deluge
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C1 noun /ˈdɛljuːdʒ/

deluge

Meaning
A severe flood; an overwhelming quantity of something.
Example
The town was hit by a deluge of rain in just a few hours.
C1 noun /ədˈhɪərənt/

adherent

Meaning
a person who supports or follows a particular belief, cause, or leader
Example
He is a strong adherent of democratic values.
C1 noun/verb /ˈdiːkɔɪ/

decoy

Meaning
something or someone used to lure or mislead
Example
The hunters used a wooden duck as a decoy.
C1 noun səˈfɪʃənsi

sufficiency

Meaning
The condition of being adequate or enough; adequacy.
Example
The sufficiency of food supply is critical for survival.
C1 noun ˌdɪs.ɪnˈfek.ʃən

disinfection

Meaning
The process of destroying harmful microorganisms to prevent infection.
Example
Kitchen appliances require frequent disinfection.
C1 adjective /əˈpriː.ʃə.bəl/

Appreciable

Meaning
noticeable; significant; considerable in amount
Example
There was an appreciable improvement in his test scores.
C1 verb /əˈmæs/

amass

Meaning
to gather together or accumulate over a period of time
Example
He managed to amass a fortune through wise investments.
C1 verb /ɪnˈkɜːr/

incur

Meaning
To bring upon oneself something undesirable, usually as a result of actions.
Example
He incurred a fine for parking in the wrong place.
C1 adjective /kənˈsɜːrtɪd/

concerted

Meaning
done with great effort, planned and performed together by multiple people
Example
The workers made a concerted effort to improve conditions.
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.
C1 adjective, noun /rɪˈsiːvəbl/

receivable

Meaning
Money that is owed to a company and is expected to be paid.
Example
The company's receivables increased significantly this quarter.
C1 verb /dɪˈɡreɪd/

degrade

Meaning
To lower in dignity, quality, or value; to treat with disrespect or to deteriorate.
Example
Harsh words can degrade a person's confidence.
C1 verb /ɪmˈploʊd/

implode

Meaning
To collapse or burst inward violently.
Example
The old building imploded during the demolition.
C1 adjective /prɪˈpɒstərəs/

preposterous

Meaning
completely ridiculous or absurd; contrary to reason or common sense
Example
The idea that pigs could fly is preposterous.
C1 noun /dɪˌpriː.ʃiˈeɪ.ʃən/

depreciation

Meaning
A reduction in the value of an asset with the passage of time, due to wear and tear.
Example
The car's depreciation rate is high after five years.
C1 adjective /wɒn/

wan

Meaning
looking pale or sickly; lacking color or vitality
Example
After the long illness, his face looked wan and tired.
C1 noun ˌpraɪɔːrɪtaɪˈzeɪʃən

prioritization

Meaning
The action or process of deciding the relative importance or urgency of things.
Example
Effective prioritization ensures resources are used efficiently.
C1 noun ɪnˈflɛk.ʃən

inflection

Meaning
The change in pitch or tone of voice when speaking for emphasis.
Example
His inflection kept the audience engaged.
C1 noun ˈmæŋɡroʊv ˈfɒrɪst

Mangrove Forest

Meaning
A coastal forest ecosystem characterized by salt-tolerant trees and shrubs that grow in intertidal zones.
Example
Sundarbans is the world's largest mangrove forest.
C1 noun /rɪˈflɛktər/

reflector

Meaning
A surface or device that reflects light, heat, or sound, often used to direct beams or improve visibility.
Example
The cyclist attached a red reflector to the back of his bike for safety.
C1 noun /sərˈveɪər/

surveyor

Meaning
A person who measures and maps land, buildings, or other features.
Example
The surveyor measured the land for construction.
C1 adjective /ˌsɛrənˈdɪpɪtəs/

serendipitous

Meaning
Occurring or discovered by chance in a happy or beneficial way.
Example
Their meeting at the café was purely serendipitous.
C1 phrase ˌkæt.əˈɡɒr.ɪ.kəl.i rɪˈfjuː.tɪd

categorically refuted

Meaning
Completely and absolutely denied or disproved.
Example
The claims were categorically refuted by officials.
C1 adjective /ˈəʊnərəs/

onerous

Meaning
involving a great deal of effort, difficulty, or burden
Example
Fulfilling the contract proved to be an onerous task for the company.
C1 adjective /əˈniːmɪk/

anemic

Meaning
Suffering from anemia; lacking in vitality, strength, or color.
Example
The doctor prescribed iron supplements for her anemic condition.
C1 noun /wedʒ/

