redundant
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C1 adjective /rɪˈdʌn.dənt/

redundant

Meaning
Not or no longer needed or useful; superfluous.
Example
The report contained redundant information.
B1 adjective /ˈrel.ə.vənt/

Relevant

Meaning
closely connected or appropriate to what is being discussed; pertinent
Example
Please provide only relevant information for this discussion.
B2 noun ˌriːfɔːˈreɪʃən

reforestation

Meaning
The natural or intentional restocking of existing forests and woodlands that have been depleted.
Example
Reforestation efforts are crucial to restoring ecosystems.
C1 noun /ˈriːpər/

reaper

Meaning
a person or machine that cuts and gathers crops
Example
The reaper moved slowly through the golden fields.
A2 adverb /ˈriː.sənt.li/

Recently

Meaning
in the recent past; not long ago
Example
I recently moved to a new apartment.
C2 adjective /ˈrævənɪŋ/

ravening

Meaning
Extremely hungry and greedy; voracious.
Example
The ravening wolves circled the camp.
C2 adjective /ˈræŋ.kər.əs/

rancorous

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

Really

Meaning
actually; truly; very much
Example
I really enjoyed the concert last night.
C1 noun /ˌrɛmɪˈnɪsəns/

reminiscence

Meaning
a story or memory about past events
Example
He shared a reminiscence of his childhood days in the village.
C1 adjective /rɪˈsɔːrs ɪˈfɪʃ.ənt/

resource-efficient

Meaning
Using resources in a way that minimizes waste and maximizes productivity.
Example
Resource-efficient farming conserves water and energy.
B1 adverb /rɪˈpiː.tɪd.li/

Repeatedly

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

reprehend

Meaning
to express disapproval or criticism of someone or something
Example
The teacher reprehended the student for being dishonest.
C1 adjective /ˈrek.wɪ.zɪt/

Requisite

Meaning
made necessary by particular circumstances; required
Example
Good communication skills are requisite for this job.
A2 adjective /rɪˈspɒn.sə.bəl/

Responsible

Meaning
accountable; having duties; reliable and trustworthy
Example
Parents are responsible for their children's education and well-being.
C1 noun /ˈruːdɪmənt/

rudiment

Meaning
A basic principle, element, or fundamental part of something.
Example
He learned the rudiments of music before joining the band.
C1 noun /rɪˈtrækʃən/

retraction

Meaning
the act of taking back a statement, promise, or belief
Example
The newspaper issued a retraction of the false report.
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.
C2 adjective /rɪˈzɪstləs/

resistless

Meaning
Impossible to resist; having an overpowering effect.
Example
She felt a resistless urge to laugh at the joke.
B2 verb /ræm/

ram

Meaning
to strike or push something with great force
Example
The truck rammed into the wall.
C1 noun /rɪˈpreʃən/

Repression

Meaning
the action of subduing someone or something by force; the restraint, prevention, or inhibition of a feeling, impulse, etc.
Example
The government's repression of free speech sparked widespread protests.
B2 verb /riːˈɔːrɡənaɪz/

reorganize

Meaning
to arrange something again in a different way for greater efficiency or order
Example
The manager decided to reorganize the team structure.
B1 noun ruːlz ənd ˌrɛɡjʊˈleɪʃənz

rules and regulations

Meaning
Official orders and laws that control how something is done.
Example
Rules and regulations alone cannot change attitudes.
B2 verb /reɪl/

rail

Meaning
to complain or protest strongly about something
Example
He railed against the unfair decision.
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.
B2 adjective /ˈrɪski/

risky

Meaning
Involving the possibility of danger, harm, or loss
Example
Investing in that startup is risky but could bring high rewards.
C1 adjective /ˌrɛmɪˈnɪsənt/

reminiscent

Meaning
Tending to remind one of something; suggestive of something in the past.
Example
The smell of rain is reminiscent of my childhood in the village.
C1 noun rɪˈfaɪnmənt

refinement

Meaning
The process of removing impurities or unwanted elements from a substance.
Example
His manners showed a refinement that made him stand out in any crowd.
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.
B2 noun/verb /ræft/

raft

Meaning
A flat structure made of logs or planks tied together, used as a boat or floating platform; to travel or transport on such a structure.
Example
They built a raft to cross the river.
A2 preposition /riː/

re

Meaning
concerning or about (used in formal letters or emails)
Example
The letter was sent re your recent application.
B1 verb /rɪˈfɜː/

