credential
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C1 noun /krɪˈden.ʃəl/

credential

Meaning
a qualification, achievement, or aspect of a person's background used to indicate suitability for something
Example
She presented her credentials before starting the new job.
C1 noun /juːˈfɔː.ri.ə/

euphoria

Meaning
A feeling or state of intense excitement and happiness; elation.
Example
Winning the championship brought a sense of euphoria.
C1 noun prɪˌsɪp.ɪˈteɪ.ʃən

precipitation

Meaning
Rain, snow, sleet, or hail that falls to or condenses on the ground.
Example
Annual precipitation levels are decreasing.
C1 noun ˌhaɪ.drəˈlɒdʒ.ɪ.kəl ˈsaɪ.kəl

hydrological cycle

Meaning
The cycle of processes by which water circulates between the earth's oceans, atmosphere, and land.
Example
The hydrological cycle ensures continuous water movement in nature.
C1 noun /ˌpæl.pɪˈteɪ.ʃən/

Palpitation

Meaning
a noticeably rapid, strong, or irregular heartbeat due to agitation or medical condition
Example
She experienced palpitations before her job interview.
C1 noun, verb /ˈkɒmjuːn/

commune

Meaning
Noun: a group of people living together and sharing possessions; Verb: to share one's thoughts or feelings intimately.
Example
She went to the countryside to commune with nature.
C1 verb /ɪnˈθjuːz/

enthuse

Meaning
to express excitement or admiration
Example
She enthused about her trip to Italy.
C1 adjective /ɪˈrɛpərəbəl/

Irreparable

Meaning
impossible to repair or fix; permanent damage that cannot be undone
Example
The accident caused irreparable damage to his spine.
C1 noun /ˈproʊbeɪt/

probate

Meaning
the official proving of a will in a court of law
Example
The family had to go through probate after his death.
C1 noun /ˌɪnkoʊˈhɪrəns/

incoherence

Meaning
The quality of being unclear, confused, or lacking logical connection.
Example
His speech was full of incoherence and difficult to follow.
C1 noun /əˈboʊd/

abode

Meaning
a place of residence; a home
Example
They invited us to their humble abode.
C1 adjective /tɛkˈtɑː.nɪk/

tectonic

Meaning
Relating to the structure of the earth's crust and the large-scale processes that take place within it.
Example
Tectonic movements cause earthquakes and mountain formation.
C1 adjective /ˌmɒnəˈlɪθɪk/

monolithic

Meaning
Massive, uniform, and indivisible; resembling a large single stone or structure.
Example
The company maintained a monolithic structure resistant to change.
C1 noun, adjective, verb /səˈbɔːrdənət/ (noun/adjective), /səˈbɔːrdəˌneɪt/ (verb)

subordinate

Meaning
lower in rank or position; to treat as less important
Example
He manages ten subordinates in his department.
C1 verb, noun /mʊər/

moor

Meaning
As a verb: to tie a ship so that it stays in place. As a noun: open, uncultivated land.
Example
The sailors moored the ship at the dock.
C1 adjective ˈæl.ɡə.rɪ.ðəm drɪv.ən

algorithm-driven

Meaning
Controlled or powered by computer algorithms.
Example
Algorithm-driven systems increase accuracy.
C1 verb /ˈtræŋ.kwɪ.laɪz/

tranquilize

Meaning
to make someone or something calm or less anxious, often by using drugs
Example
The veterinarian had to tranquilize the tiger before moving it.
C1 noun /rɪˈvɜːrʒən/

reversion

Meaning
the act of returning to a previous state or condition
Example
The new policy marked a reversion to traditional methods.
C1 verb /ʃɪə/

shear

Meaning
to cut the wool off a sheep or to cut something with sharp tools like scissors or shears
Example
The farmer will shear the sheep in the spring.
C1 noun /ˈsɔːjər/

