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A2 verb /rɪˈdjuːs/

reduce

Meaning
to make smaller in size, amount, or degree; to decrease
Example
We need to reduce our expenses this month.
A1 noun /roʊd/

road

Meaning
a wide way leading from one place to another
Example
We drove along the road to the village.
C1 noun /ˌrev.əˈluː.ʃən.ər.i ˈbreɪk.θruː/

revolutionary breakthrough

Meaning
A sudden, dramatic, and important discovery or development that changes everything.
Example
Robotic surgery is a revolutionary breakthrough in healthcare.
C1 noun /ˈrez.ɪ.dənt ˈkəʊ.ɔː.dɪ.neɪ.tər/

resident coordinator

Meaning
A local administrator or official who coordinates activities in a specific region.
Example
The resident coordinator welcomed all representatives.
B2 noun /rɪˌlaɪəˈbɪləti/

reliability

Meaning
the quality of being trustworthy or performing consistently well
Example
Customers value the reliability of our service.
C2 verb /ˌriːkruːˈdɛs/

recrudesce

Meaning
to break out or appear again after a period of dormancy or decline
Example
After months of calm, violence recrudesced in the region.
C1 verb /ˈruː.mɪ.neɪt/

ruminate

Meaning
to think deeply about something; to chew cud (for animals)
Example
She sat alone to ruminate on her decision.
C1 verb /rɪˈdʒuː.vɪ.neɪt/

rejuvenate

Meaning
To make or feel young, healthy, or energetic again.
Example
A vacation can rejuvenate the mind and body.
C1 noun /riːk/

Reek

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.
B1 noun /rɪˈsep.ʃən/

Reception

Meaning
the action of receiving something or someone; a formal social occasion held to welcome someone
Example
The wedding reception was held at a beautiful hotel.
B1 adjective /rɪˈtaɪərd/

Retired

Meaning
having left one's job and ceased to work; withdrawn from activity
Example
My retired grandfather enjoys gardening in his free time.
C1 noun /roʊz ˈber.i/

Rose berry

Meaning
a type of berry with rose-like characteristics or flavor
Example
The rose berry has a delicate floral taste that reminds me of roses.
C1 noun /rəʊˈbɒt.ɪk ˈsɜː.dʒər.i/

robotic surgery

Meaning
Surgery performed with the assistance of robotic systems to enhance precision and reduce invasiveness.
Example
Robotic surgery enhances precision in complex procedures.
B2 verb /rɪˈtriːv/

retrieve

Meaning
to get something back that was lost or taken; to recover
Example
She managed to retrieve her lost phone from the taxi.
B1 verb /riˈækt/

react

Meaning
to respond or behave in a particular way to something
Example
She reacted angrily when she heard the news.
C1 noun /ˌrɛfjʊˈteɪʃən/

refutation

Meaning
The act of proving a statement or argument to be false or incorrect.
Example
Her essay was a strong refutation of the opposing theory.
B1 adjective /ˈriː.zən.ə.bəl/

Reasonable

Meaning
fair and sensible; not too expensive; logical and practical
Example
The hotel offers reasonable prices for quality accommodation.
C2 noun /rɪˈsɪdɪvɪst/

recidivist

Meaning
A person who repeatedly commits crimes, especially after having been punished.
Example
The police identified him as a recidivist who had been arrested several times before.
C1 noun /rɪˌtæl.iˈeɪ.ʃən/

Retaliation

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.
B1 noun raɪts

rights

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.
B1 noun /ˈreɪlˌroʊd/

railroad

Meaning
a track or system of tracks made of steel rails along which trains run
Example
The railroad connects the city to several nearby towns.
B1 noun /ˌrek.ə.menˈdeɪ.ʃən/