refer

Meaning
to mention or allude to something; to direct someone to a source of information
Example
Please refer to page 45 for more details.
C1 verb /ˌriːˈkæl.ɪ.breɪt/

recalibrate

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.
B2 verb /ˌriːəˈʃʊr/

reassure

Meaning
to say or do something to remove someone's doubts or fears
Example
The teacher reassured the students before the exam.
C2 verb /ˈrævɪʃ/

ravish

Meaning
To fill with intense delight; to captivate or enchant.
Example
The beauty of the sunset ravished the travelers.
C2 adjective /ˈrɛkənˌdaɪt/ or /ˈrɛkəndaɪt/

recondite

Meaning
Little known or difficult to understand.
Example
The professor’s lecture was full of recondite theories.
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.
B2 noun /ˈrɪb.ən/

ribbon

Meaning
a long, narrow strip of fabric used for tying or decoration
Example
She tied her hair with a red ribbon.
B1 noun /rɪˈkʌvəri/

recovery

Meaning
the process of recovering or returning to a normal state
Example
The patient is in recovery after the surgery.
C1 noun ˈremnənts

remnants

Meaning
A small remaining quantity of something; a surviving trace.
Example
The remnants of the wall are still visible.
C2 verb /ˈræm.ɪ.faɪ/

ramify

Meaning
to spread or branch out into divisions or subdivisions.
Example
The river ramifies into several smaller streams.
C1 verb /ˈrɛzəneɪt/

resonate

Meaning
To produce or be filled with a deep, full, and reverberating sound; to evoke a feeling or memory.
Example
Her words resonated with the audience.
C1 verb /riːl/

reel

Meaning
to lose balance and stagger; to wind or spin something onto a reel
Example
He reeled backward after being punched.
B2 verb /ˈrɛkən/

reckon

Meaning
To think, believe, or expect something; to calculate or estimate.
Example
I reckon it will rain later today.
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 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.
B2 verb /ˌriːkriˈeɪt/

recreate

Meaning
to create or produce something again, especially a new version of something lost or destroyed
Example
The team recreated the lost dataset from backups.
B2 noun rɪˈzɪl.i.əns

resilience

Meaning
The ability to recover quickly from difficulties; toughness.
Example
Testing the resilience of wood is crucial.
B2 adjective /ˈrek.ləs/

Reckless

Meaning
acting without thinking about consequences; careless; dangerous;
Example
His reckless driving caused a serious accident.
C1 adjective /ˈruːfəl/

rueful

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

redoubtable

Meaning
formidable, especially as an opponent; inspiring fear or respect
Example
She was a redoubtable leader who commanded respect from all.
A2 noun /ruːlz/

rules

Meaning
explicit principles or regulations governing conduct or procedure within a particular area of activity
Example
The teacher reminded the students to follow the classroom rules.
C1 noun /rɪˈmɔːrs/

Remorse

Meaning
deep regret or guilt for a wrong committed; bitter regret for something done
Example
He felt deep remorse for his actions.
C2 verb /rɪˈpaɪn/

repine

Meaning
To feel or express discontent or to long for something.
Example
She did not repine at her misfortune but worked harder to improve her life.
C1 verb /rɪˈsiːd/

recede

Meaning
To move back or further away from a previous position.
Example
The floodwaters began to recede after the heavy rain stopped.
B2 adjective /rɪˈɡret.ə.bəl/

Regrettable

Meaning
causing or deserving regret; unfortunate; deplorable
Example
It is regrettable that so many talented people left the company.
B2 verb /rɪˈkleɪm/

reclaim

Meaning
To take back or recover something; to restore to a usable state.
Example
The farmer worked to reclaim the barren land.
C2 noun /riːm/

ream

Meaning
A large quantity of paper (typically 500 sheets); informally, a large amount of something.
Example
The office ordered ten reams of paper.
A2 noun /ˈroʊbɒt/

robot

Meaning
a machine capable of carrying out a complex series of actions automatically
Example
The factory uses robots to assemble cars efficiently.
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.
B2 noun /ˈreɪtɪŋ/

rating

Meaning
an evaluation or assessment, usually numerical
Example
The movie received a high rating from critics.
C1 verb /ˈrʌsl/

rustle

Meaning
To make a soft, light sound like leaves or paper moving.
Example
The leaves rustled gently in the evening breeze.
C1 adjective /ˈræɡ.ɪd/

