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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.
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.
C1 verb /rɪˈfjuːt/

refute

refutar
Meaning
To prove a statement, argument, or theory to be false or invalid.
Example
The lawyer refuted the witness's testimony with solid evidence.
El abogado refutó el testimonio del testigo con pruebas sólidas.
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.
B2 noun /rɪˈmuː.vəl/

Removal

remoción; eliminación; despido;
Meaning
the action of taking something away or eliminating it; dismissal from office
Example
The removal of the old furniture took all day.
La remoción de los muebles viejos tomó todo el día.
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 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.
C1 adjective /ˈrep.jə.tə.bəl/

Reputable

respetable
Meaning
having a good reputation; respected and trusted
Example
She works for a reputable law firm in the city.
Ella trabaja para una firma de abogados de renombre en la ciudad.
B2 noun ˈrɛstɪŋ pleɪs

resting place

lugar de descanso
Meaning
A place where someone or something rests, especially a burial site.
Example
The resting place of the martyrs is near the river.
El lugar de descanso de los mártires está cerca del río.
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.
B2 verb /rɪˈvɜːs/

reverse

invertir
Meaning
to change something to the opposite direction, position, or result
Example
She quickly reversed the car out of the driveway.
Ella rápidamente invirtió el coche fuera de la entrada.
C1 noun ˈrɛp.ə.twɑːr

repertoire

repertorio
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.
El repertorio del actor incluye tanto comedia como drama.
B2 adjective /ræʃ/

rash

impulsivo, imprudente
Meaning
Acting quickly without careful consideration; reckless.
Example
It was a rash decision to invest without research.
Fue una decisión imprudente invertir sin investigación.
A2 adverb /ˈrɛɡjələrli/

regularly

regularmente
Meaning
at regular intervals; in a regular manner
Example
She exercises regularly to stay healthy.
Ella hace ejercicio regularmente para mantenerse saludable.
C1 noun /ˈruː.bi/

Ruby

rubí
Meaning
a precious red gemstone; a deep red variety of corundum
Example
The ruby ring was her most treasured possession.
El anillo de rubí era su posesión más preciada.
A2 verb /rɪˈpleɪs/

replace

reemplazar
Meaning
to take the place of something or someone; to put something new in place of something old
Example
He decided to replace the broken lamp with a new one.
Él decidió reemplazar la lámpara rota por una nueva.
B2 adjective /rɪˈliːvd/

relieved

aliviado
Meaning
feeling happy and less worried after something stressful has been removed or resolved
Example
She felt relieved after hearing the good news.
Se sintió aliviada después de escuchar la buena noticia.
C1 adjective /rɪˈpres.ɪv/

Repressive

represivo
Meaning
restraining freedom or preventing self-expression; oppressive
Example
The repressive government banned all forms of protest.
El gobierno represivo prohibió todas las formas de protesta.
C1 noun /ˈrɒstrəm/

rostrum

estrado
Meaning
A raised platform for speakers, performers, or leaders.
Example
The politician delivered a speech from the rostrum.
El político dio un discurso desde el estrado.
C2 adjective /ˈrʌdi/

ruddy

sonrosado
Meaning
Having a healthy red color in the face.
Example
She had a ruddy complexion from working outdoors.
Tenía un rostro sonrosado por trabajar al aire libre.
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 noun /ˈruːlɪŋ/

ruling

fallo
Meaning
an official decision made by a judge or authority.
Example
The court’s ruling favored the defendant.
El fallo del tribunal favoreció al acusado.
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.
B1 verb /rɪˈflekt/

reflect

reflejar
Meaning
to think deeply about; to mirror back light or image
Example
The mirror reflects her beautiful face.
El espejo refleja su hermoso rostro.
C2 noun /rɪˈsɪdɪvɪst/

recidivist

recidivista
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 policía lo identificó como un recidivista que había sido arrestado varias veces antes.
A1 adjective /red/

