remaining
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B1 adjective /rɪˈmeɪnɪŋ/

remaining

restante
Meaning
still existing or left after others are gone or dealt with
Example
There were only a few remaining tickets for the concert.
Quedaban solo unos pocos boletos para el concierto.
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.
C1 noun /rɪˈliːf treɪn/

Relief Train

tren de alivio
Meaning
a train that carries emergency supplies and aid to disaster-affected areas
Example
The relief train arrived with food and medical supplies for the flood victims.
el tren de alivio llegó con alimentos y suministros médicos para las víctimas de la inundación.
A2 noun /ˈreɪl.weɪ/

Railway

ferrocarril
Meaning
a track made of steel rails along which trains run; a system of tracks with trains, stations, and other facilities
Example
The railway connects major cities across the country.
El ferrocarril conecta las principales ciudades del país.
A2 adjective /ˈreɡ.jə.lər/

Regular

regular
Meaning
happening at fixed intervals; consistent; normal; frequent
Example
She goes for regular exercise every morning at 6 AM.
Ella hace ejercicio regularmente todas las mañanas a las 6.
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.
C1 adjective rɪˈsɛʃ.ən.er.i

recessionary

recesivo
Meaning
Relating to or characterized by economic recession.
Example
Governments introduce policies to counter recessionary effects.
Los gobiernos introducen políticas para contrarrestar los efectos recesivos.
C1 adjective /rɪˈpʌɡ.nənt/

Repugnant

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

Rebellion

rebelión
Meaning
an act of armed resistance to an established government or leader
Example
The rebellion against the king lasted for three years.
La rebelión contra el rey duró tres años.
B2 noun ˌriːfɔːˈreɪʃən

reforestation

reforestación
Meaning
The natural or intentional restocking of existing forests and woodlands that have been depleted.
Example
Reforestation efforts are crucial to restoring ecosystems.
Los esfuerzos de reforestación son cruciales para restaurar los ecosistemas.
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.
C2 noun /ˌrɛprɪˈhɛnʃən/

reprehension

reprensión
Meaning
The act of rebuking or criticizing severely.
Example
The teacher’s reprehension of the student’s behavior was justified.
La reprensión del comportamiento del estudiante por parte del profesor fue justificada.
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.
C1 noun /rɪˌmjuː.nəˈreɪ.ʃən/

Remuneration

remuneración; compensación; recompensa
Meaning
money paid for work or services; compensation or reward
Example
The job offers excellent remuneration and benefits.
El trabajo ofrece una excelente remuneración y beneficios.
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.
C1 adjective /ˈrʌs.tɪk/

Rustic

sencillo y no sofisticado; relacionado con áreas rurales
Meaning
simple and unsophisticated; relating to rural areas
Example
The rustic cottage had wooden beams and a thatched roof.
La cabaña rústica tenía vigas de madera y un techo de paja.
A2 verb /rɪŋ/

ring

sonar
Meaning
to make a clear sound like a bell; to call by telephone
Example
The bell rings every hour.
La campana suena cada hora.
A1 adjective /ˈrɛd.i/

ready

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

rejuvenation

rejuvenecimiento
Meaning
The process of restoring something to a former better state, especially referring to renewing soil fertility or revitalizing agricultural land through various restoration practices.
Example
Rejuvenation of soil is necessary for sustainable agriculture.
El rejuvenecimiento del suelo es necesario para la agricultura sostenible.
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.
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.
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.
C1 verb /raɪl/

rile

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

rafter

viga
Meaning
One of the sloping beams that supports a roof.
Example
The old barn’s rafters were exposed.
Las vigas del viejo granero estaban expuestas.
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.
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 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.
A2 adjective /ˈreɪ.ni/

