Regrettable
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B2 adjective /rɪˈɡret.ə.bəl/

Regrettable

lamentable; desafortunado; deplorable
Meaning
causing or deserving regret; unfortunate; deplorable
Example
It is regrettable that so many talented people left the company.
Es lamentable que tantas personas talentosas hayan dejado la empresa.
B1 noun ˈreɪn.fɒr.ɪst

rainforest

selva tropical
Meaning
A luxuriant, dense forest rich in biodiversity, found typically in tropical areas with consistently heavy rainfall.
Example
The Amazon rainforest is home to millions of species.
La selva tropical del Amazonas es hogar de millones de especies.
A2 adjective /ˈreɡ.jə.lər/

Regular

regular
Meaning
happening at fixed intervals; consistent; normal; frequent
Example
She goes for regular exercise every morning at 6 AM.
Ella hace ejercicio regularmente todas las mañanas a las 6.
B1 noun /ˈreɪn.boʊ/

Rainbow

arco iris
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.
Después de la tormenta, apareció un hermoso arco iris en el cielo.
B1 adjective /rɪˈpiː.tɪd/

Repeated

repetido; que ocurre varias veces
Meaning
done again; happening again; occurring multiple times
Example
He made repeated attempts to contact her.
Él hizo intentos repetidos para contactarla.
B2 adjective /rɪˈfaɪnd/

Refined

refinado; purificado
Meaning
elegant and cultured in appearance, manner, or taste; purified
Example
She has very refined taste in art and music.
Ella tiene un gusto muy refinado en arte y música.
C1 adjective /rɪˈbel.jəs/

Rebellious

rebelde; desobediente; que resiste la autoridad;
Meaning
defying authority; resisting control; disobedient;
Example
The rebellious teenager refused to follow his parents' rules.
El adolescente rebelde se negó a seguir las reglas de sus padres.
B1 verb /rɪˈper/

repair

reparar
Meaning
to fix something that is broken or damaged
Example
The mechanic will repair the car's engine tomorrow.
El mecánico reparará el motor del coche mañana.
C2 noun /riːm/

ream

resma
Meaning
A large quantity of paper (typically 500 sheets); informally, a large amount of something.
Example
The office ordered ten reams of paper.
La oficina ordenó diez resmas de papel.
A2 verb /rɪˈmaɪnd/

remind

recordar
Meaning
to cause someone to remember something
Example
Please remind me to call her tomorrow.
Por favor, recuérdame llamar a ella mañana.
C1 noun /ˈrɛ.trəʊ.fɪt.ɪŋ/

retrofitting

la adición de nueva tecnología a sistemas antiguos
Meaning
The addition of new technology or features to older systems.
Example
The building underwent retrofitting to meet new safety standards.
El edificio fue sometido a retrofitting para cumplir con los nuevos estándares de seguridad.
C2 adjective /rɪˈmjuːnərətɪv/

remunerative

remunerativo
Meaning
Financially rewarding or profitable.
Example
He chose a remunerative career in medicine.
Eligió una carrera remunerada en medicina.
C1 noun /rʌk/

Ruck

empujón; multitud desordenada
Meaning
a situation where a crowd of people are pushing against each other; a disorderly crowd
Example
There was a ruck at the football match.
Hubo un empujón en el partido de fútbol.
A1 verb /rʌn/

run

correr
Meaning
to move quickly on foot; to operate or function
Example
I run every morning for exercise.
Corro todas las mañanas para hacer ejercicio.
C1 adjective /ˈrez.ə.luːt/

Resolute

resuelto; firme; decidido
Meaning
determined; having a firm decision; unwavering
Example
She remained resolute in her decision to pursue her dreams.
Ella permaneció resuelta en su decisión de seguir sus sueños.
B2 adjective /ˈrek.ləs/

