rubicund
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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。
A2 adjective /ruːd/

Rude

失礼な; 無礼な; 粗野な; 厳しい
Meaning
impolite; discourteous; lacking civility; rough or harsh in manner
Example
It was rude of him to interrupt the meeting.
会議を中断することは失礼でした。
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。
B1 verb /rʌb/

rub

こする
Meaning
to press and move something firmly against a surface; to apply pressure with movement
Example
She rubbed her hands together to keep them warm.
彼女は手をこすり合わせて暖かく保った。
B2 noun /ˈriːteɪlər/

retailer

小売業者
Meaning
a person or business that sells goods to consumers rather than to other businesses
Example
The retailer offers discounts on electronic products.
小売業者は電子製品に割引を提供しています。
C1 verb rɪˈpel

repel

反発する
Meaning
To push away or force apart due to similar charges or properties.
Example
Protons repel each other.
陽子はお互いに反発し合う。
C1 verb /rænt/

rant

怒鳴る
Meaning
to speak or shout in an angry, uncontrolled way
Example
He ranted about the unfair treatment at work.
彼は仕事で不公平な扱いについて叫んでいました。
B1 noun /ˌrep.rɪˈzen.tə.tɪv/

representative

代表者
Meaning
A person chosen or appointed to act or speak for another or others.
Example
The representative addressed critical issues.
代表者は重要な問題に対処しました。
C2 adjective /ˈroʊziət/

roseate

バラ色の、楽観的な
Meaning
Having a pink color; optimistic or idealistic.
Example
She looked at the future with roseate optimism.
彼女はローズ色の楽観主義で未来を見ました。
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。
B2 adjective /ˈrɒt.ən/

Rotten

腐った; 悪い
Meaning
decayed; spoiled; bad
Example
The apple is rotten and should be thrown away.
リンゴは腐っていて、捨てるべきです。
C1 verb /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 verb /ˌriːəˈfɜːrm/

reaffirm

再確認する
Meaning
To state again strongly; to confirm or strengthen a statement or belief.
Example
The president reaffirmed his commitment to education reform.
大統領は教育改革への取り組みを再確認した。
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。
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。
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。
C1 verb /riːˈkæptʃər/

recapture

再び奪回する
Meaning
To take back or regain possession of something.
Example
The army managed to recapture the lost territory.
軍隊は失われた領土を再び奪回することに成功しました。
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 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。
B1 noun ˌrek.ə.menˈdeɪ.ʃənz

recommendations

推薦
Meaning
Suggestions or proposals as to the best course of action.
Example
The commission submitted their recommendations.
委員会はその推薦を提出しました。
C2 adjective /rɪˈtɪkjʊlət/

reticulate

網状
Meaning
Having a net-like pattern or structure.
Example
The leaf had a reticulate pattern of veins.
葉は網目模様の静脈がありました。
C1 noun /rɪˈtriː.vəl/

retrieval

回復
Meaning
The process of getting something back, especially from storage or memory.
Example
The brain's retrieval system helps recall past experiences.
脳のリトリーバルシステムは過去の経験を思い出すのに役立ちます。
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。
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。
C2 noun /ˈrɛvəlri/

revelry

祭り
Meaning
Lively and noisy festivities, especially involving drinking and dancing.
Example
The sound of revelry could be heard throughout the night.
一晩中、祭りの音が聞こえていました。
B1 verb /rɪˈper/

repair

修理する
Meaning
to fix something that is broken or damaged
Example
The mechanic will repair the car's engine tomorrow.
メカニックは明日車のエンジンを修理します。
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。
B2 noun /ˈraɪvəl/

Rival

ライバル; 競争相手;
Meaning
a person or thing competing with another for the same objective or for superiority in the same field
Example
The two companies have been business rivals for decades.
二つの企業は何十年もの間、商業上のライバルです。
C2 verb (archaic/rare) /rɛk/

reck

気にする
Meaning
To care about or be concerned with (something); to have regard for.
Example
He does not reck the dangers of his actions.
彼は自分の行動の危険を気にしない。
C2 adjective /rɪˈdjuːsəbl̩/

reducible

Meaning
capable of being simplified, lessened, or made smaller
Example
The problem is complex but reducible to a few basic principles.
C1 noun/verb /rɪˈpriːv/

reprieve

Meaning
A temporary relief or delay from something unpleasant; to postpone or cancel punishment.
Example
The prisoner was granted a last-minute reprieve from execution.
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 noun /ˌrækənˈtɜːr/

