radiation
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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 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.
B2 noun, verb, adjective /ræŋk/

rank

rango
Meaning
A position in a hierarchy; to place in order according to importance or quality.
Example
She quickly rose to a senior rank in the company.
Ella rápidamente ascendió a un rango superior en la empresa.
C2 adjective /ˈræŋ.kər.əs/

rancorous

rencoroso
Meaning
Characterized by bitterness or resentment.
Example
Their rancorous debate lasted for hours.
Su rencoroso debate duró horas.
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.
A1 adverb /ˈriː.ə.li/

Really

realmente; verdaderamente; mucho
Meaning
actually; truly; very much
Example
I really enjoyed the concert last night.
Realmente disfruté el concierto 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.
B1 verb /rɪˈdʒekt/

reject

rechazar
Meaning
to refuse to accept or consider something
Example
The committee decided to reject the proposal.
El comité decidió rechazar la propuesta.
B1 adjective /ˌriːəˈlɪstɪk/

realistic

realista
Meaning
having or showing a sensible and practical idea of what can be achieved or expected
Example
She gave a realistic estimate of the project's cost.
Ella dio una estimación realista del costo del proyecto.
C1 verb /ˌriːɪnˈsteɪt/

reinstate

reinstaurar
Meaning
To restore someone or something to their former position or condition.
Example
The company decided to reinstate the suspended employee.
La empresa decidió reinstaurar al empleado suspendido.
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.
C1 noun ˌrev.əˈluː.ʃən.ər.i ɪˈnɪʃ.ə.tɪv

revolutionary initiative

iniciativa revolucionaria
Meaning
A groundbreaking action or plan that brings about significant change or transformation.
Example
The revolutionary initiative promotes sustainable energy.
La iniciativa revolucionaria promueve la energía sostenible.
C1 noun /rɪˈbʌtəl/

rebuttal

refutación
Meaning
a statement or argument made to oppose or disprove another
Example
Her rebuttal was clear and convincing.
Su refutación fue clara y convincente.
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.
A2 noun /ˈriːdər/

reader

lector
Meaning
a person who reads or who is capable of reading
Example
She is a fast reader, finishing books in a day.
Ella es una lectora rápida, termina libros en un día.
B2 adjective /ˈrɒt.ən/

Rotten

podrido; malo
Meaning
decayed; spoiled; bad
Example
The apple is rotten and should be thrown away.
La manzana está podrida y debe ser tirada.
B2 verb /rɪˈkɔːl/

recall

recordar
Meaning
to bring (a memory, fact, or situation) back into one's mind
Example
I can't recall the last time we met.
No puedo recordar la última vez que nos encontramos.
C2 noun /ˈriːdʒənt/

regent

regente
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.
El príncipe actuó como regente hasta que el rey alcanzó la mayoría de edad.
C1 verb /rɪˈpjuː.di.eɪt/

repudiate

repudiar
Meaning
to refuse to accept, recognize, or support something
Example
He repudiated the claim that he was involved in the scandal.
Él repudió la afirmación de que estuvo involucrado en el escándalo.
C1 noun /rɪˌsɛptɪˈvɪti/

receptivity

receptividad
Meaning
The ability or willingness to receive something, especially signals or stimuli.
Example
Her receptivity to new ideas helped improve the project.
Su receptividad a nuevas ideas ayudó a mejorar el proyecto.
C1 noun /ˌriː.pəˈkʌʃ.ən/

repercussion

repercusión
Meaning
An unintended consequence occurring some time after an event or action.
Example
The economic crisis had severe repercussions on global trade.
La crisis económica tuvo severas repercusiones en el comercio global.
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.
B1 noun /ruːt/

Root

raíz; origen; base; causa
Meaning
the part of a plant that grows underground; the basic cause, source, or origin of something
Example
We need to find the root of this problem to solve it permanently.
Necesitamos encontrar la raíz de este problema para resolverlo permanentemente.
B2 noun /reɪk/

Rake

rastrillo
Meaning
a garden tool with a long handle and prongs for gathering leaves; to gather with a rake
Example
He used a rake to gather the fallen autumn leaves.
Él usó un rastrillo para recoger las hojas caídas de otoño.
C2 adjective /ˈreə.rɪ.faɪd/

rarefied

refinado
Meaning
Of high moral, intellectual, or cultural value; distant from ordinary life.
Example
He works in the rarefied world of classical music.
Él trabaja en el mundo refinado de la música clásica.
B1 noun /rɪˈsɔːrs/

resource

recurso
Meaning
A supply of materials, money, or assets that can be used when needed.
Example
Water is a vital natural resource.
El agua es un recurso natural vital.
B1 noun ˌrekəɡˈnɪʃn

recognition

reconocimiento
Meaning
Acknowledgment of the existence, validity, or legality of something; appreciation or acclaim for an achievement, service, or ability.
Example
He earned recognition after years of struggle.
Él ganó reconocimiento después de años de lucha.
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.
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.
C1 noun /ˈroʊdənt/

rodent

roedor
Meaning
a small mammal such as a mouse, rat, or squirrel, characterized by constantly growing incisors
Example
The farmer set traps to catch the rodents in his barn.
El granjero puso trampas para atrapar los roedores en su granero.
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.
C1 adjective /ˈreɡ.jʊ.lə.tər.i/

