obsidian
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
C2 noun /əbˈsɪdiən/

obsidian

Meaning
A hard, dark, glasslike volcanic rock formed by rapid solidification of lava.
Example
The knife was made from sharp obsidian.
B2 noun /fleɪm/

Flame

Meaning
a hot glowing body of ignited gas that is generated by something on fire
Example
The candle flame flickered gently in the evening breeze.
C2 adjective /ˈvɛntrəl/

ventral

Meaning
relating to the underside or abdominal part of an animal or organ
Example
The fish has a white ventral surface.
C1 noun /jiːst/

Yeast

Meaning
microorganisms used in baking and brewing to cause fermentation
Example
Add yeast to the flour to make the bread rise.
C2 verb /ˈmiːliəˌreɪt/

meliorate

Meaning
To make something better or improve a condition.
Example
The new policies aim to meliorate the living conditions of the poor.
B2 adjective /ˈædvɜːrs/

Adverse

Meaning
harmful; unfavorable; opposing; negative
Example
The adverse weather conditions forced them to cancel the event.
B2 adjective /ʌnfəˈmɪl.jər/

Unfamiliar

Meaning
not known or recognized; strange
Example
The city was unfamiliar to me since I had never been there before.
B2 noun /dɪˈnɒmɪˌneɪtər/

denominator

Meaning
the number below the line in a fraction; a common factor in a situation
Example
In the fraction 3/4, the number 4 is the denominator.
C1 verb /əˈtɛst/

attest

Meaning
To provide or serve as clear evidence of; to confirm or certify the truth of something.
Example
The witness attested to the accuracy of the report.
B1 noun /kjuː/

Queue

Meaning
a line of people or things waiting for something; a sequence
Example
We had to wait in a long queue to buy tickets for the movie.
B2 noun /ˈprɒs.pekts/

prospects

Meaning
The possibility or likelihood of some future event occurring.
Example
The prospects for growth look promising.
A2 adjective /braɪt/

Bright

Meaning
giving out or reflecting much light; vivid in color
Example
The artist used bright colors in her painting.
B2 noun /beɪs/

bass

Meaning
the lowest adult male singing voice; also, low-frequency sounds in music or a type of fish
Example
He played the bass guitar at the concert.
C1 noun /ˌʌnprɪˈdɪktəˌbɪləti/

unpredictability

Meaning
The quality of being impossible to predict or anticipate.
Example
The unpredictability of the weather made the trip uncertain.
B2 adjective /aʊtˈstændɪŋ/

outstanding

Meaning
extremely good or impressive; not yet resolved or paid
Example
She received an award for her outstanding performance.
B2 adjective /ˈsɛl.əˌbreɪ.tɪd/

celebrated

Meaning
Widely known and praised; famous for an achievement.
Example
He is a celebrated author in the field of literature.
B2 noun /ˈpeɪtrən/

patron

Meaning
a person who gives financial or other support to a person, organization, or cause
Example
The library is supported by generous patrons.
C1 adjective /ɪkˈstɛnjueɪtɪŋ/

extenuating

Meaning
serving to make a fault or an offense seem less serious
Example
She asked for leniency due to extenuating circumstances.
A2 adjective /ˈsuːpər/

super

Meaning
excellent; very good
Example
She did a super job on the project.
A2 noun /fluː/

flu

Meaning
a contagious viral illness causing fever, aches, and respiratory symptoms; influenza
Example
She stayed home because she had the flu.
B2 adjective /suːˈpɪə.ri.ər/

Superior

Meaning
higher in rank, quality, or importance; better than average
Example
This product is superior to all others in the market.
A2 noun/adjective /ˈmɪdəl/

middle

Meaning
the central point, position, or part of something
Example
The park is in the middle of the city.
C2 adjective /dɪˈlɛktəbl̩/

delectable

Meaning
delicious or highly enjoyable
Example
The restaurant served a delectable meal.
C2 adjective /ˈflæs.ɪd/

