revolutionary breakthrough
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C1 noun /ˌrev.əˈluː.ʃən.ər.i ˈbreɪk.θruː/

revolutionary breakthrough

descubrimiento revolucionario
Meaning
A sudden, dramatic, and important discovery or development that changes everything.
Example
Robotic surgery is a revolutionary breakthrough in healthcare.
La cirugía robótica es un descubrimiento revolucionario en la atención sanitaria.
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.
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 verb /rɪˈdʒuː.vɪ.neɪt/

rejuvenate

rejuvenecer
Meaning
To make or feel young, healthy, or energetic again.
Example
A vacation can rejuvenate the mind and body.
unas vacaciones pueden rejuvenecer la mente y el cuerpo.
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.
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.
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 /ˈrɛtrəsˌpɛkt/

retrospect

retroceso
Meaning
the act of looking back on or reviewing past events
Example
In retrospect, the decision seemed unwise.
En retrospectiva, la decisión parecía imprudente.
B2 noun /ˈruːstər/

rooster

gallo
Meaning
A male domestic chicken, especially one that crows.
Example
The rooster crowed at dawn, waking up the whole village.
El gallo cantó al amanecer, despertando a toda la aldea.
C1 noun ˈrəʊvə

rover

rover
Meaning
A vehicle for driving over rough terrain, especially one driven by remote control over extraterrestrial terrain.
Example
The rover landed on Mars to begin its exploration.
El rover aterrizó en Marte para comenzar su exploración.
B1 noun rɔː mətɪˈrɪəlz

raw materials

materias primas
Meaning
The basic material from which a product is made.
Example
The factory imports raw materials for production.
La fábrica importa materias primas para la producción.
C2 noun /ˌrep.ɑːˈtiː/

Repartee

repartee
Meaning
conversation or speech characterized by quick, witty comments or replies
Example
The dinner party was filled with brilliant repartee between the guests.
La cena estuvo llena de brillantes réplicas entre los invitados.
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.
B2 verb /ˈreɡjəleɪt/

regulate

regular
Meaning
to control or maintain according to rules or laws
Example
The government regulates food safety.
El gobierno regula la seguridad alimentaria.
B2 verb /rɪˈtriːt/

retreat

retirarse
Meaning
to move back or withdraw from a position or situation
Example
The soldiers had to retreat after losing the battle.
Los soldados tuvieron que retirarse después de perder la batalla.
C1 adjective /rɪˈpen.tənt/

Repentant

arrepentido; lamentoso; contrito
Meaning
feeling or expressing sincere regret and remorse; sorry for one's actions
Example
The repentant thief returned the stolen money.
El ladrón arrepentido devolvió el dinero robado.
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.
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.
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.
C2 adjective /ˌrɛpərˈtɔːriəl/

repertorial

repertorial
Meaning
Relating to or characteristic of a repertoire, especially in journalism or performance contexts.
Example
The journalist's repertorial style captured every detail of the unfolding story.
El estilo repertorial del periodista capturó cada detalle de la historia en desarrollo.
C1 verb /riːˈkæptʃər/

recapture

recapturar
Meaning
To take back or regain possession of something.
Example
The army managed to recapture the lost territory.
El ejército logró recapturar el territorio perdido.
C2 adjective /ˈroʊziət/

roseate

rosado, optimista
Meaning
Having a pink color; optimistic or idealistic.
Example
She looked at the future with roseate optimism.
Ella miró al futuro con un optimismo rosado.
C1 adjective /ˈraʊzɪŋ/

rousing

emocionante
Meaning
Exciting, inspiring, or stirring.
Example
The speaker delivered a rousing speech that moved the audience.
El orador dio un discurso emocionante que movió a la audiencia.
A2 noun /ˈruːlər/

ruler

gobernante; regla
Meaning
A person who governs or controls a country; a straight-edged tool used for measuring or drawing lines
Example
The ruler drew a straight line on the paper while the king was a powerful ruler of his kingdom.
El ruler dibujó una línea recta en el papel mientras el rey era un poderoso ruler de su reino.
B1 adjective /rɪˈtaɪərd/