Wedge

Meaning
a triangular piece of wood or metal used for splitting or securing; a piece of cheese or cake
Example
He used a wooden wedge to split the log into smaller pieces.
C1 adjective /ˈɒm.ɪ.nəs/

Ominous

Meaning
giving the impression that something bad will happen; threatening; foreboding
Example
The dark clouds looked ominous before the storm.
C1 adjective /ˈsɪnləs/

Sinless

Meaning
free from sin; pure and innocent; without moral fault
Example
The innocent child appeared sinless in her pure white dress.
C1 adjective /ʌnˈkɒm.prə.maɪ.zɪŋ/

Uncompromising

Meaning
unwilling to change one's views or to agree about something; showing an unwillingness to make concessions to others
Example
He was uncompromising in his demand for a full apology.
C1 adjective ˈkwɒn.tɪ.faɪ.ə.bəl

quantifiable

Meaning
Able to be expressed or measured as a quantity; capable of being counted or calculated.
Example
The impact of the project is quantifiable.
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 adjective /ʌnˈfɔːltərɪŋ/

unfaltering

Meaning
Steady and resolute; not weakening or hesitating
Example
She continued with unfaltering determination.
C1 verb /rænt/

rant

Meaning
to speak or shout in an angry, uncontrolled way
Example
He ranted about the unfair treatment at work.
C1 adjective /ˈmaɪzərli/

miserly

Meaning
Unwilling to spend money; stingy.
Example
She lived a miserly life, refusing to buy anything new.
C1 noun /ˈhæŋ.ər/

Hangar

Meaning
a large building with extensive floor area, typically for housing aircraft; an aircraft shelter
Example
The airplane was stored safely in the hangar during the severe thunderstorm.
C1 noun /θiˈɒlədʒi/

theology

Meaning
The study of the nature of God and religious beliefs.
Example
She is pursuing a degree in theology at the university.
C1 noun /ˌnoʊtəˈraɪəti/

notoriety

Meaning
The state of being famous or well-known for something bad.
Example
The criminal gained notoriety for his daring escapes.
C1 adjective /ˈnæs.ənt/

nascent

Meaning
Emerging, developing, or in the early stages of formation
Example
The nascent technology is revolutionizing industries.
C1 adjective /ˈmɑːr.dʒɪ.nəl/

Marginal

Meaning
relating to or situated at the edge; minimal; slight
Example
The marginal improvement in sales was barely noticeable.
C1 noun (plural of fungus) /ˈfʌndʒaɪ/

fungi

Meaning
a group of spore-producing organisms such as mushrooms, molds, and yeasts
Example
Fungi play an important role in breaking down organic matter in nature.
C1 adjective /ˌkɒnsɪˈkwɛnʃəl/

consequential

Meaning
Having important or significant consequences; resulting from something.
Example
The meeting was consequential for the future of the project.
C1 adjective /ɪnˈflɛksəbl/

inflexible

Meaning
Not able to bend or change; unwilling to change ideas or behavior.
Example
His inflexible attitude made negotiations difficult.
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 noun /ˌmʌltɪˈplɪsɪti/

multiplicity

Meaning
A large number or variety of something.
Example
The project faced a multiplicity of challenges.
C1 noun /trentʃ/

Trench

Meaning
a long, narrow ditch; a deep furrow in the ground, especially one used for military defense
Example
The soldiers dug a trench for protection during the battle.
C1 adjective /ɡlʌm/