Red

rojo
Meaning
having the color of blood or fire; of the color red
Example
She wore a beautiful red dress to the party.
Ella llevaba un hermoso vestido rojo a la fiesta.
C1 verb /ˌriːˈsiːt/

reseat

reubicar
Meaning
to seat someone again or to fit something back into its place
Example
The usher had to reseat the guests after the interruption.
El acomodador tuvo que reubicar a los invitados después de la interrupción.
B1 adjective /rɪˈmoʊt/

remote

remoto
Meaning
Situated far from the main centers of population; distant.
Example
They stayed in a remote village during their trip.
Se quedaron en un pueblo remoto durante su viaje.
C1 adjective /ˈraɪtfəl/

rightful

legítimo
Meaning
having a legitimate or just claim; proper or lawful
Example
She is the rightful owner of the property.
Ella es la legítima dueña de la propiedad.
C1 noun /ˈrʌp.tʃər/

Rupture

ruptura; quiebre de relaciones
Meaning
breaking or bursting apart; breakdown of relations
Example
The rupture in the pipeline caused a massive oil spill.
La ruptura en la tubería causó un gran derrame de petróleo.
C1 verb /ˌriː.kənˈviːn/

reconvene

reunirse de nuevo
Meaning
to gather or assemble again, especially for a meeting
Example
The committee will reconvene after lunch.
El comité se reunirá después del almuerzo.
C1 noun /rɪˈflɛktər/

reflector

reflector
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.
El ciclista colocó un reflector rojo en la parte trasera de su bicicleta para mayor seguridad.
B2 verb /rɪˈkleɪm/

reclaim

recuperar
Meaning
To take back or recover something; to restore to a usable state.
Example
The farmer worked to reclaim the barren land.
El agricultor trabajó para recuperar la tierra estéril.
C2 verb /rɪˈvaɪl/

revile

despreciar
Meaning
to criticize in an abusive or angrily insulting manner
Example
The politician was reviled by the public for his corruption.
El político fue despreciado por el público debido a su corrupción.
C1 noun ˌriːˌvaɪ.təl.aɪˈzeɪ.ʃən

revitalization

revitalización
Meaning
The action of giving new life and vitality to something.
Example
Proper rest and nutrition lead to revitalization of the body.
El descanso adecuado y la nutrición conducen a la revitalización del cuerpo.
C1 noun /ˌres.ɪˈteɪ.ʃən/

Recitation

recitación
Meaning
the action of reciting or repeating aloud from memory
Example
The poetry recitation contest was held in the auditorium.
El concurso de recitación de poesía se llevó a cabo en el auditorio.
B2 noun /ˈrɪdəl/

Riddle

acertijo
Meaning
a question or statement intentionally phrased so as to require ingenuity in ascertaining its answer or meaning; a puzzle
Example
The ancient riddle stumped all the scholars for years.
El antiguo acertijo desconcertó a todos los eruditos durante años.
B2 adjective /rɪˈspɒn.sɪv/

Responsive

responsivo
Meaning
reacting quickly and positively; readily reacting to suggestions or changes
Example
The website is very responsive and loads quickly on all devices.
El sitio web es muy responsivo y carga rápidamente en todos los dispositivos.
A2 verb /raɪz/

rise

elevar
Meaning
to move upward; to get up from bed; to increase
Example
The sun rises in the east.
El sol sale por el este.
C2 noun /roʊˈtʌn.də/

rotunda

edificio redondo
Meaning
a large circular building or hall, often with a dome
Example
Tourists gathered inside the grand rotunda of the capitol.
Los turistas se reunieron dentro de la gran rotonda del capitolio.
B2 adverb /rɪˈmɑːrkəbli/

remarkably

de manera asombrosa
Meaning
in a way that is worthy of attention or notice; surprisingly
Example
She did remarkably well in the competition.
Ella lo hizo de manera asombrosa en la competencia.
B1 noun /rɪˈkwɛst/

request

solicitud
Meaning
a formal or polite demand for something
Example
She made a request for additional time to complete the project.
Ella hizo una solicitud de tiempo adicional para completar el proyecto.
C1 noun ˈredʒ.ɪ.strɑːr

registrar

registrador
Meaning
An official responsible for keeping records or registers.
Example
The registrar oversees all administrative tasks.
El registrador supervisa todas las tareas administrativas.
B2 noun /ˌrezəˈveɪʃən/

Reservation

reserva
Meaning
the action of reserving something; an arrangement whereby something is reserved for a particular person; a qualification to an expression of agreement or approval
Example
I made a reservation at the restaurant for tonight.
Hice una reserva en el restaurante para esta noche.
A2 adjective /rɪˈspɒn.sə.bəl/