Regulatory

regulatorio
Meaning
Having the power to control or govern something through rules and regulations.
Example
The government enforces regulatory policies for financial stability.
El gobierno aplica políticas regulatorias para la estabilidad financiera.
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.
B1 noun /ˈriː.dʒən/

Region

región; área; zona
Meaning
a particular area or part of a country or the world
Example
This region is famous for its wine production.
Esta región es famosa por su producción de vino.
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.
B1 noun raɪts

rights

derechos
Meaning
A moral or legal entitlement to have or obtain something or to act in a certain way.
Example
The rights of people were prioritized.
Los derechos de las personas fueron priorizados.
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.
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.
C1 adjective, noun /rɪˈsiːvəbl/

receivable

cobrable
Meaning
Money that is owed to a company and is expected to be paid.
Example
The company's receivables increased significantly this quarter.
Los cobros de la empresa aumentaron significativamente este trimestre.
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 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.
C2 noun /ˌriːkruːˈdɛsəns/

recrudescence

recrudecimiento
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.
Los funcionarios de salud advirtieron sobre un brote de sarampión en varios distritos.
C2 verb /ˈreə.rɪ.faɪ/

rarefy

diluir, refinar
Meaning
To make something less dense or more refined.
Example
The air rarefies as you climb higher into the mountains.
El aire se diluye a medida que subes más alto en las montañas.
B2 noun /rɪm/

rim

borde
Meaning
the outer edge or border of a circular object
Example
The coffee cup had a chip on its rim.
La taza de café tenía una astilla en su borde.
A2 noun /ˈriː.zənz/

reasons

razones
Meaning
Causes, explanations, or justifications for an action or event.
Example
Reasons for pollution need addressing urgently.
Las razones de la contaminación deben abordarse urgentemente.
B1 verb /rɪˈtɜrnɪŋ/

returning

regreso
Meaning
Coming or going back to a place or person.
Example
The group is returning to the port on December 25th.
El grupo está regresando al puerto el 25 de diciembre.
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 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.
B1 noun rɪˈflɛkʃən

reflection

reflexión
Meaning
Serious thought or consideration about something.
Example
The reflection of the past filled his heart with sadness.
La reflexión del pasado llenó su corazón de tristeza.
C2 verb /ˈrʌmpəl/

rumple

arrugar
Meaning
to make something untidy or wrinkled by creasing or crumpling
Example
She accidentally rumpled her dress while packing.
Ella accidentalmente arrugó su vestido mientras empacaba.
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.
C2 noun /rɪˈkɒɡnɪzəns/

recognizance

compromiso legal
Meaning
A legal obligation or bond entered into before a court, especially to ensure future appearance.
Example
He was released on his own recognizance.
Fue liberado bajo su propio compromiso legal.
C1 verb /reɪz/

raze

demoler
Meaning
To completely destroy or demolish something, especially a building.
Example
The old factory was razed to make way for new apartments.
La vieja fábrica fue demolida para dar paso a nuevos apartamentos.
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 verb /riˈɪtəreɪt/

reiterate

reiterar
Meaning
To say something again or repeatedly for emphasis or clarity.
Example
The teacher reiterated the importance of honesty.
El maestro reiteró la importancia de la honestidad.
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.
B2 verb /rɪˈtriːv/

retrieve

recuperar
Meaning
to get something back that was lost or taken; to recover
Example
She managed to retrieve her lost phone from the taxi.
Ella logró recuperar su teléfono perdido del taxi.
B2 verb /rɪˈzɜːv/

reserve

reservar
Meaning
to keep something for future use; to book in advance
Example
I want to reserve a table for dinner.
Quiero reservar una mesa para la cena.
C2 verb /rɛtʃ/

retch

felicidad
Meaning
to make the sound and movement of vomiting without bringing anything up
Example
The smell of spoiled food made him retch violently.
Ella no pudo ocultar su felicidad cuando recibió el premio.
B2 adjective /rɪˈnjuː.ə.bəl/

renewable

renovable
Meaning
Able to be renewed or replaced naturally; not depleted when used.
Example
Renewable resources minimize environmental damage.
Los recursos renovables minimizan los daños al medio ambiente.
C1 noun /ˌrɛfəˈrɛndəm/

