rock
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A2 noun /rɒk/

rock

Meaning
a large, solid piece of mineral matter
Example
The mountain was made of solid rock.
B2 verb rɪˈzaɪn

resign

Meaning
Voluntarily leave a job or other position.
Example
Ministers were forced to resign.
A2 verb /rɪˈtɜːrn/

return

Meaning
to come or go back to a place; to give back
Example
I will return home tomorrow.
C2 noun /ræpˈskæliən/

rapscallion

Meaning
A mischievous or cheeky person; a rascal.
Example
The little rapscallion hid his brother’s shoes as a prank.
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.
C1 adjective /ˈroʊ.ɡɪʃ/

Roguish

Meaning
mischievous; playfully dishonest
Example
His roguish smile suggested he was up to some mischief.
C2 verb /ˌriː.kəˈnɔɪ.tər/

reconnoiter

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.
C1 verb /rɪˈmɪt/

remit

Meaning
To send money in payment or as a gift; to cancel or refrain from exacting a debt or punishment.
Example
He promised to remit the payment by the end of the week.
C1 noun /ˈroʊz ˈwɔː.tər/

Rose-water

Meaning
a flavored water made by steeping rose petals in water, used in cooking and cosmetics
Example
She added a few drops of rose-water to the dessert.
B2 verb /ræm/

ram

Meaning
to strike or push something with great force
Example
The truck rammed into the wall.
C2 noun /ˈrɛv.ər.i/

reverie

Meaning
A state of being pleasantly lost in one's thoughts; a daydream.
Example
Lost in reverie, he didn't hear his name being called.
B2 adverb /rɪˈlʌk.tənt.li/

Reluctantly

Meaning
in an unwilling manner; with hesitation or resistance
Example
She reluctantly agreed to help with the project.
B2 noun ˌrev.əˈluː.ʃənz

revolutions

Meaning
Dramatic and wide-reaching changes in political, social, or economic systems, often involving the overthrow of a government or social order.
Example
Revolutions often lead to significant societal changes.
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 verb /rɪŋ/

ring

Meaning
to make a clear sound like a bell; to call by telephone
Example
The bell rings every hour.
C1 verb /rɪˈkuːpəreɪt/

recuperate

Meaning
to recover from illness or regain strength
Example
She went to the countryside to recuperate after surgery.
C1 noun /rɪˈmɪt.əns/

Remittance

Meaning
A sum of money sent in payment or as a gift.
Example
The country's economy benefits from expatriate remittance.
B2 adjective /ˈrɒt.ən/

Rotten

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

reunite

Meaning
to bring together again after separation
Example
The family was reunited after many years.
C1 verb /ˌriːˈvaɪ.t̬əl.aɪz/

revitalize

Meaning
To restore energy and effectiveness to something.
Example
The new policies aim to revitalize the economy.
C1 verb /rɪˈtreɪs/

retrace

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.
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 noun /rɪˈfaɪnəri/

refinery

Meaning
an industrial facility where raw materials are processed and purified
Example
The oil refinery processes thousands of barrels daily.
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.
C2 noun /red ˌəʊ.liˈæn.dər/

Red oleander

Meaning
a poisonous flowering shrub with bright red or pink flowers
Example
The red oleander blooms throughout the summer months.
B1 verb /ˌrɛprɪˈzɛnt/

represent

Meaning
to act or speak on behalf of someone or something
Example
He will represent our company at the conference.
C1 noun /ˌriː.əˈdʒʌst.mənt/

readjustment

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.
C2 verb (archaic/rare) /rɛk/

reck

Meaning
To care about or be concerned with (something); to have regard for.
Example
He does not reck the dangers of his actions.
B1 adverb /rɪˈpiː.tɪd.li/

Repeatedly

Meaning
again and again; many times over
Example
He repeatedly asked for help with his homework.
C2 noun /ˈreɪmənt/

raiment

Meaning
clothing, especially fine or formal wear
Example
The king wore royal raiment during the ceremony.
B2 noun /ˌrɛfəˈriː/

referee

Meaning
a person who oversees a game or match to ensure the rules are followed
Example
The referee stopped the game after a foul.
C1 noun /ˈrɛt.ər.ɪk/

rhetoric

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.
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.
C1 noun /ˌriː.dɪs.trɪˈbjuː.ʃən/

redistribution

Meaning
The sharing of wealth or resources more equally among society.
Example
The government introduced a redistribution policy to reduce inequality.
C2 noun /ˌrɛtroʊˈɡrɛʃən/

retrogression

Meaning
a return to a worse or less developed state
Example
The country experienced economic retrogression after the crisis.
B1 verb /rɪˈper/

repair

Meaning
to fix something that is broken or damaged
Example
The mechanic will repair the car's engine tomorrow.
C2 verb /rɪˈkænt/

recant

Meaning
to withdraw or renounce a statement or belief formally
Example
He recanted his previous statement in court.
B2 noun /rɪˈfjuː.zəl/

