C1 adjective /rɪˈflek.sɪv/

Reflexive

反射的; 内省的

Meaning

directed back on itself; showing deep thought about oneself

Example

She became more reflexive about her behavior after the feedback.

フィードバックの後、彼女は自分の行動についてもっと反省的になりました。

C1 verb /ˈruː.mɪ.neɪt/

ruminate

思索する, 反芻する

Meaning

to think deeply about something; to chew cud (for animals)

Example

She sat alone to ruminate on her decision.

彼女は自分の決断について一人で思索していた。

B1 noun ˌrek.ə.menˈdeɪ.ʃənz

recommendations

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。

A1 verb /rʌn/

run

走る

Meaning

to move quickly on foot; to operate or function

Example

I run every morning for exercise.

私は毎朝運動のために走ります。

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。

A2 verb /rɪˈmaɪnd/

remind

思い出させる

Meaning

to cause someone to remember something

Example

Please remind me to call her tomorrow.

明日彼女に電話するのをリマインドして下さい。

C1 noun /rɪˈpraɪ.zəl/

Reprisal

報復

Meaning

an act of retaliation; revenge taken for an injury or wrong

Example

The attack was carried out as a reprisal for the earlier bombing.

この攻撃は以前の爆撃に対する報復として行われました。

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 noun /ˈrʊkəri/

rookery

鳥の巣

Meaning

a place where rooks or other birds breed and nest in colonies

Example

We saw a rookery full of noisy birds near the forest.

森の近くで、騒がしい鳥たちでいっぱいの鳥の巣を見ました。

B2 noun, verb, adjective /ræŋk/

rank

ランク

Meaning

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

Example

She quickly rose to a senior rank in the company.

彼女は会社で素早く上級ランクに昇進しました。

C1 noun /rɪˈpɔːrtɪʒ/

reportage

報道

Meaning

the act of reporting news or describing events in the media

Example

The magazine is known for its detailed reportage of political issues.

その雑誌は政治問題に関する詳細な報道で知られています。

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。

C2 adjective /rɪˈmɪs/

remiss

怠慢

Meaning

Negligent in performing a duty or responsibility.

Example

The manager was remiss in not checking the financial reports carefully.

マネージャーは財務報告書を慎重に確認しなかったことで怠慢だった。

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 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。

B2 noun /ˈreɪ.zər/

Razor

かみそり

Meaning

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

Example

He shaved his beard with a sharp razor.

彼は鋭いかみそりでひげを剃った。

B2 noun /rɪˈbel.jən/

Rebellion

反乱

Meaning

an act of armed resistance to an established government or leader

Example

The rebellion against the king lasted for three years.

王に対する反乱は3年間続いた。

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 noun /ˈrɛlɪvəns/

relevance

Reception

歓迎; 受け入れ; イベント;

Meaning

the action of receiving something or someone; a formal social occasion held to welcome someone

Example

The wedding reception was held at a beautiful hotel.

結婚式のレセプションは美しいホテルで行われました。

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。

C2 verb /rɛtʃ/

retch

幸せ

Meaning

to make the sound and movement of vomiting without bringing anything up

Example

The smell of spoiled food made him retch violently.

賞を受け取った時、彼女は喜びを隠すことができませんでした。

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。

C1 noun /ˈrʌmpəs/

Rumpus

騒動; 混乱; 騒音

Meaning

a noisy disturbance; an uproar or commotion

Example

The children caused quite a rumpus in the playground.

子供たちは遊び場でかなりの騒動を引き起こしました。

C1 verb /ˈrʌf.l̩/

ruffle

Meaning

to disturb the smoothness of something; to annoy or upset someone

Example

The wind ruffled her hair.

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。

A2 noun /roʊz/

Rose

バラ

Meaning

a fragrant flower with thorny stems, typically red, pink, white, or yellow

Example

She gave me a beautiful red rose for Valentine's Day.

彼女はバレンタインデーに私に美しい赤いバラをくれました。

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。

C1 noun /rɪˈpjuːt/

repute

評判

Meaning

the opinion generally held of someone or something; reputation

Example

He is a scholar of great repute in his field.

