alkali
All a b c d e f g h i j k l m n o p q r s t u v w x y z
All CEFR A1 A2 B1 B2 C1 C2
Content locale
EN English BN Bengali HI Hindi ES Spanish FR French DE German RU Russian ZH Chinese JA Japanese
All Vocabulary Cards All Vocabularies
C1 noun /ˈæl.kə.laɪ/

alkali

Meaning
a soluble base substance, typically with a pH greater than 7, that neutralizes acids
Example
Soap contains alkali which helps remove grease.
C1 verb /ɪnˈʃraɪn/

enshrine

Meaning
to preserve or cherish something as sacred or important
Example
The constitution enshrines the right to freedom of speech.
C1 noun /ɪˈnɪɡ.mə/

enigma

Meaning
A person or thing that is mysterious, puzzling, or difficult to understand.
Example
Life remains an enigma to many.
C1 adjective ˌsʌbˈlɪm.ɪ.nəl

subliminal

Meaning
Existing or operating below the threshold of consciousness; perceived by or affecting someone's mind without their being aware of it.
Example
Advertisements often have subliminal messages.
C1 adjective /ɪɡˈzɔːr.bɪ.tənt/

exorbitant

Meaning
Unreasonably high in price or cost; excessive.
Example
The hotel charged an exorbitant price for a basic room.
C1 noun /ˌstætɪˈstɪʃən/

statistician

Meaning
A person who specializes in collecting, analyzing, and interpreting numerical data.
Example
The statistician presented the survey results with great clarity.
C1 verb /ˌkaʊntərˈækt/

counteract

Meaning
to act against something in order to reduce its effect
Example
The medicine helps counteract the side effects of the treatment.
C1 noun /wʊd ˈæp.əl/

Wood Apple

Meaning
a hard-shelled tropical fruit with aromatic pulp used in beverages and medicine
Example
The wood apple has a hard shell but sweet pulp inside.
C1 noun /ˈseɪɑːns/

seance

Meaning
A meeting where people attempt to communicate with the spirits of the dead.
Example
They held a seance to contact their late grandmother.
C1 noun /flʌks/

flux

Meaning
continuous change or movement; the rate of flow of something
Example
The company was in a state of constant flux during the reorganization.
C1 verb ɪˈnɪʃɪeɪtɪd

initiated

Meaning
Caused a process or action to begin; started something.
Example
The project was initiated to enhance marine biodiversity.
C1 adjective /dɪˈmɪnjətɪv/

diminutive

Meaning
extremely or unusually small
Example
Despite his diminutive size, he was a powerful leader.
C1 noun /ˈzɪn.i.ə/

Zinnia

Meaning
A colorful garden flower with daisy-like blooms, popular for its vibrant colors and long-lasting nature
Example
The garden was filled with bright zinnias in various colors.
C1 noun /ˌdɛrɪˈveɪʃən/

derivation

Meaning
The origin or development of something from a source.
Example
The derivation of the word comes from Latin.
C1 noun /ˈen.mə.ti/

Enmity

Meaning
a state or feeling of active opposition or hostility
Example
The enmity between the two families lasted for generations.
C1 adjective /məˈləʊ.di.əs/

Melodious

Meaning
having a pleasant musical sound; tuneful
Example
Her melodious voice captivated the entire audience.
C1 verb /ˈdʒɪtər/

jitter

Meaning
to shake or tremble slightly, often from fear, nervousness, or excitement
Example
He began to jitter nervously before giving his speech.
C1 noun /ˈwɔː.tər ˈspɪn.ɪtʃ/

Water Spinach

Meaning
A semi-aquatic leafy vegetable with hollow stems, popular in Asian cuisine
Example
Water spinach grows well in wet soil.
C1 verb /dɪˈspɜːrs/

disperse

Meaning
To scatter or spread widely in different directions.
Example
The police used tear gas to disperse the crowd.
C1 verb /bloʊt/

bloat

Meaning
to swell or cause to swell, often due to fluid or gas
Example
Eating too much junk food can bloat your stomach.
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 verb /rɒmp/

romp

Meaning
to play or move in a lively, carefree, and energetic way
Example
The children romped happily in the garden.
C1 adjective /həˈmɑː.dʒə.nəs/

homogenous

Meaning
Similar or uniform in nature; often used interchangeably with 'homogeneous'.
Example
The class was made up of a homogenous group of students.
C1 verb /ˈheɪsən/

hasten

Meaning
To move or act quickly; to cause something to happen sooner.
Example
He hastened to finish his work before the deadline.
C1 noun /oʊˈbɪt.ʃu.er.i/