Reckless

imprudente; temerario; peligroso;
Meaning
acting without thinking about consequences; careless; dangerous;
Example
His reckless driving caused a serious accident.
Su conducción imprudente causó un accidente grave.
C2 adjective /ˈruːmi/

rheumy

lagrimoso
Meaning
Watery, especially referring to the eyes.
Example
His rheumy eyes showed signs of age and fatigue.
Sus ojos lagrimosos mostraban signos de edad y fatiga.
A1 adjective /ˈrɛd.i/

ready

listo
Meaning
Prepared or available for use or action.
Example
She was ready to leave for the airport.
Ella estaba lista para ir al aeropuerto.
C1 noun ˌriː.pɚˈkʌʃ.ənz

repercussions

repercusiones
Meaning
The unintended consequences or effects of an action or event.
Example
The new policy had unintended repercussions on the economy.
La nueva política tuvo repercusiones no deseadas en la economía.
B2 noun /ˌriːprəˈdʌkʃən/

reproduction

reproducción, reproducción
Meaning
The process of producing offspring; the act of copying or duplicating.
Example
The textbook included a detailed diagram of human reproduction.
El libro de texto incluía un diagrama detallado de la reproducción humana.
B2 adjective /ˈrɪɡ.ər.əs/

rigorous

riguroso
Meaning
Extremely thorough and demanding in analysis or practice.
Example
A rigorous study plan helps students achieve better results.
Un plan de estudio riguroso ayuda a los estudiantes a obtener mejores resultados.
B2 adjective /ˈrest.ləs/

Restless

inquieto
Meaning
unable to rest or relax; constantly moving or fidgeting
Example
The child was restless during the long car journey.
El niño estaba inquieto durante el largo viaje en coche.
C2 adjective /ˈrɛd.ələnt/

redolent

oloroso
Meaning
having a strong pleasant smell; strongly reminiscent or suggestive of something
Example
The kitchen was redolent of spices and fresh herbs.
La cocina olía a especias y hierbas frescas.
C1 adjective /ˈrɛvərənt/

reverent

reverente
Meaning
Showing deep and solemn respect.
Example
They listened to the speech in a reverent silence.
Escucharon el discurso en un silencio reverente.
C1 adjective /rɪˈstreɪnd/

restrained

restricto
Meaning
characterized by reserve or self-control; held back
Example
Her restrained reaction surprised everyone.
Su reacción restringida sorprendió a todos.
C2 verb /rɪˈpruːv/

reprove

reprender
Meaning
to criticize or correct someone gently or disapprove of their actions
Example
The teacher reproved the student for being late.
El maestro reprendió al estudiante por llegar tarde.
B1 noun /rɪˈsɜːtʃə(r)/

researcher

investigador
Meaning
a person who conducts research
Example
The researcher published her findings in a scientific journal.
El investigador publicó sus hallazgos en una revista científica.
C1 adjective /rɪˈsɛptɪv/

receptive

receptivo
Meaning
Willing to listen to or accept new ideas, suggestions, or experiences.
Example
She was receptive to feedback from her colleagues.
Ella estaba receptiva a los comentarios de sus colegas.
B2 noun /ˈruːmər/

Rumour

rumor; chisme; noticia
Meaning
a currently circulating story or report of uncertain or doubtful truth; gossip
Example
There's a rumour that the company will close next month.
Hay un rumor de que la empresa cerrará el próximo mes.
B2 noun rɪˈpʌb.lɪk

republic

república
Meaning
A state in which supreme power is held by the people and their elected representatives, with an elected or nominated president rather than a monarch.
Example
A republic is governed by representatives of the people.
Una república es gobernada por los representantes del pueblo.
C2 adjective /ˈrævənɪŋ/

ravening

hambriento y codicioso
Meaning
Extremely hungry and greedy; voracious.
Example
The ravening wolves circled the camp.
Los lobos hambrientos rodearon el campamento.
C2 verb /rɪˈfrækt/

refract

refractar
Meaning
To bend light, sound, or heat as it passes through a medium.
Example
The water refracts light, making the straw look bent.
El agua refracta la luz, haciendo que la pajilla se vea doblada.
C2 noun /ˈræʃənəlɪzəm/

rationalism

racionalismo
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.
El racionalismo enfatiza la lógica y el razonamiento por encima de la fe.
B2 noun rɪˈkruːt.mənt

recruitment

reclutamiento
Meaning
The action of finding new people to join an organization or support a cause.
Example
Recruitment strengthens the workforce.
El reclutamiento fortalece la fuerza laboral.
C2 verb /rɪˈdaʊnd/