Flaccid

Meaning
soft and limp; lacking firmness; drooping
Example
The plant's leaves became flaccid after days without water.
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.
C2 noun əˈkjuː.ə.ti

acuity

Meaning
Sharpness or keenness of thought, vision, or hearing.
Example
His intellectual acuity made him a brilliant scientist.
C2 verb /dɪsˈɡɔːrdʒ/

disgorge

Meaning
to discharge or pour out; to vomit; to give up reluctantly
Example
The broken pipe disgorged water all over the floor.
C1 noun /haɪˈpɜːrbəli/

hyperbole

Meaning
Exaggerated statements or claims not meant to be taken literally.
Example
Saying he could run a thousand miles in a day is pure hyperbole.
C1 noun /kɑːrˈtɒɡrəfi/

cartography

Meaning
The science or practice of drawing maps.
Example
She studied cartography at university to learn how to design maps.
C1 noun /dɪn/

din

Meaning
a loud, unpleasant, and prolonged noise
Example
The din of traffic outside made it hard to concentrate.
C1 verb /ˌaʊtˈweɪ/

outweigh

Meaning
To be more important, valuable, or significant than something else.
Example
The benefits of the new policy outweigh the risks.
C1 noun/verb /ˈætrəfi/

atrophy

Meaning
a decrease in size or wasting away of a body part, tissue, or ability due to lack of use
Example
Without regular exercise, muscles may atrophy over time.
B2 adjective /ˌoʊvərˈwɛlmɪŋ/

overwhelming

Meaning
Very intense; overpowering.
Example
Large tasks can feel overwhelming.
A1 adjective /ˈjuːs.fəl/

Useful

Meaning
having a beneficial purpose; practical
Example
This tool is very useful for fixing problems.
B2 adjective /ˌkɒst.ɪˈfɪʃ.ənt/

cost-efficient

Meaning
Achieving maximum productivity with minimum wasted effort or expense.
Example
Cost-efficient solutions benefit industries.
A2 noun /ˈtɒpɪk/

topic

Meaning
a subject of conversation, discussion, or writing
Example
The topic of the meeting was company expansion.
C1 noun /ˈʌndərdɒɡ/

underdog

Meaning
a competitor thought to have little chance of winning; a weaker party in a contest
Example
The underdog team surprised everyone by winning the championship.
C1 noun /ˈneb.jʊ.lə/

nebula

Meaning
A cloud of gas and dust in outer space, sometimes visible in the night sky.
Example
The Orion Nebula is one of the brightest in the sky.
B2 noun /ˈledʒ.ənd/

Legend

Meaning
a traditional story sometimes popularly regarded as historical but unauthenticated; an extremely famous or notorious person
Example
The legend of King Arthur has inspired many books.
B2 noun /əˈlaɪnmənt/

alignment

Meaning
arrangement in a straight line or in proper position
Example
The alignment of the planets was perfect for the celestial event.
C2 noun /ˈbɑːr.nɪ.kəl/

Barnacle

Meaning
a marine crustacean that attaches itself permanently to underwater surfaces
Example
The old ship's hull was covered with barnacles.
C2 adjective /əˈfɪʃəs/

officious

Meaning
Excessively eager to offer unwanted help or advice; meddlesome.
Example
The officious guard kept interrupting the visitors with unnecessary instructions.
B2 adjective /ˈstuː.di.əs/

Studious

Meaning
characterized by diligent study; devoted to learning
Example
She is a studious student who spends hours in the library.
B1 verb /tʃɒp/

chop

Meaning
to cut with a sharp tool; to cut into pieces
Example
She chops vegetables for dinner.
C2 noun /ˈmɪsɪv/

missive

Meaning
a written message, especially a formal or official letter
Example
He sent a long missive to the governor.
C1 noun /daɪˈvɜː.ʃən/

Diversion

Meaning
the action of turning something aside from its course; an activity that diverts the mind
Example
The road closure forced a diversion through the countryside for all travelers.
A2 adjective /ˈsɛvrəl/

several

Meaning
more than one but not many; a few
Example
Several people attended the meeting yesterday.
B2 adjective /ˈhjuː.mɪd/

Humid

Meaning
containing moisture; damp; moist;
Example
The humid climate makes it feel hotter than it actually is.
B2 verb /əˈpoʊz/

oppose

Meaning
to disagree with or resist; to act against
Example
Many citizens oppose the new tax policy.
A2 noun /ˈfɪŋ.ɡər/