Responsible

responsable; responsable de; digno de confianza y confiable
Meaning
accountable; having duties; reliable and trustworthy
Example
Parents are responsible for their children's education and well-being.
Los padres son responsables de la educación y el bienestar de sus hijos.
B2 verb /rɪˈzɑlv/

resolve

resolver
Meaning
to solve a problem; to decide firmly
Example
The manager resolves the conflict between employees.
El gerente resuelve el conflicto entre los empleados.
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.
C1 noun ˌræʃ.ən.əl.ɪˈzeɪ.ʃən

rationalization

racionalización
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.
Su racionalización del error no fue convincente.
B1 adjective ˈriː.dʒən.əl

regional

regional
Meaning
Relating to or characteristic of a region.
Example
Regional hubs support localized industries.
Los centros regionales apoyan a las industrias locales.
C1 noun /rɪˈspɒnsɪvnəs/

responsiveness

sensibilidad
Meaning
The quality of reacting quickly and positively
Example
The manager appreciated her responsiveness to customer feedback.
El gerente apreció su sensibilidad ante los comentarios de los clientes.
C1 noun /rɪˈmɛmbrəns/

remembrance

recuerdo
Meaning
the act of remembering or honoring someone or something
Example
A service was held in remembrance of the fallen soldiers.
Se celebró un servicio en recuerdo de los soldados caídos.
B2 verb rɪˈzaɪn

resign

renunciar
Meaning
Voluntarily leave a job or other position.
Example
Ministers were forced to resign.
Los ministros fueron obligados a renunciar.
A2 noun /ræt/

Rat

rata
Meaning
a large long-tailed rodent that is typically considered a pest
Example
The rat scurried across the kitchen floor.
La rata correteó por el suelo de la cocina.
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.
C1 noun /ˈrɛɡjəleɪtər/

regulator

regulador
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.
El gobierno nombró un nuevo regulador para el sector financiero.
C1 verb /ˈrɪvɪt/

rivet

asegurar con remache / captar la atención
Meaning
to fasten or secure with a rivet; to hold someone’s attention firmly
Example
The craftsman riveted the metal plates together.
El artesano riveteó las placas de metal juntas.
B1 verb /rɪˈliːs/

release

liberar
Meaning
to set free; to allow something to escape or go away
Example
The prisoner was released after ten years.
El prisionero fue liberado después de diez años.
B2 noun ˌriːkənˈstrʌkʃn

reconstruction

reconstrucción
Meaning
The action or process of reconstructing or being reconstructed.
Example
The reconstruction project took years.
El proyecto de reconstrucción tomó años.
C2 noun /ˈrɛkluːsəri/

reclusory

lugar de retiro
Meaning
A place for seclusion or retreat, especially for a recluse or hermit.
Example
The monk spent years in the reclusory away from society.
El monje pasó años en el lugar de retiro alejado de la sociedad.
A2 noun /ˈroʊbɒt/

robot

robot
Meaning
a machine capable of carrying out a complex series of actions automatically
Example
The factory uses robots to assemble cars efficiently.
La fábrica usa robots para ensamblar coches de manera eficiente.
C1 adjective /rɪˈper.ə.bəl/

Repairable

reparable
Meaning
able to be fixed or mended; capable of being repaired
Example
The broken phone is repairable with the right parts.
El teléfono roto se puede reparar con las piezas adecuadas.
B1 noun riˈækʃən

reaction

reacción
Meaning
An action performed or a feeling experienced in response to a situation or event.
Example
The arrests triggered a reaction.
Las detenciones desencadenaron una reacción.
B1 noun, verb /ˈrɒkɪt/

rocket

felicidad
Meaning
a missile or vehicle propelled by a rocket engine; to increase or move very quickly
Example
The company’s profits rocketed after the new product launch.
No pudo ocultar su felicidad cuando recibió el premio.
B2 noun /rʌst/

