C1 adjective /ˈræspi/

raspy

ハスキー

Meaning

having a harsh, rough, or grating sound

Example

His raspy voice revealed years of smoking.

彼のハスキーな声は喫煙の年数を明らかにした。

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 /rɪˈpʌɡ.nənt/

Repugnant

嫌悪感を引き起こす; 嫌な; 不快な

Meaning

extremely distasteful; unacceptable; causing disgust or strong dislike

Example

The idea of lying to his parents was repugnant to him.

両親に嘘をつくという考えは彼にとって嫌悪感を抱かせた。

C2 noun /raɪm/

rime

霜

Meaning

frost formed on cold surfaces by freezing water vapor

Example

The trees were covered with a white rime after the cold night.

木々は冷たい夜の後、白い霜で覆われていました。

C1 verb /riːl/

reel

つまずく / 巻き取る

Meaning

to lose balance and stagger; to wind or spin something onto a reel

Example

He reeled backward after being punched.

彼は殴られた後、後ろに転んだ。

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。

B1 noun, verb /ˈrɒkɪt/

rocket

幸せ

Meaning

a missile or vehicle propelled by a rocket engine; to increase or move very quickly

Example

The company’s profits rocketed after the new product launch.

彼女は賞を受け取ったとき、幸せを隠せませんでした。

B2 noun /ˈrɔɪəlti/

royalty

王族 / ロイヤリティ (著者の収入)

Meaning

Members of a royal family or payment made to the owner of a patent, copyright, or natural resource.

Example

The author receives a royalty for every book sold.

著者は売れた本ごとにロイヤリティを受け取ります。

B1 noun /rɪˈzɔː.sɪz/

resources

資源

Meaning

A stock or supply of money, materials, staff, and other assets.

Example

The region was rich in herbal resources.

その地域は薬草の資源が豊富でした。

B1 noun rɪˈsɜː.tʃəz

researchers

研究者

Meaning

People who study and investigate to discover new information or facts.

Example

Researchers are working on innovative solutions.

研究者たちは革新的な解決策に取り組んでいます。

C1 adjective /ˈraɪtfəl/

rightful

正当な

Meaning

having a legitimate or just claim; proper or lawful

Example

She is the rightful owner of the property.

彼女はその財産の正当な所有者です。

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 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。

A1 noun /reɪn/

Rain

雨

Meaning

water that falls from clouds in small drops

Example

The heavy rain forced us to stay indoors.

強い雨が私たちを屋内に閉じ込めました。

B2 verb /ˈrɛkən/

reckon

推測する

Meaning

To think, believe, or expect something; to calculate or estimate.

Example

I reckon it will rain later today.

今日は後で雨が降るだろうと思います。

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。

B1 noun /rɪˈɡret/

Regret

後悔

Meaning

a feeling of sadness or disappointment about something that has happened or been done

Example

She felt deep regret about her harsh words.

彼女は自分の辛辣な言葉に深い後悔を感じていました。

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。

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 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。

C1 verb /rɪˈɡrɛs/

regress

Meaning

To return to a former or less developed state.

Example

Without proper guidance, the child's progress began to regress.

B2 noun /rɪˈvendʒ/

Revenge

復讐

Meaning

the action of inflicting hurt or harm on someone for an injury or wrong suffered at their hands

Example

She sought revenge against those who betrayed her trust.

彼女は信頼を裏切った者たちに復讐を求めた。

B1 noun /ˈref.ər.əns/

Reference

参考文献

Meaning

the action of mentioning or alluding to something; a source of information

Example

Please provide references to support your research claims.

研究の主張を支持するために参考文献を提供してください。

B1 noun /ruːt/

Root

根; 起源; 基本原因; ルート

Meaning

the part of a plant that grows underground; the basic cause, source, or origin of something

Example

We need to find the root of this problem to solve it permanently.

この問題の根本原因を見つけて、永続的に解決する必要があります。

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 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 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。

B1 noun /rɪˈkʌvəri/

recovery

回復

Meaning

the process of recovering or returning to a normal state

Example

The patient is in recovery after the surgery.

患者は手術後、回復中です。

C1 verb /rɪˈzaʊnd/

resound

反響する

Meaning

To fill a place with sound; to be celebrated or talked about widely.

Example

The hall resounded with applause.

ホールは拍手で反響しました。

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。

C2 noun /ˈræŋ.kər/

rancor

憎しみ

Meaning

A feeling of deep and bitter anger or resentment.

Example

There was a rancor between the two rivals that never faded.

二人のライバルの間には、決して消えることのない憎しみがあった。

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。

C2 noun /ˌræproʊʃˈmɑːn/

rapprochement

関係修復

Meaning

The establishment or resumption of harmonious relations.