Glum

Meaning
sad; dejected; downcast; gloomy
Example
He looked glum after hearing the bad news.
C1 noun /ɑːrˈmɑːdə/

armada

Meaning
A large fleet of warships.
Example
The Spanish Armada sailed against England in 1588.
C1 noun /ˈtoʊɡə/

toga

Meaning
A loose outer garment worn in ancient Rome, typically draped over the shoulders and body.
Example
The senator wore a white toga during the ceremony.
C1 noun /ˈæd.və.ser.i/

adversary

Meaning
One's opponent in a contest, conflict, or dispute.
Example
The boxer faced a strong adversary in the ring.
C1 noun /ˈdɪsɪdənt/

dissident

Meaning
A person who opposes official policy, especially that of an authoritarian state.
Example
The dissident was arrested for speaking against the government.
C1 noun /ˈrɛz.ə.nəns/

resonance

Meaning
A deep, reverberating sound or a quality of evoking response.
Example
His speech had a deep resonance with the audience.
C1 adjective + noun ʌnˈpresɪdentɪd ˈnɒlɪdʒ

unprecedented knowledge

Meaning
Information or understanding that has never been obtained or achieved before.
Example
Artemis will provide unprecedented knowledge about the solar system.
C1 noun /ɪɡˈzuːbərəns/

exuberance

Meaning
the quality of being full of energy, excitement, and cheerfulness
Example
Her exuberance made the whole team feel motivated.
C1 verb /ˈkwentʃɪŋ/

quenching

Meaning
The act of satisfying thirst or extinguishing something like fire.
Example
Drinking cold water was quenching her thirst.
C1 noun /blɒˈkeɪd/

Blockade

Meaning
an act or means of sealing off a place to prevent goods or people from entering or leaving
Example
The naval blockade prevented supplies from reaching the port.
C1 noun ˌflʌk.tʃuˈeɪ.ʃən

fluctuation

Meaning
An irregular rising and falling in number or amount; a variation.
Example
The stock market experiences frequent fluctuation.
C1 adjective /ˌtɒpsi ˈtɜːvi/

topsy-turvy

Meaning
in a state of confusion, disorder, or upside down
Example
The sudden announcement left the office in a topsy-turvy state.
C1 noun /ˈkʌn.stə.bəl/

constable

Meaning
a police officer of the lowest rank
Example
The constable directed traffic at the busy intersection.
C1 noun /naɪˈiːvteɪ/

naivete

Meaning
The quality of being naive; lack of experience, wisdom, or judgment.
Example
His naivete made him an easy target for manipulation.
C1 adjective /ˈɔːrdɪnəl/

ordinal

Meaning
Relating to the order or position of something in a sequence (first, second, third, etc.).
Example
The ordinal number 'third' indicates position in a sequence.
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 noun /ˌdʒʊə.rɪsˈdɪk.ʃən/

Jurisdiction

Meaning
the official power to make legal decisions and judgments; the extent of this power
Example
This case falls under the jurisdiction of the federal court.
C1 noun /ˈblʌd.ʃed/

Bloodshed

Meaning
the killing or wounding of people, typically in large numbers during a conflict
Example
The peace treaty was signed to prevent further bloodshed.
C1 adjective /kɑːrˈnɪv.ər.əs/

Carnivorous

Meaning
feeding on other animals; meat-eating
Example
Lions are carnivorous animals that hunt other animals for food.
C1 adjective /ˈkoʊvərt/

covert

Meaning
hidden, secret, or not openly acknowledged
Example
The spy conducted a covert operation behind enemy lines.
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, verb /bʌldʒ/

bulge

Meaning
A swelling or protruding part; to swell outward or protrude.
Example
The bag began to bulge with too many books inside.
C1 adjective /ˌsuː.pəˈsɒn.ɪk/

Supersonic

Meaning
faster than the speed of sound; relating to speeds greater than the speed of sound
Example
The supersonic jet broke the sound barrier.
C1 noun /ˌɪntərˈmɪʃən/

intermission

Meaning
A pause or break, especially during a performance or event.
Example
The play had a twenty-minute intermission.
C1 verb /ˈnɪbəl/

nibble

Meaning
to take small bites of food
Example
The rabbit nibbled on a carrot.
C1 noun /ˈhɑː.mɪdʒ/

Homage

Meaning
special honor or respect shown publicly; tribute paid to someone in recognition of their merit
Example
The memorial service was a touching homage to the brave soldiers who sacrificed their lives.
C1 noun /ˈtwɪstər/

twister

Meaning
A tornado or something that twists; also refers to a challenging tongue twister.
Example
The twister destroyed several houses in the village.
C1 noun ˈrez.ɪ.djuːz

residues

Meaning
A small amount of something that remains after the main part has gone or been taken or used.
Example
The burning process leaves no harmful residues.
C1 adjective /ˈviːəmənt/

