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。

C1 noun /rɪˈdʌn.dəns/

Redundance

冗長

Meaning

the state of being not or no longer needed or useful; superfluous repetition of information

Example

The document contained redundance that made it unnecessarily long.

その文書には冗長性が含まれており、不必要に長くなっていました。

B1 noun /reɪ/

ray

光線

Meaning

a narrow beam of light, heat, or radiation

Example

A ray of sunlight broke through the clouds.

太陽の光線が雲を突き抜けた。

C1 noun /ruːz/

Ruse

策略; 騙し

Meaning

an action intended to deceive someone; a trick or stratagem

Example

The thief used a clever ruse to distract the guard.

泥棒は警備員を惑わすために巧妙な策略を使った。

C1 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。

A2 noun rɪˈspɛkt

respect

尊敬

Meaning

A feeling of deep admiration for someone or something.

Example

We should show respect to the freedom fighters.

私たちは自由の戦士たちに尊敬を示すべきです。

B2 verb /rɪp/

rip

裂ける

Meaning

to tear something quickly or violently

Example

He accidentally ripped his shirt on the fence.

彼はフェンスでシャツをうっかり裂けてしまいました。

A2 adverb /ˈrɑː.ðər/

Rather

むしろ; ～の代わりに;

Meaning

to some extent; instead; preferably

Example

I would rather stay home than go to the party.

パーティーに行くよりも家にいる方がいい。

B1 adjective /rɪˈkwaɪəd/

required

必要な

Meaning

necessary or compulsory

Example

A visa is required to enter the country.

その国に入るにはビザが必要です。

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 noun /ˌrek.ənˌsɪl.iˈeɪ.ʃən/

reconciliation

和解

Meaning

The restoration of friendly relations; the action of making one view or belief compatible with another.

Example

The peace treaty was a major step toward reconciliation.

平和条約は和解への重要な一歩でした。

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。

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.

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。

B2 noun/verb rɪˈfɔːm

reform

改革

Meaning

Make changes in (something, typically a social, political, or economic institution or practice) in order to improve it.

Example

Reform in the education system was a priority.

教育システムの改革は優先事項でした。

C1 verb rɪˈplɛn.ɪʃ

replenish

補充する

Meaning

Fill something up again.

Example

Drinking water helps replenish lost fluids in the body.

水を飲むことは、体内で失われた液体を補充するのに役立ちます。

B2 adjective /ˈruː.tɪd/

Rooted

根付いた

Meaning

deeply established; firmly fixed

Example

His beliefs are deeply rooted in tradition.

彼の信念は伝統に深く根ざしている。

C1 verb/noun /ˈrɛlɪʃ/

relish

楽しむ / 調味料

Meaning

to greatly enjoy; also a condiment or sauce

Example

She relished the opportunity to travel abroad.

彼女は海外旅行の機会を大いに楽しんでいました。

B2 noun /ˈraɪfəl/

Rifle

ライフル

Meaning

a gun with a long barrel that is fired from the shoulder

Example

The soldier carried a rifle during the mission.

兵士は任務中にライフルを携帯していました。

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。

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 /ˌriː.pəˈkʌʃ.ən/

repercussion

影響

Meaning

An unintended consequence occurring some time after an event or action.

Example

The economic crisis had severe repercussions on global trade.

経済危機は世界貿易に深刻な影響を与えました。

C1 noun /ˌrɛspɪˈreɪʃən/

respiration

Meaning

The process of breathing or the exchange of gases in living organisms.

Example

Respiration is essential for all living beings.

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 /rɪˈkɜr.əns/

Recurrence

再発

Meaning

the fact of something happening again; an instance of something happening again

Example

The doctor was concerned about the recurrence of the patient's symptoms.

医師は患者の症状の再発について懸念していました。

C1 noun /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 verb /ˈrek.ən.saɪl/

reconcile

和解する, 調和する

Meaning

Restore friendly relations between; cause to coexist in harmony.

Example

They tried to reconcile their differences through open communication.

彼らは開かれたコミュニケーションを通じて自分たちの違いを和解しようとしました。

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 noun /rɪˈvɜːrʒən/

reversion

逆転

Meaning

the act of returning to a previous state or condition

Example

The new policy marked a reversion to traditional methods.