Rust

óxido
Meaning
reddish-brown coating formed on iron or steel by oxidation; corrosion
Example
The old car was covered in rust after years of neglect.
El viejo coche estaba cubierto de óxido después de años de descuido.
C2 verb /ˌrɛprɪˈhɛnd/

reprehend

reprender
Meaning
to express disapproval or criticism of someone or something
Example
The teacher reprehended the student for being dishonest.
El maestro reprendió al estudiante por ser deshonesto.
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.
C2 noun /ˈrɛtɪnjuː/

retinue

seguidores
Meaning
A group of attendants or followers accompanying an important person.
Example
The king entered the hall followed by his retinue.
El rey entró al salón seguido por sus seguidores.
C2 noun /rɪˈvaɪ.zəl/

revisal

revisión
Meaning
The act of revising, reviewing, or making changes to something.
Example
The revisal of the contract took longer than expected.
La revisión del contrato tomó más tiempo de lo esperado.
B2 noun /ˈreɪn.dʒər/

ranger

guardabosques
Meaning
A person responsible for protecting and managing forests, parks, or natural areas.
Example
The park ranger guided the tourists through the forest trail.
El guardabosques del parque guió a los turistas por el sendero del bosque.
C2 verb /rɛnd/

rend

rasgar
Meaning
to tear something apart violently or forcefully
Example
The explosion rent the air with a deafening noise.
La explosión rasgó el aire con un ruido ensordecedor.
C1 noun /rɪˈvɜːrʒən/

reversion

reversión
Meaning
the act of returning to a previous state or condition
Example
The new policy marked a reversion to traditional methods.
La nueva política marcó una reversión a los métodos tradicionales.
B2 adjective /ˈrɑː.ki/

Rocky

rocoso; inestable; difícil
Meaning
full of rocks; unsteady; difficult
Example
The rocky path made hiking difficult for the tourists.
El camino rocoso hizo que el senderismo fuera difícil para los turistas.
C1 adjective /rɪˈɡrɛtfəl/

regretful

arrepentido
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.
Ella le dio una sonrisa arrepentida mientras se alejaba.
C1 adjective /ˈræmʃækəl/

ramshackle

deteriorado
Meaning
poorly built or maintained; in a state of disrepair
Example
They lived in a ramshackle old house on the edge of town.
Vivían en una casa deteriorada en el borde de la ciudad.
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.
C2 noun /ˈreɪmənt/

raiment

atuendo
Meaning
clothing, especially fine or formal wear
Example
The king wore royal raiment during the ceremony.
El rey usó atuendo real durante la ceremonia.
C1 noun /rɪˈpreʃən/

Repression

represión
Meaning
the action of subduing someone or something by force; the restraint, prevention, or inhibition of a feeling, impulse, etc.
Example
The government's repression of free speech sparked widespread protests.
La represión del gobierno contra la libertad de expresión provocó protestas generalizadas.
C1 adjective /rɪˈpɛlənt/

repellent

repelente
Meaning
Able to drive away something, especially insects or unpleasant things; causing disgust or distaste.
Example
This cream is highly effective as a mosquito repellent.
Esta crema es muy efectiva como repelente de mosquitos.
C2 noun /raɪm/

rime

escarcha
Meaning
frost formed on cold surfaces by freezing water vapor
Example
The trees were covered with a white rime after the cold night.
Los árboles estaban cubiertos con una capa blanca de escarcha después de la fría noche.
C1 noun /rɪˈdʒɔɪsɪŋ/

rejoicing

alegría
Meaning
The action of showing great joy or happiness
Example
There was much rejoicing after the victory.
Hubo mucha alegría después de la victoria.
B2 verb /rɪˈkʌvərɪŋ/

recovering

recuperándose
Meaning
the process of getting better after illness, loss, or difficulty
Example
She is still recovering from the flu.
Ella todavía se está recuperando de la gripe.
C1 noun /rɑk sɔlt/

Rock Salt

sal de roca
Meaning
natural salt crystals formed from evaporated ancient seas; unrefined salt
Example
Rock salt is considered healthier than table salt.
La sal de roca se considera más saludable que la sal de mesa.
C1 adjective /rɪˈsɔːrs ɪˈfɪʃ.ənt/

resource-efficient

eficiente en el uso de recursos
Meaning
Using resources in a way that minimizes waste and maximizes productivity.
Example
Resource-efficient farming conserves water and energy.
La agricultura eficiente en el uso de recursos conserva agua y energía.
B2 verb /ˌriːˈbɪld/

rebuild

reconstruir
Meaning
to build something again after it has been damaged or destroyed
Example
The villagers worked together to rebuild the bridge after the flood.
Los aldeanos trabajaron juntos para reconstruir el puente después de la inundación.
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.
B2 noun ˌrɛzɪɡˈneɪʃən