彼はその分野で大変な評判を持つ学者です。

C1 noun /riˈæktənt/

reactant

Meaning

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

Example

Oxygen is a reactant in the process of combustion.

A2 adjective /ˈrʌʃən/

russian

Meaning

relating to Russia, its people, or its language

Example

She is studying the Russian language at university.

C2 noun /rɪˈkɒɡnɪzəns/

recognizance

法的義務

Meaning

A legal obligation or bond entered into before a court, especially to ensure future appearance.

Example

He was released on his own recognizance.

彼は自分の法的義務で釈放されました。

C2 noun /rɪˈvaɪ.zəl/

revisal

改訂

Meaning

The act of revising, reviewing, or making changes to something.

Example

The revisal of the contract took longer than expected.

契約の改訂には予想以上の時間がかかりました。

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。

B2 verb /riːp/

reap

収穫する

Meaning

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

Example

Farmers reap wheat in the late summer.

農家は晩夏に小麦を収穫します。

B1 verb /rɪd/

rid

取り除く

Meaning

to remove or get rid of something

Example

I need to rid the house of all the clutter.

家の中のすべてのゴミを取り除く必要があります。

C1 noun /rɪˈmɔːrs/

Remorse

後悔

Meaning

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

Example

He felt deep remorse for his actions.

彼は自分の行動に対して深い後悔を感じていた。

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 noun ˈrez.ɪ.djuː

residue

残留物

Meaning

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

Example

Soap residue affects appliance efficiency.

石鹸の残りが機器の効率に影響を与えます。

C1 noun /ˈrɪɡər/

rigor

厳格さ

Meaning

strictness, severity, or demanding conditions

Example

The training was carried out with great rigor.

訓練は大変厳格に行われました。

C2 adjective /ˈrʌdi/

ruddy

赤ら顔

Meaning

Having a healthy red color in the face.

Example

She had a ruddy complexion from working outdoors.

彼女は外で働いたため、赤ら顔でした。

C2 noun /rɪˈfræk.tər/

refractor

屈折望遠鏡

Meaning

A type of telescope that uses lenses to focus light.

Example

Refractor telescopes use lenses to focus light.

屈折望遠鏡は光を集中させるためにレンズを使用します。

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 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。

B2 adjective rɪˈnaʊnd

renowned

著名

Meaning

Known or talked about by many people; famous.

Example

The renowned scientist led the reform panel.

その著名な科学者は改革パネルを指導しました。

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。

B2 verb rɪˈzaɪn

resign

辞任する

Meaning

Voluntarily leave a job or other position.

Example

Ministers were forced to resign.

大臣たちは辞任を余儀なくされました。

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 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。

C2 noun /ˌræʃioʊsɪˈneɪʃən/

ratiocination

推論

Meaning

the process of reasoning or logical thinking

Example

His ratiocination impressed the judges during the debate.

彼の推論は討論中に審査員を感動させた。

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。

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。

C2 verb /rɪˈdaʊnd/

redound

貢献する

Meaning

to contribute greatly to a result or consequence, usually beneficial

Example

His hard work will redound to the success of the company.

彼の努力は会社の成功に貢献するでしょう。

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。

B1 verb /rɪˈvaɪz/

revise

修正する

Meaning

To change, improve, or update something, especially a written work.

Example

She had to revise her essay before submission.

彼女は提出前にエッセイをリヴァイズする必要があった。

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 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 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。

B1 noun /raɪs ˈkʊkər/

Rice cooker

電気炊飯器

Meaning

an electric appliance designed to cook rice automatically

Example

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

ライスクッカーはご飯が完璧に炊けると自動でオフになります。

C2 noun /rɪˈdʒɔɪndər/

rejoinder

返答

Meaning

a quick or witty reply; a response to a remark or argument

Example

His sharp rejoinder silenced the crowd.

彼の鋭い返答が群衆を沈黙させた。

B2 adjective /rɪˈspek.tə.bəl/

Respectable

尊敬すべき

Meaning

worthy of respect; having good reputation; decent

Example

He comes from a respectable family in the community.