redound

contribuir
Meaning
to contribute greatly to a result or consequence, usually beneficial
Example
His hard work will redound to the success of the company.
Su arduo trabajo contribuirá al éxito de la empresa.
C1 noun /rɪˈsɜː.dʒəns/

resurgence

resurgimiento
Meaning
An increase or revival after a period of little activity, popularity, or occurrence.
Example
The city saw a resurgence in tourism after the pandemic.
La ciudad vio un resurgimiento en el turismo después de la pandemia.
B1 preposition /rɪˈɡɑrdɪŋ/

regarding

respecto a
Meaning
concerning or relating to
Example
The decision regarding the meeting will be made tomorrow.
La decisión respecto a la reunión se tomará mañana.
B2 verb /rɒt/

rot

podrir
Meaning
to decay or decompose; to become corrupt
Example
The fruit will rot if left in the sun.
La fruta se pudrirá si se deja al sol.
B1 adjective /roʊˈmæn.tɪk/

Romantic

romántico
Meaning
relating to love; idealistic; dreamy
Example
They enjoyed a romantic dinner by candlelight.
Disfrutaron de una cena romántica a la luz de las velas.
C1 verb /rɪˈvɜːrbəreɪt/

reverberate

reverberar
Meaning
To echo repeatedly or have continuing effects.
Example
The sound of the explosion reverberated through the valley.
El sonido de la explosión reverberó a través del valle.
C2 verb /rɔɪl/

roil

agitar
Meaning
to make a liquid muddy or disturbed; to cause agitation or disorder
Example
The constant protests roiled the city streets.
Las constantes protestas agitaron las calles de la ciudad.
C1 noun /ˌrɛs.ɪˈprɒs.ɪ.ti/

reciprocity

la práctica de intercambiar cosas con otros para beneficio mutuo
Meaning
The practice of exchanging things with others for mutual benefit.
Example
Business relationships thrive on reciprocity.
Las relaciones comerciales prosperan gracias a la reciprocidad.
A2 verb /rɪˈlæks/

relax

relajarse
Meaning
to make or become less tense or anxious; to rest
Example
After a long day, she likes to relax with a good book.
Después de un largo día, le gusta relajarse con un buen libro.
B2 noun ˈrɛvənuː

revenue

ingresos
Meaning
Income, especially when of a company or organization.
Example
The company's revenue grew by 10% this year.
Los ingresos de la compañía crecieron un 10% este año.
B1 adjective /ˈrel.ə.vənt/

Relevant

relevante
Meaning
closely connected or appropriate to what is being discussed; pertinent
Example
Please provide only relevant information for this discussion.
Por favor, proporcione solo información relevante para esta discusión.
C1 verb /rɪˈvɪər/

revere

reverenciar
Meaning
To deeply respect or admire someone or something.
Example
The students revered their teacher for his wisdom.
Los estudiantes veneraron a su maestro por su sabiduría.
C1 adjective ˈriːdʒən spəˈsɪfɪk

region-specific

específico de la región
Meaning
Relating to or characteristic of a particular region or area.
Example
Climate change impacts are region-specific.
Los impactos del cambio climático son específicos de la región.
A2 noun /ruːf/

roof

techo
Meaning
the top covering of a building or vehicle
Example
The roof of the house needs to be repaired.
El techo de la casa necesita ser reparado.
A2 verb /roʊl/

roll

rodar
Meaning
to move by turning over and over on an axis
Example
She rolled the ball down the hill.
Ella hizo rodar la pelota cuesta abajo.
C2 noun /rɪˈdʒɔɪndər/

rejoinder

réplica
Meaning
a quick or witty reply; a response to a remark or argument
Example
His sharp rejoinder silenced the crowd.
Su aguda réplica silenció a la multitud.
C1 verb /rɪˈmɪt/

remit

enviar dinero / perdonar
Meaning
To send money in payment or as a gift; to cancel or refrain from exacting a debt or punishment.
Example
He promised to remit the payment by the end of the week.
Él prometió remitir el pago antes del final de la semana.
B2 verb /ˌriːkriˈeɪt/

