refraction
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C2 noun /rɪˈfrækʃən/

refraction

réfraction
Meaning
The bending of light, sound, or other waves when they pass from one medium to another of different density.
Example
The refraction of light in water makes objects appear bent.
La réfraction de la lumière dans l'eau fait apparaître les objets comme courbés.
C2 noun /ˈrɛk.tɪ.tjuːd/

rectitude

rectitude
Meaning
Morally correct behavior or thinking; righteousness and integrity.
Example
His rectitude earned him respect in society.
Sa rectitude lui a valu le respect dans la société.
C2 verb /ˈreə.rɪ.faɪ/

rarefy

raréfier, affiner
Meaning
To make something less dense or more refined.
Example
The air rarefies as you climb higher into the mountains.
L'air se raréfie à mesure que vous montez plus haut dans les montagnes.
C2 verb /ˈrɔɪstər/

roister

réjouir bruyamment
Meaning
to revel noisily; to engage in loud, boisterous celebration
Example
The fans roistered in the streets after the victory.
Les fans ont fait la fête dans les rues après la victoire.
C2 noun /ˈræp.aɪn/

rapine

pillages
Meaning
the violent seizure of someone's property
Example
The war was marked by rapine and destruction.
La guerre a été marquée par des pillages et des destructions.
C2 verb (archaic/rare) /rɛk/

reck

se soucier
Meaning
To care about or be concerned with (something); to have regard for.
Example
He does not reck the dangers of his actions.
Il ne se soucie pas des dangers de ses actions.
C2 noun /ˈruː.mɪ.nənt/

ruminant

ruminant
Meaning
a cud-chewing mammal, such as a cow or sheep
Example
Cows are ruminants that chew cud.
Les vaches sont des ruminants qui mâchent le bol alimentaire.
C2 adjective /rɪˈfrɪndʒənt/

refringent

réfringent
Meaning
Capable of refracting light or other waves.
Example
The refringent properties of the crystal bent the light into a spectrum.
Les propriétés réfringentes du cristal ont courbé la lumière en un spectre.
C2 adjective /rɪˈdjuːsəbl̩/

reducible

réductible
Meaning
capable of being simplified, lessened, or made smaller
Example
The problem is complex but reducible to a few basic principles.
Le problème est complexe mais réductible à quelques principes de base.
C2 adjective /rɪˈflɛktɪbəl/

reflectible

réfléchissable
Meaning
capable of being reflected, as light or an image
Example
The surface of the lake is highly reflectible in the morning sun.
La surface du lac est hautement réfléchissable sous le soleil du matin.
C2 adjective /rəˈpeɪ.ʃəs/

rapacious

avidité
Meaning
having an extreme desire to take things for oneself, greedy
Example
The rapacious landlord raised the rent without reason.
Le propriétaire avide a augmenté le loyer sans raison.
C2 adjective /rɪˈkʌmbənt/

recumbent

couché
Meaning
lying down or in a resting position
Example
He was found recumbent on the sofa after a long day.
Il a été trouvé allongé sur le canapé après une longue journée.
C2 noun /ruːd/

rood

croix
Meaning
a crucifix, especially one positioned above the entrance to the chancel of a church
Example
The old church displayed a carved rood above the altar.
L'ancien église affichait une croix sculptée au-dessus de l'autel.
C2 adjective /ˈræŋ.kər.əs/

rancorous

rancunier
Meaning
Characterized by bitterness or resentment.
Example
Their rancorous debate lasted for hours.
Leurs débats rancuniers ont duré des heures.
C2 noun /rɪˈsɪdɪˌvɪzəm/

recidivism

récidivisme
Meaning
The tendency of a convicted criminal to reoffend or relapse into criminal behavior.
Example
The government introduced new programs to reduce recidivism among former inmates.
Le gouvernement a mis en place de nouveaux programmes pour réduire le récidivisme chez les anciens détenus.
C2 noun /ruːθ/

ruth

compassion
Meaning
A feeling of pity, compassion, or sorrow.
Example
He felt no ruth for the people he had betrayed.
Il n'a ressenti aucune compassion pour les personnes qu'il avait trahies.
C2 noun /ˈrɪɡməˌroʊl/

rigmarole

perte de temps
Meaning
a long, complicated, and confusing process or story
Example
Getting a visa was such a rigmarole of paperwork and interviews.
Obtenir un visa a été une perte de temps entre papiers et entretiens.
C2 adjective /rɪˈprɛsəbl̩/