Obituary

Meaning
a notice of someone's death published in a newspaper; biographical account of deceased person
Example
The newspaper published his obituary yesterday.
C1 verb /ˈbɒɡəl/

boggle

Meaning
to overwhelm or confuse; to be astonished or puzzled by something
Example
The complexity of the puzzle boggled his mind.
C1 adjective /ˈbrɪtl/

brittle

Meaning
easily broken or cracked; hard but liable to break
Example
The glass was so brittle that it cracked easily.
C1 noun /rɪdʒ/

ridge

Meaning
a long, narrow hilltop, mountain range, or raised strip
Example
We walked along the mountain ridge.
C1 noun /dɪsˈɒn.ər/

Dishonour

Meaning
a state of shame or disgrace; lack of honor or integrity; failure to fulfill obligations
Example
Breaking his promise brought dishonour to his name and family legacy.
C1 adjective /maɪˈkroʊ.bi.əl/

microbial

Meaning
Related to bacteria, fungi, and other microscopic organisms.
Example
Microbial activity in the soil improves fertility.
C1 noun /ˈhɔːl.mɑːrk/

hallmark

Meaning
a typical characteristic or feature of someone or something
Example
Honesty is the hallmark of a good leader.
C1 adjective /ˈɑːr.dənt/

Ardent

Meaning
very enthusiastic; passionate; fervent
Example
She is an ardent supporter of environmental conservation.
C1 verb /kənˈkɜːr/

concur

Meaning
To agree with someone or something.
Example
I concur with your opinion on this matter.
C1 noun /fɪˈlæn.θrə.pɪst/

philanthropist

Meaning
a person who seeks to promote the welfare of others, especially by donating money to good causes
Example
The philanthropist donated millions to build schools in rural areas.
C1 verb /ˈpoʊ.lə.raɪz/

polarize

Meaning
to divide or cause to divide into two sharply contrasting groups or sets of opinions or beliefs
Example
The controversial decision polarized public opinion.
C1 adverb /ˈnoʊɪŋli/

knowingly

Meaning
in a way that shows you are aware of something; intentionally
Example
She knowingly kept the secret from her friends.
C1 adjective /ɪˈluːsɪv/

elusive

Meaning
Difficult to find, catch, or achieve; hard to understand or define.
Example
The solution to the problem proved elusive.
C1 noun /ˈfɪɡjərˌhɛd/

figurehead

Meaning
a nominal leader with no real power; a symbolic head
Example
The king was merely a figurehead with no real authority.
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 /ʃəˈreɪd/

charade

Meaning
an absurd pretense or act intended to deceive; also a word-guessing game
Example
The trial was nothing more than a political charade.
C1 adjective /ˈsæk.rəˌsæŋkt/

sacrosanct

Meaning
Regarded as too important or valuable to be interfered with; sacred.
Example
Freedom of speech is considered sacrosanct in democratic societies.
C1 noun /ˈtɛnər/

tenor

Meaning
the general meaning, drift, or character of something; a male singing voice between baritone and alto
Example
The overall tenor of his speech was hopeful and reassuring.
C1 noun /bʊk ˈbaɪn.dər/

Book binder

Meaning
a person whose job is to fasten the pages of books together and put covers on them
Example
The old book binder carefully restored the antique manuscript.
C1 adjective /ˈɡæl.ənt/

gallant

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

refute

Meaning
To prove a statement, argument, or theory to be false or invalid.
Example
The lawyer refuted the witness's testimony with solid evidence.
C1 adjective /ɪmˈpjʊər/

