B2 adverb /ˈræp.ɪd.li/

Rapidly

速やかに; 急速に

Meaning

at a fast speed; quickly

Example

The company is rapidly expanding into new markets.

会社は新しい市場に急速に拡大しています。

B1 adjective /rɪˈdɪk.jə.ləs/

Ridiculous

馬鹿げた; ばかばかしい; 不合理な

Meaning

extremely silly or unreasonable; deserving or causing laughter

Example

The idea of building a house without tools is ridiculous.

道具なしで家を建てるアイデアは馬鹿げている。

A2 verb /rɪˈplaɪ/

reply

返事する

Meaning

to give an answer; to respond

Example

She replies to emails quickly.

彼女はすぐにメールに返信します。

C1 noun /rɪˈdʒɪdəti/

Rigidity

剛性

Meaning

inability to bend or be forced out of shape; unwillingness to change or compromise

Example

The rigidity of the old system prevented any innovation.

古いシステムの剛性は、どんな革新も妨げました。

C1 adjective /ˈrep.jə.tə.bəl/

Reputable

評判の良い

Meaning

having a good reputation; respected and trusted

Example

She works for a reputable law firm in the city.

彼女はその都市の評判の良い法律事務所で働いています。

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 noun /ˈrɛspɪt/

respite

休息

Meaning

A short period of rest or relief from something difficult or unpleasant.

Example

The weekend provided a welcome respite from work.

週末は仕事からの歓迎される休息を提供しました。

B2 adverb /rɪˈspektɪvli/

Respectively

それぞれ; 指定された順序で; 別々に、そしてすでに言及された順序で

Meaning

in the order given; separately and in the order already mentioned

Example

John and Mary are 25 and 30 years old respectively.

ジョンとメアリーはそれぞれ25歳と30歳です。

C1 noun /raɪt/

rite

儀式

Meaning

a religious or ceremonial act

Example

The wedding rite was performed with great solemnity.

結婚式の儀式は厳粛に行われました。

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。

A2 verb /rɪˈtɜːrn/

return

帰る

Meaning

to come or go back to a place; to give back

Example

I will return home tomorrow.

私は明日家に帰ります。

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。

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 /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 noun /riːm/

ream

リーム

Meaning

A large quantity of paper (typically 500 sheets); informally, a large amount of something.

Example

The office ordered ten reams of paper.

オフィスは10リームの紙を注文した。

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 /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 /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.

C1 adjective /rɪˈdʌn.dənt/

redundant

冗長な

Meaning

Not or no longer needed or useful; superfluous.

Example

The report contained redundant information.

その報告書には冗長な情報が含まれていました。

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 adjective /ˈriː.fleks/

Reflex

反射

Meaning

an action performed without conscious thought; relating to reflection

Example

The doctor tested her reflex response by tapping her knee.

医師は彼女の膝を軽く叩いて反射的な反応をテストしました。

C1 verb /rɪˈdiːm/

redeem

償う

Meaning

to compensate for faults or mistakes; to exchange something for value

Example

He managed to redeem his reputation after the scandal.

彼はスキャンダル後に自分の評判を回復しました。

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。

C2 noun /ˈrɛdʒɪsaɪd/

regicide

王殺し

Meaning

the act of killing a king

Example

The conspirators were executed for committing regicide.

陰謀者たちは王殺しを犯したため、処刑されました。

C1 noun /ˌræʃəˈnæl/

rationale

根本的な理由

Meaning

the underlying reason or explanation for something

Example

The rationale behind his decision was clearly explained.

彼の決断の背後にある理由は明確に説明されました。

B2 verb /ˌriːjuˈnaɪt/

reunite

再会する

Meaning

to bring together again after separation

Example

The family was reunited after many years.

その家族は何年も後に再会しました。

C1 adjective /ˈrɛtɪsənt/

reticent

控えめ

Meaning

not revealing one's thoughts or feelings readily; reserved

Example

She was reticent about her personal life.