Rainy

lluvioso
Meaning
characterized by rain; wet from rain; having much rain
Example
It was a rainy day, so we stayed indoors.
Era un día lluvioso, así que nos quedamos adentro.
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 /rɪˈkruːt/

recruit

reclutar
Meaning
to enlist or hire people for a job, service, or membership
Example
The company is trying to recruit more software engineers.
La empresa está tratando de reclutar más ingenieros de software.
C1 noun/verb /rɪˈlæps/

relapse

recaída
Meaning
to return to a worse condition, especially after improvement; a deterioration after recovery
Example
After months of progress, he suffered a relapse.
Después de meses de progreso, sufrió una recaída.
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 /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.
B1 noun /rɪˈɡret/

Regret

arrepentimiento
Meaning
a feeling of sadness or disappointment about something that has happened or been done
Example
She felt deep regret about her harsh words.
Ella sintió un profundo arrepentimiento por sus palabras duras.
C1 adjective /ˌrɛprɪˈhɛnsəbl̩/

reprehensible

reprensible
Meaning
Deserving strong criticism or blame.
Example
His dishonest actions were truly reprehensible.
Sus acciones deshonestas fueron realmente reprensibles.
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 adjective /ˈriː.sənt/

Recent

reciente; nuevo; actual;
Meaning
happening not long ago; new; current;
Example
The recent changes in weather patterns concern scientists.
Los recientes cambios en los patrones climáticos preocupan a los científicos.
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.
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 adjective /ˈrɪtʃ.u.əl/

Ritual

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

recline

recostarse
Meaning
To lean or lie back in a relaxed position.
Example
She reclined on the sofa with a book.
Ella se recostó en el sofá con un libro.
C2 noun /ˈrɛkwiəm/

requiem

misa de réquiem
Meaning
A mass, music, or ceremony for the repose of the souls of the dead.
Example
The choir performed a requiem in memory of the late leader.
El coro realizó un réquiem en memoria del líder fallecido.
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 /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 /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 /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.
B2 noun /ˈroʊ.lɪŋ pɪn/

Rolling pin

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

Refreshing

refrescante
Meaning
making one feel energized and renewed; pleasantly new or different
Example
The cool breeze was refreshing after the hot day.
La brisa fresca fue refrescante después del día caluroso.
C1 adjective /rɪˈmoʊtɪd/

remoted

remotado
Meaning
placed at a distance; made remote
Example
The system was remoted to a secure location.
El sistema fue remotado a una ubicación segura.
C1 noun /ˌræm.ɪ.fɪˈkeɪ.ʃən/

ramification

consecuencia
Meaning
a consequence of an action or event, often complex or unwelcome.
Example
The new law has serious social ramifications.
La nueva ley tiene graves consecuencias sociales.
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.
B2 adjective /rɪˈfaɪnd/

Refined

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

redundancy

redundancia, exceso
Meaning
The state of being not or no longer needed or useful; superfluousness.
Example
The redundancy in the company's workforce led to many layoffs.
La redundancia en la fuerza laboral de la empresa condujo a muchos despidos.
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.
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.
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 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.
C1 adjective /riˈækʃəˌneri/

reactionary

reaccionario
Meaning
Opposing political or social progress or reform; extremely conservative.
Example
The group took a reactionary stance against the new policies.
El grupo adoptó una postura reaccionaria contra las nuevas políticas.
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.
B2 noun /ˈriːzənɪŋ/

reasoning

razonamiento
Meaning
the process of thinking about something in a logical way in order to form a conclusion or judgment
Example
Her reasoning for leaving was clear and logical.
Su razonamiento para irse fue claro y lógico.
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 noun /rɪˈpɔːrtɪʒ/

reportage

reportaje
Meaning
the act of reporting news or describing events in the media
Example
The magazine is known for its detailed reportage of political issues.
La revista es conocida por su detallado reportaje de temas políticos.
C1 adjective /ˈreɪ.kɪʃ/

Rakish

despreocupado
Meaning
having a dashing, jaunty, or slightly disreputable quality or appearance
Example
He wore his hat at a rakish angle that gave him a charming appearance.
Él llevaba su sombrero en un ángulo despreocupado que le daba una apariencia encantadora.
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 /rɪˈzʌmp.ʃən/