Impure

Meaning
contaminated; not clean; mixed with foreign substances
Example
The impure water caused health problems in the village.
C1 noun /ˈsʌm.ɪt əv ðə ˈfjuː.tʃər/

Summit of the Future

Meaning
A high-level conference focused on addressing future challenges and opportunities.
Example
The Summit of the Future addressed global challenges.
C1 noun /ˈdaʊn.pɔːr/

Downpour

Meaning
a heavy fall of rain; a sudden heavy rainfall
Example
The sudden downpour caught everyone off guard and soaked the outdoor event.
C1 noun /oʊˈveɪʃən/

ovation

Meaning
an enthusiastic show of approval, especially by clapping hands
Example
The actor received a standing ovation after his performance.
C1 noun /frəˈdʒɪl.ɪ.ti/

fragility

Meaning
The quality of being fragile; delicateness.
Example
The cornea's fragility increases with rubbing.
C1 adjective /ɪnˈflæməˌtɔːri/

inflammatory

Meaning
causing inflammation in the body; arousing anger, hostility, or strong emotion
Example
His inflammatory speech triggered protests across the city.
C1 adjective /ˌæprɪˈhɛnsɪv/

apprehensive

Meaning
feeling anxious or fearful that something bad will happen
Example
He was apprehensive about starting a new job in a foreign country.
C1 adjective /ˈwaɪ.li/

Wily

Meaning
clever; cunning; sly
Example
The wily fox escaped from the trap using his cunning intelligence.
C1 adjective /ˈʃɪp.ʃeɪp/

Shipshape

Meaning
neat and tidy; in good order; well-organized
Example
Everything was shipshape before the inspection.
C1 noun /rentʃ/

Wrench

Meaning
a tool used for gripping and turning nuts, bolts, or pipes
Example
He used a wrench to tighten the bolt.
C1 noun /ˈtɪt.bɪt/

Titbit

Meaning
a small piece of tasty food; a small interesting piece of information
Example
She served delicious titbits at the party.
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 adjective /ɪkˈspiːdiənt/

expedient

Meaning
suitable or convenient for achieving a particular end, sometimes at the expense of morality
Example
It was expedient to take the shortcut despite the risks.
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 verb /ˈɒfsɛt/

offset

Meaning
To counterbalance or compensate for something.
Example
The company's losses were offset by gains in other departments.
C1 adjective /ˌeɪˈtɪpɪkəl/

atypical

Meaning
not representative of a type, group, or class; unusual or abnormal
Example
The doctor said it was an atypical case of the disease.
C1 noun ˈiːkəʊˌsɪstəm ˈsɜːvɪsɪz

ecosystem services

Meaning
The benefits people obtain from ecosystems.
Example
Forests provide valuable ecosystem services, such as purifying air and water.
C1 noun/verb /stæmˈpiːd/

stampede

Meaning
A sudden, uncontrolled rush of people or animals; to cause a mass movement.
Example
The loud noise caused a stampede of the crowd.
C1 noun /mɔːrˈfɑːlədʒi/

morphology

Meaning
the study of the form and structure of things, especially in language and biology
Example
Morphology studies the structure of words and how they are formed.
C1 noun /bɒmˈbɑːrdmənt/

bombardment

Meaning
a continuous attack with bombs or other projectiles
Example
The city endured a heavy bombardment during the war.
C1 noun /bɑːrb/

barb

Meaning
a sharp projection such as on a fishhook; a cutting remark
Example
The fishhook has a small barb to keep the fish from escaping.
C1 adjective /ˈmɜː(r)dərəs/

Murderous

Meaning
having the intent to kill; extremely violent; bloodthirsty
Example
The murderous look in his eyes frightened everyone.
C1 noun /truːp/

troupe

Meaning
A group of dancers, actors, or performers who work together.
Example
The theater troupe performed brilliantly on stage.
C1 adjective /ˈtrænziənt/

Transient

Meaning
lasting for only a short time; temporary
Example
The beauty of spring flowers is transient.
C1 adjective /ˈzoʊ.nəl/