彼女は自分の個人的な生活について控えめでした。

B1 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。

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。

C1 verb /rɪˈfjuːt/

refute

反論する

Meaning

To prove a statement, argument, or theory to be false or invalid.

Example

The lawyer refuted the witness's testimony with solid evidence.

弁護士は証人の証言を確かな証拠で反論しました。

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。

C2 adjective /rɪˈmjuːnərətɪv/

remunerative

利益がある

Meaning

Financially rewarding or profitable.

Example

He chose a remunerative career in medicine.

彼は医学の中で利益のあるキャリアを選びました。

B2 noun ˌrɛvəˈluːʃən

revolution

革命

Meaning

A forcible overthrow of a government or social order, in favor of a new system.

Example

The story is set during the French Revolution.

物語はフランス革命の時代に設定されています。

B1 adjective /rʌf/

Rough

ざらざらした; 荒い; 厳しい

Meaning

having an uneven surface; not smooth; harsh

Example

The rough surface of the rock hurt my hands.

岩石のざらざらした表面が私の手を傷つけました。

B1 noun /ruːt/

route

Meaning

a way or course taken to get from one place to another

Example

The best route to the airport is through the highway.

A1 verb /rʌn/

run

走る

Meaning

to move quickly on foot; to operate or function

Example

I run every morning for exercise.

私は毎朝運動のために走ります。

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。

B1 verb /rɪˈleɪt/

relate

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 noun /rɪˈmɛmbrəns/

remembrance

記憶

Meaning

the act of remembering or honoring someone or something

Example

A service was held in remembrance of the fallen soldiers.

戦死した兵士たちを記憶するための式典が行われた。

B2 noun /ˌref.jʊˈdʒiː/

Refugee

難民

Meaning

a person who has been forced to leave their country in order to escape war, persecution, or natural disaster

Example

The refugee camp provided temporary shelter for thousands of displaced families.

難民キャンプは、何千人もの避難した家族に一時的な避難所を提供しました。

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 /ˈredʒ.ɪ.mən/

regimen

健康促進または回復のために処方された治療法、ライフスタイル、または食事

Meaning

A prescribed course of medical treatment, way of life, or diet for the promotion or restoration of health.

Example

A strict exercise regimen improves overall fitness.

厳格な運動レジメンは、全体的なフィットネスを向上させます。

A1 noun /ruːm/

room

部屋

Meaning

A space within a building enclosed by walls, floor, and ceiling

Example

She decorated her room with bright colors.

彼女は明るい色で自分の部屋を飾りました。

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 /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 verb /rɪˈfreʃ/

refresh

リフレッシュする

Meaning

to make fresh again; to restore energy

Example

A cold drink refreshes me on hot days.

暑い日には冷たい飲み物が私をリフレッシュさせます。

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。

C1 verb /ræsp/

rasp

Meaning

to speak in a rough, harsh voice or to scrape with a coarse sound

Example

He rasped out a warning before collapsing.

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。

C2 noun /ˈræŋ.kər/

rancor

憎しみ

Meaning

A feeling of deep and bitter anger or resentment.

Example

There was a rancor between the two rivals that never faded.

二人のライバルの間には、決して消えることのない憎しみがあった。

B1 noun /ˈref.ər.əns/

Reference

参考文献

Meaning

the action of mentioning or alluding to something; a source of information

Example

Please provide references to support your research claims.

研究の主張を支持するために参考文献を提供してください。

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。

C1 noun /ˈrep.lɪ.kə/

Replica

レプリカ

Meaning

an exact copy or model of something, especially one on a smaller scale

Example

The museum displayed a perfect replica of the ancient statue.

博物館は古代の彫像の完璧なレプリカを展示しました。

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。

C2 noun /ˌrɛprəˈbeɪʃən/

reprobation

Meaning

Strong disapproval or condemnation; rejection by God as beyond salvation.

Example

The teacher’s face showed clear reprobation at the student’s rude remark.

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。

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 adjective /ˌruː.dɪˈmen.tər.i/

Rudimentary

基本的な; 初歩的な; 未発達な; 発展の初期段階にある

Meaning

basic; elementary; undeveloped; in the earliest stage of development

Example

She has only rudimentary knowledge of French.