repressible

réprimable
Meaning
Capable of being restrained or suppressed.
Example
The movement proved to be hardly repressible.
Le mouvement s'est avéré être presque réprimable.
C2 noun /rɪˈpʌɡ.nəns/

repugnance

répulsion
Meaning
intense disgust or strong aversion towards something
Example
She felt deep repugnance at the cruelty of the act.
Elle ressentit une profonde répulsion envers la cruauté de l'acte.
C2 noun, adjective, verb /ˈrɛprəˌbeɪt/

reprobate

personne immorale
Meaning
A person of immoral character; to express disapproval of; morally corrupt.
Example
The old reprobate spent his days gambling and drinking.
Le vieux réprouvé passait ses journées à parier et à boire.
C2 verb /ˈrævəl/

ravel

embrouiller / démêler
Meaning
to tangle or complicate; to untangle or unravel depending on context
Example
She began to ravel the loose threads of the sweater.
Elle a commencé à démêler les fils lâches du pull.
C2 noun /ˈræpsədi/

rhapsody

chanson exaltée/éloge
Meaning
an expression of great enthusiasm or an epic musical composition
Example
The singer’s performance was a rhapsody of emotions.
La performance du chanteur était une rhapsodie d'émotions.
C2 verb /rɪˈfrækt/

refract

réfracter
Meaning
To bend light, sound, or heat as it passes through a medium.
Example
The water refracts light, making the straw look bent.
L'eau réfracte la lumière, faisant apparaître la paille comme courbée.
C2 noun/adjective /rɪˈmɒnstrənt/

remonstrant

protestataire
Meaning
A person who makes a forceful protest (noun); protesting or objecting (adjective).
Example
He was a remonstrant voice in the assembly.
Il était une voix de protestation dans l'assemblée.
C2 noun /ˈrɛv.ər.i/

reverie

rêverie; rêverie éveillée
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.
Perdu dans la rêverie, il n’entendit pas son nom être appelé.
C2 noun /ˈrɪp.lɪt/

ripplet

petite ondulation
Meaning
a small or tiny ripple
Example
Tiny ripplets appeared on the lake as the fish moved.
De petites ondulations sont apparues sur le lac lorsque le poisson a bougé.
C2 adjective /ˈrɛkənˌdaɪt/ or /ˈrɛkəndaɪt/

recondite

peu connu ou difficile à comprendre
Meaning
Little known or difficult to understand.
Example
The professor’s lecture was full of recondite theories.
La conférence du professeur était pleine de théories récondites.
C2 adjective /ˈrʌdi/

ruddy

rosé
Meaning
Having a healthy red color in the face.
Example
She had a ruddy complexion from working outdoors.
Elle avait un teint rosé à force de travailler dehors.
C2 verb /ˈrævɪʃ/

ravish

envoûter
Meaning
To fill with intense delight; to captivate or enchant.
Example
The beauty of the sunset ravished the travelers.
La beauté du coucher du soleil envoûta les voyageurs.
C2 verb /rɪˈtrɛntʃ/

retrench

réduire les dépenses, licencier des employés
Meaning
to reduce costs, spending, or staff to save resources
Example
The company had to retrench employees due to financial difficulties.
L'entreprise a dû licencier des employés à cause de difficultés financières.
C2 noun /rɪˈsɪʒən/

rescission

résiliation
Meaning
the cancellation or annulment of a law, contract, or agreement
Example
The rescission of the contract left both parties disappointed.
La résiliation du contrat a laissé les deux parties déçues.
C2 adjective /ˈrɛpərəbəl/

reparable

réparable
Meaning
able to be repaired or fixed
Example
The damage to the car was serious but still reparable.
Les dommages à la voiture étaient graves mais encore réparables.
C2 noun /rɪˌdʒuːvəˈnɛsəns/

rejuvenescence

rejuvenescence
Meaning
the action or process of becoming young or fresh again
Example
The forest showed signs of rejuvenescence after the rains.
La forêt a montré des signes de rajeunissement après la pluie.
C2 adjective /ˈroʊziət/

roseate

rosé, optimiste
Meaning
Having a pink color; optimistic or idealistic.
Example
She looked at the future with roseate optimism.
Elle regarda l'avenir avec un optimisme rose.
C2 adjective /ˈreə.rɪ.faɪd/

