reward
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B1 noun /rɪˈwɔːd/

reward

recompensa
Meaning
something given in recognition of service, effort, or achievement
Example
He received a reward for returning the lost wallet.
Recibió una recompensa por devolver la billetera perdida.
C2 noun /ˈrɒndoʊ/

rondo

composición musical (con tema recurrente)
Meaning
a musical composition with a recurring leading theme
Example
The pianist ended the recital with a lively rondo.
El pianista terminó el recital con un rondó animado.
B2 adjective /ˈrʌs.ti/

Rusty

oxidado; fuera de práctica; afectado por la falta de práctica reciente
Meaning
affected by rust; out of practice; impaired by lack of recent practice
Example
My piano skills are rusty after not playing for years.
Mis habilidades en el piano están oxidadas después de no tocar durante años.
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.
C1 noun /rɪˌtæl.iˈeɪ.ʃən/

Retaliation

represalia
Meaning
the action of returning a military attack; counterattack; revenge for an injury or wrong
Example
The country threatened retaliation against any act of aggression.
El país amenazó con represalias contra cualquier acto de agresión.
C1 verb /riːˈfɜːrbɪʃ/

refurbish

rehacer
Meaning
To renovate or redecorate something, especially a building.
Example
The company decided to refurbish its old office.
La empresa decidió renovar su oficina antigua.
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 /rɪˈflɛksəbl/

reflexible

reflexivo
Meaning
Capable of being reflected or bent back.
Example
The surface was highly reflexible, bouncing light in different directions.
La superficie era altamente reflexiva, reflejando la luz en diferentes direcciones.
B2 noun /ˈrest.ləs.nəs/

Restlessness

inquietud
Meaning
the inability to rest or relax as a result of anxiety or boredom
Example
His restlessness during the long meeting was obvious to everyone.
Su inquietud durante la larga reunión fue obvia para todos.
B2 adverb /rɪˈlʌk.tənt.li/

Reluctantly

de mala gana
Meaning
in an unwilling manner; with hesitation or resistance
Example
She reluctantly agreed to help with the project.
Ella aceptó ayudar con el proyecto de mala gana.
C1 noun /rɪˈpɑːzɪtɔːri/

repository

repositorio
Meaning
a place where things are stored or kept for safekeeping
Example
The library serves as a repository of knowledge.
La biblioteca sirve como un repositorio de conocimiento.
B2 verb /ˌriːjuˈnaɪt/

reunite

reunir
Meaning
to bring together again after separation
Example
The family was reunited after many years.
La familia se reunió después de muchos años.
C1 verb /ˈrʌf.l̩/

ruffle

desordenar, molestar
Meaning
to disturb the smoothness of something; to annoy or upset someone
Example
The wind ruffled her hair.
El viento desordenó su cabello.
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 noun, verb /ˈriːteɪl/

retail

venta al por menor
Meaning
the sale of goods to the public in small quantities for use or consumption rather than for resale
Example
The company specializes in the retail of clothing and accessories.
La empresa se especializa en la venta al por menor de ropa y accesorios.
B1 verb /rɪˈvjuː/

review

revisar
Meaning
to examine or assess something again; to write a critical evaluation
Example
I need to review my notes before the exam.
Necesito revisar mis notas antes del examen.
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.
C2 adjective /ˈrɛstɪv/

restive

inquieto
Meaning
unable to stay still or silent; restless and impatient
Example
The crowd grew restive as they waited for the concert to begin.
La multitud se volvió inquieta mientras esperaban a que comenzara el concierto.
C1 verb rɪˈplɛn.ɪʃ

replenish

reponer
Meaning
Fill something up again.
Example
Drinking water helps replenish lost fluids in the body.
Beber agua ayuda a reponer los líquidos perdidos en el cuerpo.
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.
B1 adjective /rɪˈkwaɪəd/

required

requerido
Meaning
necessary or compulsory
Example
A visa is required to enter the country.
Se requiere una visa para entrar al país.
C2 noun /rɪˌnʌnsiˈeɪʃən/

renunciation

renuncia
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.
Su renuncia a los placeres mundanos impresionó a los monjes.
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.
C2 verb /rɪˈkwaɪt/