Refusal

Meaning
the act of saying no to something or not accepting something
Example
His refusal to cooperate made the project more difficult.
B1 noun /ˈrʌnər/

runner

Meaning
a person who runs, especially in races or for exercise
Example
The runner crossed the finish line with a big smile.
A2 noun /ˈruːlər/

ruler

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.
B2 noun ˌriːkənˈstrʌkʃn

reconstruction

Meaning
The action or process of reconstructing or being reconstructed.
Example
The reconstruction project took years.
B2 verb /rɪˈstrɪkt/

restrict

Meaning
To limit the size, amount, or range of something.
Example
The government decided to restrict the use of plastic bags.
C2 noun /ˈræpsədi/

rhapsody

Meaning
an expression of great enthusiasm or an epic musical composition
Example
The singer’s performance was a rhapsody of emotions.
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.
C1 noun /rɪˈkɒnɪsəns/

reconnaissance

Meaning
A survey or exploration, especially for military or strategic purposes.
Example
The soldiers conducted a reconnaissance of the enemy camp.
B1 adjective ˈriː.dʒən.əl

regional

Meaning
Relating to or characteristic of a region.
Example
Regional hubs support localized industries.
C1 noun /ˈrem.nənt/

Remnant

Meaning
a small remaining quantity of something; a piece of cloth left over after the main piece has been used
Example
Only a remnant of the ancient wall remains.
A1 noun /ˈrɪv.ər/

River

Meaning
a large natural stream of water flowing in a channel to the sea, a lake, or another river
Example
The river flows through the valley and into the ocean.
C1 adjective /rɪˈzɪdjuəl/

residual

Meaning
Remaining after the greater part has gone.
Example
The patient experienced residual pain after the surgery.
B2 noun /ˈrɛfjuːdʒ/

refuge

Meaning
a place that provides shelter or protection from danger or distress
Example
The villagers took refuge in the temple during the storm.
C2 verb /ˌrɛprɪˈhɛnd/

reprehend

Meaning
to express disapproval or criticism of someone or something
Example
The teacher reprehended the student for being dishonest.
C2 adjective /ˈrɛd.ələnt/

redolent

Meaning
having a strong pleasant smell; strongly reminiscent or suggestive of something
Example
The kitchen was redolent of spices and fresh herbs.
C1 verb /riːˈpeɪ.tri.eɪt/

repatriate

Meaning
To return someone to their own country, often after war or imprisonment.
Example
The government worked to repatriate the refugees safely.
B2 noun /rɪˈmeɪnz/

remains

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.
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 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.
C2 noun /ˈriːbəs/

rebus

Meaning
a puzzle in which words are represented by pictures, symbols, or letters
Example
The children enjoyed solving the rebus puzzles in the magazine.
B2 verb /ˈrʌm.bəl/

rumble

Meaning
to make a continuous deep, resonant sound
Example
Thunder rumbled in the distance.
B2 adjective /raɪp/

Ripe

Meaning
fully developed and ready to eat; mature; ready for action or use
Example
The bananas are ripe and ready to eat.
C2 verb /ˈræpsəˌdaɪz/

rhapsodize

Meaning
to speak or write with great enthusiasm and admiration
Example
He would often rhapsodize about his travels to Europe.
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.
C1 noun /rɪˈspɒndənt/

respondent

Meaning
A person who replies to something, especially in a survey or legal case
Example
The survey had over 1,000 respondents.
C1 verb /ˈreɪdieɪt/

radiate

Meaning
to emit energy or light; to spread out from a center
Example
The fireplace radiates warmth throughout the room.
C1 noun /ˌrɛstɪˈtjuːʃən/

restitution

Meaning
The act of restoring something to its rightful owner or compensating for loss
Example
The court ordered restitution to the victims of the fraud.
B2 verb /rɪˈfreɪn/