Sawyer

Meaning
a person who saws wood, especially as an occupation
Example
The skilled sawyer cut the logs into planks.
C1 verb /səˈfɪstɪkeɪt/

sophisticate

Meaning
to make something more complex or refined; to educate or develop in taste and manners
Example
Traveling abroad helped sophisticate his worldview.
C1 verb /ˈstaɪfəld/

stifled

Meaning
to suppress, hold back, or prevent something from happening
Example
He stifled a laugh during the serious meeting.
C1 adjective /ˈkæni/

canny

Meaning
Having good judgment, especially in business or practical matters; shrewd.
Example
She made a canny investment in real estate.
C1 noun /ˌɔːkʃəˈnɪər/

auctioneer

Meaning
a person who conducts auctions by calling out bids and selling items to the highest bidder
Example
The auctioneer quickly raised the price as bidders competed for the painting.
C1 adjective /loʊθ/

loath

Meaning
reluctant or unwilling to do something
Example
She was loath to admit her mistake in front of everyone.
C1 noun /ɪnˌtɪmɪˈdeɪʃən/

intimidation

Meaning
The action of frightening or threatening someone to make them do something.
Example
The workers reported cases of intimidation by the management.
C1 noun /ˈaɪsətəʊp/

isotope

Meaning
Atoms of the same element with equal number of protons but different numbers of neutrons.
Example
Carbon-14 is a radioactive isotope used in dating fossils.
C1 adjective /æmˈbɪvələnt/

ambivalent

Meaning
Having mixed or contradictory feelings about something or someone.
Example
She was ambivalent about accepting the new job offer.
C1 verb /ʃraʊd/

shroud

Meaning
to cover or hide; to wrap in cloth
Example
The mountain peak was shrouded in mist.
C1 noun /əˈsɛsər/

assessor

Meaning
a person who evaluates or estimates the nature, ability, or quality of something
Example
An external assessor reviewed the project report.
C1 verb /ˈpɜːrsɪkjuːt/

persecute

Meaning
to treat someone cruelly or unfairly, especially because of their religion, race, or beliefs
Example
Many people were persecuted for their faith during that time.
C1 adjective /dɪsˈɪntrəstɪd/

disinterested

Meaning
not influenced by personal interest; impartial or neutral
Example
The judge remained disinterested in the case.
C1 noun /ˈprəʊsiːdz/

proceeds

Meaning
money obtained from an event, activity, or sale
Example
The proceeds from the charity event were donated to the orphanage.
C1 verb /dɪˈpriːʃieɪt/

depreciate

Meaning
to reduce in value over time
Example
Cars tend to depreciate quickly in their first few years.
C1 adjective /ˈwɪst.fəl/

Wistful

Meaning
having a feeling of longing or yearning; melancholy
Example
She gave a wistful smile when remembering her childhood days.
C1 verb /dɪsˈpruːv/

disprove

Meaning
to show that something is false or wrong
Example
The scientist worked hard to disprove the old theory.
C1 adjective /ˌhɑːrdˈhɑːrtɪd/

hard-hearted

Meaning
showing no kindness or sympathy; cruel
Example
The landlord was hard-hearted and refused to help the poor family.
C1 adjective /ˈmænɪfoʊld/

Manifold

Meaning
many and of several different types; multiple; various
Example
The project has manifold benefits for the community.
C1 noun /plæsˈtɪsəti/

plasticity

Meaning
the quality of being easily shaped or molded; adaptability
Example
The brain's plasticity allows it to adapt after injury.
C1 verb /kənˈviːn/

convene

Meaning
to come together or assemble, especially for a meeting or formal gathering
Example
The board will convene tomorrow to discuss the new policy.
C1 noun /ɡruːv/

groove

Meaning
a long narrow cut or depression, or a rhythmic pattern in music
Example
The DJ kept the crowd dancing to the groove.
C1 noun /ɪnˈdɪrmənt/

endearment

Meaning
A word or phrase expressing affection or love.
Example
She whispered a gentle endearment to her child.
C1 adjective /æmˈfɪb.i.əs/

Amphibious

Meaning
able to live both on land and in water; suitable for both land and water operations
Example
The amphibious vehicle can travel on both land and water.
C1 adverb /ˌʌnkənˈvɛnʃənəli/

unconventionally

Meaning
in a way that is not based on or conforming to accepted standards or norms
Example
She dresses unconventionally, mixing bold colors and patterns that surprise everyone.
C1 adjective /juːˈfɔːrɪk/

euphoric

Meaning
Characterized by or feeling intense excitement and happiness.
Example
The fans were euphoric after their team's victory.
C1 noun /ˈtrɪŋkɪt/

trinket

Meaning
a small ornament or piece of jewelry that is not expensive
Example
She bought a little trinket from the beach market as a souvenir.
C1 noun /ˈsɛdətɪv/

sedative

Meaning
A substance that calms the nerves or induces sleep.
Example
The doctor prescribed a sedative to help the patient sleep.
C1 noun /ˈrəʊ.bɒt əˈsɪs.tɪd prəˈsiː.dʒərz/

robot-assisted procedures

Meaning
Medical operations performed with the help of robotic systems to enhance precision and control.
Example
Robot-assisted procedures reduce human error.
C1 verb /ˈɔːstrəˌsaɪz/

ostracize

Meaning
to exclude someone from a group or society; to banish or shun
Example
After the scandal, he was ostracized by his former colleagues.
C1 adjective /ˈneɡ.lɪ.dʒə.bəl/