recreate

recrear
Meaning
to create or produce something again, especially a new version of something lost or destroyed
Example
The team recreated the lost dataset from backups.
El equipo recreó el conjunto de datos perdido desde las copias de seguridad.
C2 noun /ˈrʊkəri/

rookery

nido de aves
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.
Vimos un nido de aves lleno de pájaros ruidosos cerca del bosque.
C1 adjective rɪˈsɛʃ.ən.er.i

recessionary

recesivo
Meaning
Relating to or characterized by economic recession.
Example
Governments introduce policies to counter recessionary effects.
Los gobiernos introducen políticas para contrarrestar los efectos recesivos.
C2 adjective /rɪˈflɛktɪbəl/

reflectible

reflejable
Meaning
capable of being reflected, as light or an image
Example
The surface of the lake is highly reflectible in the morning sun.
La superficie del lago es altamente reflejable en el sol de la mañana.
B2 verb /ˈrʌm.bəl/

rumble

felicidad
Meaning
to make a continuous deep, resonant sound
Example
Thunder rumbled in the distance.
Ella no pudo ocultar su felicidad cuando recibió el premio.
C1 adjective /rɪˈtɔːrɪkəl/

rhetorical

retórico
Meaning
relating to the art of effective or persuasive speaking or writing; often a question asked to make a point rather than get an answer
Example
He asked a rhetorical question during the debate.
Hizo una pregunta retórica durante el debate.
B1 noun rəʊlz

Roles

rol
Meaning
A person's or thing's function in a particular situation.
Example
Defined roles improve team performance.
Los roles definidos mejoran el rendimiento del equipo.
C1 adjective /rɪˈpʌɡ.nənt/

Repugnant

repugnante; desagradable; detestable
Meaning
extremely distasteful; unacceptable; causing disgust or strong dislike
Example
The idea of lying to his parents was repugnant to him.
La idea de mentir a sus padres le resultaba repugnante.
C1 noun /rɪˈmɪt.əns/

Remittance

remesa
Meaning
A sum of money sent in payment or as a gift.
Example
The country's economy benefits from expatriate remittance.
La economía del país se beneficia de las remesas de los expatriados.
B2 noun /red liːf/

Red leaf

hoja roja
Meaning
red-colored leafy vegetable; amaranth leaves used as greens
Example
Red leaf is rich in iron and is commonly eaten in Bengali households.
La hoja roja es rica en hierro y comúnmente se consume en los hogares bengalíes.
C1 noun/verb /rɪˈpriːz/

reprise

repetición
Meaning
A repetition or return to an earlier theme, role, or action.
Example
The actor reprised his role in the sequel.
El actor repitió su papel en la secuela.
C1 adjective /ˈræspi/

raspy

áspero
Meaning
having a harsh, rough, or grating sound
Example
His raspy voice revealed years of smoking.
Su voz áspera reveló años de fumar.
C2 noun, adjective, verb /ˈrɛprəˌbeɪt/

reprobate

persona inmoral
Meaning
A person of immoral character; to express disapproval of; morally corrupt.
Example
The old reprobate spent his days gambling and drinking.
El viejo reprobado pasó sus días apostando y bebiendo.
C1 verb /ˈruː.mɪ.neɪt/

ruminate

rumiar, reflexionar profundamente
Meaning
to think deeply about something; to chew cud (for animals)
Example
She sat alone to ruminate on her decision.
Ella se sentó sola a rumiar sobre su decisión.
C1 noun/verb /ˈræfəl/

raffle

venta de boletos de lotería
Meaning
A means of raising money by selling numbered tickets, one or more of which are drawn at random for a prize; to sell something in such a lottery.
Example
The charity decided to raffle a bicycle to raise funds.
La caridad decidió rifar una bicicleta para recaudar fondos.
C2 noun /ˈrɛkjʊzənt/

recusant

refractario
Meaning
a person who refuses to submit to authority or comply with rules
Example
The recusant opposed the new law.
El refractario se opuso a la nueva ley.
C1 noun /rɪˈpʌlʃən/