Resumption

reanudar
Meaning
the action of beginning something again after a pause or interruption
Example
The resumption of classes will be announced next week.
La reanudación de las clases será anunciada la próxima semana.
B2 verb /ˈræm.bəl/

ramble

hablar o escribir durante mucho tiempo de manera confusa o sin sentido; caminar sin un rumbo fijo por placer
Meaning
to talk or write at length in a confused or inconsequential way; to walk for pleasure without a fixed route.
Example
He rambled on about his childhood for hours.
Él habló durante horas sobre su infancia de manera confusa.
C1 noun /ˌriː.əˈdʒʌst.mənt/

readjustment

reajuste
Meaning
The act of changing or correcting something again to make it suitable or balanced.
Example
After moving to a new city, he went through a period of readjustment.
Después de mudarse a una nueva ciudad, él pasó por un periodo de reajuste.
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 verb /ˈrʌsl/

rustle

crujir
Meaning
To make a soft, light sound like leaves or paper moving.
Example
The leaves rustled gently in the evening breeze.
Las hojas crujían suavemente con la brisa de la tarde.
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 /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.
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.
B2 noun /ˈrɪk.ʃɔː/

Rickshaw

rickshaw
Meaning
a light two-wheeled passenger vehicle drawn by one or more people
Example
We took a rickshaw to reach the busy marketplace.
Tomamos un rickshaw para llegar al mercado concurrido.
C2 noun /ˈrɛlɪkwɛri/

reliquary

relicario
Meaning
a container for holy relics
Example
The ancient reliquary was decorated with gold and precious stones.
El antiguo relicario estaba decorado con oro y piedras preciosas.
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 adjective /rɪˈlaɪ.ənt/

reliant

dependiente
Meaning
depending on someone or something for support
Example
The country is too reliant on imported goods.
El país depende demasiado de los bienes importados.
C1 verb /ræsp/

rasp

hablar de forma áspera o raspar con un sonido grueso
Meaning
to speak in a rough, harsh voice or to scrape with a coarse sound
Example
He rasped out a warning before collapsing.
él raspó una advertencia antes de desmayarse.
C1 noun /ˌrætɪfɪˈkeɪʃən/

Ratification

ratificación
Meaning
the action of signing or giving formal consent to a treaty, contract, or agreement
Example
The treaty required ratification by both countries' parliaments.
El tratado requirió ratificación por los parlamentos de ambos países.
B2 noun /roʊˈteɪʃən/

Rotation

rotación; giro; rotación del eje
Meaning
the action of rotating around an axis or center; a single turn
Example
The Earth's rotation takes 24 hours to complete.
La rotación de la Tierra tarda 24 horas en completarse.
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.
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.
C2 verb /rɪˈɡeɪl/

regale

regalar
Meaning
To entertain or amuse someone with stories, food, or drink.
Example
He regaled us with stories of his travels around the world.
Nos regaló con historias de sus viajes alrededor del mundo.
B1 noun /ruːt/

route

ruta
Meaning
a way or course taken to get from one place to another
Example
The best route to the airport is through the highway.
La mejor ruta al aeropuerto es por la autopista.
C1 verb /ˈreɪdieɪt/

radiate

irradiar
Meaning
to emit energy or light; to spread out from a center
Example
The fireplace radiates warmth throughout the room.
La chimenea irradia calor por toda la habitación.
B2 verb /rɪˈzaɪd/

reside

residir
Meaning
to live or dwell in a particular place
Example
They reside in a large house near the river.
Ellos residen en una casa grande cerca del río.
B1 noun /rɪˈleɪ.ʃən/