Negligible

Meaning
so small or unimportant as to be not worth considering; insignificant
Example
The side effects of this medicine are negligible.
C1 verb /rɪˈnɛɡ/

renege

Meaning
to go back on a promise, agreement, or commitment
Example
The company reneged on its promise to increase wages.
C1 noun /ɒpˈtɒmətri/

optometry

Meaning
The practice or profession of examining the eyes and prescribing corrective lenses.
Example
She studied optometry at the university to become an eye specialist.
C1 verb /spɜːr/

spur

Meaning
To encourage or motivate someone to take action.
Example
The teacher's praise spurred him to study harder.
C1 verb /ʃʌn/

Shun

Meaning
to deliberately avoid or stay away from someone or something
Example
He shuns public attention and prefers privacy.
C1 noun /ˈplæn.teɪn ˈflaʊ.ər/

Plantain flower

Meaning
The flower bud of a banana plant, used as a vegetable in cooking
Example
We cooked plantain flower curry for dinner.
C1 verb /ˈwɒb.l̩/

wobble

Meaning
to move unsteadily from side to side; to shake or tremble slightly
Example
The table began to wobble when he leaned on it.
C1 verb /əˈskraɪb/

ascribe

Meaning
To attribute something to a cause, source, or person.
Example
Many scholars ascribe the poem to an unknown author.
C1 verb /sɪˈkluːd/

seclude

Meaning
To keep someone away from other people; to isolate.
Example
The monk chose to seclude himself in the mountains.
C1 adjective /ˌkɒndɪˈsɛndɪŋ/

condescending

Meaning
having or showing an attitude of patronizing superiority
Example
Her condescending tone upset her colleagues.
C1 noun /meɪl treɪn/

Mail train

Meaning
a train that carries mail and postal packages
Example
The mail train departs every evening to deliver letters across the country.
C1 noun /ɪˈrɛlɪvənsi/

irrelevancy

Meaning
the state of being unrelated or unimportant to the matter at hand
Example
The judge dismissed the argument because of its irrelevancy to the case.
C1 adjective /ˈtæŋ.i/

tangy

Meaning
Having a strong, sharp, and pleasantly biting flavor or taste.
Example
The sauce had a tangy flavor that brightened the dish.
C1 adjective /snaɪd/

snide

Meaning
mocking or insulting in an indirect way
Example
He couldn’t resist making a snide comment about her dress.
C1 noun/adjective /ɪˈliːtɪst/

elitist

Meaning
A person who believes that a society should be led by an elite; showing preference for a privileged class.
Example
His elitist attitude made him unpopular among his peers.
C1 verb /brɔɪl/

broil

Meaning
To cook food by direct heat, usually under a grill or over a fire.
Example
She broiled the chicken until it was golden brown.
C1 verb /rɪˈpiːl/

repeal

Meaning
To officially cancel or revoke a law or decision.
Example
The government decided to repeal the outdated law.
C1 verb /ˈkɒŋɡrɪɡeɪt/

congregate

Meaning
to gather together in a group; to assemble
Example
People congregate in the town square every evening.
C1 noun dɪˈtætʃ.mənt

detachment

Meaning
The state of being objective or aloof; not being emotionally involved.
Example
Buddhist philosophy encourages detachment from material desires.
C1 verb /stoʊk/

stoke

Meaning
To add fuel to a fire; to encourage or increase a strong feeling or activity.
Example
The politician’s speech stoked anger among the crowd.
C1 adjective /ʌnˈɒnəd/

unhonoured

Meaning
not respected or given the recognition that is deserved; treated without honor
Example
He felt unhonoured after his years of service were ignored.
C1 verb /ˈdʒʌmbəl/

jumble

Meaning
to mix things together in a confused or untidy way
Example
Don't jumble all the papers together in one pile.
C1 noun /fəˈnætɪsɪzəm/

fanaticism

Meaning
the quality of being fanatical; extreme zeal or obsession
Example
Religious fanaticism can lead to intolerance and conflict.
C1 adjective /ˌeɪsɪˈmɛtrɪk/

asymmetric

Meaning
Not having equal or corresponding parts; lacking symmetry.
Example
The design of the building is asymmetric and unusual.
C1 adjective ˈdɪs.pər.ət

disparate

Meaning
containing elements very different from one another.
Example
Their opinions were disparate, leading to debates.
C1 noun səbˈsɪs.təns

subsistence

Meaning
The action or fact of maintaining or supporting oneself at a minimum level.
Example
Many farmers depend on subsistence agriculture.
C1 noun /blæk sɔːlt/