refrain

Meaning
To hold oneself back from doing something.
Example
Please refrain from smoking in this area.
C2 noun /ˌrɛprɪˈhɛnʃən/

reprehension

Meaning
The act of rebuking or criticizing severely.
Example
The teacher’s reprehension of the student’s behavior was justified.
C2 adjective /ˈrʌdi/

ruddy

Meaning
Having a healthy red color in the face.
Example
She had a ruddy complexion from working outdoors.
B1 noun /rɪˈkɔːdɪŋ/

recording

Meaning
the act or process of recording something
Example
The recording of the interview was clear and loud.
B1 noun /ˈrʌbər/

rubber

Meaning
a tough elastic substance made from the latex of tropical plants or synthetically, used for making tires, boots, and other products.
Example
The tires are made of natural rubber.
B2 noun /ˌriː.ɪnˈfɔːrs.mənt/

reinforcement

Meaning
Strengthening or supporting something, especially behavior or learning.
Example
Positive reinforcement helps in learning.
B1 verb rɪˈdjuːst

reduced

Meaning
Make smaller or less in amount, degree, or size.
Example
Singapore has reduced plastic usage significantly.
C1 adjective /ˈræb.ɪd/

rabid

Meaning
Having extreme or fanatical support for something; relating to or suffering from rabies.
Example
He was a rabid fan of the football team.
C1 adjective /rɪˈvɜː.sə.bəl/

Reversible

Meaning
able to be turned the other way around; able to be undone or changed back
Example
This jacket is reversible and can be worn on both sides.
C2 adjective /ˈrɪz.ə.bəl/

risible

Meaning
so absurd or ridiculous that it deserves to be laughed at
Example
The idea of flying pigs is completely risible.
B2 noun /rɪb/

Rib

Meaning
one of the curved bones that protect the chest and lungs
Example
He broke his rib in the accident.
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 noun /ˈrɪvjʊlət/

rivulet

Meaning
a small stream of water; a tiny brook
Example
A rivulet ran down the hillside after the rain.
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 /ˈræfɪʃ/

raffish

Meaning
unconventional and slightly disreputable but attractive
Example
He had a raffish charm that made him popular in the city.
C1 noun/verb /rɪˈpriːz/

reprise

Meaning
A repetition or return to an earlier theme, role, or action.
Example
The actor reprised his role in the sequel.
C1 verb /reɪz/

raze

Meaning
To completely destroy or demolish something, especially a building.
Example
The old factory was razed to make way for new apartments.
C2 adjective /ˈroʊziət/

roseate

Meaning
Having a pink color; optimistic or idealistic.
Example
She looked at the future with roseate optimism.
A2 noun /rɪˈfrɪdʒ.ər.eɪ.tər/

Refrigerator

Meaning
an appliance for keeping food and drinks cold
Example
Please put the milk in the refrigerator to keep it fresh.
C1 verb/noun /ˈrɛlɪʃ/

relish

Meaning
to greatly enjoy; also a condiment or sauce
Example
She relished the opportunity to travel abroad.
B2 noun /reɪdʒ/

rage

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

rile

Meaning
to irritate or annoy someone
Example
His careless comments really riled her.
B1 adverb /ˈruːdli/

Rudely

Meaning
in an impolite or discourteous manner
Example
He rudely interrupted the speaker during the presentation.
C1 noun /ˈredʒ.ɪ.mən/

regimen

Meaning
A prescribed course of medical treatment, way of life, or diet for the promotion or restoration of health.
Example
A strict exercise regimen improves overall fitness.
B2 adjective /ˈrɪdʒ.ɪd/

Rigid

Meaning
hard and stiff; not able to bend; strict and unwilling to change
Example
The company has a rigid dress code that all employees must follow.
B2 noun /ˈraɪvəl/

Rival

Meaning
a person or thing competing with another for the same objective or for superiority in the same field
Example
The two companies have been business rivals for decades.
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.
B2 adjective /rɪˈsɔːrsfəl/

resourceful

Meaning
Having the ability to find quick and clever ways to overcome difficulties.
Example
She is very resourceful when it comes to solving unexpected problems.
B2 adjective /ˈrʌn daʊn/

run-down

Meaning
in a poor condition; worn out or neglected
Example
They live in a run-down house at the edge of town.
C1 noun /rɪˈvɒl.vər/