Vehement

Meaning
showing strong feeling; forceful; passionate; intense
Example
She gave a vehement denial of the accusations.
C1 noun /ˈmaʊθ.fʊl/

mouthful

Meaning
the amount of food or drink that fills the mouth, or a long and difficult word or phrase
Example
He took a big mouthful of water after the run.
C1 noun /tɑːrˈpɔːlɪn/

tarpaulin

Meaning
A large sheet of strong, flexible, water-resistant material used for covering or protecting things.
Example
The workers used a tarpaulin to cover the construction materials from rain.
C1 noun /ˌbaɪˈlæt.ər.əl nɪˌɡəʊ.ʃiˈeɪ.ʃənz/

bilateral negotiations

Meaning
Negotiations or discussions between two parties, typically countries or organizations.
Example
Bilateral negotiations resolve disputes.
C1 noun /dɪˌlɪb.əˈreɪ.ʃənz/

deliberations

Meaning
Careful consideration and discussion before making decisions.
Example
Deliberations on sustainability continued for hours.
C1 adjective /ˈvɛnəˌreɪtɪd/

venerated

Meaning
respected and admired deeply
Example
The venerated professor was honored with an award.
C1 noun /ˈdeɪtəm/ or /ˈdætəm/

datum

Meaning
a single piece of information; a fact used as a basis for reasoning or calculation
Example
Each datum in the survey was carefully analyzed.
C1 noun /ˌvɜːrtʃuˈoʊsoʊ/

virtuoso

Meaning
A person highly skilled in music, art, or another artistic pursuit.
Example
The pianist is a true virtuoso, captivating audiences worldwide.
C1 noun /ˈʌndərˌstʌdi/

understudy

Meaning
An actor who learns another's role to act as a replacement if needed.
Example
The understudy performed when the lead actor fell ill.
C1 verb /ˈæmbʊʃ/

ambush

Meaning
To attack suddenly and unexpectedly from a hidden position.
Example
The soldiers planned to ambush the enemy at dawn.
C1 adjective /ˈpent ʌp/

Pent-up

Meaning
suppressed; restrained; confined
Example
He had pent-up anger that finally exploded.
C1 adjective /ɪnˈtjuː.ɪ.tɪv/

intuitive

Meaning
Based on instinctive understanding rather than reasoning.
Example
The software has an intuitive design that makes it easy to use.
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 /ˈræftər/

rafter

Meaning
One of the sloping beams that supports a roof.
Example
The old barn’s rafters were exposed.
C1 verb /ˈkælɪˌbreɪt/

calibrate

Meaning
To adjust or mark something so it can be used accurately; to standardize.
Example
The technician calibrated the machine before starting the experiment.
C1 noun /ˈsæl.mən fɪʃ / ˈroʊ.huː/

Salmon fish / Rohu

Meaning
a freshwater fish popular in South Asian cuisine; also refers to salmon which is a different species
Example
Rohu fish is commonly prepared with spices in Bengali households.
C1 noun /noʊz rɪŋ/

Nose ring

Meaning
a piece of jewelry worn through a piercing in the nose
Example
She got a small gold nose ring for her birthday.
C1 verb /ɪmˈplɔːr/

implore

Meaning
To beg someone earnestly or desperately to do something.
Example
She implored him to stay with her.
C1 noun /ˈbed sted/

Bed stead

Meaning
the framework of a bed; a bed frame without bedding
Example
The wooden bed stead was very sturdy.
C1 noun /ˈsuːtər/

suitor

Meaning
a man who pursues a relationship with a woman, often with the intent to marry
Example
She had many suitors vying for her attention.
C1 noun /ˌdaɪəˈrɑːmə/

diorama

Meaning
a three-dimensional model representing a scene, often with miniature figures
Example
The museum displayed a diorama of an ancient village.
C1 verb /əˈpɛnd/

append

Meaning
to add something as an attachment or supplement, usually at the end of a document or list
Example
She decided to append a note to the end of the report.
C1 adjective /prəˈfjuːs/

profuse

Meaning
existing or given in large amounts; abundant
Example
He offered profuse thanks for their timely help.
C1 noun /kɔːrs flaʊər/

