anneal
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C2 verb /əˈniːl/

anneal

Meaning
To heat and cool metal or glass to make it stronger or less brittle.
Example
The blacksmith annealed the steel to improve its durability.
C2 noun /ˌɛərəˈstætɪks/

aerostatics

Meaning
The branch of physics that deals with the equilibrium of air and gases and the forces acting on bodies in them.
Example
Aerostatics is essential for understanding how balloons float.
C2 noun /ˈeɪ.viˌɛr.i/

aviary

Meaning
a large enclosure for keeping birds
Example
The zoo built a new aviary for exotic parrots.
A2 noun /əˈdɪʃ.ən/

Addition

Meaning
the process of adding numbers; something that is added
Example
The addition of a new room made the house more spacious.
B2 adjective ˌæn.tiˌdɪs.krɪˈmɪn.eɪ.ʃən

anti-discrimination

Meaning
Opposed to or working against discrimination; promoting equal treatment regardless of differences.
Example
The anti-discrimination movement was groundbreaking.
B2 verb /əˈteɪn/

attain

Meaning
to achieve or reach something
Example
She worked hard to attain her goals.
A1 noun /ˈæp.əl/

Apple

Meaning
a round fruit with red, green, or yellow skin and white flesh
Example
I eat an apple every day for breakfast.
C2 adjective /ˌæk.rɪˈmoʊ.ni.əs/

acrimonious

Meaning
Bitter and angry, often involving harsh words.
Example
The debate turned acrimonious after the controversial remark.
C1 noun /ˈænərki/

anarchy

Meaning
a state of disorder due to the absence or failure of government or authority
Example
The collapse of the regime led to anarchy in the streets.
C1 adjective, noun /ɔːɡˈzɪliəri/

auxiliary

Meaning
(adjective) providing supplementary or additional help and support; (noun) a person or thing that provides auxiliary support
Example
The hospital has an auxiliary power generator in case of emergencies.
C2 noun /əˈsɜːrbəti/

acerbity

Meaning
bitterness or sharpness of tone, manner, or taste
Example
The acerbity of his remarks left everyone silent.
C2 noun /ˈæn.ə.lɪst/

annalist

Meaning
A person who writes annals or records events year by year.
Example
The annalist carefully documented the events of the king's reign.
C2 adjective /əˈkwɪzətɪv/

acquisitive

Meaning
excessively interested in acquiring money or material things
Example
The acquisitive businessman bought every piece of land he could find.
C1 noun /əˈkʌmplɪs/

accomplice

Meaning
a person who helps another commit a crime
Example
The thief was arrested along with his accomplice.
B2 verb /əˈsɛmbəl/

assemble

Meaning
to gather or bring together in one place
Example
The students assembled in the hall for the meeting.
A1 adjective /əˈfreɪd/

afraid

Meaning
feeling fear or anxiety; worried that something undesirable will happen
Example
She was afraid of the dark.
C1 adverb /əˈtroʊʃəsli/

atrociously

Meaning
in a very cruel, shocking, or extremely bad manner
Example
The service at the restaurant was atrociously slow.
A2 verb /əˈpɒlədʒaɪz/

apologize

Meaning
to say sorry for something wrong you have done
Example
He apologized for being late to the meeting.
C2 noun /ˈænsɛstrɪs/

ancestress

Meaning
a female ancestor; a woman from whom one is descended
Example
She discovered that her ancestress came from a small village in Bengal.
C1 noun /əˈtaɪər/

attire

Meaning
Clothing, especially formal or elegant wear.
Example
She wore traditional attire at the wedding ceremony.
B2 verb ədˈhɪər

adhere

Meaning
To stick firmly to something or stay attached.
Example
Neutrons adhere to protons.
B1 noun /ˈæbsəns/