Retired

jubilado
Meaning
having left one's job and ceased to work; withdrawn from activity
Example
My retired grandfather enjoys gardening in his free time.
Mi abuelo jubilado disfruta de la jardinería en su tiempo libre.
B2 noun /rɛlm/

realm

reino, dominio, ámbito, esfera
Meaning
A kingdom or domain; a field or area of activity or interest.
Example
He is well known in the realm of science.
Él es bien conocido en el ámbito de la ciencia.
C1 adjective /ˈrɪkɪti/

rickety

deteriorado
Meaning
Poorly made and likely to collapse; shaky.
Example
They crossed a rickety wooden bridge over the river.
Cruzaron un puente de madera deteriorado sobre el río.
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.
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.
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 verb /rɪˈzaʊnd/

resound

resonar
Meaning
To fill a place with sound; to be celebrated or talked about widely.
Example
The hall resounded with applause.
El salón resonó con aplausos.
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.
B1 adjective /rɔː/

Raw

crudo; no procesado; en su estado natural; inexperto
Meaning
uncooked; not processed; in natural state; inexperienced
Example
The chef prefers to use raw vegetables in his salads.
El chef prefiere usar verduras crudas en sus ensaladas.
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.
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.
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.
A1 adjective /ˈreɪ.di.əʊ/

radio

radio
Meaning
Relating to radio waves or broadcasting.
Example
FAST is the largest radio telescope in the world.
FAST es el telescopio de radio más grande del mundo.
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.
A2 noun /rɪˈzʌlt/

result

resultado
Meaning
a consequence, effect, or outcome of something
Example
The result of the test was excellent.
El resultado de la prueba fue excelente.
B2 noun /ˌrɛprɪzɛnˈteɪʃən/

representation

representación
Meaning
the action of speaking or acting on behalf of someone or something
Example
Her representation of the team was impeccable.
Su representación del equipo fue impecable.
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.
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.
B2 adjective /ˈreɪsɪst/

racist

racista
Meaning
showing or feeling discrimination or prejudice against people of other races
Example
He was accused of making racist comments.
Se le acusó de hacer comentarios racistas.
C1 adjective /raɪf/

rife

generalizado
Meaning
widespread or common, often in a negative sense
Example
Corruption was rife in the old government system.
La corrupción era generalizada en el antiguo sistema gubernamental.
A2 noun /rent/

Rent

felicidad
Meaning
a payment made periodically by a tenant to a landlord for use of property
Example
The monthly rent for this apartment is quite affordable.
Ella no pudo ocultar su felicidad cuando recibió el premio.
C1 adjective /rɪˈtæl.i.ə.tɔːr.i/

retaliatory

represaliatorio
Meaning
Taking action in response to another's action, characterized as punitive, revengeful, or counteractive.
Example
The country imposed retaliatory tariffs in response to trade sanctions.
El país impuso aranceles represaliatorios en respuesta a las sanciones comerciales.
C1 verb /raɪl/

rile

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

remains

restos
Meaning
the parts, pieces, or substances that are left after the rest has been used or removed
Example
The remains of the meal were left on the table.
Los restos de la comida quedaron en la mesa.
C1 adjective /ˌruː.dɪˈmen.tər.i/

Rudimentary

básico; elemental; subdesarrollado; en la etapa más temprana del desarrollo
Meaning
basic; elementary; undeveloped; in the earliest stage of development
Example
She has only rudimentary knowledge of French.
Ella solo tiene conocimiento rudimentario del francés.
B1 noun rɪˈzɪs.təns

resistance

resistencia
Meaning
The refusal to accept or comply with something; the attempt to prevent something by action or argument.
Example
The resistance fought bravely against colonial forces.
La resistencia luchó valientemente contra las fuerzas coloniales.
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.
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 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 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 adjective /ˈrʊr.əl/

Rural

rural
Meaning
relating to the countryside; characteristic of farming or country life
Example
She grew up in a rural area far from the city.
Ella creció en una zona rural, lejos de la ciudad.
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.
C1 verb /rɪˈnaʊns/

renounce

renunciar
Meaning
to formally declare rejection of something, such as a claim, belief, or way of life
Example
She renounced her citizenship to move abroad permanently.
Ella renunció a su ciudadanía para mudarse al extranjero permanentemente.
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.
C1 noun /rɪˈkɜr.əns/