Ragged

Meaning
torn; tattered; frayed; shabby
Example
The homeless man wore ragged clothes.
C1 adjective /rɪˈsɛsɪv/

recessive

Meaning
In genetics, relating to a trait that is expressed only when two copies of the gene are present.
Example
Blue eye color is often a recessive trait.
B2 adjective rəʊˈbʌst

robust

Meaning
Strong and healthy; vigorous; able to withstand or overcome adverse conditions.
Example
The robust infrastructure ensures reliable communication.
C2 adjective /ˌrɛpərˈtɔːriəl/

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.
C1 adjective /ˈrɛvərənt/

reverent

Meaning
Showing deep and solemn respect.
Example
They listened to the speech in a reverent silence.
C2 noun /ræŋˈɡuːn ˈkriːpər/

Rangoon creeper

Meaning
A climbing vine with fragrant flowers that change color from white to pink to red
Example
The Rangoon creeper covered the entire fence with its sweet-smelling flowers.
B2 adjective /rɪˈspɒn.sɪv/

Responsive

Meaning
reacting quickly and positively; readily reacting to suggestions or changes
Example
The website is very responsive and loads quickly on all devices.
C2 verb /ˈrʌstɪkeɪt/

rusticate

Meaning
To go to the countryside or to suspend someone from university.
Example
He decided to rusticate in the village to escape the busy city life.
A2 adjective /ˈrʌʃən/

russian

Meaning
relating to Russia, its people, or its language
Example
She is studying the Russian language at university.
C1 noun /rɪˈsɜː.dʒəns/

resurgence

Meaning
An increase or revival after a period of little activity, popularity, or occurrence.
Example
The city saw a resurgence in tourism after the pandemic.
B2 adjective /rɪˈzɪstənt/

resistant

Meaning
not affected by something; able to oppose or withstand
Example
This fabric is resistant to water and stains.
B1 adverb /ˈruːdli/

Rudely

Meaning
in an impolite or discourteous manner
Example
He rudely interrupted the speaker during the presentation.
B2 noun /ˈrest.ləs.nəs/

Restlessness

Meaning
the inability to rest or relax as a result of anxiety or boredom
Example
His restlessness during the long meeting was obvious to everyone.
C1 noun /ˈrɒndɪvuː/

rendezvous

Meaning
a meeting or appointment at an agreed time and place
Example
They arranged a secret rendezvous at the café.
B1 noun riˈækʃən

reaction

Meaning
An action performed or a feeling experienced in response to a situation or event.
Example
The arrests triggered a reaction.
B2 noun ˌrɛstəˈreɪʃən

restoration

Meaning
The process of returning something to its former condition.
Example
The restoration of the forest began after decades of neglect.
C1 noun /ˈriːkɔːrs/

recourse

Meaning
a source of help or protection in a difficult situation
Example
The students had no recourse but to appeal to the principal.
C1 adjective /rɪˈpen.tənt/

Repentant

Meaning
feeling or expressing sincere regret and remorse; sorry for one's actions
Example
The repentant thief returned the stolen money.
B2 noun /ˌriː.ɪnˈfɔːrs.mənt/

reinforcement

Meaning
Strengthening or supporting something, especially behavior or learning.
Example
Positive reinforcement helps in learning.
B1 noun rɪˈsɜː.tʃəz

researchers

Meaning
People who study and investigate to discover new information or facts.
Example
Researchers are working on innovative solutions.
B1 verb /rɪˈflekt/

reflect

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

receptive

Meaning
Willing to listen to or accept new ideas, suggestions, or experiences.
Example
She was receptive to feedback from her colleagues.
B1 noun /ˈrɛzɪdəns/

residence

Meaning
a place where someone lives; a home or dwelling
Example
He recently moved to a new residence near the city center.
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.
B2 noun/verb /rɪˈmɑːrk/

remark

Meaning
something that is said; a comment
Example
She made a remark about the weather.
C2 noun/adjective /rɪˈmɒnstrənt/

remonstrant

Meaning
A person who makes a forceful protest (noun); protesting or objecting (adjective).
Example
He was a remonstrant voice in the assembly.
C1 adjective /ˈrʌs.tɪk/

Rustic

Meaning
simple and unsophisticated; relating to rural areas
Example
The rustic cottage had wooden beams and a thatched roof.
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 noun /rɪˈdʒɔɪsɪŋ/

rejoicing

Meaning
The action of showing great joy or happiness
Example
There was much rejoicing after the victory.
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.
A2 verb /rɪˈlæks/

relax

Meaning
to make or become less tense or anxious; to rest
Example
After a long day, she likes to relax with a good book.
A2 adverb /ˈrɑː.ðər/