Absence

Meaning
the state of being away from a place or person; lack or non-existence
Example
His absence from the meeting was noticed by everyone.
C1 verb /ˈæbdɪkeɪt/

abdicate

Meaning
To give up a position of power or responsibility, especially a throne.
Example
The king decided to abdicate the throne.
C2 adjective /eɪˈsɛptɪk/

aseptic

Meaning
Free from contamination caused by harmful microorganisms; sterile.
Example
Surgeons must work in an aseptic environment to prevent infection.
C1 verb /əbˈdʌkt/

abduct

Meaning
to take someone away illegally by force or deception
Example
The criminal tried to abduct the child in broad daylight.
C1 noun /ˈælkoʊv/

alcove

Meaning
A small recessed section of a room or a nook.
Example
She placed a reading chair in the alcove near the window.
B2 noun /əˈluːmɪnəm/

aluminum

Meaning
a lightweight silvery metal used for making cans, foils, and other items
Example
The airplane body is made of strong but light aluminum.
C1 verb /əˈskraɪb/

ascribe

Meaning
To attribute something to a cause, source, or person.
Example
Many scholars ascribe the poem to an unknown author.
A1 noun/adjective /əˈmerɪkən/

american

Meaning
relating to the United States or its people
Example
She is an American citizen.
B2 noun /əˈsɛnt/

ascent

Meaning
The act of rising or climbing to a higher position or level.
Example
The climbers began their ascent to the mountain peak at dawn.
C2 noun /ˈeɪʒən swɒmp iːl/

Asian swamp eel

Meaning
a snake-like freshwater fish that can survive in muddy waters and is considered a delicacy in South Asian cuisine
Example
Asian swamp eel can breathe air and survive in shallow muddy waters.
A2 noun (plural) /ædz/

ads

Meaning
short for advertisements; promotional messages intended to sell products or services
Example
I often skip ads when watching videos online.
C1 noun /ˈædʒʌŋkt/

adjunct

Meaning
a thing added to something else as a supplementary part
Example
The professor worked as an adjunct at the university.
C2 noun /əˈfleɪtəs/

afflatus

Meaning
a sudden divine inspiration or creative impulse
Example
The poet wrote the verses under a sudden afflatus of inspiration.
C2 noun /əˌkædəˈmɪʃən/

academician

Meaning
a member of an academy; a scholar or expert in a field of study
Example
The academicians gathered to discuss the future of education.
C1 noun /ˈæmfɪˌθiətər/

amphitheater

Meaning
A large open circular or oval building with rising tiers of seats, used for public events.
Example
The concert was held in an ancient amphitheater.
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 noun /əˈduː/

ado

Meaning
a fuss or unnecessary activity; trouble or difficulty
Example
Without further ado, let’s begin the ceremony.
C1 adjective /əˈbreɪsɪv/

abrasive

Meaning
harsh, rough, or capable of wearing down by rubbing
Example
His abrasive tone made everyone uncomfortable.
C1 adjective /ˌeɪˈsɛkʃuəl/

asexual

Meaning
Without sexual feelings, associations, or reproduction through sex.
Example
Many plants reproduce through asexual methods like budding or splitting.
C2 noun /əˈnæθəmə/

anathema

Meaning
something or someone intensely disliked or strongly condemned
Example
Violence is anathema to her peaceful nature.
A2 adjective /əˈmeɪzɪŋ/

amazing

Meaning
causing great surprise or wonder; astonishing
Example
The magician performed an amazing trick.
A2 noun /əˈbɪləti/

Ability

Meaning
the power or skill to do something; capacity
Example
She has the ability to solve complex problems.
B2 adjective /əˈfektɪd/

Affected

Meaning
influenced; impacted; touched by something
Example
The flood-affected areas need immediate assistance.
B1 adjective /ænˈtiːk/

Antique

Meaning
old and valuable; belonging to ancient times
Example
She collected antique furniture from the Victorian era.
B2 noun /ˈɑːr.tɪ.zən/

