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 adjective /ˈroʊlɪŋ/

rolling

転がる

Meaning

moving in gentle undulations; moving forward by turning over and over

Example

They drove through the rolling hills of the countryside.

彼らは田舎の転がる丘を通り抜けました。

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 noun rɪˈzɪl.i.əns

resilience

レジリエンス

Meaning

The ability to recover quickly from difficulties; toughness.

Example

Testing the resilience of wood is crucial.

木材のレジリエンスをテストすることは非常に重要です。

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。

B2 adjective /ˈreɪsɪst/

racist

人種差別主義者

Meaning

showing or feeling discrimination or prejudice against people of other races

Example

He was accused of making racist comments.

彼は人種差別的なコメントをしたとして非難された。

B2 noun /rɪˈhɜːr.səl/

Rehearsal

リハーサル; 公演の練習

Meaning

a practice performance of a play, concert, or other work for later public performance

Example

The final rehearsal before opening night went perfectly.

開幕前の最後のリハーサルは完璧でした。

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 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。

B2 noun /ˈreɪ.zɪnz/

Raisins

レーズン

Meaning

dried grapes, often used in cooking and baking

Example

She added raisins to the oatmeal cookies for extra sweetness.

彼女はオートミールクッキーに甘さを加えるためにレーズンを加えた。

B2 verb /ˈræl.i/

rally

Meaning

to come together for a common purpose or to recover strength or spirit

Example

The team rallied after halftime and won the match.

B2 noun, verb /ræŋks/

ranks

ランク

Meaning

Positions within a group, especially in a hierarchy or organization.

Example

He quickly moved up the ranks of the army.

彼はすぐに軍隊のランクで上昇しました。

B2 noun /ˌrezəˈveɪʃən/

Reservation

予約

Meaning

the action of reserving something; an arrangement whereby something is reserved for a particular person; a qualification to an expression of agreement or approval

Example

I made a reservation at the restaurant for tonight.

今夜のレストランの予約をしました。

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。

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 /rɪˈkɜːr/

recur

Meaning

to happen again, especially repeatedly or at regular intervals

Example

The headache tends to recur every few weeks.

B2 noun, verb /ˈriːteɪl/

retail

小売

Meaning

the sale of goods to the public in small quantities for use or consumption rather than for resale

Example

The company specializes in the retail of clothing and accessories.

この会社は衣類とアクセサリーの小売を専門としています。

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。

B2 adjective /rɪˈfreʃ.ɪŋ/

Refreshing

さわやか

Meaning

making one feel energized and renewed; pleasantly new or different

Example

The cool breeze was refreshing after the hot day.

暑い一日後の涼しい風はさわやかだった。

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。

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。

B2 noun /rʌʃ/

Rush

急ぎ; ラッシュ

Meaning

a sudden quick movement toward something; a period of great activity or demand; hurry

Example

There was a rush to buy tickets for the concert.

コンサートのチケットを買うために急いでいました。

B2 noun /rɛlm/

realm

Meaning

A kingdom or domain; a field or area of activity or interest.

Example

He is well known in the realm of science.

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 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。

B2 verb /rɪˈdʒɔɪs/

rejoice

喜ぶ

Meaning

to feel or show great joy; to celebrate

Example

The family rejoices at the good news.

その家族は良いニュースに喜んでいます。

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。

B2 verb /ˌriːəˈreɪndʒ/

rearrange

再配置する

Meaning

to change the order or position of something

Example

She decided to rearrange the furniture in her living room.

彼女はリビングルームの家具を再配置することに決めました。

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。

B2 verb /ˈrendər/

render

提供する

Meaning

to provide or give; to make or cause to become

Example

The artist renders the scene beautifully.

アーティストはシーンを美しく表現します。

B2 adjective /rɪˈspek.tɪv/

Respective

それぞれの; 各自の

Meaning

belonging to each individual; particular to each

Example

The students returned to their respective classrooms after lunch.