referendum

referéndum
Meaning
a general vote by the population on a single political issue
Example
The government held a referendum on the new constitution.
El gobierno celebró un referéndum sobre la nueva constitución.
C1 verb /ˌriːˈkɒn.stɪ.tʃuːt/

reconstitute

reconstituir
Meaning
to restore something to its original form or state; to reassemble
Example
The group was reconstituted after the leader returned.
El grupo fue reconstituido después de que el líder regresó.
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 /rɪˈtreɪs/

retrace

volver sobre un camino o ruta, recordar y repetir pasos anteriores
Meaning
to go back over a path or route; to recall and repeat steps taken earlier
Example
She retraced her steps to find her lost keys.
Ella volvió sobre sus pasos para encontrar sus llaves perdidas.
C2 noun /rɪˈsɪʒən/

rescission

rescisión
Meaning
the cancellation or annulment of a law, contract, or agreement
Example
The rescission of the contract left both parties disappointed.
La rescisión del contrato dejó a ambas partes decepcionadas.
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 /ˈræŋ.kər/

rancor

rencor
Meaning
A feeling of deep and bitter anger or resentment.
Example
There was a rancor between the two rivals that never faded.
Hubo un rencor entre los dos rivales que nunca se desvaneció.
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.
C1 adjective /rɪˈzɪdjuəl/

residual

residual
Meaning
Remaining after the greater part has gone.
Example
The patient experienced residual pain after the surgery.
El paciente experimentó dolor residual después de la cirugía.
B2 verb /rɪˈkɜːr/

recur

repetir
Meaning
to happen again, especially repeatedly or at regular intervals
Example
The headache tends to recur every few weeks.
El dolor de cabeza tiende a recurrir cada pocas semanas.
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.
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 /ˈræpsədi/

rhapsody

canción exaltada/elogio
Meaning
an expression of great enthusiasm or an epic musical composition
Example
The singer’s performance was a rhapsody of emotions.
La actuación del cantante fue una rapsodia de emociones.
C2 noun /ˌræproʊʃˈmɑːn/

rapprochement

restablecimiento de relaciones
Meaning
The establishment or resumption of harmonious relations.
Example
The two countries signed an agreement that marked a new rapprochement.
Los dos países firmaron un acuerdo que marcó un nuevo restablecimiento de relaciones.
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.
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.
C2 verb /ruː/

rue

lamentar
Meaning
To feel regret or sorrow about something.
Example
She will rue the day she trusted him.
Ella lamentará el día que le dio su confianza.
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.
C1 adjective /ˈræɡ.ɪd/

Ragged

desgarrado; roto; raído
Meaning
torn; tattered; frayed; shabby
Example
The homeless man wore ragged clothes.
El hombre sin hogar llevaba ropa desgarrada.
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.
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.
C2 noun /ˈreɪləri/

raillery

burlas amistosas
Meaning
good-humored teasing or joking
Example
Their friendship was full of light-hearted raillery.
Su amistad estaba llena de bromas ligeras.
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 /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.
C1 noun, verb /raʊt/

rout

derrota
Meaning
A decisive defeat; to defeat completely.
Example
The army routed the enemy forces in the battle.
El ejército derrotó completamente a las fuerzas enemigas en la batalla.
B1 verb /ˈreskjuː/

rescue

rescatar
Meaning
to save someone or something from danger or harm
Example
The firefighters rescued the cat from the tree.
Los bomberos rescataron al gato del árbol.
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.
B2 noun /ˈrɛlɪvəns/

relevance

relevancia
Meaning
the quality or state of being closely connected or appropriate
Example
The relevance of the information was clear to everyone.
La relevancia de la información era clara para todos.
C2 noun /ˈræbəl/

Rabble

turba
Meaning
a disorderly crowd; the common people regarded as socially inferior
Example
The politician dismissed the protesters as mere rabble.
El político desestimó a los manifestantes como una simple turba.
C2 adjective /ˈruːnɪk/

runic

relacionado con runas
Meaning
relating to or consisting of runes; mysterious or magical
Example
The old stone had strange runic carvings on it.
La antigua piedra tenía extrañas tallas rúnicas.
B2 noun, verb /rɪər/

rear

parte trasera / criar
Meaning
the back part of something; to bring up or raise children or animals
Example
The mother cat reared her kittens in a quiet corner.
La madre gata crió a sus gatitos en una esquina tranquila.
B1 noun /rɪˈpɔːrtər/

reporter

reportero
Meaning
a person who reports news or information
Example
The reporter interviewed several people at the scene.
El reportero entrevistó a varias personas en la escena.
C1 adjective /ˈrævənəs/

ravenous

hambriento
Meaning
Extremely hungry; famished.
Example
After the long hike, she was ravenous and ate quickly.
Después de la larga caminata, ella estaba famélica y comió rápidamente.
B2 noun /ˈraɪfəl/