Finger

Meaning
any of the four long thin parts of the hand (or five, if the thumb is included)
Example
She pointed with her finger to show the direction to the museum.
C2 noun /ˈɡlæsi fɪʃ/

Glassy fish

Meaning
a transparent freshwater fish with a glassy appearance, popular in aquariums
Example
The glassy fish is known for its transparent body and peaceful nature.
B1 noun /əˈsɛmbli/

assembly

Meaning
a group of people gathered together for a common purpose or the act of putting parts together to form something
Example
The school held an assembly to discuss the new rules.
C2 noun /ˈvɛrɪti/

verity

Meaning
a true principle or belief; the state of being true
Example
The verity of his statement was confirmed by evidence.
A1 adjective /ʃʊr/

Sure

Meaning
completely confident that something is true; certain; definitely true
Example
I am sure that he will come tomorrow.
C2 noun /kəˈdævər/

cadaver

Meaning
A dead human body, especially one used for medical study.
Example
Medical students dissected the cadaver to learn about human anatomy.
B2 adjective /ˈtiːdiəs/

Tedious

Meaning
tiresome because of length or dullness; boring and monotonous
Example
The lecture was so tedious that many students fell asleep.
A2 noun əˈlɪm.pɪk ɡeɪmz

Olympic Games

Meaning
The world's largest international sports competition held every four years, bringing together athletes from different countries to compete in various sports.
Example
The Olympic Games bring together the world's top athletes.
C2 noun /ˈkɒn.tjʊ.mə.li/

contumely

Meaning
insulting or humiliating treatment
Example
He endured the contumely of his colleagues with patience.
C1 adjective, verb /sɪˈdeɪt/

sedate

Meaning
calm, quiet, and composed; or to administer a drug to make someone calm or sleep
Example
The nurse sedated the patient before the operation.
C1 noun /ˈkwɒn.dər.i/

Quandary

Meaning
a difficult situation where you cannot decide what to do; dilemma
Example
She was in a quandary about which job offer to accept.
B2 adjective ˈɡrædʒ.u.əl

gradual

Meaning
Taking place or progressing slowly or by degrees.
Example
Gradual changes are more sustainable.
C1 noun /əˈpɒsəl/

apostle

Meaning
A vigorous and pioneering advocate or supporter of a particular cause, often used for the early Christian disciples.
Example
He became an apostle of environmental protection.
C2 noun /ˈsɛrəf/

seraph

Meaning
An angelic being associated with light and purity, often depicted as a high-ranking angel in Christian theology.
Example
The stained-glass window depicted a seraph with outstretched wings.
B1 verb /ˈɛmfəˌsaɪz/

emphasize

Meaning
to give special importance or attention to something
Example
The teacher emphasized the importance of homework.
A2 verb, noun /drɒp/

drop

Meaning
to let something fall; a small quantity of liquid
Example
Be careful not to drop your phone.
A1 adjective /bæd/

bad

Meaning
not good; unpleasant, harmful, or of poor quality
Example
The milk smells bad, so don’t drink it.
B1 noun ˈtʃæt.dʒiː.piː.tiː

ChatGPT

Meaning
A language-based artificial intelligence model designed for conversational interactions.
Example
ChatGPT helps users generate human-like text efficiently.
A2 adjective /səkˈsɛsfəl/

Successful

Meaning
having achieved a desired aim or result; prosperous
Example
She was successful in her career as a doctor.
B1 noun /tæks/

tax

Meaning
a compulsory contribution to state revenue, typically levied on income or sales
Example
The government increased the tax rate on luxury goods.
C2 adjective ˈmiː.ni.əl

menial

Meaning
Not requiring much skill and lacking prestige.
Example
He refused to do menial work.
C2 noun /meɪˈlɑːnʒ/

melange

Meaning
A mixture of different things or styles.
Example
The festival offered a melange of music, food, and art.
C1 noun kənˌsɒl.ɪˈdeɪ.ʃən

Consolidation

Meaning
The process of converting newly learned information into long-term memory
Example
Sleep plays a key role in memory consolidation.
B1 noun /əˈpiːl/

Appeal

Meaning
a serious or urgent request, typically to the public; the quality of being attractive or interesting
Example
The charity made an appeal for donations.
C1 adjective /ɒmˈnɪv.ər.əs/

