対して相対的です。

B2 noun /ˈrɛzərvwɑːr/

reservoir

貯水池

Meaning

A large natural or artificial lake used as a source of water supply.

Example

The city built a new reservoir to ensure enough drinking water for its residents.

その都市は住民に十分な飲料水を確保するために新しい貯水池を建設した。

B1 adjective /rɪˈmɑːrkəbl/

Remarkable

注目すべき; 非凡な; 顕著な;

Meaning

worthy of attention; extraordinary; notable;

Example

His recovery from the illness was remarkable.

病気から回復することは注目すべきことでした。

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。

B1 noun /ˈrɛzɪdəns/

residence

レジデンス

Meaning

a place where someone lives; a home or dwelling

Example

He recently moved to a new residence near the city center.

彼は最近、市内中心部近くの新しいレジデンスに引っ越しました。

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 adjective /rɪˈfjuː.tə.bəl/

Refutable

反証可能

Meaning

capable of being proven wrong or false; able to be disproved

Example

His theory was refutable because it could be tested experimentally.

彼の理論は実験的にテストできるので反証可能でした。

C2 noun /rɪˈpruːf/

reproof

叱責, 非難

Meaning

An expression of blame or disapproval.

Example

His careless words drew a sharp reproof from his mother.

彼の不注意な言葉は、母親からの厳しい叱責を引き起こした。

C1 adverb /rɪˈspek.tə.bli/

Respectably

敬意を表して; きちんと;

Meaning

in a way that is worthy of respect; decently; properly

Example

She was dressed respectably for the interview.

彼女は面接のためにきちんとした服装をしていた。

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。

C2 noun /ˌriːkəˌpɪtjʊˈleɪʃən/

recapitulation

要約

Meaning

The act of summarizing or repeating the main points of something.

Example

The professor gave a brief recapitulation of the lecture before ending the class.

教授はクラスを終える前に講義の簡単な要約を行いました。

B1 verb /rɪˈɡɑːrd/

regard

考える

Meaning

to consider or think of in a particular way; to look at

Example

She regards him as her best friend.

彼女は彼を親友として考えている。

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 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。

C2 adjective rɪˈtɛn.tɪv

retentive

記憶力が強い

Meaning

Having strong memory or the ability to retain information for a long time.

Example

Students with a retentive memory excel in academics.

記憶力が強い学生は学業で優れています。

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 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。

A2 noun, verb /raʊ/ (argument), /roʊ/ (line of things)

row

列 / 争い

Meaning

A line of things or people; also, a noisy quarrel; to propel a boat with oars.

Example

They had a loud row about money.

彼らはお金について大声で争いました。

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。

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。

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 /rɪˈpoʊst/

riposte

鋭い返答

Meaning

a quick and clever reply to criticism or an insult

Example

Her sharp riposte left everyone in silence.

彼女の鋭い返答は皆を黙らせた。

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。

B2 verb /rɪˈfaɪn/

refine

洗練する

Meaning

to improve by making small changes; to purify

Example

The chef refines the recipe to perfection.

シェフはレシピを完璧に洗練します。

B2 adjective /rɪˈsɔːrsfəl/

resourceful

Meaning

Having the ability to find quick and clever ways to overcome difficulties.

Example

She is very resourceful when it comes to solving unexpected problems.

B2 verb /ˈreɪn.dʒɪŋ/

ranging

変動する

Meaning

Extending or varying between limits.

Example

The temperatures are ranging from 15 to 30 degrees this week.

今週の気温は15度から30度の間で変動しています。

C1 noun /ˌrɛfjʊˈteɪʃən/

refutation

反証

Meaning

The act of proving a statement or argument to be false or incorrect.

Example

Her essay was a strong refutation of the opposing theory.

彼女のエッセイは反対の理論に対する強い反証でした。

A2 adverb /ˈriː.sənt.li/

Recently

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 ˈrɛstɪŋ pleɪs

resting place

安息地

Meaning

A place where someone or something rests, especially a burial site.

Example

The resting place of the martyrs is near the river.

殉教者の安息地は川の近くにあります。

C2 noun /ˈrɛk.tɪ.tjuːd/

rectitude

誠実

Meaning

Morally correct behavior or thinking; righteousness and integrity.

Example

His rectitude earned him respect in society.

彼の誠実さは社会で尊敬を得た。

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。

B2 adjective /ˈræʃ.ən.əl/

Rational

合理的な; 論理的な; 理にかなった

Meaning

based on reason and logic; sensible and practical

Example

She made a rational decision based on the available facts.

彼女は利用可能な事実に基づいて合理的な決定を下しました。

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, verb /ˈrætəl/

rattle

ガタガタ鳴る；ガラガラ

Meaning

to make a rapid series of short, sharp sounds; a device or object that makes such a sound

Example

The loose window began to rattle in the strong wind.

強い風で緩んだ窓がガタガタ鳴り始めた。

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。

A2 noun /roʊl/

role

役割

Meaning

a part or function of something

Example

Her role in the project was crucial.

彼女のプロジェクトでの役割は重要でした。

B2 adjective /ˈruː.mi/

Roomy

広々とした; 広いスペースのある

Meaning

spacious; having a lot of room

Example

The apartment is very roomy with spacious bedrooms.

アパートメントは広々としており、広いベッドルームがあります。

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 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。

B1 noun /ˈreɪn.boʊ/

Rainbow

虹

Meaning

an arch of colors formed in the sky by sunlight shining through rain

Example

After the storm, a beautiful rainbow appeared in the sky.

嵐の後、空に美しい虹が現れました。

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 /ˈrɛkənˌdaɪt/ or /ˈrɛkəndaɪt/

recondite

ほとんど知られていない、または理解しにくい

Meaning

Little known or difficult to understand.

Example

The professor’s lecture was full of recondite theories.

教授の講義は難解な理論で満ちていた。

A1 adjective /red/

Red

赤

Meaning

having the color of blood or fire; of the color red

Example

She wore a beautiful red dress to the party.

彼女はパーティーに美しい赤いドレスを着ていた。

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 /rɪˈlʌk.təns/

Reluctance

嫌悪感; ためらい

Meaning

unwillingness to do something; hesitation

Example

He showed reluctance to accept the job offer.

彼は仕事のオファーを受け入れることに嫌悪感を示した。

A2 noun /ræt/

Rat

ネズミ

Meaning

a large long-tailed rodent that is typically considered a pest

Example

The rat scurried across the kitchen floor.

ネズミは台所の床を走り抜けました。

C1 adjective /ˈreɪ.kɪʃ/

Rakish

魅力的な

Meaning

having a dashing, jaunty, or slightly disreputable quality or appearance

Example

He wore his hat at a rakish angle that gave him a charming appearance.

彼は魅力的な角度で帽子をかぶって、魅力的な外見を与えた。

C2 adjective /ˈrɛpərəbəl/

reparable

修理可能

Meaning

able to be repaired or fixed

Example

The damage to the car was serious but still reparable.

車の損傷は深刻だったが、それでも修理可能だった。

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。