Revolver

Meaning
a pistol with revolving chambers enabling several shots to be fired without reloading
Example
The detective drew his revolver from its holster.
B1 noun /rɪˈwɔːd/

reward

Meaning
something given in recognition of service, effort, or achievement
Example
He received a reward for returning the lost wallet.
C1 adjective /ˌret.rəˈspek.tɪv/

Retrospective

Meaning
looking back on or dealing with past events or situations
Example
The museum held a retrospective exhibition of the artist's work.
C1 verb /rænt/

rant

Meaning
to speak or shout in an angry, uncontrolled way
Example
He ranted about the unfair treatment at work.
B2 adjective /ˈreɪʃəl/

racial

Meaning
relating to a race of people
Example
Racial equality is an important issue in many societies.
B2 adjective /ræʃ/

rash

Meaning
Acting quickly without careful consideration; reckless.
Example
It was a rash decision to invest without research.
C1 verb /rɪˈmjuːnəreɪt/

remunerate

Meaning
To pay someone for services or work done.
Example
The company will remunerate employees fairly for their overtime.
C2 noun /rɪˈdʒɔɪndər/

rejoinder

Meaning
a quick or witty reply; a response to a remark or argument
Example
His sharp rejoinder silenced the crowd.
B2 adjective /rɪˈlaɪ.ənt/

reliant

Meaning
depending on someone or something for support
Example
The country is too reliant on imported goods.
C1 noun /rəˈpɪdəti/

rapidity

Meaning
The quality of moving or happening quickly; swiftness or speed.
Example
The rapidity of technological change is astonishing.
C1 adjective /ˈrez.ə.luːt/

Resolute

Meaning
determined; having a firm decision; unwavering
Example
She remained resolute in her decision to pursue her dreams.
C2 verb /rɪˈɡeɪl/

regale

Meaning
To entertain or amuse someone with stories, food, or drink.
Example
He regaled us with stories of his travels around the world.
B2 noun/verb /rɪˈmɑːrk/

remark

Meaning
something that is said; a comment
Example
She made a remark about the weather.
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.
B2 adjective /rɪˈfaɪnd/

Refined

Meaning
elegant and cultured in appearance, manner, or taste; purified
Example
She has very refined taste in art and music.
B2 noun /rɪˈstreɪnt/

Restraint

Meaning
the action of keeping someone or something under control; self-control
Example
She showed great restraint in not responding to the criticism.
C2 adjective /ˈrɛkənˌsaɪləbl̩/

reconcilable

Meaning
Capable of being resolved or made consistent.
Example
Their differences are reconcilable with honest communication.
C1 adjective /riˈæk.tɪv/

Reactive

Meaning
responding to situations rather than initiating them; chemically active
Example
The company took a reactive approach to customer complaints.
B2 noun /ˌren.əˈveɪ.ʃən/

Renovation

Meaning
the act of renovating; restoration to a former better state
Example
The old house underwent a complete renovation last year.
B2 verb /ˈraɪpən/

ripen

Meaning
to become or make something ready to eat or fully developed
Example
The bananas ripened quickly in the warm weather.
C2 adjective /ˌriːkruːˈdɛsənt/

recrudescent

Meaning
reviving or breaking out again after a period of abatement
Example
Recrudescent tensions threatened the fragile ceasefire.
B2 noun /rɪˈsɪp.i.ənt/

Recipient

Meaning
a person who receives something
Example
She was the recipient of the prestigious award.
B2 noun /ˈruːmər/

rumor

Meaning
a currently circulating story or report of uncertain or doubtful truth.
Example
There’s a rumor that the company will merge next year.
B1 verb /rɪˈvaɪz/

revise

Meaning
To change, improve, or update something, especially a written work.
Example
She had to revise her essay before submission.
B2 adjective /ˌrez.ɪˈden.ʃəl/

residential

Meaning
Designed for people to live in.
Example
The institution was fully residential.
C2 noun /roʊˈtʌn.də.ti/

rotundity

Meaning
the quality of being round or plump
Example
The rotundity of the balloon made it float gracefully.
B1 adjective /rɪˈlɪdʒəs/

Religious

Meaning
relating to or believing in a religion; devout; spiritual;
Example
He comes from a very religious family.
A2 noun rɪˈpɔːt

report

Meaning
An account given of a particular matter, especially in the form of an official document after thorough investigation or consideration.
Example
The report highlights critical issues.