Course flour

Meaning
coarsely ground flour with larger particles, typically used for baking bread
Example
She used course flour to make homemade bread with a rustic texture.
C1 adjective /ɪnˈkɒŋɡruəs/

incongruous

Meaning
Not fitting in with or suitable for the surroundings.
Example
His jokes were incongruous during the serious meeting.
C1 noun ˌæp.əˈreɪ.təs

apparatus

Meaning
The technical equipment or machinery needed for a particular activity or purpose.
Example
The apparatus was designed to be eco-friendly.
C1 adjective /əˈdɒptɪv/

adoptive

Meaning
relating to the adoption of a child or the act of taking something as one’s own
Example
She grew up in a loving adoptive family.
C1 noun /ɪnˈsek.tɪ.saɪd/

Insecticide

Meaning
a substance used for killing insects; a chemical pesticide that targets insects
Example
The farmer sprayed insecticide on his crops to protect them from harmful bugs.
C1 verb /reɪv/

rave

Meaning
to speak or write about something with great enthusiasm or admiration
Example
Critics rave about the new movie.
C1 preposition /əˈtɒp/

atop

Meaning
on the top of something
Example
A flag was placed atop the tower.
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.
C1 verb /ˈkʌl.mɪ.neɪt/

culminate

Meaning
To reach the final or climactic stage of a process or activity.
Example
Years of hard work culminated in his success.
C1 adjective /rɪˈsɜːrdʒənt/

resurgent

Meaning
Becoming strong, active, or popular again.
Example
The resurgent economy gave hope to many businesses.
C1 noun ˈkiː.stəʊn ˈspiː.ʃiːz

keystone species

Meaning
A species on which other species in an ecosystem largely depend, such that if it were removed the ecosystem would change drastically.
Example
Wolves are a keystone species that regulate prey populations.
C1 noun /ˌsɛlf ɪnˈdʌldʒəns/

self-indulgence

Meaning
The act of allowing oneself to enjoy pleasures or desires excessively.
Example
His weekend of self-indulgence included eating sweets and watching movies nonstop.
C1 noun /ˈprəʊ.lɒɡ/

prologue

Meaning
an introduction to a book, play, or event
Example
The novel begins with a short prologue set in the past.
C1 noun /ˈkæviˌæt/

caveat

Meaning
a warning or condition to be considered before taking action
Example
The proposal was accepted with one caveat.
C1 adjective prəˈtræk.tɪd

protracted

Meaning
Lasting for a long time or longer than expected or usual.
Example
The negotiations were protracted over months.
C1 adjective /ʌnˈvaɪəbl/

unviable

Meaning
Not capable of working successfully; not feasible or practical.
Example
The project was deemed unviable due to high costs.
C1 noun kəmˈpleɪ.sən.si

complacency

Meaning
Excessive self-satisfaction with one's achievements that can hinder progress.
Example
His complacency led to a decline in his performance.
C1 noun ˈdɪk.ʃən

diction

Meaning
The style of pronunciation and word choice in speaking or writing.
Example
A strong diction enhances communication skills.
C1 adjective /fəˈnætɪkəl/

fanatical

Meaning
showing extreme enthusiasm or obsession
Example
She has a fanatical interest in collecting vintage stamps.
C1 noun /ˈjuːlədʒi/

eulogy

Meaning
A speech or piece of writing that praises someone, especially after their death.
Example
Her brother delivered a heartfelt eulogy at the funeral.
C1 adjective /sɪmˈfɒnɪk/

symphonic

Meaning
relating to or having the character of a symphony or symphony orchestra
Example
The concert featured a symphonic masterpiece.
C1 noun məˈnɒp.əl.i

monopoly

Meaning
The exclusive possession or control of the supply of or trade in a commodity or service.
Example
The company has a monopoly on electric car production.
C1 verb, adjective, noun /spruːs/

spruce

Meaning
to make neat or tidy in appearance; also refers to an evergreen tree
Example
He spruced up his room before the guests arrived.
C1 adjective /oʊˈvɜːrt/

overt

Meaning
Done or shown openly; not hidden or secret.
Example
There was an overt display of hostility between the rivals.
C1 adjective /əˈblɪɡ.ə.tɔː.ri/

obligatory

Meaning
Required by a legal, moral, or other rule; compulsory.
Example
Wearing a seatbelt is obligatory in most countries.