Example

The two countries signed an agreement that marked a new rapprochement.

二国は新しい関係修復を示す合意書に署名した。

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 noun /rɪˈpleɪsmənt/

replacement

交換

Meaning

the act of substituting one thing or person for another

Example

She got a replacement for her damaged phone.

彼女は壊れた電話の交換を受けました。

B2 verb /rɪˈtriːt/

retreat

撤退する

Meaning

to move back or withdraw from a position or situation

Example

The soldiers had to retreat after losing the battle.

兵士たちは戦いに負けた後、撤退しなければならなかった。

B1 noun /rɪˈspɒns/

Response

反応; 応答

Meaning

a reaction to something; an answer or reply; the way in which something reacts to external stimulus

Example

The government's response to the crisis was swift and decisive.

政府の危機への反応は迅速で決定的でした。

B2 noun ˌriːfɔːˈreɪʃən

reforestation

再植林

Meaning

The natural or intentional restocking of existing forests and woodlands that have been depleted.

Example

Reforestation efforts are crucial to restoring ecosystems.

再植林の努力は、生態系の回復に重要です。

C1 adjective /ˈrɪvɪtɪŋ/

riveting

魅力的な

Meaning

extremely interesting; holding the complete attention

Example

The movie was so riveting that nobody looked away.

その映画はとても魅力的で、誰も目を離すことができませんでした。

B2 noun /ˈrɪdəl/

Riddle

謎

Meaning

a question or statement intentionally phrased so as to require ingenuity in ascertaining its answer or meaning; a puzzle

Example

The ancient riddle stumped all the scholars for years.

その古代の謎は何年もの間、すべての学者を困らせました。

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。

B1 noun /rɪˈwɔːd/

reward

報酬

Meaning

something given in recognition of service, effort, or achievement

Example

He received a reward for returning the lost wallet.

彼は失くした財布を返したことで報酬を受け取りました。

C2 noun /ˈrɪp.lɪt/

ripplet

小さな波

Meaning

a small or tiny ripple

Example

Tiny ripplets appeared on the lake as the fish moved.

魚が動くと湖に小さな波が現れました。

C1 noun /rɪˈspɒndənt/

respondent

回答者

Meaning

A person who replies to something, especially in a survey or legal case

Example

The survey had over 1,000 respondents.

調査には1000人以上の回答者がいました。

C2 verb /rɪˈspaɪər/

respire

呼吸する

Meaning

To breathe in and out; to inhale and exhale.

Example

Plants also respire to release energy.

植物もエネルギーを放出するために呼吸します。

B2 adverb /rɪˈlʌk.tənt.li/

Reluctantly

いやいや

Meaning

in an unwilling manner; with hesitation or resistance

Example

She reluctantly agreed to help with the project.

彼女はプロジェクトを手伝うことに渋々同意した。

B2 adjective /ˈrɪtʃ.u.əl/

Ritual

儀式

Meaning

relating to religious or ceremonial practices

Example

The wedding ceremony included many traditional ritual elements.

結婚式では多くの伝統的な儀式が行われました。

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。

B2 adjective /ˈrɪɡ.ər.əs/

rigorous

厳格な

Meaning

Extremely thorough and demanding in analysis or practice.

Example

A rigorous study plan helps students achieve better results.

厳格な学習計画は、学生がより良い結果を得るのに役立ちます。

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。

A2 verb /ˌrɛkəˈmɛnd/

recommend

勧める

Meaning

to suggest or advise something as being good or suitable

Example

I recommend trying the new restaurant downtown.

私はダウンタウンの新しいレストランを試すことをリコメンドします。

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。

A2 verb /riːˈsaɪ.kəl/

recycle

リサイクル

Meaning

to process used materials so they can be used again instead of being thrown away

Example

We should recycle paper and plastic to reduce waste.

私たちは廃棄物を減らすために紙とプラスチックをリサイクルするべきです。

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。

B1 noun rɪˌspɒnsəˈbɪlɪti

responsibility

責任

Meaning

The state or fact of having a duty to deal with something or of having control over someone.

Example

Taking responsibility for one's actions is a sign of maturity.

自分の行動に責任を持つことは、成熟の証です。

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。

B2 noun /rɪˈstrɪk.ʃən/

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 noun /ræntʃ/

ranch

牧場

Meaning

a large farm where animals such as cattle or sheep are raised

Example

They own a huge cattle ranch in Texas.