新しい政策は伝統的な方法への逆転を意味しました。

C1 noun /ˈroʊdənt/

rodent

齧歯類

Meaning

a small mammal such as a mouse, rat, or squirrel, characterized by constantly growing incisors

Example

The farmer set traps to catch the rodents in his barn.

農場主は納屋の中でロデントを捕まえるために罠を設置しました。

C1 noun /rɪˌmjuː.nəˈreɪ.ʃən/

Remuneration

報酬; 報奨金; 料金

Meaning

money paid for work or services; compensation or reward

Example

The job offers excellent remuneration and benefits.

その仕事は優れた報酬と福利厚生を提供します。

B2 verb /rɪˈkruːt/

recruit

採用する

Meaning

to enlist or hire people for a job, service, or membership

Example

The company is trying to recruit more software engineers.

その会社はもっと多くのソフトウェアエンジニアをリクルートしようとしています。

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。

B2 verb /rɪˈliːv/

relieve

Meaning

to make pain, distress, or difficulty less severe or serious

Example

The medicine helped relieve his headache.

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。

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。

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。

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。

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。

B2 adjective /rɪˈzɪstənt/

resistant

耐性

Meaning

not affected by something; able to oppose or withstand

Example

This fabric is resistant to water and stains.

この布は水と汚れに強いです。

B2 noun /ˈroʊ.lɪŋ pɪn/

Rolling pin

めん棒

Meaning

a cylindrical tool used for rolling out dough or pastry

Example

Roll the dough flat with a rolling pin.

めん棒で生地を広げてください。

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。

C2 noun /rʌmp/

Rump

尻; お尻; 背中の下部

Meaning

the hindquarters or buttocks; the lower back area

Example

The horse injured its rump during the fall.

その馬は転倒した際にお尻を痛めました。

C2 noun /ˈruː.mɪ.nənt/

ruminant

反芻動物

Meaning

a cud-chewing mammal, such as a cow or sheep

Example

Cows are ruminants that chew cud.

牛は反芻動物で、食べ物を再度咀嚼します。

B2 noun /ˌrɛfəˈriː/

referee

審判

Meaning

a person who oversees a game or match to ensure the rules are followed

Example

The referee stopped the game after a foul.

審判はファウルの後、試合を停止しました。

B2 adjective /ˈrɪdʒ.ɪd/

Rigid

硬直

Meaning

hard and stiff; not able to bend; strict and unwilling to change

Example

The company has a rigid dress code that all employees must follow.

会社にはすべての従業員が従う必要がある厳格なドレスコードがあります。

C2 noun /ˈrɪvjʊlət/

rivulet

小川

Meaning

a small stream of water; a tiny brook

Example

A rivulet ran down the hillside after the rain.

雨の後、小川が丘を下った。

B2 noun ˌreɪ.di.oʊ.ækˈtɪv.ə.ti

radioactivity

放射性

Meaning

The emission of ionizing radiation or particles caused by the spontaneous disintegration of atomic nuclei.

Example

Radioactivity is used in medical treatments like cancer therapy.

放射性は、がん治療のような医療に用いられている。

B2 adverb /ˈred.ɪ.li/

Readily

快く; 簡単に; ためらわずに

Meaning

willingly; easily; without hesitation

Example

She readily agreed to help with the project.

彼女は喜んでプロジェクトを手伝うことに同意した。

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。

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。

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。

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。

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。

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。

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。

C1 adjective /rɪˈsɜːrdʒənt/

resurgent

復活した

Meaning

Becoming strong, active, or popular again.

Example

The resurgent economy gave hope to many businesses.

復活した経済は多くのビジネスに希望を与えた。

A1 noun ˈræbɪt

rabbit

ウサギ

Meaning

A small mammal with long ears, long hind legs, and a short tail

Example

The rabbit ran quickly into the forest.

ウサギは森の中を速く走った。

A2 noun /ˈrʌnɪŋ/

running

ランニング

Meaning

the action or sport of running

Example

Running every morning keeps me healthy.

毎朝ランニングをすると健康が保たれます。

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.