requite

corresponder
Meaning
to return or repay a favor, service, or feeling
Example
She requited his kindness with a thoughtful gift.
Ella correspondió su amabilidad con un regalo pensado.
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.
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 verb /ræm/

ram

embestir
Meaning
to strike or push something with great force
Example
The truck rammed into the wall.
El camión embistió contra la pared.
A2 verb /rɪˈpiːt/

repeat

repetir
Meaning
to say or do something again
Example
Could you please repeat what you just said?
¿Puedes repetir lo que acabas de decir?
C1 verb /ˈræn.sæk/

ransack

saquear
Meaning
to search a place roughly and steal or damage things
Example
Burglars ransacked the house while the family was away.
Los ladrones saquearon la casa mientras la familia estaba fuera.
C1 verb /ˈrʌm.ɪdʒ/

rummage

registrar desordenadamente
Meaning
to search through something in a disorderly way
Example
He rummaged through the drawer for his keys.
Él registró el cajón en busca de sus llaves.
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 /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.
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.
C1 noun /rɪˈspɒndənt/

respondent

encuestado
Meaning
A person who replies to something, especially in a survey or legal case
Example
The survey had over 1,000 respondents.
La encuesta tuvo más de 1000 encuestados.
B1 adjective /ˈriː.zən.ə.bəl/

Reasonable

razonable; justo y práctico; no demasiado caro; lógico
Meaning
fair and sensible; not too expensive; logical and practical
Example
The hotel offers reasonable prices for quality accommodation.
El hotel ofrece precios razonables para alojamiento de calidad.
C2 noun /ˈriːbəs/

rebus

rebus
Meaning
a puzzle in which words are represented by pictures, symbols, or letters
Example
The children enjoyed solving the rebus puzzles in the magazine.
A los niños les encantaba resolver los rompecabezas de rebus en la revista.
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 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.
C2 noun /ˌrækənˈtɜːr/

Raconteur

felicidad
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.
Ella no pudo ocultar su felicidad cuando recibió el premio.
C1 verb /rɪˈpiːl/

repeal

derogar
Meaning
To officially cancel or revoke a law or decision.
Example
The government decided to repeal the outdated law.
El gobierno decidió derogar la ley obsoleta.
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.
B1 verb /rɪˈleɪt/

relate

relatar
Meaning
to connect or show a link between; to tell a story
Example
She relates her experience to the audience.
Ella relata su experiencia a la audiencia.
B1 adjective /rɪˈmɑːrkəbl/

Remarkable

notable; extraordinario; digno de atención;
Meaning
worthy of attention; extraordinary; notable;
Example
His recovery from the illness was remarkable.
Su recuperación de la enfermedad fue notable.
C1 noun/verb /rɪˈproʊtʃ/

reproach

reproche / crítica
Meaning
An expression of disapproval or disappointment; to criticize someone for doing wrong.
Example
She reproached him for arriving late to the meeting.
Ella le reprochó por llegar tarde a la reunión.
C1 noun /ˈrɪɡər/

rigor

rigor
Meaning
strictness, severity, or demanding conditions
Example
The training was carried out with great rigor.
El entrenamiento se llevó a cabo con gran rigor.
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.
A1 noun /roʊd/

road

camino
Meaning
a wide way leading from one place to another
Example
We drove along the road to the village.
Conducíamos por el camino hacia el pueblo.
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 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.
B2 adjective /rɪˈzɪl.i.ənt/

resilient

resistente
Meaning
Able to withstand or recover quickly from difficult conditions.
Example
Resilient materials ensure durability.
Los materiales resistentes aseguran durabilidad.
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 noun/verb rɪˈfɔːm

reform

reforma
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.
La reforma en el sistema educativo era una prioridad.
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.
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.
C1 adjective /rɪˈkʌr.ənt/

Recurrent

recurrente
Meaning
happening repeatedly; occurring again and again; periodic;
Example
She has been suffering from recurrent headaches for months.
Ella ha estado sufriendo dolores de cabeza recurrentes durante meses.
C1 verb /ˌriːhəˈbɪlɪteɪt/

rehabilitate

rehabilitar
Meaning
to restore someone to health, normal life, or a good condition after illness, injury, or imprisonment
Example
The clinic helps rehabilitate injured athletes.
La clínica ayuda a rehabilitar a los atletas lesionados.
C1 noun /ˈruːdɪmənt/

rudiment

rudimentos
Meaning
A basic principle, element, or fundamental part of something.
Example
He learned the rudiments of music before joining the band.
Él aprendió los rudimentos de la música antes de unirse a la banda.
B1 adverb /rɪˈpiː.tɪd.li/