Relation

relación; vínculo
Meaning
the way in which two or more people or things are connected; a family member
Example
They have a strong business relation that has lasted for years.
Tienen una fuerte relación comercial que ha durado años.
C1 noun /roʊt/

rote

de memoria
Meaning
mechanical or habitual repetition, often without understanding
Example
He learned the poem by rote without understanding its meaning.
Él aprendió el poema de memoria sin entender su significado.
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.
A2 noun reɪndʒ

range

alcance
Meaning
The extent or scope of something; the distance that can be covered or the limits within which something operates.
Example
The new electric car has a range of 400 miles.
El nuevo coche eléctrico tiene un alcance de 400 millas.
B2 noun /ˈrep.taɪl/

Reptile

Reptil
Meaning
a cold-blooded animal with scaly skin that lays eggs on land
Example
The lizard is a common reptile found in gardens.
El lagarto es un reptil común que se encuentra en los jardines.
C1 noun ˈrɔɪəl ˈbɛŋɡəl ˈtaɪɡər

Royal Bengal Tiger

Tigre Real de Bengala
Meaning
A subspecies of tiger found primarily in India and Bangladesh, known for its distinctive orange coat with black stripes.
Example
The Royal Bengal Tiger is an iconic species of the Sundarbans.
El Tigre Real de Bengala es una especie icónica de los Sundarbans.
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.
C1 verb /ˌriː.ɪˈstæblɪʃ/

reestablish

restablecer
Meaning
to set up or restore something again after it has been disrupted
Example
The government worked hard to reestablish peace in the region.
El gobierno trabajó arduamente para restablecer la paz en la región.
B1 noun /ˈreɪn.boʊ/

Rainbow

arco iris
Meaning
an arch of colors formed in the sky by sunlight shining through rain
Example
After the storm, a beautiful rainbow appeared in the sky.
Después de la tormenta, apareció un hermoso arco iris en el cielo.
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.
B1 noun /rɪˈpleɪsmənt/

replacement

reemplazo
Meaning
the act of substituting one thing or person for another
Example
She got a replacement for her damaged phone.
Ella consiguió un reemplazo para su teléfono dañado.
A2 noun rɪˈsɜːtʃ

research

investigación
Meaning
The systematic investigation into and study of materials and sources in order to establish facts and reach new conclusions.
Example
Research on radio waves began earlier in India.
La investigación sobre las ondas de radio comenzó antes en India.
B2 verb /ˈroʊ.teɪt/

rotate

rotar
Meaning
to turn around a central point or axis
Example
The Earth rotates on its axis once every 24 hours.
La Tierra rota sobre su eje cada 24 horas.
C1 adjective /rɪˈtɜː.nə.bəl/

Returnable

devolvible
Meaning
able to be returned or given back
Example
The bottle is returnable for a deposit refund.
La botella es devolvible para un reembolso del depósito.
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.
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.
B1 adverb /ˈrel.ə.tɪv.li/

Relatively

relativamente
Meaning
in comparison to something else; quite; fairly
Example
The weather is relatively warm today.
El clima está relativamente cálido hoy.
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.
B2 noun /ˈrækɪt/

racket

raqueta / alboroto
Meaning
A piece of equipment used to hit the ball in sports like tennis or badminton; also a loud noise or an illegal scheme.
Example
He bought a new tennis racket for the match.
Él compró una nueva raqueta de tenis para el partido.
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 /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.
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.
B1 verb /rɪˈviːl/

reveal

revelar
Meaning
to make known or show something that was hidden
Example
The investigation revealed the truth.
La investigación reveló la verdad.
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.
B2 noun /ˌreɡ.jʊˈlær.ɪ.ti/

Regularity

regularidad
Meaning
the quality of being regular; occurring at fixed intervals or in a consistent pattern
Example
The regularity of his exercise routine helped him stay healthy.
La regularidad de su rutina de ejercicios lo ayudó a mantenerse saludable.
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.
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 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.
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.
A2 noun /rɪˈfrɪdʒ.ər.eɪ.tər/

Refrigerator

nevera
Meaning
an appliance for keeping food and drinks cold
Example
Please put the milk in the refrigerator to keep it fresh.
Por favor, pon la leche en la nevera para mantenerla fresca.