C2 noun /rɪˈsɪʒən/

rescission

契約解除

Meaning

the cancellation or annulment of a law, contract, or agreement

Example

The rescission of the contract left both parties disappointed.

契約の解除により、双方は失望しました。

A2 noun /reɪs/

race

レース

Meaning

a competition of speed, or a group of people with similar characteristics

Example

The race was very exciting, with many competitors.

レースは非常にエキサイティングで、たくさんの競技者がいました。

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。

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。

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.

C1 noun rɪˈfaɪnmənt

refinement

精練

Meaning

The process of removing impurities or unwanted elements from a substance.

Example

His manners showed a refinement that made him stand out in any crowd.

彼のマナーは精練されたもので、どんな群衆の中でも目立っていた。

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。

C2 verb /rɔɪl/

roil

かき乱す

Meaning

to make a liquid muddy or disturbed; to cause agitation or disorder

Example

The constant protests roiled the city streets.

絶え間ない抗議が街の通りをかき乱した。

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。

B1 noun ruːlz ənd ˌrɛɡjʊˈleɪʃənz

rules and regulations

規則と規定

Meaning

Official orders and laws that control how something is done.

Example

Rules and regulations alone cannot change attitudes.

規則と規定だけでは態度を変えることはできません。

C1 verb /ˈrævɪdʒ/

ravage

荒廃させる

Meaning

to cause severe and extensive damage or destruction

Example

The hurricane ravaged the coastal villages.

ハリケーンは沿岸の村を荒廃させた。

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。

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。

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。

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。

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。

C2 verb /rɪˈtrɛntʃ/

retrench

コスト削減、従業員の解雇

Meaning

to reduce costs, spending, or staff to save resources

Example

The company had to retrench employees due to financial difficulties.

会社は財政的な困難のため、従業員をリトレンチしなければならなかった。

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。

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。

A2 verb /rɪˈpleɪs/

replace

交換する

Meaning

to take the place of something or someone; to put something new in place of something old

Example

He decided to replace the broken lamp with a new one.

彼は壊れたランプを新しいものと交換することに決めました。

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。

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。

C1 adjective /rɪˈtɜː.nə.bəl/

Returnable

返品可能

Meaning

able to be returned or given back

Example

The bottle is returnable for a deposit refund.

ボトルはデポジット返金のために返品可能です。

B1 noun /rɪˈkwaɪə(r)mənt/

requirement

要件

Meaning

something that is necessary or demanded

Example

The job has specific educational requirements.

この仕事には特定の教育要件があります。

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。

A2 adjective /ˈreɪ.ni/

Rainy

雨の日の

Meaning

characterized by rain; wet from rain; having much rain

Example

It was a rainy day, so we stayed indoors.

今日は雨の日だったので、家の中にいました。

C1 noun /ˈreɪ.biːz/

rabies

狂犬病

Meaning

A viral disease that causes inflammation of the brain in humans and other mammals, usually transmitted through animal bites.

Example

The dog was vaccinated against rabies.

犬は狂犬病のワクチンを接種しました。

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。

C1 verb /ˌriːəˈdʒʌst/

readjust

再調整

Meaning

To change or move something again in order to achieve a better fit, condition, or balance.

Example

He readjusted the chair to make it more comfortable.

彼は椅子をもっと快適にするために再調整しました。

C1 noun /ˌriːhəˌbɪlɪˈteɪʃən/

rehabilitation

幸福

Meaning

the process of restoring someone or something to health or normal life through training or therapy

Example

After the accident, he went through months of rehabilitation to walk again.

彼女は賞を受け取ったとき、自分の幸福を隠せなかった。

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 /ˈraɪdər/

rider

ライダー

Meaning

A person who rides a horse, bicycle, motorcycle, or other vehicle.

Example

The rider fell off the horse.

ライダーは馬から落ちました。

C1 adverb /ˈrɪdʒɪdli/

Rigidly

厳格に; 柔軟性なしで

Meaning

in a strict, inflexible manner; without compromise

Example

The rules are rigidly enforced in this institution.