学生たちは昼食後、それぞれの教室に戻った。

B2 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。

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 /reɪˈʒiːm/

regime

政権

Meaning

a system or form of government, often authoritarian

Example

The military regime controlled the country for decades.

軍事政権は数十年間国を支配していました。

B2 noun /rɪˈlaɪ.əns/

Reliance

依存

Meaning

the state of depending on something or someone for support or help

Example

His reliance on technology is concerning.

技術への依存は懸念すべきことです。

B2 noun /reɪdʒ/

rage

怒り

Meaning

intense anger or fury

Example

She shouted in a fit of rage after hearing the news.

彼女はそのニュースを聞いて怒りの叫び声を上げました。

B2 noun /ˌreɡ.jʊˈleɪ.ʃənz/

regulations

規制

Meaning

Rules or directives made and maintained by an authority.

Example

Strict regulations ensure fair practices.

厳格な規制は公正な慣行を確保します。

B2 adjective /raɪp/

Ripe

熟した; 食べる準備ができた

Meaning

fully developed and ready to eat; mature; ready for action or use

Example

The bananas are ripe and ready to eat.

バナナは熟して食べる準備ができています。

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。

B2 verb /rɪˈvɜːrt/

revert

戻る

Meaning

to return to a previous state, condition, or practice

Example

The system will revert to its original settings after the update.

システムは更新後、元の設定に戻ります。

B2 adjective /rɪˈfaɪnd/

Refined

洗練された; 精製された

Meaning

elegant and cultured in appearance, manner, or taste; purified

Example

She has very refined taste in art and music.

彼女は芸術と音楽に非常に洗練された趣味を持っています。

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。

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 noun rɪˈkruːt.mənt

recruitment

採用

Meaning

The action of finding new people to join an organization or support a cause.

Example

Recruitment strengthens the workforce.

採用は労働力を強化します。

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 /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 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 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。

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 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。

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 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 /ˈruːstər/

rooster

雄鶏

Meaning

A male domestic chicken, especially one that crows.

Example

The rooster crowed at dawn, waking up the whole village.

雄鶏は夜明けに鳴き、村全体を起こした。

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 /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。

B2 noun /'ræd.ɪʃ/

Radish

ラディッシュ

Meaning

a small pungent edible root vegetable with white or red skin

Example

The farmer harvested fresh radishes from the garden.

農家は庭から新鮮なラディッシュを収穫しました。

B2 noun /ˈruːmər/

Rumour

噂; ゴシップ; ニュース

Meaning

a currently circulating story or report of uncertain or doubtful truth; gossip

Example

There's a rumour that the company will close next month.

会社が来月閉鎖されるという噂があります。

B2 verb /rɪˈstrɪkt/

restrict

制限する

Meaning

To limit the size, amount, or range of something.

Example

The government decided to restrict the use of plastic bags.

政府はプラスチック袋の使用を制限することを決定しました。

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。

B2 verb /ˈreɡjəleɪt/

regulate

規制する

Meaning

to control or maintain according to rules or laws

Example

The government regulates food safety.

政府は食品安全を規制しています。

B2 noun /ˈrest.ləs.nəs/

Restlessness

不安

Meaning

the inability to rest or relax as a result of anxiety or boredom

Example

His restlessness during the long meeting was obvious to everyone.

長い会議中、彼の不安は全員に明らかだった。

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。

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 /rɪˈkʌvərɪŋ/

recovering

回復

Meaning

the process of getting better after illness, loss, or difficulty

Example

She is still recovering from the flu.

彼女はまだインフルエンザから回復しています。

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。

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。

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。

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。

B2 verb /ˌriːprəˈdjuːs/

reproduce

再生する, 繁殖する

Meaning

To make a copy of something; to generate offspring.

Example

Many animals reproduce rapidly in favorable conditions.

多くの動物は好ましい条件下で急速に繁殖します。

B2 noun /rɒd/

rod

金属または木材の細長い棒

Meaning

a thin straight bar, especially of metal or wood

Example

He used an iron rod to support the structure.