彼は地域社会の尊敬すべき家族から来ました。

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。

C2 adjective /rɪˈkæl.sɪ.trənt/

recalcitrant

反抗的, 頑固な, 服従しない

Meaning

Having an obstinately uncooperative attitude toward authority or discipline.

Example

The recalcitrant student refused to follow rules.

反抗的な学生は規則に従うことを拒否した。

C1 adjective /rɪˈpres.ɪv/

Repressive

抑圧的な

Meaning

restraining freedom or preventing self-expression; oppressive

Example

The repressive government banned all forms of protest.

抑圧的な政府はすべての抗議の形態を禁止しました。

A1 adjective /ˈrɛd.i/

ready

準備ができた

Meaning

Prepared or available for use or action.

Example

She was ready to leave for the airport.

彼女は空港に行く準備ができていた。

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 noun /rɪˈpɑːzɪtɔːri/

repository

リポジトリ

Meaning

a place where things are stored or kept for safekeeping

Example

The library serves as a repository of knowledge.

図書館は知識のリポジトリとして機能します。

B2 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。

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。

B1 verb /ˌrɛprɪˈzɛnt/

represent

代表する

Meaning

to act or speak on behalf of someone or something

Example

He will represent our company at the conference.

彼は会議で私たちの会社を代表します。

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。

C2 noun /ˈriːdʒənt/

regent

摂政

Meaning

a person who rules in place of a monarch when the monarch is absent or too young

Example

The prince acted as regent until the king came of age.

王子は王が成人するまで摂政として行動した。

C2 verb /rɪˈfrækt/

refract

屈折する

Meaning

To bend light, sound, or heat as it passes through a medium.

Example

The water refracts light, making the straw look bent.

水は光を屈折させ、ストローが曲がって見える。

B2 noun /ˌrep.ɪˈtɪʃ.ən/

Repetition

繰り返し

Meaning

the action of repeating something that has already been said or written

Example

Constant repetition helps students memorize vocabulary effectively.

継続的な繰り返しは、学生が語彙を効果的に覚えるのを助けます。

B2 noun rɪˈzentmənt

resentment

憤り

Meaning

Bitter indignation at having been treated unfairly.

Example

Resentment grew among the students.

学生の間で憤りが増大した。

B2 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。

B2 adverb /rɪˈɡɑrdləs/

regardless

関係なく

Meaning

without paying attention to the current situation or condition

Example

She will go to the party regardless of the weather.

彼女は天気に関係なくパーティーに行きます。

C1 verb /riːˈfɜːrbɪʃ/

refurbish

改装する

Meaning

To renovate or redecorate something, especially a building.

Example

The company decided to refurbish its old office.

その会社は古いオフィスを改装することを決定しました。

B2 noun /rɪˌlaɪəˈbɪləti/

reliability

信頼性

Meaning

the quality of being trustworthy or performing consistently well

Example

Customers value the reliability of our service.

お客様は私たちのサービスの信頼性を重視しています。

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 adjective /ræmˈbʌŋk.ʃəs/

rambunctious

騒々しい

Meaning

boisterous, energetic, and difficult to control.

Example

The rambunctious children filled the house with noise.

騒々しい子供たちが家を騒音で満たしました。

B2 verb /ˈroʊ.teɪt/

rotate

回転する

Meaning

to turn around a central point or axis

Example

The Earth rotates on its axis once every 24 hours.

地球は24時間ごとに自転します。

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。

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。

B1 noun /ˌrɛdʒɪˈstreɪʃən/

registration

登録

Meaning

the action or process of enrolling or signing up for something

Example

The registration for the event will close tomorrow.

イベントの登録は明日締め切りです。

B1 adjective /rɪˈmeɪnɪŋ/

remaining

残り

Meaning

still existing or left after others are gone or dealt with

Example

There were only a few remaining tickets for the concert.

コンサートのチケットは残りわずかでした。

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 /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。

B2 noun /ˈrem.ə.di/

Remedy

薬; 治療; 問題解決の手段

Meaning

a medicine or treatment for a disease; a solution to a problem

Example

This herbal remedy helps with headaches.