彼らはテキサスで巨大な牧場を所有しています。

B2 noun/verb /ræft/

raft

筏

Meaning

A flat structure made of logs or planks tied together, used as a boat or floating platform; to travel or transport on such a structure.

Example

They built a raft to cross the river.

彼らは川を渡るために筏を作った。

C1 verb /rɪˈpjuː.di.eɪt/

repudiate

否定する

Meaning

to refuse to accept, recognize, or support something

Example

He repudiated the claim that he was involved in the scandal.

彼はそのスキャンダルに関与していたという主張を否定しました。

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。

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。

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 rɪsk ˈfæktər

risk factor

リスク要因

Meaning

Something that increases the likelihood of developing a disease or condition

Example

Water pollution is a significant risk factor for health.

水質汚染は健康にとって重要なリスク要因です。

C1 verb /rɪˈsɪprəˌkeɪt/

reciprocate

応答する

Meaning

To respond to an action or gesture by making a corresponding one.

Example

She smiled at him, and he reciprocated with a warm hug.

彼女は彼に微笑み、彼は温かい抱擁で応じた。

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。

B2 adjective /rɪˈɡret.ə.bəl/

Regrettable

残念な; 失望させる; 悲しい

Meaning

causing or deserving regret; unfortunate; deplorable

Example

It is regrettable that so many talented people left the company.

こんなに多くの才能ある人々が会社を辞めたのは残念です。

C1 noun rɪˈdʒɛn.ər.ə.tɪv ˈfɑːr.mɪŋ

regenerative farming

再生農業

Meaning

Agricultural practices that improve soil health and biodiversity.

Example

Regenerative farming improves soil fertility and biodiversity.

再生農業は土壌の肥沃度と生物多様性を向上させます。

C2 verb /ˈrʌstɪkeɪt/

rusticate

田舎に行く / 大学から一時的に追放する

Meaning

To go to the countryside or to suspend someone from university.

Example

He decided to rusticate in the village to escape the busy city life.

彼は忙しい都市生活から逃れるために村に行くことを決めました。

C2 adjective /rɪˈfʌldʒənt/

refulgent

輝く

Meaning

Shining brightly; radiant.

Example

The refulgent sun lit up the entire valley.

輝く太陽が谷全体を照らした。

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。

C1 verb /ˌriːˈsiːt/

reseat

再座席

Meaning

to seat someone again or to fit something back into its place

Example

The usher had to reseat the guests after the interruption.

接客係は中断後、ゲストを再座席させなければならなかった。

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 /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。

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。

B2 noun /ˈrɛnəˌsɑːns/

renaissance

ルネサンス

Meaning

a revival of art, culture, or learning; a period of renewed interest and growth

Example

The city experienced a cultural renaissance during the 1990s.

その都市は1990年代に文化的なルネサンスを経験しました。

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 noun /rɪˈsɛs/

recess

休憩

Meaning

A short break from work or school; also a small space set back in a wall.

Example

The children played outside during recess.

子供たちは休憩中に外で遊びました。

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。

B2 adjective /rɪˈzɪl.i.ənt/

resilient

回復力のある

Meaning

Able to withstand or recover quickly from difficult conditions.

Example

Resilient materials ensure durability.

回復力のある素材は耐久性を保証します。

B2 adjective /ˈrɪski/

risky

Meaning

Involving the possibility of danger, harm, or loss

Example

Investing in that startup is risky but could bring high rewards.

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 verb /ˌriːˈtʌtʃ/

retouch

修正する

Meaning

To improve or repair a picture, photograph, or image by making small changes.

Example

The photographer retouched the image to remove blemishes.

写真家は画像を修正して、シミを取り除きました。

C2 verb /ˈrʌmpəl/

rumple

しわにする

Meaning

to make something untidy or wrinkled by creasing or crumpling

Example

She accidentally rumpled her dress while packing.

彼女は荷物を詰める際にドレスをうっかりしわにした。

C1 verb /rɪˈpiːl/

repeal

Meaning

To officially cancel or revoke a law or decision.

Example

The government decided to repeal the outdated law.

B1 noun ˌrekəɡˈnɪʃn

recognition

認識

Meaning

Acknowledgment of the existence, validity, or legality of something; appreciation or acclaim for an achievement, service, or ability.

Example

He earned recognition after years of struggle.

彼は長年の努力の後、認識を得ました。

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。

B2 verb /ˌriːkriˈeɪt/

recreate

再創造する

Meaning

to create or produce something again, especially a new version of something lost or destroyed

Example

The team recreated the lost dataset from backups.

チームはバックアップから失われたデータセットを再作成しました。

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。

B2 verb /reɪp/

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。

B1 verb /rɪˈtaɪə/

retire

引退する

Meaning

to stop working after reaching a certain age or having completed a career

Example

She decided to retire after working for 40 years.