Repeatedly

repetidamente; una y otra vez
Meaning
again and again; many times over
Example
He repeatedly asked for help with his homework.
Él pidió ayuda repetidamente con su tarea.
C1 adjective /ˌrɛmɪˈnɪsənt/

reminiscent

rememorativo
Meaning
Tending to remind one of something; suggestive of something in the past.
Example
The smell of rain is reminiscent of my childhood in the village.
El olor a lluvia es rememorativo de mi infancia en el pueblo.
B2 noun rɪˈsɛʃ.ən

recession

recesión
Meaning
A period of temporary economic decline during which trade and industrial activity are reduced.
Example
The country faced a severe recession due to the financial crisis.
El país enfrentó una recesión severa debido a la crisis financiera.
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.
C2 noun /ˈrɪɡməˌroʊl/

rigmarole

lío
Meaning
a long, complicated, and confusing process or story
Example
Getting a visa was such a rigmarole of paperwork and interviews.
Obtener una visa fue un lío de papeleo y entrevistas.
C2 noun/adjective /rɪˈmɒnstrənt/

remonstrant

protestante
Meaning
A person who makes a forceful protest (noun); protesting or objecting (adjective).
Example
He was a remonstrant voice in the assembly.
Él fue una voz de protesta en la asamblea.
C1 verb /riːˈpeɪ.tri.eɪt/

repatriate

repatriar
Meaning
To return someone to their own country, often after war or imprisonment.
Example
The government worked to repatriate the refugees safely.
El gobierno trabajó para repatriar a los refugiados de manera segura.
B1 noun /roʊˈmæns/

Romance

romance
Meaning
a feeling of excitement and mystery associated with love; a love affair or relationship
Example
Their romance began when they met at the university library.
Su romance empezó cuando se conocieron en la biblioteca de la universidad.
C1 noun /ˈrɛl.ɪk/

relic

reliquia
Meaning
an object surviving from an earlier time, often of historical or religious interest
Example
The museum displayed relics from the ancient civilization.
El museo exhibió reliquias de la antigua civilización.
B1 noun /rɪˈkwaɪə(r)mənt/

requirement

requisito
Meaning
something that is necessary or demanded
Example
The job has specific educational requirements.
El trabajo tiene requisitos educativos específicos.
C2 adjective /rɪˈmjuːnərətɪv/

remunerative

remunerativo
Meaning
Financially rewarding or profitable.
Example
He chose a remunerative career in medicine.
Eligió una carrera remunerada en medicina.
C2 adjective /rɪˈfræɡəbəl/

refragable

refutable
Meaning
Capable of being refuted or disproved.
Example
His argument was weak and easily refragable.
Su argumento era débil y fácilmente refutable.
B1 noun /rɪˈkʌvəri/

recovery

recuperación
Meaning
the process of recovering or returning to a normal state
Example
The patient is in recovery after the surgery.
El paciente está en recuperación después de la cirugía.
C1 verb /ˌriːɪnˈtɪɡreɪt/

reintegrate

reintegrar
Meaning
To bring someone or something back into a group or society after being separated.
Example
The program helps prisoners reintegrate into society.
El programa ayuda a los prisioneros a reintegrarse en la sociedad.
C1 verb rɪˈlɪŋ.kwɪʃ

relinquish

renunciar
Meaning
To give up any authority, responsibility, or property.
Example
He decided to relinquish his position as CEO.
Él decidió renunciar a su puesto como CEO.
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.
A2 verb /reɪz/

raise

levantar / aumentar
Meaning
To lift or move something to a higher position; to increase; to bring up.
Example
She raised her hand to ask a question.
Ella levantó su mano para hacer una pregunta.
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.
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.
C2 verb /ˌriː.kəˈnɔɪ.tər/

reconnoiter

reconocer
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.
Los soldados reconocieron el área antes de avanzar.
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.
B2 adjective ˌriːprəˈdʌktɪv

reproductive

reproductivo
Meaning
Relating to the reproduction of offspring.
Example
The reproductive cycle of pests can cause rapid infestations.
El ciclo reproductivo de las plagas puede causar infestaciones rápidas.
B2 noun /rɪˈvaɪ.vəl/