Recurrence

recurrencia
Meaning
the fact of something happening again; an instance of something happening again
Example
The doctor was concerned about the recurrence of the patient's symptoms.
El doctor estaba preocupado por la recurrencia de los síntomas del paciente.
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 verb /rɪˈfreɪn/

refrain

abstenerse
Meaning
To hold oneself back from doing something.
Example
Please refrain from smoking in this area.
Por favor absténgase de fumar en esta área.
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.
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.
B1 noun /ˈrɛzɪdəns/

residence

residencia
Meaning
a place where someone lives; a home or dwelling
Example
He recently moved to a new residence near the city center.
Recientemente se mudó a una nueva residencia cerca del centro de la ciudad.
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 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.
C1 verb /rɪˈdiːm/

redeem

redimir
Meaning
to compensate for faults or mistakes; to exchange something for value
Example
He managed to redeem his reputation after the scandal.
Él logró redimir su reputación después del escándalo.
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.
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.
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.
B2 noun /rɪˈmaɪndər/

reminder

recordatorio
Meaning
something that helps you remember a fact, event, or action that you need to do or recall
Example
He set a reminder to call his mother on her birthday.
Él configuró un recordatorio para llamar a su madre en su cumpleaños.
C2 adjective /ˈreɪ.moʊs/

ramose

ramificado
Meaning
having many branches.
Example
The ramose tree shaded the entire garden.
El árbol ramificado dio sombra a todo el jardín.
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 adverb /ˈrʌfli/

Roughly

aproximadamente; de manera violenta o dura
Meaning
approximately; in a harsh or violent way
Example
The project will take roughly three months to complete.
El proyecto tomará aproximadamente tres meses para completarse.
B2 noun /ˈreɪʃoʊ/

ratio

proporción
Meaning
a relationship between two numbers showing how many times the first number contains the second
Example
The ratio of boys to girls in the class is 2:1.
La proporción de niños a niñas en la clase es 2:1.
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 verb /rɪˈmjuːnəreɪt/

remunerate

remunerar
Meaning
To pay someone for services or work done.
Example
The company will remunerate employees fairly for their overtime.
La empresa remunerará a los empleados de manera justa por su tiempo extra.
B2 verb /rɪˈfaɪn/

refine

refinar
Meaning
to improve by making small changes; to purify
Example
The chef refines the recipe to perfection.
El chef refina la receta a la perfección.
B2 verb /rɪˈzɛmbəl/

resemble

parecerse a
Meaning
to look like or be similar to something or someone
Example
She resembles her mother in both appearance and mannerisms.
Ella se parece a su madre tanto en su apariencia como en sus gestos.
B2 noun /rɪˈfjuː.zəl/

Refusal

rechazo; negativa
Meaning
the act of saying no to something or not accepting something
Example
His refusal to cooperate made the project more difficult.
Su rechazo a cooperar hizo que el proyecto fuera más difícil.
C1 noun /riːk/

Reek

oler mal; dar una fuerte impresión de algo desagradable o no deseado
Meaning
to have a very unpleasant smell; to give a strong impression of something unpleasant or undesirable
Example
The garbage can reeks of rotten food.
El cubo de basura huele a comida podrida.
B1 noun /ˌrɛp.jʊˈteɪ.ʃən/

reputation

reputación, fama
Meaning
The opinion generally held about someone or something; fame or prestige.
Example
A good reputation is essential for business success.
Una buena reputación es esencial para el éxito empresarial.
C1 verb /ˌriːˈkæl.ɪ.breɪt/

recalibrate

recalibrar, ajustar nuevamente
Meaning
To calibrate again or differently; to adjust or correct something based on new information or changed circumstances.
Example
The company had to recalibrate its strategies to adapt to the market.
La empresa tuvo que recalibrar sus estrategias para adaptarse al mercado.
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.
B1 noun /ˈrɪðəm/

rhythm

ritmo
Meaning
a strong, regular, repeated pattern of movement or sound
Example
The rhythm of the music made everyone want to dance.
El ritmo de la música hizo que todos quisieran bailar.
B2 noun /rɪˈsɪp.i.ənt/