この機関ではルールは厳格に適用されます。

C1 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。

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。

B2 adjective /rɪˈspɒn.sɪv/

Responsive

反応が早い

Meaning

reacting quickly and positively; readily reacting to suggestions or changes

Example

The website is very responsive and loads quickly on all devices.

そのウェブサイトは非常にレスポンシブで、すべてのデバイスで迅速に読み込まれます。

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 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。

B1 adjective, noun /ˈroʊmən/

roman

ローマの / 古代ローマの市民

Meaning

relating to Rome or its people; a citizen of ancient Rome

Example

The Roman Empire influenced much of modern civilization.

ローマ帝国は現代文明に多大な影響を与えました。

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。

A2 verb /ˈrɛkəɡnaɪz/

recognize

Meaning

To identify someone or something seen before; to acknowledge or accept.

Example

She did not recognize him in the crowd.

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。

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.

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。

B1 adverb /ˈrʌfli/

Roughly

おおよそ; 粗暴または暴力的な方法で

Meaning

approximately; in a harsh or violent way

Example

The project will take roughly three months to complete.

このプロジェクトはおおよそ3ヶ月かかります。

C2 verb /rɪˈkwaɪt/

requite

返す

Meaning

to return or repay a favor, service, or feeling

Example

She requited his kindness with a thoughtful gift.

彼女は彼の親切に思慮深い贈り物で報いました。

B1 verb /riˈækt/

react

反応する

Meaning

to respond or behave in a particular way to something

Example

She reacted angrily when she heard the news.

彼女はニュースを聞いて怒って反応した。

C1 verb /ˈrɪdɪkjuːl/

ridicule

嘲笑する

Meaning

To make fun of someone or something in a cruel or dismissive way.

Example

He was ridiculed for his strange ideas.

彼は奇妙な考えのために嘲笑されました。

B2 adjective /ˈrændəm/

Random

ランダム

Meaning

without pattern or predetermined order; happening by chance

Example

She selected a random book from the library shelf.

彼女は図書館の棚からランダムに本を選びました。

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。

C2 noun /rɪˈvaɪlər/

reviler

侮辱者

Meaning

a person who criticizes or insults others abusively

Example

He was known as a reviler of all who opposed him.

彼は自分に反対する全ての人々を侮辱する者として知られていました。

C1 verb /rɪˈtreɪs/

retrace

Meaning

to go back over a path or route; to recall and repeat steps taken earlier

Example

She retraced her steps to find her lost keys.

B2 adjective /ˈræp.ɪd/

Rapid

迅速な；急速な；素早い；

Meaning

happening in a short time or at a fast pace

Example

The rapid growth of technology has changed our daily lives.

テクノロジーの急速な成長は私たちの日常生活を変えました。

C2 noun /rɪˈsɪdɪˌvɪzəm/

recidivism

Meaning

The tendency of a convicted criminal to reoffend or relapse into criminal behavior.

Example

The government introduced new programs to reduce recidivism among former inmates.

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.

C2 noun /rɪˌkrɪmɪˈneɪʃən/

recrimination

相互非難

Meaning

an accusation made in response to an accusation; mutual blaming

Example

The debate quickly descended into mutual recriminations.

討論はすぐに相互非難に陥った。

C1 adjective /ˈreɡ.jʊ.lə.tər.i/

Regulatory

規制

Meaning

Having the power to control or govern something through rules and regulations.

Example

The government enforces regulatory policies for financial stability.

政府は金融安定性のために規制政策を実施しています。

B1 noun /rɪˈfjuːz/

Refuse

ゴミ; 拒否

Meaning

waste material; garbage; to decline or reject something

Example

Please put the refuse in the designated bins.

指定されたゴミ箱にゴミを入れてください。

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 /ˈriːzənɪŋ/

reasoning

推論

Meaning

the process of thinking about something in a logical way in order to form a conclusion or judgment

Example

Her reasoning for leaving was clear and logical.

彼女の出発の推論は明確で論理的でした。

B2 noun /roʊˈteɪʃən/

Rotation

回転; 回転運動; 自転

Meaning

the action of rotating around an axis or center; a single turn

Example

The Earth's rotation takes 24 hours to complete.

地球の回転は24時間かかります。