rarefied

rarefié
Meaning
Of high moral, intellectual, or cultural value; distant from ordinary life.
Example
He works in the rarefied world of classical music.
Il travaille dans le monde rarefié de la musique classique.
C2 adjective /rɪˈfʌldʒənt/

refulgent

resplendissant
Meaning
Shining brightly; radiant.
Example
The refulgent sun lit up the entire valley.
Le soleil resplendissant éclaira toute la vallée.
C2 noun /ˌriːkruːˈdɛsəns/

recrudescence

recrudescence
Meaning
a new outbreak or revival of something that had subsided, especially an undesirable condition
Example
Health officials warned of a recrudescence of measles in several districts.
Les responsables de la santé ont averti d'une recrudescence de la rougeole dans plusieurs districts.
C2 noun /rɪˈkɒɡnɪzəns/

recognizance

engagement légal
Meaning
A legal obligation or bond entered into before a court, especially to ensure future appearance.
Example
He was released on his own recognizance.
Il a été libéré sous son propre engagement légal.
C2 adjective /rɪˈfɛrəbəl/

referable

référable
Meaning
able to be related or directed to something
Example
The issue is referable to the new policy changes.
La question est référable aux nouveaux changements de politique.
C2 adjective /ˈræfɪʃ/

raffish

non conventionnel et légèrement discrédité mais attrayant
Meaning
unconventional and slightly disreputable but attractive
Example
He had a raffish charm that made him popular in the city.
Il avait un charme raffish qui le rendait populaire dans la ville.
C2 verb /rɪˈspaɪər/

respire

respirer
Meaning
To breathe in and out; to inhale and exhale.
Example
Plants also respire to release energy.
Les plantes respirent aussi pour libérer de l'énergie.
C2 noun /ˈrɒndoʊ/

rondo

composition musicale (avec un thème récurrent)
Meaning
a musical composition with a recurring leading theme
Example
The pianist ended the recital with a lively rondo.
Le pianiste a terminé le récital par un rondo animé.
C2 noun /ˈrɛd.ə.ləns/

redolence

parfum
Meaning
a pleasant smell or the quality of suggesting something strongly
Example
The redolence of jasmine filled the evening air.
Le parfum du jasmin a rempli l'air du soir.
C2 noun /ˌrɛprəˈbeɪʃən/

reprobation

réprobation
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.
Le visage du professeur montrait une réprobation nette face à la remarque impolie de l'étudiant.
C2 adjective /ˈrɛd.ələnt/

redolent

odorant
Meaning
having a strong pleasant smell; strongly reminiscent or suggestive of something
Example
The kitchen was redolent of spices and fresh herbs.
La cuisine était odorante d'épices et d'herbes fraîches.
C2 noun /ˈræŋ.kər/

rancor

rancune
Meaning
A feeling of deep and bitter anger or resentment.
Example
There was a rancor between the two rivals that never faded.
Il y avait une rancune entre les deux rivaux qui ne s'est jamais estompée.
C2 verb /ˌriː.kəˈnɔɪ.tər/

reconnoiter

reconnaître
Meaning
to make a preliminary inspection or survey, especially of an area for military or strategic purposes
Example
The soldiers reconnoitered the area before advancing.
Les soldats ont reconnoîté la zone avant d'avancer.
C2 noun /ˈrɛdʒɪsaɪd/

regicide

régicide
Meaning
the act of killing a king
Example
The conspirators were executed for committing regicide.
Les conspirateurs ont été exécutés pour avoir commis un régicide.
C2 adjective /ˈrævənɪŋ/

ravening

affamé et avide
Meaning
Extremely hungry and greedy; voracious.
Example
The ravening wolves circled the camp.
Les loups affamés ont encerclé le camp.
C2 verb /ˌriː.kəˈpɪtʃ.ə.leɪt/

recapitulate

récapituler
Meaning
To summarize and state again the main points of something.
Example
The teacher asked the student to recapitulate the lesson.
Le professeur a demandé à l'étudiant de récapituler la leçon.
C2 adjective /ˌriːkruːˈdɛsənt/

recrudescent

récidivant
Meaning
reviving or breaking out again after a period of abatement
Example
Recrudescent tensions threatened the fragile ceasefire.
Les tensions récidivantes ont menacé la fragile trêve.
C2 noun /red ˌəʊ.liˈæn.dər/