Zonal

Meaning
relating to or arranged in zones; of, relating to, or having the form of a zone
Example
The city implemented a zonal parking system to manage traffic congestion.
C1 verb /dɪˈfaɪl/

defile

Meaning
to pollute, corrupt, or make dirty
Example
The river was defiled by industrial waste.
C1 noun ˈɪn.fər.əns

inference

Meaning
A conclusion reached on the basis of evidence and reasoning; logical deduction.
Example
Scientists make inferences based on experimental data.
C1 adjective ˈvɪdʒ.ɪ.lənt

vigilant

Meaning
Keeping careful watch for possible danger or difficulties; alert and watchful.
Example
The guards remained vigilant throughout the night.
C1 adjective /ɪˈnænɪmət/

inanimate

Meaning
not alive, especially not in the manner of animals and humans; lifeless
Example
The museum was full of inanimate objects from ancient times.
C1 noun /ɡrəˈfiː.ti/

Graffiti

Meaning
writing or drawings scribbled, scratched, or sprayed illicitly on a wall or other surface in a public place
Example
The subway walls were covered with colorful graffiti created by local street artists.
C1 noun /ˈsʌn.stroʊk/

Sunstroke

Meaning
a serious condition caused by overheating from prolonged exposure to high temperatures
Example
The worker suffered from sunstroke after working outside all day.
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.
C1 verb /ˈɛkstrɪkeɪt/

extricate

Meaning
To free someone or something from a constraint or difficulty.
Example
The firefighters extricated the passengers from the wrecked car.
C1 verb /weɪv/

waive

Meaning
to refrain from insisting on or enforcing something, especially a right or claim
Example
She decided to waive her right to a lawyer.
C1 noun /ˌdʒenəˈræləti/

generality

Meaning
A vague, non-specific statement or principle that applies broadly.
Example
The speech was full of generalities and lacked concrete details.
C1 adjective /ɪmˈbrɔɪld/

embroiled

Meaning
being deeply involved in a difficult situation, conflict, or scandal
Example
She found herself embroiled in a heated family dispute.
C1 verb /ˌmɪsˈkaʊnt/

miscount

Meaning
To count wrongly or inaccurately.
Example
He miscounted the number of chairs in the hall.
C1 noun /hjuː/

hue

Meaning
A color or shade.
Example
The artist chose a soft blue hue for the background.
C1 noun /ˌdɪspɛnˈseɪʃən/

dispensation

Meaning
An exemption from a rule or usual requirement; a system of order, government, or control.
Example
The school granted him a special dispensation to skip the exam due to illness.
C1 adjective /ˌɒbsəˈliːt/

obsolete

Meaning
No longer in use or out of date.
Example
Floppy disks are now completely obsolete.
C1 noun/verb /ˈskɜːrmɪʃ/

skirmish

Meaning
a small or brief fight between groups of soldiers; to engage in such a fight
Example
The soldiers got into a skirmish near the border.
C1 verb /sʌlk/

sulk

Meaning
to be silent and bad-tempered because you are angry or disappointed
Example
She sulked in her room after the argument.
C1 adverb /ˈwɪmzɪkli/

Whimsically

Meaning
In a playful, fanciful, or capricious manner; with sudden changes of mind
Example
She decorated her room whimsically with colorful balloons.
C1 adjective /ʌnˈkwes.tʃən.ə.bl̩/

Unquestionable

Meaning
not able to be disputed or doubted; certain and beyond doubt
Example
Her honesty and integrity are unquestionable qualities.
C1 noun /ˈwiː.vər bɜːd/

Weaver bird

Meaning
a small bird that builds elaborate woven nests from grass and twigs
Example
The weaver bird skillfully constructs its intricate nest.
C1 adjective /ˈviːəmənt/