彼女は40年間働いた後、引退することに決めました。

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。

B1 noun /ˌrɛp.jʊˈteɪ.ʃən/

reputation

評判, 名声

Meaning

The opinion generally held about someone or something; fame or prestige.

Example

A good reputation is essential for business success.

良い評判はビジネスの成功に不可欠です。

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。

C2 verb /rɪˈkjʊə/

recure

再治療する

Meaning

to cure again; to remedy a second time

Example

The doctor had to recure the wound after it reopened.

医者は傷が再び開いた後、傷を再治療する必要がありました。

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。

C1 adjective /ˈruːfəl/

rueful

後悔した

Meaning

Expressing sorrow, regret, or pity.

Example

He gave a rueful smile after losing the match.

試合に負けた後、彼は後悔の笑顔を見せた。

C1 noun /roʊt/

rote

暗記

Meaning

mechanical or habitual repetition, often without understanding

Example

He learned the poem by rote without understanding its meaning.

彼はその詩を意味を理解せずに暗記しました。

C1 verb /rɒmp/

romp

楽しく遊ぶ

Meaning

to play or move in a lively, carefree, and energetic way

Example

The children romped happily in the garden.

子供たちは庭で楽しそうに遊んでいました。

B1 noun /ˈrɪðəm/

rhythm

リズム

Meaning

a strong, regular, repeated pattern of movement or sound

Example

The rhythm of the music made everyone want to dance.

音楽のリズムはみんなを踊りたくさせた。

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。

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。

C2 adjective /ˈreə.rɪ.faɪd/

rarefied

Meaning

Of high moral, intellectual, or cultural value; distant from ordinary life.

Example

He works in the rarefied world of classical music.

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。

B1 adjective /rɪˈtaɪərd/

Retired

引退した

Meaning

having left one's job and ceased to work; withdrawn from activity

Example

My retired grandfather enjoys gardening in his free time.

私の引退した祖父は自由な時間に園芸を楽しんでいます。

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 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。

B2 noun /ˌriː.ɪnˈfɔːrs.mənt/

reinforcement

強化

Meaning

Strengthening or supporting something, especially behavior or learning.

Example

Positive reinforcement helps in learning.

積極的な強化は学習に役立ちます。

C1 noun /ˌrɛtrɪˈbjuːʃən/

retribution

報復, 罰

Meaning

punishment inflicted as vengeance for a wrong or crime

Example

The villagers demanded retribution for the crime committed.

村人たちは犯された犯罪に対して報復を要求しました。

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。

B2 noun /ræɡ/

Rag

古い布; 掃除に使われる擦り切れた衣類

Meaning

a piece of old cloth used for cleaning; worn-out clothing

Example

She used an old rag to clean the dusty table.

彼女は古い布を使って、ほこりだらけのテーブルを掃除しました。

C1 noun /ˈruːdɪmənt/

rudiment

基本

Meaning

A basic principle, element, or fundamental part of something.

Example

He learned the rudiments of music before joining the band.

彼はバンドに参加する前に音楽の基礎を学びました。

B2 noun /rɪm/

rim

縁

Meaning

the outer edge or border of a circular object

Example

The coffee cup had a chip on its rim.

コーヒーカップの縁にひびが入っていました。

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 verb /ruː/

rue

後悔する

Meaning

To feel regret or sorrow about something.

Example

She will rue the day she trusted him.

彼女は彼を信じたその日を後悔するだろう。

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。

A1 noun /roʊd/

road

道路

Meaning

a wide way leading from one place to another

Example

We drove along the road to the village.

私たちは村に向かってその道路を運転していました。

C2 noun /ˈrɛkjʊzənt/

recusant

反抗者

Meaning

a person who refuses to submit to authority or comply with rules

Example

The recusant opposed the new law.

反抗者は新しい法律に反対しました。

B2 noun /reɪk/

Rake

レーキ

Meaning

a garden tool with a long handle and prongs for gathering leaves; to gather with a rake

Example

He used a rake to gather the fallen autumn leaves.

彼は落ち葉を集めるためにレーキを使いました。

B1 adverb /ˈrel.ə.tɪv.li/

Relatively

相対的に

Meaning

in comparison to something else; quite; fairly

Example

The weather is relatively warm today.

今日の天気は相対的に暖かい。

C2 verb /rɪˈmɒnstreɪt/

remonstrate

抗議する

Meaning

To make a forceful protest or objection.

Example

Citizens remonstrated against the new tax policy.

市民たちは新しい税制政策に抗議した。