Red oleander

laurier rose
Meaning
a poisonous flowering shrub with bright red or pink flowers
Example
The red oleander blooms throughout the summer months.
Le laurier rose fleurit tout au long des mois d'été.
C2 noun /rɪˈdʒɔɪndər/

rejoinder

réplique
Meaning
a quick or witty reply; a response to a remark or argument
Example
His sharp rejoinder silenced the crowd.
Sa réplique acérée a fait taire la foule.
C2 verb /rɪˈkjʊə/

recure

soigner à nouveau
Meaning
to cure again; to remedy a second time
Example
The doctor had to recure the wound after it reopened.
Le médecin a dû recurer la blessure après qu'elle se soit rouverte.
C2 adjective /roʊn/

roan

roan
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.
Le cavalier monta un cheval roan avec un pelage tacheté.
C2 noun /rɪˈfɛktəri/

refectory

réfectoire
Meaning
a dining hall, especially in a monastery, convent, or school
Example
Students had lunch in the refectory.
Les étudiants ont déjeuné dans le réfectoire.
C2 verb /rɪˈsɪnd/

rescind

résilier
Meaning
to revoke, cancel, or repeal a law, order, or agreement
Example
The company decided to rescind the job offer.
L'entreprise a décidé de résilier l'offre d'emploi.
C2 verb /rɪˈmɒnstreɪt/

remonstrate

protester
Meaning
To make a forceful protest or objection.
Example
Citizens remonstrated against the new tax policy.
Les citoyens ont protesté contre la nouvelle politique fiscale.
C2 noun /ˈræbəl/

Rabble

foule
Meaning
a disorderly crowd; the common people regarded as socially inferior
Example
The politician dismissed the protesters as mere rabble.
Le politicien a rejeté les manifestants comme une simple foule.
C2 noun /rɪˈpæst/

repast

repas
Meaning
A meal or the food eaten during a meal.
Example
They enjoyed a delicious repast by the riverside.
Ils ont apprécié un délicieux repas au bord de la rivière.
C2 verb /raɪv/

rive

déchirer
Meaning
to tear apart violently
Example
The earthquake rived the ground in several places.
Le tremblement de terre a déchiré le sol en plusieurs endroits.
C2 noun /ˌrækənˈtɜːr/

Raconteur

bonheur
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.
Elle ne pouvait pas cacher son bonheur lorsqu'elle a reçu le prix.
C2 adjective /rɪˈmjuːnərətɪv/

remunerative

rémunérateur
Meaning
Financially rewarding or profitable.
Example
He chose a remunerative career in medicine.
Il a choisi une carrière rémunératrice en médecine.
C2 adjective /ˈruːbɪkənd/

rubicund

visage rubicond
Meaning
Having a healthy reddish complexion.
Example
The old man’s rubicund face showed he was in good health.
Le visage rubicond de l'homme âgé montrait qu'il était en bonne santé.
C2 noun/verb /ˈrɛkəmˌpɛns/

recompense

compensation
Meaning
to compensate someone for loss or harm suffered; compensation given for damage or injury
Example
The company offered financial recompense to the injured worker.
La société a offert une compensation financière au travailleur blessé.
C2 verb /rɪˈɡeɪl/

regale

régaler
Meaning
To entertain or amuse someone with stories, food, or drink.
Example
He regaled us with stories of his travels around the world.
Il nous a régalés avec des histoires de ses voyages autour du monde.
C2 noun /rɪˈkwaɪtəl/

requital

rétribution
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.
Elle a offert son temps en rétribution pour sa gentillesse.
C2 noun /rɪˈsɪdɪvɪst/

recidivist

récidiviste
Meaning
A person who repeatedly commits crimes, especially after having been punished.
Example
The police identified him as a recidivist who had been arrested several times before.
La police l'a identifié comme un récidiviste qui avait été arrêté plusieurs fois auparavant.
C2 noun /ˌrɛprɪˈhɛnʃən/

reprehension

réprimande
Meaning
The act of rebuking or criticizing severely.
Example
The teacher’s reprehension of the student’s behavior was justified.
La réprimande du comportement de l'élève par le professeur était justifiée.
C2 noun /ˈræɡəmʌfɪn/

ragamuffin

enfant négligé
Meaning
A person, typically a child, in ragged, dirty clothes.
Example
The little ragamuffin begged for food on the street.
Le petit enfant négligé mendiait de la nourriture dans la rue.
C2 noun /ˈrɛkjʊzənt/