resignation

renuncia
Meaning
The acceptance of something undesirable but inevitable; giving up.
Example
Her resignation from the position was unexpected.
Su renuncia al puesto fue inesperada.
B2 verb /ˌriː.kənˈsɪd.ər/

reconsider

reconsiderar
Meaning
to think about something again, especially to change a decision or opinion
Example
She decided to reconsider her decision about moving abroad.
Ella decidió reconsiderar su decisión sobre mudarse al extranjero.
B2 verb /ˌriː.kənˈstrʌkt/

reconstruct

reconstruir
Meaning
to build or form something again after it has been damaged or destroyed
Example
The city was reconstructed after the earthquake.
La ciudad fue reconstruida después del terremoto.
B1 adjective /rɪˈleɪ.tɪd/

Related

relacionado; vinculado
Meaning
connected; associated; having a connection or relationship
Example
These two problems are closely related to each other.
Estos dos problemas están estrechamente relacionados entre sí.
C2 adjective /rɪˈzɪstləs/

resistless

irresistible
Meaning
Impossible to resist; having an overpowering effect.
Example
She felt a resistless urge to laugh at the joke.
Ella sintió un impulso irresistible de reírse de la broma.
C2 adjective /ˈrɛkənˌdaɪt/ or /ˈrɛkəndaɪt/

recondite

poco conocido o difícil de entender
Meaning
Little known or difficult to understand.
Example
The professor’s lecture was full of recondite theories.
La conferencia del profesor estaba llena de teorías reconditas.
C2 noun /rɪˈmɒnstrəns/

remonstrance

protesta
Meaning
A forceful protest or objection.
Example
The workers’ remonstrance against unfair treatment was ignored.
La protesta de los trabajadores contra el trato injusto fue ignorada.
C1 verb /rɪˈdrɛs/

redress

remediar
Meaning
to set right, remedy, or compensate for a wrong or grievance
Example
The company promised to redress the complaints of its customers.
La compañía prometió remediar las quejas de sus clientes.
C2 noun /roʊˈtʌn.də.ti/

rotundity

redondez
Meaning
the quality of being round or plump
Example
The rotundity of the balloon made it float gracefully.
La redondez del globo lo hizo flotar elegantemente.
C1 verb /rɪˈɡrɛs/

regress

retroceder
Meaning
To return to a former or less developed state.
Example
Without proper guidance, the child's progress began to regress.
Sin una guía adecuada, el progreso del niño comenzó a retroceder.
B2 verb /reɪl/

rail

quejarse
Meaning
to complain or protest strongly about something
Example
He railed against the unfair decision.
Él se quejó contra la decisión injusta.
A2 noun rɪˈspɛkt

respect

respeto
Meaning
A feeling of deep admiration for someone or something.
Example
We should show respect to the freedom fighters.
Debemos mostrar respeto a los luchadores por la libertad.
B2 noun /ˌrɛɡ.jʊˈleɪ.ʃən/

regulation

una norma o directriz hecha y mantenida por una autoridad
Meaning
A rule or directive made and maintained by an authority.
Example
Government regulation ensures fair business practices.
La regulación gubernamental asegura prácticas comerciales justas.
C2 adjective /ˈræfɪʃ/

raffish

poco convencional y algo desacreditado pero atractivo
Meaning
unconventional and slightly disreputable but attractive
Example
He had a raffish charm that made him popular in the city.
Él tenía un encanto raffish que lo hizo popular en la ciudad.
C1 adjective /rɪˈdʒɛn.ə.rə.tɪv/

regenerative

regenerativo
Meaning
Able to restore or renew damaged environments, soil, or resources.
Example
Regenerative farming improves soil health and biodiversity.
La agricultura regenerativa mejora la salud del suelo y la biodiversidad.
C1 verb /rɪˈsʌsɪteɪt/

resuscitate

resucitar
Meaning
to revive someone from unconsciousness or apparent death
Example
The doctors tried to resuscitate the patient after the heart attack.
Los doctores intentaron resucitar al paciente después del ataque al corazón.
C1 noun /ˈrɛpərˌtɔːri/

repertory

repertorio
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.
El teatro tiene un repertorio de obras clásicas.
B2 noun /ˈraɪvəl/

Rival

rival; competidor;
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.
Las dos empresas han sido rivales comerciales durante décadas.
B2 noun /rɪˈfɔːr.mər/