Recommendation

Meaning
a suggestion that someone or something would be good or suitable for a particular job or purpose
Example
I got this job based on a recommendation from my professor.
B1 verb /rɪˈvaɪz/

revise

Meaning
To change, improve, or update something, especially a written work.
Example
She had to revise her essay before submission.
C1 verb /ˌriː.ɪˈstæblɪʃ/

reestablish

Meaning
to set up or restore something again after it has been disrupted
Example
The government worked hard to reestablish peace in the region.
C2 adjective /ˈrɛkənˌdaɪt/ or /ˈrɛkəndaɪt/

recondite

Meaning
Little known or difficult to understand.
Example
The professor’s lecture was full of recondite theories.
B1 verb /rɪd/

rid

Meaning
to remove or get rid of something
Example
I need to rid the house of all the clutter.
B2 adjective /ˈrændəm/

Random

Meaning
without pattern or predetermined order; happening by chance
Example
She selected a random book from the library shelf.
B2 adverb /rɪˈlʌk.tənt.li/

Reluctantly

Meaning
in an unwilling manner; with hesitation or resistance
Example
She reluctantly agreed to help with the project.
C1 noun rɪˌkuːpərˈeɪʃən

recuperation

Meaning
The process of gradually recovering from illness or fatigue
Example
Rest is essential for recuperation after illness.
B2 verb /rɪˈzaɪd/

reside

Meaning
to live or dwell in a particular place
Example
They reside in a large house near the river.
B2 verb /ˈroʊ.teɪt/

rotate

Meaning
to turn around a central point or axis
Example
The Earth rotates on its axis once every 24 hours.
B2 adverb /rɪˈpɔːtɪdli/

reportedly

Meaning
according to what is said or believed, although not confirmed
Example
The company has reportedly agreed to the new terms.
C1 noun /rɪˈbʌtəl/

rebuttal

Meaning
a statement or argument made to oppose or disprove another
Example
Her rebuttal was clear and convincing.
C2 adjective /rɪˈfjuː.tə.bəl/

Refutable

Meaning
capable of being proven wrong or false; able to be disproved
Example
His theory was refutable because it could be tested experimentally.
C1 verb /ˌriːˈkæst/

recast

Meaning
To present or change something in a different form or style.
Example
The director decided to recast the role with a younger actor.
B2 noun /rɪˈmeɪn.dər/

Remainder

Meaning
the part that is left over; what remains after the other parts have been taken away
Example
The remainder of the food was stored in the refrigerator.
B1 verb /rɪˈdʒekt/

reject

Meaning
to refuse to accept or consider something
Example
The committee decided to reject the proposal.
C1 verb /rænt/

rant

Meaning
to speak or shout in an angry, uncontrolled way
Example
He ranted about the unfair treatment at work.
A1 adverb /ˈriː.ə.li/

Really

Meaning
actually; truly; very much
Example
I really enjoyed the concert last night.
C2 noun /ˈrɛkluːsəri/

reclusory

Meaning
A place for seclusion or retreat, especially for a recluse or hermit.
Example
The monk spent years in the reclusory away from society.
C2 verb /rɪˈsɪnd/

rescind

Meaning
to revoke, cancel, or repeal a law, order, or agreement
Example
The company decided to rescind the job offer.
C1 adjective /rɪˈpres.ɪv/

Repressive

Meaning
restraining freedom or preventing self-expression; oppressive
Example
The repressive government banned all forms of protest.
C1 noun /ˌriːhəˌbɪlɪˈteɪʃən/

rehabilitation

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.
B2 noun /rʌʃ/

Rush

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.
C2 adjective /ˈrævənɪŋ/

ravening

Meaning
Extremely hungry and greedy; voracious.
Example
The ravening wolves circled the camp.
B1 verb /rɪˈflekt/

reflect

Meaning
to think deeply about; to mirror back light or image
Example
The mirror reflects her beautiful face.
C1 noun /rɪˈpɑːzɪtɔːri/

repository

Meaning
a place where things are stored or kept for safekeeping
Example
The library serves as a repository of knowledge.
C2 noun /rɪˈmɒnstrəns/