Artison

Meaning
a skilled craftsperson who makes things by hand
Example
The artisan created a beautiful wooden sculpture.
C2 noun /ˈæn.oʊd/

anode

Meaning
The positive electrode in a device such as a battery, where current flows into a polarized electrical device.
Example
The anode of the battery was corroded after long use.
C1 noun /ˈæpərtʃər/

aperture

Meaning
an opening, hole, or gap, especially one that lets in light
Example
Light entered through the small aperture in the wall.
B2 verb /əˈbændən/

abandon

Meaning
to give up completely; to leave permanently
Example
They had to abandon their house due to flooding.
C1 noun /ˈɑːr.sən.əl/

arsenal

Meaning
A collection or storage place for weapons and military equipment.
Example
The army kept its weapons in a secure arsenal.
A2 adverb /ˈæktʃuəli/

actually

Meaning
used to emphasize that something is true, especially when surprising
Example
She actually completed the project ahead of schedule.
B2 noun ˈæp.ə.taɪt

appetite

Meaning
A natural desire to satisfy a bodily need, especially for food.
Example
Junk food increases appetite unnaturally.
A2 noun /ˈæl.fə.bɛt/

alphabet

Meaning
a set of letters or symbols in a fixed order used to represent the sounds of a language
Example
Children usually learn the alphabet before learning to read words.
C2 adverb /əˈbɛd/

abed

Meaning
in bed
Example
She stayed abed all day due to illness.
B2 noun ˈæn.ɪk.doʊt

anecdote

Meaning
A short interesting story used in speeches or writing.
Example
A well-placed anecdote makes a speech more relatable.
C2 adjective /ɔːˈrɪkjʊlər/

auricular

Meaning
Relating to the ear or hearing.
Example
The doctor used an auricular thermometer to check the patient's temperature.
C2 adjective /ˌækwiˈɛsənt/

acquiescent

Meaning
ready to accept something without protest, or to do what someone else wants
Example
He gave an acquiescent smile and agreed to the plan.
B2 adjective /ˌæksɪˈdɛntl/

accidental

Meaning
happening by chance, unintentionally
Example
The fire was caused by an accidental spark.
C1 noun /ˈækwɪˌdʌkt/

aqueduct

Meaning
a structure built to carry water over long distances
Example
The Romans built aqueducts to supply water to their cities.
B2 noun /ˈæŋk.lət/

Anklet

Meaning
a piece of jewelry worn around the ankle
Example
She wore a beautiful silver anklet on her left foot.
A2 adjective /əˈtræk.tɪv/

Attractive

Meaning
pleasing or appealing to the senses; having a quality that draws interest
Example
The garden looks very attractive in spring.
B2 noun /ˈæktɪvɪst/

activist

Meaning
A person who works to bring about social or political change.
Example
The activist organized a protest against pollution.
B2 noun /əˌdæptəˈbɪləti/

adaptability

Meaning
The quality of being able to adjust to new conditions or circumstances
Example
Adaptability to changing environments is crucial in business.
C2 adjective /ɔːˈrɔːrəl/

auroral

Meaning
Relating to or resembling the aurora, especially the northern lights.
Example
The scientists observed auroral activity in the night sky.
B2 noun /əˈɡrɛʃən/

aggression

Meaning
hostile or violent behavior towards others
Example
His sudden aggression surprised everyone in the meeting.
C2 noun /ˈæntɪk/

antic

Meaning
a playful, funny, or silly act or gesture
Example
The children laughed at the clown’s antics.
B2 noun /ˈeɪlmənt/

ailment

Meaning
An illness, typically a minor one.
Example
He went to the doctor for a minor stomach ailment.
B1 noun /ˈæksɛnt/

accent

Meaning
a distinctive way of pronouncing a language, especially one associated with a particular country or region
Example
She spoke English with a strong French accent.
A1 adverb /ɔːlˈredi/

Already

Meaning
before now; by this time; previously
Example
I have already finished my homework for today.
B2 noun ˌæd.æpˈteɪ.ʃən

adaptation

Meaning
The action or process of adapting or being adapted.
Example
Adaptation to climate change is critical for resilience.
A2 noun /əˈraɪvəl/

Arrival

Meaning
the action or process of arriving; the reaching of a destination
Example
The arrival of the train was delayed by two hours.
B2 adjective /əkˈsɛsəbl/

accessible

Meaning
easy to reach, use, or understand
Example
The museum is easily accessible by public transport.
C1 noun /ˌæn.ɪˈmɒs.ə.ti/

