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C1 verb /rɪˈkaʊnt/

recount

語る
Meaning
to narrate or tell the details of an event or experience
Example
She recounted her adventures during the summer trip.
彼女は夏の旅行中の冒険について語った。
B2 verb /rɪˈtriːv/

retrieve

取り戻す
Meaning
to get something back that was lost or taken; to recover
Example
She managed to retrieve her lost phone from the taxi.
彼女はタクシーから失われた電話を取り戻すことができました。
B1 adverb /ˈrel.ə.tɪv.li/

Relatively

相対的に
Meaning
in comparison to something else; quite; fairly
Example
The weather is relatively warm today.
今日の天気は相対的に暖かい。
C2 adjective /ˈrɛpərəbəl/

reparable

修理可能
Meaning
able to be repaired or fixed
Example
The damage to the car was serious but still reparable.
車の損傷は深刻だったが、それでも修理可能だった。
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。
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。
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。
C1 adjective /ˈruːfəl/

rueful

後悔した
Meaning
Expressing sorrow, regret, or pity.
Example
He gave a rueful smile after losing the match.
試合に負けた後、彼は後悔の笑顔を見せた。
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 /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。
C1 adjective /ˈræspi/

raspy

ハスキー
Meaning
having a harsh, rough, or grating sound
Example
His raspy voice revealed years of smoking.
彼のハスキーな声は喫煙の年数を明らかにした。
C1 noun/verb /rɪˈlæps/

relapse

再発
Meaning
to return to a worse condition, especially after improvement; a deterioration after recovery
Example
After months of progress, he suffered a relapse.
数ヶ月の進歩の後、彼は再発しました。
C1 noun /rɪˈflɛktər/

reflector

反射器
Meaning
A surface or device that reflects light, heat, or sound, often used to direct beams or improve visibility.
Example
The cyclist attached a red reflector to the back of his bike for safety.
自転車のライダーは安全のために自分の自転車の後ろに赤い反射器を取り付けました。
B2 noun /ˈrɛfjuːdʒ/

refuge

避難所
Meaning
a place that provides shelter or protection from danger or distress
Example
The villagers took refuge in the temple during the storm.
村人たちは嵐の間、寺院に避難した。
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。
C1 noun /roʊt/

rote

暗記
Meaning
mechanical or habitual repetition, often without understanding
Example
He learned the poem by rote without understanding its meaning.
彼はその詩を意味を理解せずに暗記しました。
C1 noun /rɪˈfɜːrər/

referrer

紹介者
Meaning
a person who directs someone to another person or service
Example
The referrer earned a bonus for recommending a new client.
紹介者は新しい顧客を推薦したことでボーナスを得ました。
C1 verb /rɪˈvɜːrbəreɪt/

reverberate

反響する
Meaning
To echo repeatedly or have continuing effects.
Example
The sound of the explosion reverberated through the valley.
爆発音は谷を通り過ぎて反響しました。
C1 verb /ˌriːɪnˈtɪɡreɪt/

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。
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。
A2 noun /ˈriːdɪŋ/

reading

読書
Meaning
the action or skill of reading
Example
Reading is one of my favorite hobbies.
読書は私の好きな趣味の一つです。
B2 noun /ˈreɪ.dɑːr/

Radar

レーダー
Meaning
a system for detecting the presence, direction, distance of aircraft, ships by sending out radio waves
Example
The radar detected an unknown aircraft approaching the base.
レーダーは基地に接近する未知の航空機を検出しました。
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。
B1 preposition /rɪˈɡɑrdɪŋ/

regarding

に関して
Meaning
concerning or relating to
Example
The decision regarding the meeting will be made tomorrow.
会議に関する決定は明日行われます。
B1 noun /ˈrɛzɪdəns/

residence

レジデンス
Meaning
a place where someone lives; a home or dwelling
Example
He recently moved to a new residence near the city center.
彼は最近、市内中心部近くの新しいレジデンスに引っ越しました。
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。
C1 adjective /ˈrʌs.tɪk/