remonstrance

Meaning
A forceful protest or objection.
Example
The workers’ remonstrance against unfair treatment was ignored.
C1 noun /rɪˈsaɪtər/

reciter

Meaning
a person who recites or repeats something aloud from memory, especially poetry, prayers, or formal texts
Example
The reciter delivered the poem with clarity and emotion.
C1 noun /ˌrɛs.ɪˈprɒs.ɪ.ti/

reciprocity

Meaning
The practice of exchanging things with others for mutual benefit.
Example
Business relationships thrive on reciprocity.
C1 noun /ˈrɪpəl/

Ripple

Meaning
a small wave on the surface of water; a spreading effect or influence
Example
The stone created ripples across the calm pond.
C1 adjective /ræpt/

Rapt

Meaning
completely fascinated or absorbed by what one is seeing or hearing
Example
The children listened with rapt attention to the storyteller.
B2 adjective /ˈrɪtʃ.u.əl/

Ritual

Meaning
relating to religious or ceremonial practices
Example
The wedding ceremony included many traditional ritual elements.
B2 verb /ˈreɡjəleɪt/

regulate

Meaning
to control or maintain according to rules or laws
Example
The government regulates food safety.
C2 noun /raɪm/

rime

Meaning
frost formed on cold surfaces by freezing water vapor
Example
The trees were covered with a white rime after the cold night.
C1 adjective /ˈræmʃækəl/

ramshackle

Meaning
poorly built or maintained; in a state of disrepair
Example
They lived in a ramshackle old house on the edge of town.
C1 noun /ˈreɪ.biːz/

rabies

Meaning
A viral disease that causes inflammation of the brain in humans and other mammals, usually transmitted through animal bites.
Example
The dog was vaccinated against rabies.
C1 adjective /rɪˈdʒɛn.ə.rə.tɪv/

regenerative

Meaning
Able to restore or renew damaged environments, soil, or resources.
Example
Regenerative farming improves soil health and biodiversity.
C1 adjective /ˈrɛvərənt/

reverent

Meaning
Showing deep and solemn respect.
Example
They listened to the speech in a reverent silence.
B2 verb /roʊm/

roam

Meaning
to walk or travel without a specific destination; to wander
Example
Wild animals roam freely in the forest.
C2 noun /roʊˈtʌn.də/

rotunda

Meaning
a large circular building or hall, often with a dome
Example
Tourists gathered inside the grand rotunda of the capitol.
B2 verb /rɪˈfaɪn/

refine

Meaning
to improve by making small changes; to purify
Example
The chef refines the recipe to perfection.
C2 noun /rɪˈfrɪndʒənsi/

refringency

Meaning
The ability of a substance to bend light; refractive power.
Example
Glass has a higher refringency than water.
C1 verb /ˌriːˈtʌtʃ/

retouch

Meaning
To improve or repair a picture, photograph, or image by making small changes.
Example
The photographer retouched the image to remove blemishes.
C1 noun /rɪˈkɜr.əns/

Recurrence

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.
B2 noun /ˈreɪn.dʒər/

ranger

Meaning
A person responsible for protecting and managing forests, parks, or natural areas.
Example
The park ranger guided the tourists through the forest trail.
B2 verb /ˌriːˈbɪld/

rebuild

Meaning
to build something again after it has been damaged or destroyed
Example
The villagers worked together to rebuild the bridge after the flood.
B2 noun ˈrɛstɪŋ pleɪs

resting place

Meaning
A place where someone or something rests, especially a burial site.
Example
The resting place of the martyrs is near the river.
C1 noun /ˌres.ɪˈteɪ.ʃən/