Rifle

rifle
Meaning
a gun with a long barrel that is fired from the shoulder
Example
The soldier carried a rifle during the mission.
El soldado llevaba un rifle durante la misión.
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.
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.
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 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.
C1 adjective /rɪˈdʌn.dənt/

redundant

innecesario
Meaning
Not or no longer needed or useful; superfluous.
Example
The report contained redundant information.
El informe contenía información innecesaria.
C2 noun /ˌræʃioʊsɪˈneɪʃən/

ratiocination

razonamiento
Meaning
the process of reasoning or logical thinking
Example
His ratiocination impressed the judges during the debate.
Su razonamiento impresionó a los jueces durante el debate.
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.
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 /rɪˈkæl.sɪ.trənt/

recalcitrant

recalcitrante, terco, desobediente
Meaning
Having an obstinately uncooperative attitude toward authority or discipline.
Example
The recalcitrant student refused to follow rules.
El estudiante recalcitrante se negó a seguir las reglas.
C1 noun /ˌrek.ənˌsɪl.iˈeɪ.ʃən/

reconciliation

reconciliación
Meaning
The restoration of friendly relations; the action of making one view or belief compatible with another.
Example
The peace treaty was a major step toward reconciliation.
El tratado de paz fue un paso importante hacia la reconciliación.
C1 noun /ˈraɪtʃəsnəs/

righteousness

justicia
Meaning
the quality of being morally right or justifiable
Example
His life was dedicated to righteousness and truth.
Su vida estuvo dedicada a la justicia y la verdad.
B1 noun /ˈrɛntəl/

rental

alquiler
Meaning
an arrangement in which something is rented, or the amount paid for renting
Example
The car rental was more expensive than we expected.
El alquiler del coche fue más caro de lo que esperábamos.
B2 adjective /rɪˈlʌktənt/

Reluctant

reacio; rehusado; vacilante a hacer algo;
Meaning
unwilling; hesitant; disinclined to do something;
Example
She was reluctant to share her personal information.
Ella estaba reacia a compartir su información personal.
C1 verb /ˌriːˈtʌtʃ/

retouch

retocar
Meaning
To improve or repair a picture, photograph, or image by making small changes.
Example
The photographer retouched the image to remove blemishes.
El fotógrafo retocó la imagen para eliminar manchas.
A2 verb riˈsaɪklɪŋ

recycling

reciclaje
Meaning
The process of converting waste materials into new materials and objects to prevent waste.
Example
Recycling plastic helps in reducing waste.
El reciclaje de plástico ayuda a reducir los residuos.
C1 adjective /rɪˈmiːdiəl/

Remedial

correctivo; remedial; curativo;
Meaning
intended as a remedy; corrective; providing a cure;
Example
The students need remedial classes to improve their math skills.
Los estudiantes necesitan clases remediales para mejorar sus habilidades en matemáticas.
B1 verb /rɪˈɡɑːrd/

regard

considerar
Meaning
to consider or think of in a particular way; to look at
Example
She regards him as her best friend.
Ella lo considera su mejor amigo.
C2 adjective /rɪˈfʌldʒənt/

refulgent

resplandeciente
Meaning
Shining brightly; radiant.
Example
The refulgent sun lit up the entire valley.
El sol resplandeciente iluminó todo el valle.
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.
B1 noun /reɪ/

ray

rayo
Meaning
a narrow beam of light, heat, or radiation
Example
A ray of sunlight broke through the clouds.
Un rayo de luz del sol rompió a través de las nubes.
C2 adjective /rɪˈdjuːsəbl̩/

reducible

reducible
Meaning
capable of being simplified, lessened, or made smaller
Example
The problem is complex but reducible to a few basic principles.
El problema es complejo pero reducible a unos pocos principios básicos.
C1 adjective /rɪˈvoʊltɪŋ/

revolting

repugnante
Meaning
extremely unpleasant or disgusting
Example
The smell of the garbage was revolting.
El olor de la basura era repugnante.
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 adjective /ˈruːθ.ləs/

Ruthless

despiadado; cruel; sin compasión
Meaning
showing no pity or compassion; cruel; merciless
Example
The ruthless dictator showed no mercy to his enemies.
El dictador despiadado no mostró misericordia a sus enemigos.
C1 verb /ˌriːəˈdʒʌst/

readjust

reajustar
Meaning
To change or move something again in order to achieve a better fit, condition, or balance.
Example
He readjusted the chair to make it more comfortable.
Él reajustó la silla para que fuera más cómoda.
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.
B2 adjective /ˈrɪdən/

ridden

atravesado
Meaning
Full of or dominated by something unpleasant.
Example
The country was ridden with corruption.
El país estaba atravesado por la corrupción.