Repulsion

repulsión
Meaning
a feeling of intense distaste or disgust; a force under the influence of which objects tend to move away from each other
Example
She felt a strong repulsion towards the idea of eating insects.
Ella sintió una fuerte repulsión hacia la idea de comer insectos.
C1 noun ˈrez.ɪ.djuːz

residues

restos
Meaning
A small amount of something that remains after the main part has gone or been taken or used.
Example
The burning process leaves no harmful residues.
El proceso de combustión no deja residuos dañinos.
B2 noun /ˈraɪdər/

rider

jinete
Meaning
A person who rides a horse, bicycle, motorcycle, or other vehicle.
Example
The rider fell off the horse.
El jinete cayó del caballo.
C1 verb /rɪˈtɔːrt/

retort

respuesta rápida
Meaning
To reply quickly or sharply, often in a witty or angry manner.
Example
He quickly retorted that he was not to blame.
Él rápidamente respondió que no era su culpa.
C1 adverb /ˈrɪdʒɪdli/

Rigidly

estrictamente; de manera inflexible
Meaning
in a strict, inflexible manner; without compromise
Example
The rules are rigidly enforced in this institution.
Las reglas son estrictamente aplicadas en esta institución.
C2 noun /ruːd/

rood

cruz
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.
La antigua iglesia exhibió una cruz tallada sobre el altar.
C1 noun /rɪˈmɪʃən/

remission

remisión
Meaning
A temporary or permanent decrease or disappearance of disease symptoms; forgiveness of sins or debts.
Example
The patient’s cancer is in remission after the treatment.
El cáncer del paciente está en remisión después del tratamiento.
C1 adjective /rɪˈvenʒ.fəl/

Revengeful

vengativo
Meaning
seeking or desiring revenge; vindictive
Example
He became revengeful after being betrayed by his friend.
Se volvió vengativo después de ser traicionado por su amigo.
C2 verb /raɪv/

rive

rasgar
Meaning
to tear apart violently
Example
The earthquake rived the ground in several places.
El terremoto desgarró el suelo en varios lugares.
C1 verb /rɪˈsiːd/

recede

retroceder
Meaning
To move back or further away from a previous position.
Example
The floodwaters began to recede after the heavy rain stopped.
Las aguas de la inundación comenzaron a retroceder después de que la lluvia intensa paró.
B2 adjective /rɪˈzɜːrvd/

Reserved

reservado; introvertido
Meaning
slow to reveal emotion or opinions; restrained in manner
Example
She is quite reserved and doesn't talk much in meetings.
Ella es bastante reservada y no habla mucho en las reuniones.
C2 adjective /rəˈpeɪ.ʃəs/

rapacious

rapaz
Meaning
having an extreme desire to take things for oneself, greedy
Example
The rapacious landlord raised the rent without reason.
El dueño de la casa rapaz subió el alquiler sin razón.
B1 noun /rɪˈpɔːtɪŋ/

reporting

informes
Meaning
the act of giving news or information about something
Example
Good reporting is essential for public awareness.
Un buen informe es esencial para la conciencia pública.
B2 noun /ˈroʊ.lɪŋ pɪn/

Rolling pin

rodillo
Meaning
a cylindrical tool used for rolling out dough or pastry
Example
Roll the dough flat with a rolling pin.
Extiende la masa con un rodillo.
B2 adjective /rɪˈmuːvəbəl/

removable

extraíble
Meaning
able to be removed or taken away
Example
This phone has a removable battery.
Este teléfono tiene una batería extraíble.
C2 adjective /ˈrɪbɔːld/

ribald

bromas obscenas
Meaning
Referring to sexual matters in a humorous or vulgar way.
Example
The comedian’s ribald jokes made the audience laugh uncomfortably.
Los chistes obscenos del comediante hicieron reír a la audiencia incómodamente.
A2 verb /rɪˈplaɪ/

reply

responder
Meaning
to give an answer; to respond
Example
She replies to emails quickly.
Ella responde a los correos electrónicos rápidamente.
B2 noun /ˈrɒbəɹi/

robbery

robo
Meaning
the crime of stealing from someone or somewhere using force or threat
Example
The police are investigating the robbery at the local store.
La policía está investigando el robo en la tienda local.
A2 noun, verb /ˈriːzən/

reason

razón, motivo
Meaning
A cause, explanation, or justification for an action or event; to think or argue logically.
Example
There is no reason to be upset.
No hay razón para estar molesto.
A2 noun /roʊl/

role

papel
Meaning
a part or function of something
Example
Her role in the project was crucial.
Su rol en el proyecto fue crucial.
B1 verb /rɑːb/

rob

robar
Meaning
to steal money or property from a person or place; to commit robbery
Example
The thief tried to rob the bank last night.
El ladrón trató de robar el banco anoche.
B2 adjective /ˈræʃ.ən.əl/