recusant

réfractaire
Meaning
a person who refuses to submit to authority or comply with rules
Example
The recusant opposed the new law.
Le réfractaire s'est opposé à la nouvelle loi.
C2 adjective /rɪˈfræɡəbəl/

refragable

réfutable
Meaning
Capable of being refuted or disproved.
Example
His argument was weak and easily refragable.
Son argument était faible et facilement réfutable.
C2 adjective /rɪˈkæl.sɪ.trənt/

recalcitrant

récalcitrant, têtu, désobéissant
Meaning
Having an obstinately uncooperative attitude toward authority or discipline.
Example
The recalcitrant student refused to follow rules.
L'étudiant récalcitrant a refusé de suivre les règles.
C2 adjective /ˈrɛkənˌsaɪləbl̩/

reconcilable

réconciliable
Meaning
Capable of being resolved or made consistent.
Example
Their differences are reconcilable with honest communication.
Leurs différences sont réconciliables grâce à une communication honnête.
C2 verb /ˈræm.ɪ.faɪ/

ramify

se ramifier
Meaning
to spread or branch out into divisions or subdivisions.
Example
The river ramifies into several smaller streams.
Le fleuve se ramifie en plusieurs petits ruisseaux.
C2 adjective rɪˈtɛn.tɪv

retentive

rétentif
Meaning
Having strong memory or the ability to retain information for a long time.
Example
Students with a retentive memory excel in academics.
Les étudiants ayant une mémoire rétentive excellent dans leurs études.
C2 noun /roʊˈtʌn.də.ti/

rotundity

rondeur
Meaning
the quality of being round or plump
Example
The rotundity of the balloon made it float gracefully.
La rondeur du ballon l'a fait flotter gracieusement.
C2 adjective /ˈrɪbɔːld/

ribald

blagues vulgaires
Meaning
Referring to sexual matters in a humorous or vulgar way.
Example
The comedian’s ribald jokes made the audience laugh uncomfortably.
Les blagues vulgaires du comédien ont fait rire le public de manière inconfortable.
C2 verb /ruː/

rue

regretter
Meaning
To feel regret or sorrow about something.
Example
She will rue the day she trusted him.
Elle regrettera le jour où elle lui a fait confiance.
C2 noun /rɪˈfɛkʃən/

refection

repas / alimentation
Meaning
a meal or the act of taking food and drink
Example
The monks gathered for their evening refection.
Les moines se sont réunis pour leur repas du soir.
C2 noun /ˈriːdʒənt/

regent

régent
Meaning
a person who rules in place of a monarch when the monarch is absent or too young
Example
The prince acted as regent until the king came of age.
Le prince a agi en tant que régent jusqu'à ce que le roi atteigne sa majorité.
C2 verb /rɪˈkwaɪt/

requite

rendre
Meaning
to return or repay a favor, service, or feeling
Example
She requited his kindness with a thoughtful gift.
Elle a rendu sa gentillesse avec un cadeau réfléchi.
C2 adjective /rɪˈdaʊ.tə.bəl/

redoubtable

redoutable
Meaning
formidable, especially as an opponent; inspiring fear or respect
Example
She was a redoubtable leader who commanded respect from all.
Elle était une leader redoutable qui commandait le respect de tous.
C2 noun /ræpˈskæliən/

rapscallion

personne espiègle
Meaning
A mischievous or cheeky person; a rascal.
Example
The little rapscallion hid his brother’s shoes as a prank.
Le petit rapscallion a caché les chaussures de son frère pour une farce.
C2 noun /ˈrɛkwiəm/

requiem

messe de requiem
Meaning
A mass, music, or ceremony for the repose of the souls of the dead.
Example
The choir performed a requiem in memory of the late leader.
Le chœur a interprété un requiem en mémoire du leader décédé.
C2 noun /ˌræʃioʊsɪˈneɪʃən/

ratiocination

raisonnement
Meaning
the process of reasoning or logical thinking
Example
His ratiocination impressed the judges during the debate.
Son raisonnement a impressionné les juges pendant le débat.
C2 verb /ˌriːkruːˈdɛs/

recrudesce

récruder
Meaning
to break out or appear again after a period of dormancy or decline
Example
After months of calm, violence recrudesced in the region.
Après des mois de calme, la violence a recrudé dans la région.
C2 adjective /raɪˈpɛə.ri.ən/