Raconteur

幸せ
Meaning
a person who tells anecdotes in a skillful and amusing way
Example
The old man was a gifted raconteur who entertained everyone with his stories.
彼女は賞を受け取ったとき、喜びを隠せなかった。
B1 noun /ˈrʌnər/

runner

幸せ
Meaning
a person who runs, especially in races or for exercise
Example
The runner crossed the finish line with a big smile.
彼女は賞を受け取ったとき、幸せを隠せなかった。
C2 adjective /roʊn/

roan

ロアン馬
Meaning
denoting an animal, especially a horse, having a coat of mixed colors, typically reddish-brown and white
Example
The rider mounted a roan horse with a speckled coat.
騎手は斑点のあるコートを持ったロアン馬に乗った。
B1 adjective /ˌriːəˈlɪstɪk/

realistic

現実的
Meaning
having or showing a sensible and practical idea of what can be achieved or expected
Example
She gave a realistic estimate of the project's cost.
彼女はプロジェクトのコストの現実的な見積もりを出した。
B2 noun /ˌrɪəlɪˈzeɪʃən/

realization

実現
Meaning
the act of becoming fully aware of something as a fact
Example
Her realization of the problem helped solve the issue.
彼女の問題の認識が問題解決に役立った。
C1 noun ˌræʃ.ən.əl.ɪˈzeɪ.ʃən

rationalization

合理化
Meaning
The practice of finding reasons for behavior or actions that are not the real reasons.
Example
His rationalization of the mistake was not convincing.
彼の間違いの合理化は説得力がなかった。
A2 noun /ˈriːdər/

reader

読者
Meaning
a person who reads or who is capable of reading
Example
She is a fast reader, finishing books in a day.
彼女は速読者で、1日で本を読み終えます。
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。
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。
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。
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。
C2 adjective /ˈrɛkənˌsaɪləbl̩/

reconcilable

Meaning
Capable of being resolved or made consistent.
Example
Their differences are reconcilable with honest communication.
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.
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 verb /ˌriː.kənˈstrʌkt/

reconstruct

再建する
Meaning
to build or form something again after it has been damaged or destroyed
Example
The city was reconstructed after the earthquake.
その都市は地震後に再建されました。
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。
B1 noun /rɪˈsɜːtʃə(r)/

researcher

研究者
Meaning
a person who conducts research
Example
The researcher published her findings in a scientific journal.
研究者は科学的なジャーナルに彼女の研究結果を発表しました。
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。
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。
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 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。
C1 verb /ˈrʌsl/

rustle

ささやく
Meaning
To make a soft, light sound like leaves or paper moving.
Example
The leaves rustled gently in the evening breeze.
葉っぱが夕方のそよ風でそっとささやいていました。
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 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。
C1 adjective rɪˈsɛʃ.ən.er.i

recessionary

不況に関する
Meaning
Relating to or characterized by economic recession.
Example
Governments introduce policies to counter recessionary effects.
政府は景気後退の影響に対処するために政策を導入しています。
B2 verb /reɪd/

raid

踏み込む
Meaning
to attack suddenly; to search and seize
Example
Police raid the illegal gambling house.
警察は違法なギャンブルの家に踏み込む。
B2 noun ˌreɪdɪˈeɪʃən

radiation

放射線
Meaning
The emission of energy as electromagnetic waves or as moving subatomic particles.
Example
Radiation from the sun can be harmful without protection.
太陽からの放射線は保護なしでは有害である可能性があります。
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 noun /ˈrʌbɪʃ/