Rustic

シンプルで洗練されていない; 農村地域に関連
Meaning
simple and unsophisticated; relating to rural areas
Example
The rustic cottage had wooden beams and a thatched roof.
そのラスティックな小屋は木製の梁と藁葺きの屋根を持っていた。
C1 adjective /rɪˈsɛptɪv/

receptive

受容的
Meaning
Willing to listen to or accept new ideas, suggestions, or experiences.
Example
She was receptive to feedback from her colleagues.
彼女は同僚からのフィードバックを受け入れる姿勢を持っていました。
B1 noun /ˈreɪlˌroʊd/

railroad

鉄道
Meaning
a track or system of tracks made of steel rails along which trains run
Example
The railroad connects the city to several nearby towns.
鉄道は都市といくつかの近くの町を結びつけています。
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。
C1 noun /ˈrɛɡjəleɪtər/

regulator

調整装置
Meaning
a person or device that controls or maintains the operation of a system
Example
The government appointed a new regulator for the financial sector.
政府は金融セクターの新しい規制機関を任命した。
C1 noun /ˈrɛpərˌtɔːri/

repertory

レパートリー
Meaning
A collection of works that a company, performer, or institution regularly performs; also a storehouse of information or skills.
Example
The theater has a repertory of classic plays.
劇場にはクラシックな演劇のレパートリーがあります。
A2 noun /rɪˈlɪdʒ.ən/

religion

宗教
Meaning
a system of faith and worship involving belief in a higher power
Example
Freedom of religion is a fundamental human right.
宗教の自由は基本的人権です。
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。
C2 verb /ruː/

rue

後悔する
Meaning
To feel regret or sorrow about something.
Example
She will rue the day she trusted him.
彼女は彼を信じたその日を後悔するだろう。
B2 noun /ˈreɪ.zən/

Raisin

レーズン
Meaning
dried grape
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ました。
C1 noun ˈremnənts

remnants

遺物
Meaning
A small remaining quantity of something; a surviving trace.
Example
The remnants of the wall are still visible.
壁の遺物はまだ見える。
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。
C1 verb rɪˈlɪŋ.kwɪʃ

relinquish

放棄する
Meaning
To give up any authority, responsibility, or property.
Example
He decided to relinquish his position as CEO.
彼はCEOのポジションを放棄することに決めました。
C1 noun/verb /rɪˈpoʊz/

repose

休息
Meaning
a state of rest, sleep, or tranquility; to rest or lie in a peaceful position
Example
After the long journey, she sought repose in the quiet garden.
長い旅の後、彼女は静かな庭で休息を求めた。
C2 adjective /rɪˈzɪstləs/

resistless

抗えない
Meaning
Impossible to resist; having an overpowering effect.
Example
She felt a resistless urge to laugh at the joke.
彼女はジョークで笑いたいという抗えない衝動を感じた。
B2 verb /ˈrɛkən/

reckon

推測する
Meaning
To think, believe, or expect something; to calculate or estimate.
Example
I reckon it will rain later today.
今日は後で雨が降るだろうと思います。
A2 noun /ruːlz/

rules

ルール
Meaning
explicit principles or regulations governing conduct or procedure within a particular area of activity
Example
The teacher reminded the students to follow the classroom rules.
先生は生徒にクラスのルールに従うように注意しました。
B2 noun /red liːf/

Red leaf

赤い葉
Meaning
red-colored leafy vegetable; amaranth leaves used as greens
Example
Red leaf is rich in iron and is commonly eaten in Bengali households.
赤い葉は鉄分が豊富で、ベンガルの家庭でよく食べられます。
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 noun /ræɡ/

Rag

古い布; 掃除に使われる擦り切れた衣類
Meaning
a piece of old cloth used for cleaning; worn-out clothing
Example
She used an old rag to clean the dusty table.
彼女は古い布を使って、ほこりだらけのテーブルを掃除しました。
C1 adjective /ˈrævənəs/

ravenous

猛烈にお腹がすいている
Meaning
Extremely hungry; famished.
Example
After the long hike, she was ravenous and ate quickly.
長いハイキングの後、彼女は猛烈にお腹がすいて、すぐに食べました。
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。
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。
B2 verb /rɪˈɡeɪn/

regain

回復する
Meaning
to get back something that was lost; to recover
Example
He regains his strength after the illness.
彼は病気の後、力を回復する。
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。
B2 noun ˌrɛstəˈreɪʃən

restoration

修復
Meaning
The process of returning something to its former condition.
Example
The restoration of the forest began after decades of neglect.
森林の修復は数十年の放置後に始まりました。
C1 adjective /rɪˈsɔːrs ɪˈfɪʃ.ənt/