Rational

racional; sensato; lógico
Meaning
based on reason and logic; sensible and practical
Example
She made a rational decision based on the available facts.
Ella tomó una decisión racional basada en los hechos disponibles.
B2 adjective /ˈrɪtʃ.u.əl/

Ritual

ritual
Meaning
relating to religious or ceremonial practices
Example
The wedding ceremony included many traditional ritual elements.
La ceremonia de boda incluyó muchos rituales tradicionales.
C2 verb /ˈræpsəˌdaɪz/

rhapsodize

hablar con entusiasmo
Meaning
to speak or write with great enthusiasm and admiration
Example
He would often rhapsodize about his travels to Europe.
Él a menudo hablaba con entusiasmo sobre sus viajes a Europa.
C1 verb /rɪˈvoʊk/

revoke

revocar
Meaning
To officially cancel or withdraw a decision, privilege, or right.
Example
The government decided to revoke his passport.
El gobierno decidió revocar su pasaporte.
C1 verb /ˌriː.ɪˈstæblɪʃ/

reestablish

restablecer
Meaning
to set up or restore something again after it has been disrupted
Example
The government worked hard to reestablish peace in the region.
El gobierno trabajó arduamente para restablecer la paz en la región.
C1 noun /ˈriːbeɪt/

rebate

descuento/reembolso
Meaning
a partial refund given to someone who has paid too much money for something
Example
The store offered a rebate on bulk purchases.
La tienda ofreció un descuento en compras al por mayor.
B2 adjective /ˈroʊlɪŋ/

rolling

rodando
Meaning
moving in gentle undulations; moving forward by turning over and over
Example
They drove through the rolling hills of the countryside.
Condujeron por las colinas onduladas del campo.
B2 adjective /ˈrɪdʒ.ɪd/

Rigid

rígido
Meaning
hard and stiff; not able to bend; strict and unwilling to change
Example
The company has a rigid dress code that all employees must follow.
La empresa tiene un código de vestimenta rígido que todos los empleados deben seguir.
B2 verb /rɪˈfreʃ/

refresh

refrescar
Meaning
to make fresh again; to restore energy
Example
A cold drink refreshes me on hot days.
Una bebida fría me refresca en los días calurosos.
C2 adjective /rɪˈmɪs/

remiss

negligente
Meaning
Negligent in performing a duty or responsibility.
Example
The manager was remiss in not checking the financial reports carefully.
El gerente fue negligente al no revisar cuidadosamente los informes financieros.
B1 verb /rɪˈtaɪə/

retire

jubilarse
Meaning
to stop working after reaching a certain age or having completed a career
Example
She decided to retire after working for 40 years.
Ella decidió jubilarse después de trabajar durante 40 años.
B2 noun /rɪˈfreʃ.mənt/

Refreshment

refrigerio
Meaning
food and drink that is served as a light meal; something that refreshes
Example
We served light refreshments after the meeting.
Servimos refrigerios ligeros después de la reunión.
C2 noun /ˈrɛd.ə.ləns/

redolence

fragancia
Meaning
a pleasant smell or the quality of suggesting something strongly
Example
The redolence of jasmine filled the evening air.
La fragancia del jazmín llenó el aire de la tarde.
C1 noun/verb /rɪˈpriːv/

reprieve

retraso temporal / perdón de castigo
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.
El prisionero recibió un perdón de último minuto de la ejecución.
C1 verb /ˈræn.də.maɪz/

randomize

aleatorizar
Meaning
To make something happen in a random order or manner.
Example
The software can randomize the order of questions.
El software puede aleatorizar el orden de las preguntas.
C1 verb /ˈreɪdieɪt/