Rubbish

ゴミ; 無駄な物; ナンセンス
Meaning
waste material; refuse or litter; nonsense or worthless things
Example
Please throw the rubbish in the bin.
ゴミをゴミ箱に捨ててください。
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。
C1 verb /ˈrʌf.l̩/

ruffle

Meaning
to disturb the smoothness of something; to annoy or upset someone
Example
The wind ruffled her hair.
A1 noun /ˈrɛst(ə)rɒnt/

restaurant

レストラン
Meaning
a place where meals are prepared and served to customers
Example
We went to the restaurant for dinner.
私たちは夕食のためにレストランに行きました。
B2 noun rɪˈsɛʃ.ən

recession

景気後退
Meaning
A period of temporary economic decline during which trade and industrial activity are reduced.
Example
The country faced a severe recession due to the financial crisis.
その国は金融危機のため深刻な景気後退に直面した。
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。
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 adjective /rɪˈlɪdʒəs/

Religious

宗教的; 信心深い; 精神的; 宗教に関連する;
Meaning
relating to or believing in a religion; devout; spiritual;
Example
He comes from a very religious family.
彼は非常に宗教的な家庭から来ています。
C1 noun ˌrev.əˈluː.ʃən.ər.i ɪˈnɪʃ.ə.tɪv

revolutionary initiative

革命的イニシアティブ
Meaning
A groundbreaking action or plan that brings about significant change or transformation.
Example
The revolutionary initiative promotes sustainable energy.
革命的なイニシアティブは持続可能なエネルギーを促進します。
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。
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 noun /rɪft/

rift

亀裂
Meaning
a serious break in a relationship; a split or crack
Example
A rift developed between the two friends after the argument.
議論の後、二人の友達の間に亀裂が生じた。
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 /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。
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。
B1 noun /rɪˈsep.ʃən/

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。
A2 noun /ˈruːlər/

ruler

支配者; 定規
Meaning
A person who governs or controls a country; a straight-edged tool used for measuring or drawing lines
Example
The ruler drew a straight line on the paper while the king was a powerful ruler of his kingdom.
ルーラーは紙にまっすぐな線を引き、王は自分の王国の強力な支配者でした。
C1 noun /rəʊˈbɒt.ɪk ˈsɜː.dʒər.i/

robotic surgery

ロボット手術
Meaning
Surgery performed with the assistance of robotic systems to enhance precision and reduce invasiveness.
Example
Robotic surgery enhances precision in complex procedures.
ロボット手術は複雑な手順で精度を高めます。
C2 noun /rɪˈkwaɪtəl/

requital

報復
Meaning
The act of returning something, such as a favor, service, or punishment; repayment or retaliation.
Example
She offered her time in requital for his kindness.
彼女は彼の親切に報復として自分の時間を提供しました。
C1 adjective /ˈrɛvərənt/

reverent

敬虔な
Meaning
Showing deep and solemn respect.
Example
They listened to the speech in a reverent silence.
彼らは敬虔な沈黙の中でスピーチを聞いた。
C1 noun ˌriː.pɚˈkʌʃ.ənz

repercussions

影響
Meaning
The unintended consequences or effects of an action or event.
Example
The new policy had unintended repercussions on the economy.
新しい政策は経済に予期しない影響を与えました。
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。
C1 verb /ˈrevəl/

revel

楽しむ
Meaning
to enjoy oneself in a lively and noisy way; to take great pleasure in
Example
They revel in their success.
彼らは成功を楽しんでいます。
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。
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。
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。
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。
C2 adjective /rɪˈsplɛndənt/

resplendent

輝かしい
Meaning
Shining brilliantly; dazzling in appearance or effect
Example
The bride looked resplendent in her wedding gown.
花嫁はウェディングドレスで輝いて見えました。
C1 noun /ˈrʌbəl/

rubble

瓦礫
Meaning
Broken stone, bricks, or debris from a collapsed building or structure.
Example
The rescue team searched through the rubble after the earthquake.
地震後、救助隊は瓦礫の中を探しました。
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。
C2 verb /rɪˈkænt/

recant

撤回する
Meaning
to withdraw or renounce a statement or belief formally
Example
He recanted his previous statement in court.
彼は裁判で以前の発言を撤回しました。
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。
B1 noun rɪˈdʌk.ʃən

reduction

削減
Meaning
The action or fact of making a specified thing smaller or less in amount, degree, or size.
Example
Greenhouse gas reduction is a primary global goal.
温室効果ガスの削減は主要な地球規模の目標です。
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。
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。
C1 verb /rɪˈvɪər/

revere

尊敬する
Meaning
To deeply respect or admire someone or something.
Example
The students revered their teacher for his wisdom.
生徒たちはその知恵に対して教師を崇敬しました。
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 /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。
C1 verb /rɪˈpiːl/

repeal

Meaning
To officially cancel or revoke a law or decision.
Example
The government decided to repeal the outdated law.
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。
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。
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。
C1 adjective /ˈrʌɡ.ɪd/