Reformer

reformista
Meaning
a person who works to bring about positive changes in society or institutions
Example
The social reformer dedicated her life to improving education for all children.
La reformista social dedicó su vida a mejorar la educación para todos los niños.
C1 adjective /ˈrɛzənənt/

resonant

resonante
Meaning
Deep, clear, and continuing to sound or echo.
Example
The resonant voice of the speaker filled the hall.
La voz resonante del orador llenó la sala.
A1 noun ˈræbɪt

rabbit

conejo
Meaning
A small mammal with long ears, long hind legs, and a short tail
Example
The rabbit ran quickly into the forest.
El conejo corrió rápidamente hacia el bosque.
B2 noun rɪsk ˈfæktər

risk factor

factor de riesgo
Meaning
Something that increases the likelihood of developing a disease or condition
Example
Water pollution is a significant risk factor for health.
La contaminación del agua es un factor de riesgo significativo para la salud.
C1 noun /rɪˈnaʊn/

Renown

renombre; fama
Meaning
the condition of being known or talked about by many people; fame
Example
The scientist achieved international renown for her discoveries.
La científica alcanzó renombre internacional por sus descubrimientos.
B1 verb /rɪˈfɜː/

refer

referir
Meaning
to mention or allude to something; to direct someone to a source of information
Example
Please refer to page 45 for more details.
Por favor, consulte la página 45 para más detalles.
C1 noun /ˈriːpər/

reaper

una persona o máquina que corta y recoge cultivos
Meaning
a person or machine that cuts and gathers crops
Example
The reaper moved slowly through the golden fields.
El ríper se movió lentamente a través de los campos dorados.
B2 adjective rɪˈnaʊnd

renowned

renombrado
Meaning
Known or talked about by many people; famous.
Example
The renowned scientist led the reform panel.
El renombrado científico dirigió el panel de reforma.
C1 noun /rəʊˈbɒt.ɪk ˈsɜː.dʒər.i/

robotic surgery

cirugía robótica
Meaning
Surgery performed with the assistance of robotic systems to enhance precision and reduce invasiveness.
Example
Robotic surgery enhances precision in complex procedures.
La cirugía robótica mejora la precisión en procedimientos complejos.
C1 noun /ˈriːkɔːrs/

recourse

recurso, ayuda
Meaning
a source of help or protection in a difficult situation
Example
The students had no recourse but to appeal to the principal.
Los estudiantes no tenían otro recurso que apelar al director.
C2 adjective /rɪˈtɪkjʊlət/

reticulate

reticulado
Meaning
Having a net-like pattern or structure.
Example
The leaf had a reticulate pattern of veins.
La hoja tenía un patrón reticulado de venas.
C1 noun /ˌrɛkwɪˈzɪʃən/

requisition

requisición
Meaning
An official order laying claim to the use of property or materials; a formal demand or request.
Example
The manager submitted a requisition for new office supplies.
El gerente presentó una requisición para nuevos suministros de oficina.
B1 noun /rɪˈvɪʒ.ən/

Revision

revisión; edición revisada
Meaning
the action of revising; a revised edition or form of something; review of subject matter
Example
The students spent hours doing revision for their final exams.
Los estudiantes pasaron horas haciendo revisión para sus exámenes finales.
C1 adjective /ˈrek.wɪ.zɪt/

Requisite

requisito; necesario
Meaning
made necessary by particular circumstances; required
Example
Good communication skills are requisite for this job.
Las habilidades de comunicación son requisito para este trabajo.
A2 adjective /rɪtʃ/

Rich

rico; adinerado; valioso
Meaning
having a lot of money or valuable possessions; abundant in nutrients or flavor
Example
The rich businessman donated money to the charity.
El rico empresario donó dinero a la caridad.
A1 adjective /raʊnd/

round

redondo
Meaning
having a circular shape; shaped like a sphere or disk
Example
The table was round and had a smooth surface.
La mesa era redonda y tenía una superficie lisa.
A2 verb /rɪˈkwaɪər/

require

necesitar
Meaning
to need something; to demand or insist on
Example
This job requires excellent communication skills.
Este trabajo requiere excelentes habilidades de comunicación.
B1 noun /rɪsk/

Risk

felicidad
Meaning
a situation involving exposure to danger; the possibility of something bad happening
Example
Taking this investment carries a high risk of losing money.
No pudo ocultar su felicidad cuando recibió el premio.