彼女はフランス語についての初歩的な知識しか持っていません。

C1 verb /rɪˈpʌls/

repulse

撃退する / 嫌悪感を引き起こす

Meaning

to drive back an attack or attacker by force; to cause intense dislike or disgust

Example

The army managed to repulse the enemy attack.

軍隊は敵の攻撃を撃退することに成功した。

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。

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 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 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。

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 verb /rɪˈnaʊns/

renounce

放棄する

Meaning

to formally declare rejection of something, such as a claim, belief, or way of life

Example

She renounced her citizenship to move abroad permanently.

彼女は永住権を得るために市民権を放棄しました。

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。

C1 noun /ˈriːkɔːrs/

recourse

助け, 対処

Meaning

a source of help or protection in a difficult situation

Example

The students had no recourse but to appeal to the principal.

学生たちは校長に訴える以外に方法がなかった。

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 /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。

B2 adjective /rɪˈzɪl.i.ənt/

resilient

回復力のある

Meaning

Able to withstand or recover quickly from difficult conditions.

Example

Resilient materials ensure durability.

回復力のある素材は耐久性を保証します。

B2 verb /reɪl/

rail

抗議する

Meaning

to complain or protest strongly about something

Example

He railed against the unfair decision.

彼は不公平な決定に対して強く抗議した。

C1 noun /ˈrɛvərəns/

reverence

尊敬

Meaning

deep respect for someone or something

Example

The students showed reverence to their teacher.

学生たちは先生に尊敬を示した。

B2 verb /ˈrɛnəˌveɪt/

renovate

改装する

Meaning

to restore something old to a good state or to improve it

Example

They decided to renovate the old house before moving in.

彼らは引っ越す前に古い家を改装することに決めました。

A2 adjective /ˈriː.sənt/

Recent

最近の; 新しい; 現在の;

Meaning

happening not long ago; new; current;

Example

The recent changes in weather patterns concern scientists.

最近の天気の変化は科学者たちを心配させています。

C1 adjective /rɪˈmiːdiəl/

Remedial

修正的; 治療的; 回復的;

Meaning

intended as a remedy; corrective; providing a cure;

Example

The students need remedial classes to improve their math skills.

学生は数学スキルを向上させるためにリメディアルクラスが必要です。

C1 adjective /rɪˈbel.jəs/

Rebellious

反抗的な; 不従順な; 権威に反発する;

Meaning

defying authority; resisting control; disobedient;

Example

The rebellious teenager refused to follow his parents' rules.

反抗的なティーンエイジャーは、両親の規則に従うことを拒否した。

C1 verb ˈrɛk.tɪ.faɪ

rectify

修正する

Meaning

To correct mistakes or make something right.

Example

The company took steps to rectify its financial mistakes.

会社は財務上のミスを修正するために手順を踏みました。

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。

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。

B2 noun /reɪk/

Rake

レーキ

Meaning

a garden tool with a long handle and prongs for gathering leaves; to gather with a rake

Example

He used a rake to gather the fallen autumn leaves.

彼は落ち葉を集めるためにレーキを使いました。

B1 noun rɔː mətɪˈrɪəlz

raw materials

原材料

Meaning

The basic material from which a product is made.

Example

The factory imports raw materials for production.

工場は生産のために原材料を輸入しています。

A2 noun /ˈreɪl.weɪ/

Railway

鉄道

Meaning

a track made of steel rails along which trains run; a system of tracks with trains, stations, and other facilities

Example

The railway connects major cities across the country.

鉄道は国内の主要な都市を結んでいます。

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。

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。

A2 noun /rent/

Rent

幸せ

Meaning

a payment made periodically by a tenant to a landlord for use of property

Example

The monthly rent for this apartment is quite affordable.

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。

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。

A2 noun /ˈroʊbɒt/

robot

ロボット

Meaning

a machine capable of carrying out a complex series of actions automatically

Example

The factory uses robots to assemble cars efficiently.