Black Salt

Meaning
a type of rock salt with a distinctive sulfuric flavor, commonly used in Indian cuisine
Example
Add a pinch of black salt to enhance the flavor of the fruit salad.
C1 noun /ˈnɒnʃələns/

nonchalance

Meaning
A relaxed and calm state, showing lack of concern or interest.
Example
She answered the tough questions with surprising nonchalance.
C1 adjective /ˈɡæl.ənt/

gallant

Meaning
Brave, heroic, or chivalrous.
Example
The gallant firefighter saved the child from the burning building.
C1 adjective /dɪˈspɜːrst/

dispersed

Meaning
Scattered or spread across a wide area.
Example
The dispersed population made it difficult to provide public services.
C1 noun /ˈpɛrəntɪdʒ/

parentage

Meaning
The identity and origins of one's parents; descent or lineage.
Example
Her noble parentage gave her access to the royal court.
C1 noun /diːˌtɒksɪfɪˈkeɪʃən/

detoxification

Meaning
The process of removing toxic substances from a living organism.
Example
Detoxification helps to cleanse the body of harmful substances.
C1 noun /ɪˈlɛk.trəʊ.laɪts/

electrolytes

Meaning
Minerals in body fluids that carry an electric charge and are essential for many bodily functions.
Example
Electrolytes help maintain proper fluid balance in the body.
C1 adjective /ˌeɪsɪˈmɛtrɪkəl/

asymmetrical

Meaning
Having parts that are not the same in size, shape, or arrangement.
Example
She wore an asymmetrical dress that drew everyone’s attention.
C1 adjective, noun, verb /ˈtrɛbəl/

treble

Meaning
triple; consisting of three parts; high-pitched sound in music
Example
The company's profits trebled in just two years.
C1 noun /ˈhɛzɪtəns/

hesitance

Meaning
The quality or state of being reluctant or uncertain.
Example
Her hesitance to speak up delayed the decision.
C1 noun /əˈstuːt.nəs/

astuteness

Meaning
The ability to accurately assess situations or people and turn this to one's advantage.
Example
His astuteness helped in negotiations.
C1 noun /ˈfɛləni/

felony

Meaning
a serious crime, usually punishable by imprisonment for more than one year
Example
He was convicted of a felony and sentenced to ten years in prison.
C1 noun /ˈfɔːrwɜːrd/

foreword

Meaning
a short introduction at the beginning of a book, typically written by someone other than the author
Example
The foreword of the book was written by a famous historian.
C1 noun /ˌnjʊə.roʊ.plæˈstɪs.ɪ.ti/

neuroplasticity

Meaning
The brain's ability to reorganize itself by forming new neural connections throughout life.
Example
Neuroplasticity allows the brain to rewire itself after an injury.
C1 verb, noun /miˈændər/

meander

Meaning
to wander aimlessly or follow a winding course
Example
We meandered through the old streets of the city.
C1 noun /ˈlɛɡɪŋ/

legging

Meaning
tight-fitting stretch pants, typically worn by women for exercise or casual wear
Example
She bought a new pair of black leggings for the gym.
C1 noun /səˈlɪn.ə.t̬i/

salinity

Meaning
The salt content of soil or water, typically measured as a concentration.
Example
The salinity of the ocean varies depending on depth and location.
C1 noun /ˈkeɪ.sɪŋ/

Casing

Meaning
a cover or shell that protects or encloses something
Example
The mechanic removed the engine casing to examine the internal parts.
C1 noun /ˈdʒækˌfruːt/