Revival

renacimiento
Meaning
an improvement in the condition or strength of something; renewed interest in or attention to something
Example
There has been a revival of interest in traditional crafts.
Ha habido un renacimiento del interés en los oficios tradicionales.
C1 verb /ˈrevəl/

revel

regocijarse
Meaning
to enjoy oneself in a lively and noisy way; to take great pleasure in
Example
They revel in their success.
Ellos se regocijan en su éxito.
C2 verb /rɪˈsɪnd/

rescind

rescindir
Meaning
to revoke, cancel, or repeal a law, order, or agreement
Example
The company decided to rescind the job offer.
La empresa decidió rescindir la oferta de trabajo.
C1 noun /ræmˈbuːtən/

Rambutan

rambután
Meaning
a tropical fruit with red spiky skin and white translucent sweet flesh similar to litchi
Example
The rambutan looks scary with its hairy skin but tastes very sweet inside.
El rambutan se ve aterrador con su piel peluda, pero tiene un sabor muy dulce por dentro.
B2 verb /rɪˈvaɪv/

revive

revivir
Meaning
To bring back to life, consciousness, or activity.
Example
The paramedics managed to revive the unconscious man.
Los paramédicos lograron revivir al hombre inconsciente.
B2 verb /rɪˈteɪn/

retain

retener
Meaning
to keep possession of something
Example
The company decided to retain its experienced employees.
La empresa decidió retener a sus empleados experimentados.
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 /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 /ˌriːhəˌbɪlɪˈteɪʃən/

rehabilitation

felicidad
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.
Ella no pudo esconder su felicidad cuando recibió el premio.
B2 verb /ˈrendər/

render

proporcionar
Meaning
to provide or give; to make or cause to become
Example
The artist renders the scene beautifully.
El artista presenta la escena bellamente.
B2 noun/adjective /rɪˈpʌblɪkən/

republican

republicano
Meaning
a member or supporter of a republican political party or system
Example
The republican candidate won the election.
El candidato republicano ganó las elecciones.
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.
C2 noun /rɪˌkrɪmɪˈneɪʃən/

recrimination

contrademanda
Meaning
an accusation made in response to an accusation; mutual blaming
Example
The debate quickly descended into mutual recriminations.
El debate rápidamente descendió en recriminaciones mutuas.
C1 noun /ˈrɛzɪn/

resin

resina
Meaning
a sticky organic substance, usually secreted by plants, often used in varnishes or plastics
Example
The craftsman used natural resin to make the sculpture shine.
El artesano usó resina natural para hacer que la escultura brillara.
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 noun /ˈrɛv.ər.i/

reverie

soñar despierto; ensoñación
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.
Perdido en la ensoñación, no oyó que llamaban su nombre.
B2 adverb /rɪˈspektɪvli/

Respectively

respectivamente; en el orden dado; separadamente y en el orden ya mencionado
Meaning
in the order given; separately and in the order already mentioned
Example
John and Mary are 25 and 30 years old respectively.
John y Mary tienen 25 y 30 años respectivamente.
C2 adjective /raɪˈpɛə.ri.ən/

riparian

relativo o situado en las orillas de un río u otro cauce de agua
Meaning
Relating to or situated on the banks of a river or other watercourse.
Example
Riparian vegetation helps prevent soil erosion along rivers.
La vegetación ribereña ayuda a prevenir la erosión del suelo a lo largo de los ríos.
C1 noun /rɪdʒ/

ridge

cima o cresta de una montaña
Meaning
a long, narrow hilltop, mountain range, or raised strip
Example
We walked along the mountain ridge.
Caminamos a lo largo de la cresta de la montaña.
B1 adverb /ˈruːdli/