工場はロボットを使って効率的に車を組み立てています。

C1 noun /ˈrɛ.trəʊ.fɪt.ɪŋ/

retrofitting

古いシステムに新しい技術や機能を追加すること

Meaning

The addition of new technology or features to older systems.

Example

The building underwent retrofitting to meet new safety standards.

その建物は、新しい安全基準に適応するためにレトロフィッティングされました。

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。

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。

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 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 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。

C1 noun ˈrɛp.ə.twɑːr

repertoire

レパートリー

Meaning

A stock of plays, dances, or pieces that a company or a performer knows or is prepared to perform.

Example

The actor's repertoire includes both comedy and drama.

俳優のレパートリーにはコメディとドラマが含まれています。

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 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。

C2 adjective /ˈrɛɡnənt/

regnant

統治している

Meaning

Reigning; currently holding power, authority, or dominance.

Example

The regnant queen introduced several reforms during her reign.

統治している女王は、彼女の統治期間中にいくつかの改革を導入しました。

C2 noun /ræŋˈɡuːn ˈkriːpər/

Rangoon creeper

ランゴーンクリーパー

Meaning

A climbing vine with fragrant flowers that change color from white to pink to red

Example

The Rangoon creeper covered the entire fence with its sweet-smelling flowers.

ランゴーンクリーパーはその甘い香りの花でフェンス全体を覆いました。

C2 noun /ˈrɛk.tɪ.tjuːd/

rectitude

誠実

Meaning

Morally correct behavior or thinking; righteousness and integrity.

Example

His rectitude earned him respect in society.

彼の誠実さは社会で尊敬を得た。

C1 noun /rɪˈkluːs/

recluse

隠者

Meaning

A person who lives alone and avoids other people; someone who lives a solitary life.

Example

The old man lived as a recluse in the mountains.

その老人は山の中で隠者として暮らしていた。

B2 noun/adjective /rɪˈpʌblɪkən/

republican

共和党員

Meaning

a member or supporter of a republican political party or system

Example

The republican candidate won the election.

リパブリカン候補者は選挙に勝利しました。

C1 noun /ˈruːdɪmənt/

rudiment

基本

Meaning

A basic principle, element, or fundamental part of something.

Example

He learned the rudiments of music before joining the band.

彼はバンドに参加する前に音楽の基礎を学びました。

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。

C1 noun /ˌriː.əˈdʒʌst.mənt/

readjustment

Meaning

The act of changing or correcting something again to make it suitable or balanced.

Example

After moving to a new city, he went through a period of readjustment.

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。

A2 verb /rɪˈdjuːs/

reduce

減らす

Meaning

to make smaller in size, amount, or degree; to decrease

Example

We need to reduce our expenses this month.

今月は支出を減らす必要があります。

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 /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 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。

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。

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。

C1 verb /rɪˈbʌt/

rebut

反論する

Meaning

to argue against or prove wrong; to refute

Example

The lawyer rebutted the false accusations with strong evidence.

弁護士は強力な証拠で虚偽の告発を反論しました。

C2 noun /ˈreɪdɪks/

radix

基数

Meaning

the base or root of something; the number on which a system of numeration is built

Example

In mathematics, the decimal system has a radix of ten.

数学では、十進法の基数は十です。

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。

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。

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 noun /ˈrɛl.ɪk/

relic

遺物

Meaning

an object surviving from an earlier time, often of historical or religious interest

Example

The museum displayed relics from the ancient civilization.

博物館には古代文明の遺物が展示されていました。

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。

C2 adjective /rɪˈmɪs/

remiss

怠慢

Meaning

Negligent in performing a duty or responsibility.

Example

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

マネージャーは財務報告書を慎重に確認しなかったことで怠慢だった。

C1 adjective /ˌret.rəˈspek.tɪv/

Retrospective

回顧的な

Meaning

looking back on or dealing with past events or situations

Example

The museum held a retrospective exhibition of the artist's work.

美術館はその画家の作品の回顧展を開催した。