Animosity

Meaning
strong hostility or dislike; active hatred or ill will
Example
There was clear animosity between the two rival teams.
C1 noun /ˈæmnəsti/

amnesty

Meaning
An official pardon granted to people who have been convicted of political offenses.
Example
The government announced an amnesty for all political prisoners.
B2 noun /əˈplɔːz/

applause

Meaning
the sound of people clapping their hands to show approval or enjoyment
Example
The actor received loud applause after his performance.
B2 noun /əˈdʒʌstmənt/

adjustment

Meaning
a small change made to improve something or make it work better
Example
The doctor made an adjustment to the patient’s medication.
B2 adverb /əˈlɔːŋ.saɪd/

Alongside

Meaning
beside; next to; together with
Example
She walked alongside her friend through the park.
C2 adjective /ˌæntɪdəˈluːviən/

antediluvian

Meaning
extremely old-fashioned; belonging to the time before the biblical flood
Example
His views on women are positively antediluvian.
C1 noun /əˈsɛnʃən/

ascension

Meaning
The act of rising or going up, often to an important position or a higher place.
Example
His rapid ascension in the company surprised everyone.
C2 noun /əˈdɛpt.nəs/

adeptness

Meaning
Skill and dexterity in a task.
Example
His adeptness in negotiations helped close the deal successfully.
B2 conjunction /ˌɔːlˈbiː.ɪt/

albeit

Meaning
Although; even though.
Example
He finally agreed, albeit reluctantly.
B2 verb /ˈɔːltər/

alter

Meaning
to change or modify something slightly but significantly
Example
She decided to alter her dress to make it fit better.
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 noun /əˈnɒməli/

anomaly

Meaning
something that deviates from the norm or expected result
Example
The sudden drop in temperature was considered an anomaly.
C1 noun /ˈæntlɚ/

antler

Meaning
The branched horns on the head of a deer or similar animal, usually shed and regrown annually.
Example
The deer’s antlers grew larger each year.
B2 noun /ˈækni/

acne

Meaning
a skin condition in which pores become inflamed and clogged, causing pimples and spots
Example
Regular cleansing and a balanced diet can help reduce acne.
A1 adverb /əˈweɪ/

Away

Meaning
to or at a distance; not present; absent
Example
He walked away from the noisy crowd.
B1 adverb /ˌɔːl.təˈɡeð.ər/

Altogether

Meaning
completely; in total; considering everything
Example
The project cost altogether five thousand dollars.
C2 adjective /ˌæntɪˈmʌndeɪn/

antemundane

Meaning
Existing or occurring before the creation of the world.
Example
Some myths speak of an antemundane chaos before order was established.
C2 verb /ˌækwiˈɛs/

acquiesce

Meaning
to accept something reluctantly but without protest
Example
She decided to acquiesce to her parents’ wishes.
C1 adjective /ˈænsɪləri/

ancillary

Meaning
providing necessary support to the main system or organization
Example
The company provides ancillary services to the healthcare industry.
C1 noun əbˈzɔːrp.ʃən

absorption

Meaning
The process or action by which one thing absorbs or is absorbed by another.
Example
Plants help in the absorption of carbon dioxide.
C2 verb /ˈæd.ʌm.breɪt/

adumbrate

Meaning
to foreshadow or suggest something in an unclear or indirect way
Example
The report adumbrates future economic challenges.
C2 noun /ˈɑːrbər/

arbor

Meaning
a shady garden shelter formed by trees, climbing plants, or latticework
Example
They rested under the arbor covered with roses.
C2 noun /ˈiːdʒɪs/

aegis

Meaning
The protection, backing, or support of a particular person or organization.
Example
The project was carried out under the aegis of the United Nations.
B1 noun /ˈeə.rə.pleɪn/