Recipient

receptor
Meaning
a person who receives something
Example
She was the recipient of the prestigious award.
Ella fue la receptora del premio prestigioso.
C1 noun /ˈrɛt.ər.ɪk/

rhetoric

el arte de hablar o escribir de manera efectiva o persuasiva
Meaning
The art of effective or persuasive speaking or writing; skillful use of language to influence others.
Example
Political leaders often use rhetoric to influence people.
Los líderes políticos a menudo utilizan la retórica para influir en la gente.
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.
C2 noun /ˈrɛdʒɪsaɪd/

regicide

regicidio
Meaning
the act of killing a king
Example
The conspirators were executed for committing regicide.
Los conspiradores fueron ejecutados por cometer regicidio.
C1 noun /ˈrɛvərəns/

reverence

reverencia
Meaning
deep respect for someone or something
Example
The students showed reverence to their teacher.
Los estudiantes mostraron reverencia hacia su maestro.
A1 verb /raɪd/

ride

montar/montar en
Meaning
to travel on or in a vehicle; to sit on and control a horse
Example
She likes to ride her bicycle to work.
A ella le gusta montar su bicicleta al trabajo.
C1 noun /rɪˈmɔːrs/

Remorse

remordimiento
Meaning
deep regret or guilt for a wrong committed; bitter regret for something done
Example
He felt deep remorse for his actions.
Él sintió un profundo remordimiento por sus acciones.
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.
A1 verb /riːd/

read

leer
Meaning
to look at written words and understand their meaning
Example
I read books before going to bed.
Yo leo libros antes de acostarme.
B2 verb /ˌriːəˈʃʊr/

reassure

tranquilizar
Meaning
to say or do something to remove someone's doubts or fears
Example
The teacher reassured the students before the exam.
El maestro tranquilizó a los estudiantes antes del examen.
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.
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.
C1 verb /rɪˈsɪprəˌkeɪt/

reciprocate

reciprocidad
Meaning
To respond to an action or gesture by making a corresponding one.
Example
She smiled at him, and he reciprocated with a warm hug.
Ella sonrió, y él reciprocó con un abrazo cálido.
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 noun ˈrez.ɪ.djuː

residue

residuo
Meaning
A small amount of something that remains after the main part has gone or been removed.
Example
Soap residue affects appliance efficiency.
El residuo de jabón afecta la eficiencia de los aparatos.
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.
C1 verb /ˈrɛplɪkeɪt/

replicate

replicar
Meaning
to copy, reproduce, or duplicate something exactly
Example
The scientist tried to replicate the experiment for accuracy.
El científico intentó replicar el experimento para mayor precisión.
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.
B1 noun /rɪˈtaɪə.mənt/

Retirement

jubilación
Meaning
the action or fact of leaving one's job and ceasing to work; the period of life after leaving work
Example
He is planning his retirement after 40 years of service.
Está planeando su jubilación después de 40 años de servicio.
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 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.
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.
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.
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.
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.
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.
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 noun ˌreɪ.di.oʊ.ækˈtɪv.ə.ti

radioactivity

radiactividad
Meaning
The emission of ionizing radiation or particles caused by the spontaneous disintegration of atomic nuclei.
Example
Radioactivity is used in medical treatments like cancer therapy.
La radioactividad se usa en tratamientos médicos como la terapia del cáncer.
A2 noun /reɪt/

rate

tarifa
Meaning
the cost or price of something, or the amount at which something happens
Example
The rate of inflation is increasing every year.
La tasa de inflación está aumentando cada año.
C2 noun /rɪˈfræk.tər/

refractor

refractor
Meaning
A type of telescope that uses lenses to focus light.
Example
Refractor telescopes use lenses to focus light.
Los telescopios refractores usan lentes para enfocar la luz.
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 /red ˌəʊ.liˈæn.dər/

Red oleander

oleandro rojo
Meaning
a poisonous flowering shrub with bright red or pink flowers
Example
The red oleander blooms throughout the summer months.
El oleandro rojo florece durante los meses de verano.
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 verb /rɪˈkɔɪl/

recoil

retroceder
Meaning
To suddenly spring back in fear, horror, or from force such as a gun's kickback.
Example
She recoiled at the sight of the snake.
Ella se encogió al ver la serpiente.