Rather

Meaning
to some extent; instead; preferably
Example
I would rather stay home than go to the party.
C2 adjective /ˈruːbɪkənd/

rubicund

Meaning
Having a healthy reddish complexion.
Example
The old man’s rubicund face showed he was in good health.
B2 adjective /ˈrest.ləs/

Restless

Meaning
unable to rest or relax; constantly moving or fidgeting
Example
The child was restless during the long car journey.
B1 noun /ˈreɪn.boʊ/

Rainbow

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.
C1 noun /ˈrɒstrəm/

rostrum

Meaning
A raised platform for speakers, performers, or leaders.
Example
The politician delivered a speech from the rostrum.
B1 noun /ˈrɛntəl/

rental

Meaning
an arrangement in which something is rented, or the amount paid for renting
Example
The car rental was more expensive than we expected.
B1 verb /rɪˈdʒekt/

reject

Meaning
to refuse to accept or consider something
Example
The committee decided to reject the proposal.
B2 noun /ˈreɪ.zɪnz/

Raisins

Meaning
dried grapes, often used in cooking and baking
Example
She added raisins to the oatmeal cookies for extra sweetness.
B2 adjective /rɪˈlaɪ.ənt/

reliant

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

recapture

Meaning
To take back or regain possession of something.
Example
The army managed to recapture the lost territory.
B1 adjective ˈriː.dʒən.əl

regional

Meaning
Relating to or characteristic of a region.
Example
Regional hubs support localized industries.
C1 adjective /ˈreɡ.jʊ.lə.tər.i/

Regulatory

Meaning
Having the power to control or govern something through rules and regulations.
Example
The government enforces regulatory policies for financial stability.
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.
B2 noun /ˈreɪ.dɑːr/

Radar

Meaning
a system for detecting the presence, direction, distance of aircraft, ships by sending out radio waves
Example
The radar detected an unknown aircraft approaching the base.
C2 noun /ˈrʊkəri/

rookery

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.
C2 adjective /rɪˈkæl.sɪ.trənt/

recalcitrant

Meaning
Having an obstinately uncooperative attitude toward authority or discipline.
Example
The recalcitrant student refused to follow rules.
C2 noun /ˈrɪp.lɪt/

ripplet

Meaning
a small or tiny ripple
Example
Tiny ripplets appeared on the lake as the fish moved.
C2 adjective /rɪˈmɪs/

remiss

Meaning
Negligent in performing a duty or responsibility.
Example
The manager was remiss in not checking the financial reports carefully.
B2 adjective /ˈrʌs.ti/

Rusty

Meaning
affected by rust; out of practice; impaired by lack of recent practice
Example
My piano skills are rusty after not playing for years.
B1 noun roʊps

ropes

Meaning
A length of thick strong cord made by twisting together strands of hemp, sisal, nylon, or similar material.
Example
The ropes were tied securely to lift the heavy load.
C1 verb /rɪˈsɪprəˌkeɪt/

reciprocate

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.
C1 adjective /rɪˈpʌl.sɪv/

Repulsive

Meaning
extremely unpleasant; causing strong dislike or disgust
Example
The smell of rotten eggs was absolutely repulsive.
C2 noun /rɪˈvaɪlər/

reviler

Meaning
a person who criticizes or insults others abusively
Example
He was known as a reviler of all who opposed him.
C2 adjective /ˈruːnɪk/

runic

Meaning
relating to or consisting of runes; mysterious or magical
Example
The old stone had strange runic carvings on it.
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 /rɪˈpɛlənt/

repellent

Meaning
Able to drive away something, especially insects or unpleasant things; causing disgust or distaste.
Example
This cream is highly effective as a mosquito repellent.
C1 adjective /ˈrɛtroʊˌɡreɪd/

retrograde

Meaning
moving backward or returning to a worse condition
Example
The policy was seen as a retrograde step for human rights.
A2 verb /rɪˈmaɪnd/

remind

Meaning
to cause someone to remember something
Example
Please remind me to call her tomorrow.
A2 noun /rɪˈleɪ.ʃən.ʃɪp/

Relationship

Meaning
the way two people or groups feel and behave towards each other; a connection between two things
Example
They have a very close relationship.