Aeroplane

Meaning
a powered flying vehicle with fixed wings and a weight greater than that of the air it displaces
Example
The aeroplane took off smoothly from the airport runway.
A1 adverb /ˈɔːlsoʊ/

also

Meaning
in addition; too
Example
She sings beautifully and also plays the guitar.
C1 noun, verb /əˈsɛnt/

assent

Meaning
To agree to something, especially after careful consideration; an expression of approval.
Example
She nodded her head in silent assent.
C1 adjective eɪˈsɪŋ.krə.nəs

asynchronous

Meaning
Of or requiring a form of computer control timing protocol in which a specific operation begins upon receipt of an indication that the preceding operation has been completed.
Example
Asynchronous courses allow students to learn at their own pace.
B1 noun /ˈæŋkəl/

ankle

Meaning
the joint connecting the foot with the leg
Example
He twisted his ankle while playing football.
A2 noun /ədˈvɜːrtɪsmənt/

advertisement

Meaning
a public notice or announcement promoting a product, service, or event
Example
The advertisement attracted many new customers.
C1 adjective /əˈɡrɛəriən/

agrarian

Meaning
Related to farming, agriculture, or rural land.
Example
The country’s economy is still largely agrarian.
B2 adjective æmˈbɪɡ.ju.əs

ambiguous

Meaning
Having more than one possible meaning; unclear or vague.
Example
His statement was too ambiguous to understand.
B2 verb /əˈkjuːmjəleɪt/

accumulate

Meaning
to gather or collect things gradually over time
Example
She managed to accumulate a small fortune through wise investments.
B2 noun ədˈvɑːns.mənts

advancements

Meaning
The process of promoting or moving forward; development or improvement.
Example
Scientific advancements enhance global innovation.
B2 noun /əˌbriːviˈeɪʃən/

abbreviation

Meaning
a shortened form of a word or phrase
Example
NASA is an abbreviation for National Aeronautics and Space Administration.
C2 adjective /ˌækrəˈmætɪk/

achromatic

Meaning
without color; free from color
Example
The designer chose an achromatic palette of black, white, and gray.
A2 adverb /əˈkrɒs/

Across

Meaning
from one side to the other side of something; in every part of a place
Example
The bridge stretches across the river.
B2 adjective əˈkwætɪk

aquatic

Meaning
Growing or living in or near water; of or relating to water.
Example
Aquatic species are being endangered by pollution.
C1 adverb /əˈkjuːtli/

acutely

Meaning
in a sharp, intense, or severe way; with keen awareness
Example
She was acutely aware of the risks involved.
B1 noun /ˈeɪ.dʒənt/

agent

Meaning
A person who acts on behalf of another person or organization.
Example
The real estate agent showed us several houses.
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 noun /ˈeɪ.nəs/

Anus

Meaning
the opening at the end of the digestive tract through which waste leaves the body
Example
The doctor examined the patient's anus during the medical checkup.
B2 adjective, noun /ədˈvaɪzəri/

advisory

Meaning
(adjective) having the power to give advice but not to make sure that it is followed; (noun) an official announcement containing information or a warning
Example
The committee serves in an advisory capacity to the board of directors.
C1 verb /əˈdɔːrn/

adorn

Meaning
to decorate or add beauty to something
Example
The hall was adorned with flowers for the wedding.
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 adjective /ɔːˌθɒr.ɪˈteə.ri.ən/

authoritarian

Meaning
Demanding absolute obedience to authority; excessively controlling or strict in governance.
Example
Authoritarian parenting often limits a child's independence.
B2 noun /ˈænsestri/

ancestry

Meaning
one’s family origins or lineage
Example
He is proud of his royal ancestry.
C2 verb /əˈdʌltəreɪt/

adulterate

Meaning
to make something poorer in quality by adding another substance, usually of lower quality
Example
The company was fined for adulterating its products with cheap chemicals.
B2 noun ˌɔː.təˈmeɪ.ʃən

automation

Meaning
Replacing manual work with machines or software.
Example
Automation increases efficiency and reduces errors in production.
C2 noun /ˌæpəˈleɪʃən/

appellation

Meaning
a name or title
Example
The city has earned the appellation 'The Big Apple'.