彼は構造を支えるために鉄のロッドを使いました。

B2 verb /rɪˈkɔːl/

recall

思い出す

Meaning

to bring (a memory, fact, or situation) back into one's mind

Example

I can't recall the last time we met.

最後に会った時のことを思い出せません。

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。

B2 verb /rɒt/

rot

腐る

Meaning

to decay or decompose; to become corrupt

Example

The fruit will rot if left in the sun.

果物は日光に当たると腐ります。

B2 noun /ˈreɪn.dʒər/

ranger

レンジャー

Meaning

A person responsible for protecting and managing forests, parks, or natural areas.

Example

The park ranger guided the tourists through the forest trail.

公園のレンジャーは観光客を森の小道を案内しました。

B2 noun, verb /rɪˈzɔːrt/

resort

リゾート / 最後の手段

Meaning

A place for rest or recreation; to turn to something for help or solution.

Example

They stayed at a beach resort during their vacation.

彼らは休暇中にビーチリゾートに滞在しました。

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 /rɪˈzɪst/

resist

抵抗する

Meaning

to oppose or fight against; to withstand

Example

He could not resist the temptation.

彼は誘惑に抵抗できませんでした。

B2 verb /ˈruːɪn/

ruin

台無しにする

Meaning

to destroy or damage beyond repair; to spoil completely

Example

Heavy rain could ruin our picnic plans.

強い雨が私たちのピクニックの計画を台無しにするかもしれません。

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。

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。

B2 verb /rɪˈfreɪn/

refrain

控える

Meaning

To hold oneself back from doing something.

Example

Please refrain from smoking in this area.

このエリアでの喫煙はご遠慮ください。

B2 adjective /rɪˈlaɪ.ənt/

reliant

依存している

Meaning

depending on someone or something for support

Example

The country is too reliant on imported goods.

その国は輸入品に依存しすぎている。

B2 noun /ˌrɛvəˈleɪʃən/

revelation

啓示

Meaning

A surprising and previously unknown fact, especially one made known in a dramatic way.

Example

The book was full of shocking revelations about the politician.

その本はその政治家に関する衝撃的な啓示で満ちていました。

B2 adjective /rɪˈzɜːrvd/

Reserved

控えめな; 内向的な

Meaning

slow to reveal emotion or opinions; restrained in manner

Example

She is quite reserved and doesn't talk much in meetings.

彼女はかなり控えめで、会議ではあまり話しません。

B2 adjective ˌrev.əˈluː.ʃən.ər.i

revolutionary

革命的な

Meaning

Involving or causing a complete or dramatic change.

Example

Revolutionary ideas are reshaping the industry.

革命的なアイデアが業界を再編成しています。

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。

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。

B2 noun /rɪˈfreʃ.mənt/

Refreshment

軽食

Meaning

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

Example

We served light refreshments after the meeting.

会議の後、軽食を提供しました。

B2 verb /rɪˈzɛnt/

resent

恨む

Meaning

to feel bitterness or displeasure about something or someone

Example

She began to resent the constant criticism from her boss.

彼女は上司からの絶え間ない批判をリゼントし始めました。

B2 noun /ˈrɒbər/

robber

強盗

Meaning

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

Example

The robber was caught after a quick police chase.

素早い警察の追跡の後、強盗は捕まった。

B2 adverb /rɪˈpɔːtɪdli/

reportedly

報告によると

Meaning

according to what is said or believed, although not confirmed

Example

The company has reportedly agreed to the new terms.

その会社はreportedly新しい条件に同意しました。

B2 adjective /ˈrʌs.ti/

Rusty

錆びた; 練習不足; 最近の練習不足による障害

Meaning

affected by rust; out of practice; impaired by lack of recent practice

Example

My piano skills are rusty after not playing for years.

何年もピアノを弾いていなかったので、私のピアノのスキルは錆びついています。

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。

B2 noun /ˈrɒbəɹi/

robbery

強盗

Meaning

the crime of stealing from someone or somewhere using force or threat

Example

The police are investigating the robbery at the local store.