Rugged

でこぼこで不規則な; 不規則な表面を持つ; 強くて丈夫な
Meaning
rough and uneven; having a rough irregular surface; tough and strong
Example
The hikers crossed the rugged mountain terrain.
ハイカーたちは荒れた山岳地帯を越えた。
C1 adjective /rɪˈɡrɛtfəl/

regretful

後悔している
Meaning
feeling or showing sadness or disappointment about something that has happened or been done
Example
She gave him a regretful smile as she turned away.
彼女は振り返りながら後悔している笑顔を彼に向けた。
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。
C2 adjective /rɪˈfjuː.tə.bəl/

Refutable

反証可能
Meaning
capable of being proven wrong or false; able to be disproved
Example
His theory was refutable because it could be tested experimentally.
彼の理論は実験的にテストできるので反証可能でした。
B2 noun /ˌrek.riˈeɪ.ʃən/

Recreation

レクリエーション活動; 何かを再び存在させるプロセス
Meaning
an activity that is done for enjoyment; the process of making something exist again
Example
The park provides recreation facilities for children and adults.
公園は子供と大人のためにレクリエーション施設を提供しています。
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.
B1 noun /ˈreɪn.dɪər/

Reindeer

トナカイ
Meaning
a large deer with branched horns that lives in cold northern areas
Example
Santa's reindeer pulled his sleigh across the sky.
サンタのトナカイは空を越えてソリを引きました。
B1 verb /rɪˈflekt/

reflect

反映する
Meaning
to think deeply about; to mirror back light or image
Example
The mirror reflects her beautiful face.
鏡は彼女の美しい顔を反映しています。
A2 noun reɪndʒ

range

範囲
Meaning
The extent or scope of something; the distance that can be covered or the limits within which something operates.
Example
The new electric car has a range of 400 miles.
新しい電気自動車の範囲は400マイルです。
B1 verb /ˈreskjuː/

rescue

救助する
Meaning
to save someone or something from danger or harm
Example
The firefighters rescued the cat from the tree.
消防士は木から猫を救助しました。
C1 verb /ˌrekəˈlekt/

recollect

思い出す
Meaning
to remember something; to recall from memory
Example
I can't recollect where I put my keys.
鍵をどこに置いたか思い出せません。
C1 adjective /rɪˈsɪ.prə.kəl/

Reciprocal

相互の; 互恵的な; 両者で平等に分け合う;
Meaning
given or done in return; mutual; shared equally by both parties;
Example
The two countries have a reciprocal trade agreement.
二国間には相互の貿易協定があります。
B2 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/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。
B1 adjective /ˈrel.ə.vənt/

Relevant

関連する
Meaning
closely connected or appropriate to what is being discussed; pertinent
Example
Please provide only relevant information for this discussion.
この議論に関連する情報のみを提供してください。
C1 verb /rɪˈvoʊk/

revoke

取り消す
Meaning
To officially cancel or withdraw a decision, privilege, or right.
Example
The government decided to revoke his passport.
政府は彼のパスポートを取り消すことを決定した。
C1 noun /ræmˈbuːtən/

Rambutan

ランブータン
Meaning
a tropical fruit with red spiky skin and white translucent sweet flesh similar to litchi
Example
The rambutan looks scary with its hairy skin but tastes very sweet inside.
ランブータンは毛皮のような皮で怖そうに見えますが、中はとても甘いです。
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。
C2 verb /ˈræŋ.kəl/

rankle

イライラさせる
Meaning
To cause continuing annoyance or resentment.
Example
His unfair criticism continued to rankle her for days.
彼の不公平な批判は何日も彼女をイライラさせ続けた。