Vehement

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

obsessive

Meaning
Relating to or characterized by an obsession; thinking about something too much.
Example
He has an obsessive interest in cleanliness.
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 /ˈkʌntrɪmən/

countryman

Meaning
a person from one's own country or rural area
Example
He was proud to meet a fellow countryman at the international conference.
C1 noun /ˈjuː.fə.mɪ.zəm/

euphemism

Meaning
A mild or indirect term substituted for one considered too harsh or direct; polite expression for something unpleasant.
Example
The phrase "passed away" is a euphemism for "died".
C1 noun /ˈkɒləmnɪst/

columnist

Meaning
a journalist who regularly writes articles or opinions for a newspaper or magazine
Example
The columnist wrote an article about climate change.
C1 adjective /ˌfɪz.i.əˈlɒdʒ.ɪ.kəl/

physiological

Meaning
Relating to bodily functions and activities.
Example
Exercise improves physiological functions of the body.
C1 adjective /ˈtɔːrtʃuəs/

tortuous

Meaning
Full of twists and turns; excessively complex or complicated.
Example
The tortuous mountain road made driving very difficult.
C1 noun /ˈɪntərˌluːd/

interlude

Meaning
A short period of time that comes between two events; an interval.
Example
There was a brief musical interlude between the two acts of the play.
C1 noun /ˈɔr.ə.kəl/

Oracle

Meaning
a person regarded as a source of wise counsel; in ancient times, a priest or priestess acting as a medium
Example
The ancient Greeks consulted the oracle at Delphi.
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 /məˈdʒen.tə/

Magenta

Meaning
a bright purplish-red color
Example
She wore a beautiful magenta dress to the party.
C1 noun /lɪˈbiːdoʊ/

libido

Meaning
Sexual desire or drive.
Example
Stress can sometimes lower a person's libido.
C1 noun /baʊt/

Bout

Meaning
a short period of intense activity of a specified kind; a wrestling or boxing match
Example
After a bout of illness, she finally recovered and returned to work.
C1 adjective /dɪˈspɪrɪtɪd/

dispirited

Meaning
Having lost enthusiasm, hope, or confidence; dejected.
Example
After losing the match, the team looked dispirited.
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 verb /ˌɪnstɪˈtjuːʃənəlaɪz/

institutionalize

Meaning
to establish something as a formal institution, custom, or practice
Example
The government seeks to institutionalize environmental protection.
C1 verb /rɪˈvɪər/

revere

Meaning
To deeply respect or admire someone or something.
Example
The students revered their teacher for his wisdom.
C1 verb /ræsp/

rasp

Meaning
to speak in a rough, harsh voice or to scrape with a coarse sound
Example
He rasped out a warning before collapsing.
C1 adjective /klænˈdɛstaɪn/

clandestine

Meaning
kept secret or done secretly, especially for illicit purposes
Example
They held a clandestine meeting late at night.
C1 noun /ˈpoʊʃən/

potion

Meaning
a liquid with healing, magical, or poisonous properties
Example
The witch gave the hero a healing potion.
C1 noun /ˈpruːdəns/

prudence

Meaning
The quality of being cautious, wise, and exercising good judgment.
Example
She invested her money with great prudence.
C1 noun /ɔːˈtɒkrəsi/

autocracy

Meaning
A system of government in which one person has absolute power.
Example
The country suffered under decades of autocracy.
C1 noun ˈɛksəʊˌplænɪt

exoplanet

Meaning
A planet that orbits a star outside the solar system.
Example
Astronomers have discovered thousands of exoplanets in the last decade.
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 noun /krʌˈsteɪʃən/

crustacean

Meaning
an aquatic animal with a hard shell, such as crabs, lobsters, and shrimps
Example
Crabs and lobsters are well-known crustaceans.
C1 adjective /ɪˈfɛm.ər.əl/

ephemeral

Meaning
Lasting for a very short time; temporary or transitory.
Example
The beauty of cherry blossoms is ephemeral.
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 /ˈɛspiənɑːʒ/

espionage

Meaning
The practice of spying or using spies to gather secret information, usually for political or military purposes.
Example
The agent was arrested on charges of espionage against the state.
C1 adjective /ˈpæl.ɪd/

Pallid

Meaning
pale, especially because of poor health; lacking substance or vitality
Example
His pallid complexion showed signs of illness.
C1 noun /koʊˈɜː.ʃən/

coercion

Meaning
The practice of persuading someone to do something by using force or threats.
Example
Cybercriminals use coercion to extract information.