警察は地元の店での強盗事件を調査しています。

B2 verb /ˈræm.bəl/

ramble

Meaning

to talk or write at length in a confused or inconsequential way; to walk for pleasure without a fixed route.

Example

He rambled on about his childhood for hours.

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。

B2 adjective /ˈruːθ.ləs/

Ruthless

無慈悲な; 残酷な; 情け容赦ない

Meaning

showing no pity or compassion; cruel; merciless

Example

The ruthless dictator showed no mercy to his enemies.

その無慈悲な独裁者は、彼の敵に対して一切の慈悲を示さなかった。

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。

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 noun /ˈraɪət/

Riot

暴動; 騒乱

Meaning

a violent disturbance of the peace by a crowd; an uncontrolled outburst

Example

The peaceful protest turned into a riot when violence broke out.

平和的な抗議は暴力が起こったときに暴動に変わった。

B2 noun /ˈrɪk.ʃɔː/

Rickshaw

リクシャ

Meaning

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

Example

We took a rickshaw to reach the busy marketplace.

忙しい市場に到着するためにリクシャを利用しました。

B2 adjective /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 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 /rɪˈmeɪn.dər/

Remainder

残り; 余り

Meaning

the part that is left over; what remains after the other parts have been taken away

Example

The remainder of the food was stored in the refrigerator.

残りの食べ物は冷蔵庫に保存されました。

B2 noun ˌrɛzɪɡˈneɪʃən

resignation

辞任

Meaning

The acceptance of something undesirable but inevitable; giving up.

Example

Her resignation from the position was unexpected.

彼女の職からの辞任は予想外だった。

B2 noun ˌriːkənˈstrʌkʃn

reconstruction

再建

Meaning

The action or process of reconstructing or being reconstructed.

Example

The reconstruction project took years.

再建プロジェクトは数年かかりました。

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。

B2 adjective /ˈreɪʃəl/

racial

人種の

Meaning

relating to a race of people

Example

Racial equality is an important issue in many societies.

人種平等は多くの社会において重要な問題です。

B2 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。

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。

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。

B2 noun /ˈreɪsɪzəm/

racism

人種差別

Meaning

the belief that some races are superior to others, leading to unfair treatment or prejudice

Example

The organization works to eliminate racism in all forms.

その組織はすべての形態の人種差別を排除するために取り組んでいます。

B2 adjective /ˈrɪdən/

ridden

覆われた

Meaning

Full of or dominated by something unpleasant.

Example

The country was ridden with corruption.

その国は腐敗に覆われていた。

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。

B2 adjective ˌriːprəˈdʌktɪv

reproductive

繁殖に関する

Meaning

Relating to the reproduction of offspring.

Example

The reproductive cycle of pests can cause rapid infestations.

害虫の生殖サイクルは迅速な感染を引き起こす可能性があります。

B2 adjective /rɪˈflektɪv/

Reflective

反射的; 思慮深い; 光や画像を反射できる

Meaning

thoughtful; contemplative; able to reflect light or images

Example

After the meeting, he was in a reflective mood.

会議の後、彼は反射的な気分だった。

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。

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。

B2 noun /raɪˈnɒs.ər.əs/

Rhinoceros

サイ

Meaning

a large, heavy animal with thick skin and one or two horns on its nose

Example

The rhinoceros charged through the grassland.

サイは草原を突進した。

B2 noun /ˈræŋkɪŋ/

ranking

ランキング

Meaning

a position in a list or hierarchy, especially in terms of performance or importance

Example

His ranking in the competition improved after each round.

彼の競技でのランキングは、各ラウンド後に向上しました。

B2 verb /ˌriː.kənˈsɪd.ər/

reconsider

再考する

Meaning

to think about something again, especially to change a decision or opinion

Example

She decided to reconsider her decision about moving abroad.

彼女は海外に引っ越すという決断を再考することに決めました。