Rudely

groseramente
Meaning
in an impolite or discourteous manner
Example
He rudely interrupted the speaker during the presentation.
Interrumpió groseramente al orador durante la presentación.
B2 adverb /ruːˈtiːnli/

routinely

rutinariamente
Meaning
as part of a regular procedure; habitually
Example
The staff routinely checks the equipment for safety.
El personal revisa rutinariamente el equipo para verificar su seguridad.
B1 noun /rɪˈzɔː.sɪz/

resources

recursos
Meaning
A stock or supply of money, materials, staff, and other assets.
Example
The region was rich in herbal resources.
La región estaba rica en recursos herbales.
C1 verb /ˌriːˈvaɪ.t̬əl.aɪz/

revitalize

revitalizar
Meaning
To restore energy and effectiveness to something.
Example
The new policies aim to revitalize the economy.
Las nuevas políticas tienen como objetivo revitalizar la economía.
B1 noun /ˈrʌbər/

rubber

felicidad
Meaning
a tough elastic substance made from the latex of tropical plants or synthetically, used for making tires, boots, and other products.
Example
The tires are made of natural rubber.
Ella no pudo ocultar su felicidad cuando recibió el premio.
B1 noun /rɪˈspɒns/

Response

respuesta; reacción
Meaning
a reaction to something; an answer or reply; the way in which something reacts to external stimulus
Example
The government's response to the crisis was swift and decisive.
La respuesta del gobierno a la crisis fue rápida y decisiva.
B1 noun rɪˈsɜː.tʃəz

researchers

investigadores
Meaning
People who study and investigate to discover new information or facts.
Example
Researchers are working on innovative solutions.
Los investigadores están trabajando en soluciones innovadoras.
C2 noun /ˌrɛprəˈbeɪʃən/

reprobation

reprobación
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.
El rostro del profesor mostró una clara reprobación ante el comentario grosero del estudiante.
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.
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.
C1 noun /ˈrɛspɪt/

respite

respiro
Meaning
A short period of rest or relief from something difficult or unpleasant.
Example
The weekend provided a welcome respite from work.
El fin de semana proporcionó un respiro bienvenido del trabajo.
B2 verb /ˈreɪn.dʒɪŋ/

ranging

oscilar
Meaning
Extending or varying between limits.
Example
The temperatures are ranging from 15 to 30 degrees this week.
Las temperaturas están oscilando de 15 a 30 grados esta semana.
B2 adjective /ˈræp.ɪd/

Rapid

rápido; veloz; ágil;
Meaning
happening in a short time or at a fast pace
Example
The rapid growth of technology has changed our daily lives.
El rápido crecimiento de la tecnología ha cambiado nuestra vida diaria.
B2 noun /rʌʃ/

Rush

prisa; apresuramiento
Meaning
a sudden quick movement toward something; a period of great activity or demand; hurry
Example
There was a rush to buy tickets for the concert.
Hubo una prisa por comprar boletos para el concierto.
B2 verb /reɪn/

reign

reinar
Meaning
to rule as a king or queen; to be dominant
Example
The queen reigned for over sixty years.
La reina reinó durante más de sesenta años.
B2 adjective /ˈreɪʃəl/

racial

racial
Meaning
relating to a race of people
Example
Racial equality is an important issue in many societies.
La igualdad racial es un tema importante en muchas sociedades.
C1 noun /rɪˈdʒɪdəti/

Rigidity

rigidez
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.
La rigidez del antiguo sistema impidió cualquier innovación.
B2 noun /ˈreɪsɪzəm/

racism

racismo
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.
La organización trabaja para eliminar el racismo en todas sus formas.
C1 verb /raɪl/

rile

irritar
Meaning
to irritate or annoy someone
Example
His careless comments really riled her.
Sus comentarios descuidados realmente la irritaron.
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.
C1 noun /rɪˈtrækʃən/

retraction

revocación, retractación
Meaning
the act of taking back a statement, promise, or belief
Example
The newspaper issued a retraction of the false report.
El periódico emitió una retractación del informe falso.
B2 noun /rɪˈstrɪk.ʃən/

Restriction

restricción; limitación; control
Meaning
a limiting condition or measure; the limitation or control of someone or something
Example
There are strict restrictions on smoking in public places.
Hay estrictas restricciones sobre fumar en lugares públicos.
C1 noun /ˈrəʊ.bɒt əˈsɪs.tɪd prəˈsiː.dʒərz/

robot-assisted procedures

procedimientos asistidos por robot
Meaning
Medical operations performed with the help of robotic systems to enhance precision and control.
Example
Robot-assisted procedures reduce human error.
Los procedimientos asistidos por robot reducen el error humano.