Omnivorous

Meaning
eating both plants and animals; feeding on various kinds of food
Example
Bears are omnivorous animals that eat both plants and meat.
A2 adjective, noun /ˈkloʊsər/

closer

Meaning
more near in distance or relationship; someone or something that concludes an activity
Example
She moved closer to the window.
B1 noun /ˌpɜr.sənˈæl.ə.ti/

Personality

Meaning
the combination of characteristics that form an individual's distinctive character; a famous person
Example
She has a very outgoing and friendly personality.
C1 noun/verb /ˈprɛdɪkət/ (noun), /ˈprɛdɪkeɪt/ (verb)

predicate

Meaning
noun: the part of a sentence that tells something about the subject; verb: to base or establish something on a particular idea
Example
His theory is predicated on sound research.
C2 noun /ˈdrɪvəl/

drivel

Meaning
silly or nonsensical talk
Example
The politician’s speech was full of meaningless drivel.
C2 noun /rɪˈdʒɔɪndər/

rejoinder

Meaning
a quick or witty reply; a response to a remark or argument
Example
His sharp rejoinder silenced the crowd.
C1 noun /ˈsteɪl.meɪt/

stalemate

Meaning
A situation in which no progress can be made or no party can win.
Example
Negotiations ended in a stalemate.
A2 interjection /mˈhm/

mm-hmm

Meaning
A sound used to express agreement or acknowledgment in conversation.
Example
‘Do you understand?’ ‘Mm-hmm.’
C1 noun /ˈɡʌnˌpaʊdər/

Gunpowder

Meaning
explosive powder used in guns and fireworks
Example
Gunpowder was invented in ancient China.
B2 noun /ˈskʌlp.tʃər/

Sculpture

Meaning
the art of making objects by carving; a work of art made by carving
Example
The museum displays ancient Greek sculpture.
C1 verb /siːp/

seep

Meaning
to flow or leak slowly through small openings or pores
Example
Water began to seep through the cracks in the wall.
B2 adjective /ˈlʌv.ə.bəl/

Lovable

Meaning
deserving of love; endearing; adorable
Example
The puppy was so lovable that everyone wanted to adopt it.
B2 verb prəˈlɔŋd

prolonged

Meaning
Extended in duration; made to last longer than usual.
Example
Modern medicine has prolonged life expectancy.
B1 verb /breɪk/

brake

Meaning
to slow down or stop a vehicle by applying a brake
Example
He braked suddenly to avoid hitting the dog.
C1 adjective /ˈsæŋɡwɪn/

sanguine

Meaning
Optimistic or positive, especially in a difficult situation.
Example
Despite the challenges, she remained sanguine about the future.
B2 adjective kɒnˈtek.stju.əl

contextual

Meaning
Depending on or relating to the circumstances or setting; context-dependent.
Example
Contextual meaning changes depending on usage.
A1 verb /ɡes/

guess

Meaning
to give an answer or opinion without complete knowledge; to estimate
Example
Can you guess the answer?
B2 noun /dɪsˈpoʊzl/

disposal

Meaning
the action or process of getting rid of something
Example
The disposal of waste is crucial for maintaining a clean environment.
A2 verb /kræʃ/

crash

Meaning
To collide violently; to suddenly stop working (for machines or computers).
Example
The car crashed into the wall at high speed.
C2 noun /ˌmæləˈdɪkʃən/

Malediction

Meaning
A magical word used to invoke a curse; an evil spell
Example
The witch uttered a terrible malediction upon her enemies.
B2 adjective /ˈstɛdi/

steady

Meaning
firm, stable, and not likely to change suddenly
Example
He kept his hand steady while painting the picture.
C2 adjective /ˈplɛntɪəs/

plenteous

Meaning
existing in great quantity; abundant
Example
The harvest was plenteous, providing enough food for the entire village.
C1 noun /dɪˌlɪb.əˈreɪ.ʃənz/

deliberations

Meaning
Careful consideration and discussion before making decisions.
Example
Deliberations on sustainability continued for hours.
B1 verb /briːð/

breathe

Meaning
To take air into the lungs and send it out again.
Example
It was hard to breathe in the smoky room.
C1 noun /ˌklɔːstrəˈfəʊbiə/