resource-efficient

資源効率的
Meaning
Using resources in a way that minimizes waste and maximizes productivity.
Example
Resource-efficient farming conserves water and energy.
資源効率的な農業は、水とエネルギーを節約します。
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。
C2 verb /ˌriːkruːˈdɛs/

recrudesce

再発
Meaning
to break out or appear again after a period of dormancy or decline
Example
After months of calm, violence recrudesced in the region.
数ヶ月の静けさの後、暴力が再発しました地域で。
C1 noun /ˌrev.əˈluː.ʃən.ər.i ˈbreɪk.θruː/

revolutionary breakthrough

革命的な発見
Meaning
A sudden, dramatic, and important discovery or development that changes everything.
Example
Robotic surgery is a revolutionary breakthrough in healthcare.
ロボット手術は医療分野での革命的な発見です。
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 verb /rɪˈzaɪd/

reside

住む
Meaning
to live or dwell in a particular place
Example
They reside in a large house near the river.
彼らは川の近くの大きな家に住んでいます。
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。
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。
B1 noun raɪts

rights

権利
Meaning
A moral or legal entitlement to have or obtain something or to act in a certain way.
Example
The rights of people were prioritized.
人々の権利は優先されました。
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 /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。
C1 noun /rɪˈbʌtəl/

rebuttal

反論
Meaning
a statement or argument made to oppose or disprove another
Example
Her rebuttal was clear and convincing.
彼女の反論は明確で説得力がありました。
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。
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。
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。
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 /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。
B2 noun /rɪˈzembləns/

Resemblance

類似
Meaning
the state of being alike or similar; similarity in appearance or character
Example
There's a strong resemblance between the two sisters.
二人の姉妹の間には強い類似があります。
B1 adjective ˈriː.dʒən.əl

regional

地域の
Meaning
Relating to or characteristic of a region.
Example
Regional hubs support localized industries.
地域のハブは地元産業をサポートします。
B1 noun riˈækʃən

reaction

反応
Meaning
An action performed or a feeling experienced in response to a situation or event.
Example
The arrests triggered a reaction.
逮捕は反応を引き起こしました。
B2 verb /rɪˈliːv/

relieve

Meaning
to make pain, distress, or difficulty less severe or serious
Example
The medicine helped relieve his headache.
C1 verb /rɪˈmjuːnəreɪt/

remunerate

報酬を支払う
Meaning
To pay someone for services or work done.
Example
The company will remunerate employees fairly for their overtime.
会社は残業に対して従業員に公正な報酬を支払います。
C1 verb /rɪˈtɔːrt/

retort

反論
Meaning
To reply quickly or sharply, often in a witty or angry manner.
Example
He quickly retorted that he was not to blame.
彼は素早く反論した、彼が悪くないと言った。
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。
A1 verb /riːd/

read

読む
Meaning
to look at written words and understand their meaning
Example
I read books before going to bed.
私は寝る前に本を読みます。
C1 adjective /rɪˈtæl.i.ə.tɔːr.i/

retaliatory

報復的
Meaning
Taking action in response to another's action, characterized as punitive, revengeful, or counteractive.
Example
The country imposed retaliatory tariffs in response to trade sanctions.
その国は貿易制裁に対して報復的な関税を課しました。
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.
C1 adjective /rɪˈdʒɛn.ə.rə.tɪv/

regenerative

再生的な
Meaning
Able to restore or renew damaged environments, soil, or resources.
Example
Regenerative farming improves soil health and biodiversity.
再生農業は土壌の健康と生物多様性を改善します。
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 adjective /ˈræmʃækəl/

ramshackle

ぼろぼろ
Meaning
poorly built or maintained; in a state of disrepair
Example
They lived in a ramshackle old house on the edge of town.
彼らは町の端にあるぼろぼろな古い家に住んでいました。
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。
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 noun /ˈrɛnɪˌɡeɪd/

renegade

裏切り者
Meaning
a person who deserts or betrays an organization, country, or principles
Example
He was labeled a renegade after leaving the party and criticizing its policies.
彼は党を離れ、その政策を批判した後、裏切り者と見なされた。
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。
C1 verb /ˈræn.sæk/

ransack

略奪する
Meaning
to search a place roughly and steal or damage things
Example
Burglars ransacked the house while the family was away.
泥棒たちは家族が留守の間に家を荒らした。
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 verb /rɪˈstreɪn/

restrain

抑制する
Meaning
to hold back or control; to limit or restrict
Example
Please restrain your dog.
犬を制御してください。
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。
B1 noun /ˈreɪn.boʊ/