radiate

irradiar
Meaning
to emit energy or light; to spread out from a center
Example
The fireplace radiates warmth throughout the room.
La chimenea irradia calor por toda la habitación.
C1 adjective /ˈrænsɪd/

rancid

rancio
Meaning
having a bad taste or smell due to being old or spoiled (especially fats or oils)
Example
The butter had gone rancid after being left out too long.
La mantequilla se puso rancia después de estar demasiado tiempo fuera.
C2 verb (archaic/rare) /rɛk/

reck

preocuparse
Meaning
To care about or be concerned with (something); to have regard for.
Example
He does not reck the dangers of his actions.
Él no se preocupa por los peligros de sus acciones.
B2 noun /rɪˈzembləns/

Resemblance

semejanza
Meaning
the state of being alike or similar; similarity in appearance or character
Example
There's a strong resemblance between the two sisters.
Hay una fuerte semejanza entre las dos hermanas.
C2 adjective /roʊn/

roan

roano
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.
El jinete montó un caballo roano con un pelaje moteado.
C1 adjective /ˈrɪvɪtɪŋ/

riveting

fascinante
Meaning
extremely interesting; holding the complete attention
Example
The movie was so riveting that nobody looked away.
La película era tan fascinante que nadie apartó la vista.
C1 noun /ˈrɛdʒɪmənt/

regiment

regimiento
Meaning
A permanent unit of an army, typically commanded by a colonel and divided into several companies.
Example
The regiment marched proudly through the streets after returning from the mission.
El regimiento marchó orgullosamente por las calles tras regresar de la misión.
A1 noun /raɪs/

Rice

arroz
Meaning
a cereal grain that is a staple food in many countries
Example
We eat rice with curry for dinner.
Comemos arroz con curry para la cena.
C2 adjective /rəˈʃɛrʃ/

recherche

exclusivo
Meaning
Rare, exotic, or obscure, often in a sophisticated or refined way.
Example
The gallery displayed many recherche artworks from unknown artists.
La galería exhibió muchas obras de arte exclusivas de artistas desconocidos.
B2 noun /ˈrɛzərvwɑːr/

reservoir

embalse
Meaning
A large natural or artificial lake used as a source of water supply.
Example
The city built a new reservoir to ensure enough drinking water for its residents.
La ciudad construyó un nuevo embalse para garantizar suficiente agua potable para sus residentes.
B1 noun ruːlz ənd ˌrɛɡjʊˈleɪʃənz

rules and regulations

reglas y regulaciones
Meaning
Official orders and laws that control how something is done.
Example
Rules and regulations alone cannot change attitudes.
Las reglas y regulaciones por sí solas no pueden cambiar actitudes.
B2 noun ˌreɪdɪˈeɪʃən

radiation

radiación
Meaning
The emission of energy as electromagnetic waves or as moving subatomic particles.
Example
Radiation from the sun can be harmful without protection.
La radiación del sol puede ser perjudicial sin protección.
A2 adverb /ˈriː.sənt.li/

Recently

recientemente
Meaning
in the recent past; not long ago
Example
I recently moved to a new apartment.
Me mudé recientemente a un nuevo apartamento.
C1 noun rɪˈdɛmpʃən

redemption

redención
Meaning
The action of saving or being saved from sin, error, or evil.
Example
The story highlights the theme of redemption.
La historia destaca el tema de la redención.
B2 noun /ˈreɪ.dɑːr/

Radar

radar
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.
El radar detectó un avión desconocido acercándose a la base.
C2 verb /rɪˈpaɪn/

repine

lamentarse
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.
Ella no lamentó su desgracia, sino que trabajó más duro para mejorar su vida.
B2 noun /ˈrʊki/

rookie

novato
Meaning
a person who is new to an activity or organization; a beginner
Example
The rookie policeman made a few mistakes on his first day.
El policía novato cometió algunos errores en su primer día.
C1 noun/verb /ˈrɛprɪˌmænd/

reprimand

reprensión
Meaning
A formal expression of disapproval; to scold or criticize someone officially.
Example
The teacher reprimanded the student for being late.
El maestro reprendió al estudiante por llegar tarde.