claustrophobia

Meaning
an extreme or irrational fear of being in confined spaces
Example
He avoids elevators because of his claustrophobia.
B2 verb /tʃænt/

chant

Meaning
to sing or recite in a rhythmic way
Example
The monks chant prayers in the temple.
C1 phrase ˈiː.kəʊˌsɪs.təm kəˈlæps

ecosystem collapse

Meaning
The complete breakdown of an ecological system, resulting in the inability to maintain its structure and function.
Example
Unchecked deforestation can lead to ecosystem collapse.
C2 verb /ˈfrɪtər/

fritter

Meaning
To waste time, money, or energy on trivial matters.
Example
He frittered away his savings on unnecessary gadgets.
B1 noun /edʒ/

Edge

Meaning
the outside limit of an object or area; a sharp side of a blade
Example
Be careful not to cut yourself on the sharp edge of the knife.
C1 adjective /ʌnˈmɒdɪfaɪd/

unmodified

Meaning
not changed from its original form or state
Example
The data was used in its unmodified form for analysis.
C2 noun /dɪsˈtɛmpər/

distemper

Meaning
a viral disease affecting animals, especially dogs; also refers to a state of disorder
Example
The dog was diagnosed with distemper and needed immediate care.
C2 adjective /ˈpʌdʒi/

pudgy

Meaning
slightly fat or chubby in a way that is often cute
Example
The baby had pudgy cheeks that everyone adored.
B2 noun /ˈsoʊlər ɪˈklɪps/

Solar eclipse

Meaning
an eclipse in which the sun is obscured by the moon passing between it and the earth
Example
The solar eclipse will be visible from our city next month.
B2 noun /buːθ/

booth

Meaning
a small enclosed space or area used for a specific purpose, such as voting or selling.
Example
He went into the voting booth to cast his ballot.
C2 noun /ˈaɪ.lət/

islet

Meaning
A very small island.
Example
The fishermen rested on a tiny islet before continuing their journey.
B2 noun /ˈdɛltə/

delta

Meaning
A landform at the mouth of a river where it splits into several outlets.
Example
The Nile Delta is one of the most fertile regions in Egypt.
C1 noun ˌræʃ.ən.əl.ɪˈzeɪ.ʃən

rationalization

Meaning
The practice of finding reasons for behavior or actions that are not the real reasons.
Example
His rationalization of the mistake was not convincing.
B1 noun /miːnz/

Means

Meaning
An action or system by which a result is achieved; financial resources
Example
They don't have the means to afford such an expensive vacation.
B1 adjective /ˈsætɪsfaɪd/

satisfied

Meaning
Pleased or content with what has been achieved or received.
Example
He felt satisfied after finishing his project.
A2 noun /ˈflaɪ.ɪŋ ˈkriː.tʃər/

Flying creature

Meaning
any animal that has the ability to fly through the air
Example
Birds, bats, and insects are all examples of flying creatures.
A2 noun /ˈdʒækɪt/

Jacket

Meaning
a piece of clothing worn on the upper body, typically having sleeves and fastening down the front
Example
He wore a leather jacket to protect himself from the cold wind.
B1 verb /ˈbɑrɡɪn/

bargain

Meaning
to negotiate terms; to discuss prices; to make a deal
Example
She likes to bargain at the local market.
C2 noun /əˈnækrəˌnɪzəm/

anachronism

Meaning
something that is out of its proper time period, especially something old-fashioned in a modern context
Example
Using a typewriter today feels like an anachronism.
C1 adjective /ˈɔːdəˌtɔːri/

auditory

Meaning
Relating to the sense of hearing.
Example
The lecture was designed to enhance students' auditory learning skills.
B2 adverb /ˈθɪkli/

Thickly

Meaning
in a thick manner; densely; heavily
Example
The forest was thickly wooded with tall pine trees.
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.
A2 noun ˌkɒmpəˈtɪʃən

competition

Meaning
The activity or condition of competing; rivalry for supremacy.
Example
Competition grew between language groups.
B1 adverb /ˈrʌfli/

Roughly

Meaning
approximately; in a harsh or violent way
Example
The project will take roughly three months to complete.