Jackfruit

Meaning
a large tropical fruit with a spiky exterior and sweet flesh inside
Example
The jackfruit is the largest tree fruit in the world.
C1 verb /skʌlpt/

sculpt

Meaning
to create or shape something by carving or molding
Example
The artist sculpted a beautiful statue from marble.
C1 adjective /ˈkɒnvɛks/

convex

Meaning
curved or rounded outward
Example
The lens has a convex shape to focus light.
C1 adjective /ˈstɔːlwərt/

stalwart

Meaning
Loyal, reliable, and hardworking; strongly built or sturdy.
Example
She has always been a stalwart supporter of the community.
C1 verb /koʊˈhæbɪt/

cohabit

Meaning
To live together, often as partners without being married.
Example
They decided to cohabit before getting married.
C1 noun /əˈseɪlənt/

assailant

Meaning
a person who attacks another
Example
The police arrested the assailant at the scene.
C1 adjective,noun /kənˈtɪn.dʒənt/

contingent

Meaning
dependent on something else; a group of people representing an organization
Example
Attendance is contingent on prior registration. / A contingent of students attended the conference.
C1 verb ɪˈmɜːrs

immerse

Meaning
To involve oneself deeply in a particular activity or interest; to surround completely.
Example
Immerse yourself in the new language.
C1 verb /əˈseɪl/

assail

Meaning
to attack violently, either physically or with words
Example
The politician was assailed with difficult questions.
C1 verb /ˌriːˈvæmp/

revamp

Meaning
To give a new and improved form, structure, or appearance to something.
Example
The company decided to revamp its website for a modern look.
C1 noun /ˈfɔɪeɪr/

foyer

Meaning
An entrance hall or lobby in a building.
Example
The guests waited in the hotel foyer before checking in.
C1 noun /ɛkˈspeɪtriət/

expatriate

Meaning
a person who lives outside their native country
Example
Many expatriates gather in the city’s international community.
C1 adjective /kənˈteɪ.dʒəs/

Contagious

Meaning
likely to spread to and affect others; infectious
Example
Her laughter is contagious and makes everyone smile.
C1 /ˈɡrævəl/

gravel

Meaning
Small stones and pebbles, often mixed with sand, used for paths, roads, and construction.
Example
The driveway was covered with gravel.
C1 adjective /ˈpleɪntɪv/

plaintive

Meaning
expressing sadness or sorrow
Example
He raised a plaintive cry for help.
C1 noun /ˈkoʊhɔːrts/

cohorts

Meaning
Groups of people who share a common feature or experience.
Example
Researchers compared the health outcomes of different cohorts.
C1 noun /ˈiːkwɪnɒks/

equinox

Meaning
The time or date when day and night are of equal length, occurring twice a year.
Example
The spring equinox marks the beginning of longer days.
C1 noun /ˈstɛnsəl/

stencil

Meaning
A thin sheet of material with a design cut out, used to produce the design on the surface below by applying paint or ink through the cut-out holes.
Example
The artist used a stencil to paint identical stars on the wall.
C1 noun ˌsteɪbəlaɪˈzeɪʃən

stabilization

Meaning
The process of making or becoming stable.
Example
The stabilization of the structure was essential after the earthquake.
C1 noun /ˈbʊl.ək/

Bullock

Meaning
a young bull; a castrated bull used for farm work
Example
The farmer used a bullock to plow the field.
C1 adjective /ˌkætəˈklɪzmɪk/

cataclysmic

Meaning
Relating to or denoting a violent natural event or upheaval.
Example
The war had cataclysmic effects on the nation's economy.
C1 verb /ˈdʒɒsl/

jostle

Meaning
to push, elbow, or bump against someone roughly, typically in a crowd
Example
The fans jostled each other to get closer to the stage.
C1 adjective /dɪˈstrɔːt/

distraught

Meaning
extremely upset and anxious, often to the point of being unable to think clearly
Example
She was distraught after losing her pet.
C1 noun ˌdaɪvɜːsɪfɪˈkeɪʃən

diversification

Meaning
The practice of spreading investments across various assets or sectors to reduce risk.
Example
Diversification helps to reduce investment risk.
C1 adjective əsˈtjuːt

astute

Meaning
Having or showing an ability to accurately assess situations or people and turn this to one's advantage.
Example
His astute observations helped solve the complex problem.
C1 noun /ˈloʊ.fər/

Loafer

Meaning
a person who avoids work or effort; an idler
Example
Don't be a loafer, help us with the work.
C1 verb /wɑːft/

waft

Meaning
to move gently through the air, carried by a breeze
Example
The smell of fresh bread wafted through the kitchen.
C1 verb /ˈbæfəl/

baffle

Meaning
to confuse; to be too difficult to understand
Example
The math problem baffles me completely.