このハーブの薬は頭痛に効く。

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。

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。

C2 adjective /ˈrɛstɪv/

restive

落ち着かない

Meaning

unable to stay still or silent; restless and impatient

Example

The crowd grew restive as they waited for the concert to begin.

コンサートが始まるのを待っている間、観客は落ち着かなくなった。

B1 noun /ˌrek.ə.menˈdeɪ.ʃən/

Recommendation

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。

B2 adjective /ˈrek.ləs/

Reckless

無謀な; 無鉄砲な; 危険な;

Meaning

acting without thinking about consequences; careless; dangerous;

Example

His reckless driving caused a serious accident.

彼の無謀な運転は深刻な事故を引き起こしました。

A1 verb /raɪd/

ride

乗る/ライディング

Meaning

to travel on or in a vehicle; to sit on and control a horse

Example

She likes to ride her bicycle to work.

彼女は自転車で仕事に行くのが好きです。

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。

B2 verb /rɪˈvoʊlt/

revolt

反乱する

Meaning

to rebel against authority; to feel disgust

Example

The people revolted against the corrupt government.

人々は腐敗した政府に反乱を起こしました。

B2 verb /rɪˈzuːm/

resume

再開する

Meaning

to start again after a pause or interruption

Example

We will resume the meeting after lunch.

ランチの後に会議を再開します。

B2 noun /rʌst/

Rust

錆

Meaning

reddish-brown coating formed on iron or steel by oxidation; corrosion

Example

The old car was covered in rust after years of neglect.

古い車は何年も放置されていた後、サビで覆われていました。

A2 verb /ˈriːəlaɪz/

realize

気づく

Meaning

to become aware of; to understand clearly; to achieve or make real

Example

I didn't realize how late it was until I checked the clock.

時計を見るまで、こんなに遅いとは気づかなかった。

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 /ˌriː.dɪs.trɪˈbjuː.ʃən/

redistribution

再分配

Meaning

The sharing of wealth or resources more equally among society.

Example

The government introduced a redistribution policy to reduce inequality.

政府は不平等を減らすために再分配政策を導入しました。

C1 adjective /ˌrɛtroʊˈæktɪv/

retroactive

遡及的

Meaning

applying to a period before it was enacted or established

Example

The new law was made retroactive to cover past cases.

新しい法律は過去のケースをカバーするために遡及的に作られました。

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。

C2 adjective /rɪˈmiːdiəbl/

remediable

修正可能

Meaning

capable of being corrected or cured

Example

The mistake was serious but still remediable.

その誤りは重大でしたが、まだ修正可能でした。

B1 verb /rɪˈspɒnd/

respond

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。

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。

B2 noun, verb /rɪər/

rear

後ろ / 育てる

Meaning

the back part of something; to bring up or raise children or animals

Example

The mother cat reared her kittens in a quiet corner.

母猫は静かな隅で子猫たちを育てました。

B2 noun /ˌriːprəˈdʌkʃən/

reproduction

再生, 繁殖

Meaning

The process of producing offspring; the act of copying or duplicating.

Example

The textbook included a detailed diagram of human reproduction.

教科書には人間のリプロダクションの詳細な図が含まれていました。

B1 verb /rɑːb/

rob

強盗する

Meaning

to steal money or property from a person or place; to commit robbery

Example

The thief tried to rob the bank last night.

泥棒は昨晩銀行を強盗しようとしました。

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 verb /rɪˈɡrɛs/

regress

Meaning

To return to a former or less developed state.

Example

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

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。

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 /rəˈviːn/

ravine

渓谷

Meaning

A deep, narrow valley with steep sides.

Example

The river carved a deep ravine through the mountains.

川は山々を通って深い渓谷を作り出した。

C2 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。

B2 adjective /rɪˈstrɪk.tɪd/

Restricted

制限された; 制御された; 制限付き

Meaning

limited or controlled; subject to restrictions

Example

Access to this area is restricted to authorized personnel only.

このエリアへのアクセスは、認可されたスタッフのみが制限されています。

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。