riparian

relatif ou situé sur les rives d'un fleuve ou d'un autre cours d'eau
Meaning
Relating to or situated on the banks of a river or other watercourse.
Example
Riparian vegetation helps prevent soil erosion along rivers.
La végétation riparienne aide à prévenir l'érosion des sols le long des rivières.
C2 verb /ˈrʌmpəl/

rumple

froisser
Meaning
to make something untidy or wrinkled by creasing or crumpling
Example
She accidentally rumpled her dress while packing.
Elle a accidentellement froissé sa robe en emballant.
C2 adjective /rəˈkoʊkoʊ/

rococo

rococo
Meaning
characterized by ornate detail and elaborate decoration, especially in art, architecture, and design
Example
The palace was decorated in a lavish rococo style.
Le palais a été décoré dans un style rococo luxueux.
C2 noun /ræŋˈɡuːn ˈkriːpər/

Rangoon creeper

Rangoon creeper
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.
Le Rangoon creeper a couvert toute la clôture avec ses fleurs parfumées.
C2 noun /rɪˌnʌnsiˈeɪʃən/

renunciation

renonciation
Meaning
the formal rejection or giving up of something, usually a belief, claim, or way of life
Example
His renunciation of worldly pleasures impressed the monks.
Sa renonciation aux plaisirs mondains a impressionné les moines.
C2 verb /ˈrʌstɪkeɪt/

rusticate

Aller à la campagne / exclusion temporaire de l'université
Meaning
To go to the countryside or to suspend someone from university.
Example
He decided to rusticate in the village to escape the busy city life.
Il a décidé de se rendre à la campagne dans le village pour échapper à la vie trépidante de la ville.
C2 noun /rɪˈvaɪlər/

reviler

insulteur
Meaning
a person who criticizes or insults others abusively
Example
He was known as a reviler of all who opposed him.
Il était connu comme un insulteur de tous ceux qui s'opposaient à lui.
C2 adjective /rəˈʃɛrʃ/

recherche

exclusif
Meaning
Rare, exotic, or obscure, often in a sophisticated or refined way.
Example
The gallery displayed many recherche artworks from unknown artists.
La galerie a exposé de nombreuses œuvres d'art exclusives d'artistes inconnus.
C2 noun /rɪˈfræk.tər/

refractor

réfracteur
Meaning
A type of telescope that uses lenses to focus light.
Example
Refractor telescopes use lenses to focus light.
Les télescopes réfracteurs utilisent des lentilles pour focaliser la lumière.
C2 noun /ˈreɪləri/

raillery

moqueries amicales
Meaning
good-humored teasing or joking
Example
Their friendship was full of light-hearted raillery.
Leur amitié était pleine de railleries légères.
C2 adjective /rɪˈflɛksəbl/

reflexible

réfléchissable
Meaning
Capable of being reflected or bent back.
Example
The surface was highly reflexible, bouncing light in different directions.
La surface était très réfléchissable, renvoyant la lumière dans différentes directions.
C2 adjective /ˈruːnɪk/

runic

relatif aux runes
Meaning
relating to or consisting of runes; mysterious or magical
Example
The old stone had strange runic carvings on it.
La vieille pierre avait des gravures runiques étranges.
C2 noun /ˈrʊkəri/

rookery

nid d'oiseaux
Meaning
a place where rooks or other birds breed and nest in colonies
Example
We saw a rookery full of noisy birds near the forest.
Nous avons vu un nid d'oiseaux plein d'oiseaux bruyants près de la forêt.
C2 noun /rɪˈfrɪndʒənsi/

refringency

réfringence
Meaning
The ability of a substance to bend light; refractive power.
Example
Glass has a higher refringency than water.
Le verre a une réfringence plus élevée que l'eau.
C2 noun /ˈrɪvjʊlət/

rivulet

ruisseau
Meaning
a small stream of water; a tiny brook
Example
A rivulet ran down the hillside after the rain.
Un ruisseau a descendu la colline après la pluie.
C2 noun /ˌriːkəˌpɪtjʊˈleɪʃən/

recapitulation

récapitulation
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.
Le professeur a donné une brève récapitulation du cours avant de terminer la classe.
C2 verb /ˌrɛprɪˈhɛnd/

reprehend

réprimander
Meaning
to express disapproval or criticism of someone or something
Example
The teacher reprehended the student for being dishonest.
L'enseignant a réprimandé l'élève pour avoir été malhonnête.
C2 verb /rɪˈpaɪn/