Rainbow

虹
Meaning
an arch of colors formed in the sky by sunlight shining through rain
Example
After the storm, a beautiful rainbow appeared in the sky.
嵐の後、空に美しい虹が現れました。
C1 noun /ˈreɪdiəns/

radiance

輝き
Meaning
the quality of shining with bright light; a glowing or beaming quality
Example
Her face was filled with radiance after hearing the good news.
良いニュースを聞いた後、彼女の顔は輝きで満ちていました。
C2 noun /ˌrɛtəˈrɪʃən/

rhetorician

雄弁家
Meaning
A person who is skilled in the art of rhetoric or persuasive speaking/writing.
Example
The rhetorician captivated the audience with his eloquence.
雄弁家はその雄弁さで聴衆を魅了しました。
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 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 noun /raɪm/

rime

霜
Meaning
frost formed on cold surfaces by freezing water vapor
Example
The trees were covered with a white rime after the cold night.
木々は冷たい夜の後、白い霜で覆われていました。
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 verb /ˌriːɪnˈsteɪt/

reinstate

再雇用する
Meaning
To restore someone or something to their former position or condition.
Example
The company decided to reinstate the suspended employee.
その会社は停止された従業員を再雇用することを決定した。
C1 verb /ˈreɪdieɪt/

radiate

放射する
Meaning
to emit energy or light; to spread out from a center
Example
The fireplace radiates warmth throughout the room.
暖炉は部屋全体に暖かさを放射します。
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。
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。
B2 verb /rɪˈkleɪm/

reclaim

Meaning
To take back or recover something; to restore to a usable state.
Example
The farmer worked to reclaim the barren land.
C2 adjective /ˌrɛpərˈtɔːriəl/

repertorial

レポートに関する
Meaning
Relating to or characteristic of a repertoire, especially in journalism or performance contexts.
Example
The journalist's repertorial style captured every detail of the unfolding story.
そのジャーナリストのレポーティオリアルスタイルは、展開するストーリーのあらゆる詳細を捉えました。
A2 verb /rɪˈkwaɪər/

require

必要とする
Meaning
to need something; to demand or insist on
Example
This job requires excellent communication skills.
この仕事には優れたコミュニケーションスキルが必要です。
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。
C2 noun /ˌriːkəˌpɪtjʊˈleɪʃən/

recapitulation

要約
Meaning
The act of summarizing or repeating the main points of something.
Example
The professor gave a brief recapitulation of the lecture before ending the class.
教授はクラスを終える前に講義の簡単な要約を行いました。
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。
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。
A2 verb /rɪˈpiːt/

repeat

繰り返す
Meaning
to say or do something again
Example
Could you please repeat what you just said?
今言ったことを繰り返してくれますか？
C2 noun /ræpˈskæliən/

rapscallion

いたずら好きな人
Meaning
A mischievous or cheeky person; a rascal.
Example
The little rapscallion hid his brother’s shoes as a prank.
小さなラプスカリオンは兄の靴をいたずらで隠した。
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。
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 noun /rɪˈmaɪndər/

reminder

リマインダー
Meaning
something that helps you remember a fact, event, or action that you need to do or recall
Example
He set a reminder to call his mother on her birthday.
彼は母親の誕生日に電話するためにリマインダーを設定しました。
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。
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 /ˈrɛz.ə.nəns/

resonance

共鳴
Meaning
A deep, reverberating sound or a quality of evoking response.
Example
His speech had a deep resonance with the audience.
彼のスピーチは観客に深い共鳴を与えた。
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 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。
B1 noun riˈæləti

reality

現実
Meaning
The world or the state of things as they actually exist, as opposed to an idealistic or notional idea.
Example
The reality of the situation was evident.
状況の現実は明らかでした。
B2 noun /ˈrɪk.ʃɔː/

Rickshaw

リクシャ
Meaning
a light two-wheeled passenger vehicle drawn by one or more people
Example
We took a rickshaw to reach the busy marketplace.
忙しい市場に到着するためにリクシャを利用しました。
C1 adjective ˈriːdʒən spəˈsɪfɪk

region-specific

地域特有
Meaning
Relating to or characteristic of a particular region or area.
Example
Climate change impacts are region-specific.
気候変動の影響は地域特有です。