Recitation

Meaning
the action of reciting or repeating aloud from memory
Example
The poetry recitation contest was held in the auditorium.
C1 noun /ˈræftər/

rafter

Meaning
One of the sloping beams that supports a roof.
Example
The old barn’s rafters were exposed.
B2 noun /reɪdʒ/

rage

Meaning
intense anger or fury
Example
She shouted in a fit of rage after hearing the news.
C1 verb /riˈɪtəreɪt/

reiterate

Meaning
To say something again or repeatedly for emphasis or clarity.
Example
The teacher reiterated the importance of honesty.
C1 noun /rɪˈtriː.vəl/

retrieval

Meaning
The process of getting something back, especially from storage or memory.
Example
The brain's retrieval system helps recall past experiences.
B1 noun /rɪˈzɔː.sɪz/

resources

Meaning
A stock or supply of money, materials, staff, and other assets.
Example
The region was rich in herbal resources.
C1 adjective rɪsk-ədˈʤɛstɪd

risk-adjusted

Meaning
Modified or calibrated to account for risk factors in investment returns.
Example
Risk-adjusted returns consider both potential profit and loss.
B2 noun ˌreɪdɪˈeɪʃən

radiation

Meaning
The emission of energy as electromagnetic waves or as moving subatomic particles.
Example
Radiation from the sun can be harmful without protection.
C1 noun /rɪˈmɛmbrəns/

remembrance

Meaning
the act of remembering or honoring someone or something
Example
A service was held in remembrance of the fallen soldiers.
C2 adjective /ˈrɛɡnənt/

regnant

Meaning
Reigning; currently holding power, authority, or dominance.
Example
The regnant queen introduced several reforms during her reign.
C2 verb /rɪˈkwaɪt/

requite

Meaning
to return or repay a favor, service, or feeling
Example
She requited his kindness with a thoughtful gift.
B2 verb /riːp/

reap

Meaning
to cut or gather a crop; to receive as a consequence of actions
Example
Farmers reap wheat in the late summer.
B1 verb /rɪˈviːl/

reveal

Meaning
to make known or show something that was hidden
Example
The investigation revealed the truth.
C1 verb /rɪˈpjuː.di.eɪt/

repudiate

Meaning
to refuse to accept, recognize, or support something
Example
He repudiated the claim that he was involved in the scandal.
C1 adjective /ˈruːfəl/

rueful

Meaning
Expressing sorrow, regret, or pity.
Example
He gave a rueful smile after losing the match.
C2 adjective /rəˈʃɛrʃ/

recherche

Meaning
Rare, exotic, or obscure, often in a sophisticated or refined way.
Example
The gallery displayed many recherche artworks from unknown artists.
C1 verb /rɪˈnaʊns/

renounce

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.
C1 adjective /ˈrep.jə.tə.bəl/

Reputable

Meaning
having a good reputation; respected and trusted
Example
She works for a reputable law firm in the city.
B2 noun /ˈrɪdəl/

Riddle

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.
B2 noun /ˈreɪ.zər/

Razor

Meaning
a sharp-edged instrument used for shaving hair from the skin
Example
He shaved his beard with a sharp razor.
A2 adverb /ˈrɑː.ðər/

Rather

Meaning
to some extent; instead; preferably
Example
I would rather stay home than go to the party.
C1 noun /ˌrɛkwɪˈzɪʃən/

requisition

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.
C1 noun ˌriːˈstrʌk.tʃər.ɪŋ

restructuring

Meaning
The action of organizing something differently.
Example
The company underwent restructuring to improve efficiency.
B1 adjective /roʊˈmæn.tɪk/