repine

se lamenter
Meaning
To feel or express discontent or to long for something.
Example
She did not repine at her misfortune but worked harder to improve her life.
Elle ne s'est pas lamentée de son malheur, mais a travaillé plus dur pour améliorer sa vie.
C2 adjective /rɪˈzɪstləs/

resistless

irrésistible
Meaning
Impossible to resist; having an overpowering effect.
Example
She felt a resistless urge to laugh at the joke.
Elle a ressenti une envie irrésistible de rire à la blague.
C2 adjective /ˈreɪ.moʊs/

ramose

ramifié
Meaning
having many branches.
Example
The ramose tree shaded the entire garden.
L'arbre ramifié ombragea tout le jardin.
C2 noun /rʌmp/

Rump

postérieur; fesses; bas du dos
Meaning
the hindquarters or buttocks; the lower back area
Example
The horse injured its rump during the fall.
Le cheval s'est blessé le postérieur pendant la chute.
C2 noun /rɪˈvaɪ.zəl/

revisal

révision
Meaning
The act of revising, reviewing, or making changes to something.
Example
The revisal of the contract took longer than expected.
La révision du contrat a pris plus de temps que prévu.
C2 adjective /ˈrɪz.ə.bəl/

risible

risible
Meaning
so absurd or ridiculous that it deserves to be laughed at
Example
The idea of flying pigs is completely risible.
L'idée de cochons volants est complètement risible.
C2 noun /rɪˈɡætə/

regatta

régate
Meaning
A sporting event consisting of a series of boat or yacht races.
Example
The annual regatta attracted competitors from around the world.
La régate annuelle a attiré des concurrents du monde entier.
C2 noun /ˈræʃənəlɪzəm/

rationalism

rationalisme
Meaning
a belief or theory that opinions and actions should be based on reason and knowledge rather than religious belief or emotion
Example
Rationalism emphasizes logic and reasoning over faith.
Le rationalisme met l'accent sur la logique et le raisonnement plutôt que sur la foi.
C2 noun /rɪˈmɒnstrəns/

remonstrance

protestation
Meaning
A forceful protest or objection.
Example
The workers’ remonstrance against unfair treatment was ignored.
La protestation des travailleurs contre le traitement injuste a été ignorée.
C2 verb /ˈræŋ.kəl/

rankle

agacer
Meaning
To cause continuing annoyance or resentment.
Example
His unfair criticism continued to rankle her for days.
Sa critique injuste a continué de la contrarier pendant des jours.
C2 adjective /ˈruːmi/

rheumy

larmoyant
Meaning
Watery, especially referring to the eyes.
Example
His rheumy eyes showed signs of age and fatigue.
Ses yeux larmoyants montraient des signes de vieillesse et de fatigue.
C2 adjective /rɪˈfjuː.tə.bəl/

Refutable

réfutable
Meaning
capable of being proven wrong or false; able to be disproved
Example
His theory was refutable because it could be tested experimentally.
Sa théorie était réfutable car elle pouvait être testée expérimentalement.
C2 noun /ˈriːbəs/

rebus

rébus
Meaning
a puzzle in which words are represented by pictures, symbols, or letters
Example
The children enjoyed solving the rebus puzzles in the magazine.
Les enfants ont adoré résoudre les rébus dans le magazine.
C2 verb /rɪˈvaɪl/

revile

révérer
Meaning
to criticize in an abusive or angrily insulting manner
Example
The politician was reviled by the public for his corruption.
Le politicien a été révéré par le public pour sa corruption.
C2 noun /roʊˈtʌn.də/

rotunda

bâtiment circulaire
Meaning
a large circular building or hall, often with a dome
Example
Tourists gathered inside the grand rotunda of the capitol.
Les touristes se sont réunis à l'intérieur de la grande rotonde du capitole.
C2 adjective /ˈrɛɡnənt/

regnant

régnant
Meaning
Reigning; currently holding power, authority, or dominance.
Example
The regnant queen introduced several reforms during her reign.
La reine régnante a introduit plusieurs réformes durant son règne.
C2 noun /ˌrɛtəˈrɪʃən/

rhetorician

rhéteur
Meaning
A person who is skilled in the art of rhetoric or persuasive speaking/writing.
Example
The rhetorician captivated the audience with his eloquence.
Le rhéteur a captivé l'auditoire avec son éloquence.