Romantic

Meaning
relating to love; idealistic; dreamy
Example
They enjoyed a romantic dinner by candlelight.
C2 verb /rɪˈmɒnstreɪt/

remonstrate

Meaning
To make a forceful protest or objection.
Example
Citizens remonstrated against the new tax policy.
B1 verb /rɪˈlaɪ/

rely

Meaning
to depend on or trust someone or something
Example
I rely on my friends for support.
C1 verb /ˈræn.də.maɪz/

randomize

Meaning
To make something happen in a random order or manner.
Example
The software can randomize the order of questions.
C1 verb /rɪˈsʌsɪteɪt/

resuscitate

Meaning
to revive someone from unconsciousness or apparent death
Example
The doctors tried to resuscitate the patient after the heart attack.
C1 verb /rɪɡ/

rig

Meaning
to manipulate or control something dishonestly; to set up equipment
Example
The election was rigged by corrupt officials.
B2 adjective /rɪˈliːvd/

relieved

Meaning
feeling happy and less worried after something stressful has been removed or resolved
Example
She felt relieved after hearing the good news.
C1 noun /ˈrɛzɪn/

resin

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.
C2 verb /raɪv/

rive

Meaning
to tear apart violently
Example
The earthquake rived the ground in several places.
A2 noun /reɪs/

race

Meaning
a competition of speed, or a group of people with similar characteristics
Example
The race was very exciting, with many competitors.
A2 noun, verb /ˈriːzən/

reason

Meaning
A cause, explanation, or justification for an action or event; to think or argue logically.
Example
There is no reason to be upset.
B1 verb /rʌb/

rub

Meaning
to press and move something firmly against a surface; to apply pressure with movement
Example
She rubbed her hands together to keep them warm.
B1 noun /rɪˈtaɪə.mənt/

Retirement

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.
C2 noun /ˌrækənˈtɜːr/

Raconteur

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.
C1 verb /rɪˈpiːl/

repeal

Meaning
To officially cancel or revoke a law or decision.
Example
The government decided to repeal the outdated law.
B2 noun /ˈreɪʃoʊ/

ratio

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.
C2 adjective /ræpˈtɔːriəl/

raptorial

Meaning
Relating to birds of prey or predatory behavior.
Example
The eagle is a raptorial bird with sharp talons.
B2 noun /rɪˈlʌk.təns/

Reluctance

Meaning
unwillingness to do something; hesitation
Example
He showed reluctance to accept the job offer.
A2 adverb /ˈrɛɡjələrli/

regularly

Meaning
at regular intervals; in a regular manner
Example
She exercises regularly to stay healthy.
B2 adjective /rɪˈstrɪk.tɪd/

Restricted

Meaning
limited or controlled; subject to restrictions
Example
Access to this area is restricted to authorized personnel only.
C1 noun/verb /rɪˈpoʊz/

repose

Meaning
a state of rest, sleep, or tranquility; to rest or lie in a peaceful position
Example
After the long journey, she sought repose in the quiet garden.
B2 adjective /ˈrɒt.ən/

Rotten

Meaning
decayed; spoiled; bad
Example
The apple is rotten and should be thrown away.
B2 noun /ˈraɪət/

Riot

Meaning
a violent disturbance of the peace by a crowd; an uncontrolled outburst
Example
The peaceful protest turned into a riot when violence broke out.
A2 noun /rent/

Rent

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.
C1 adjective /rɪˈtɔːrɪkəl/

rhetorical

Meaning
relating to the art of effective or persuasive speaking or writing; often a question asked to make a point rather than get an answer
Example
He asked a rhetorical question during the debate.
B2 noun ˈrɛvənuː

revenue

Meaning
Income, especially when of a company or organization.
Example
The company's revenue grew by 10% this year.
B1 verb /rɪˈvjuː/

review

Meaning
to examine or assess something again; to write a critical evaluation
Example
I need to review my notes before the exam.
A2 noun ˈrɛlətɪvz

Relatives

Meaning
A person connected by blood or marriage; a kinsman or kinswoman.
Example
Relatives can help you build a complete family tree.
C1 noun /ræmˈbuːtən/

Rambutan

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.
C1 noun rɪˌdʒɛnəˈreɪʃən

regeneration

Meaning
Renewal, growth and development of cells, tissues or energy
Example
Proper rest allows muscle regeneration after exercise.