aperture
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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.
C1 noun /ˈɔːnɪŋ/

awning

Meaning
a sheet of canvas or material stretched on a frame to shelter a place from the sun or rain
Example
We sat under the awning to avoid the heavy rain.
C1 noun /ˈeɪθiɪzəm/

atheism

Meaning
The belief that there is no God or gods.
Example
He declared his atheism openly despite social pressure.
A1 noun /ˈeɪprɪl/

april

Meaning
the fourth month of the year in the Gregorian calendar
Example
April is known for its pleasant spring weather.
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.
B2 adjective /əˈlɑːrmɪŋ/

alarming

Meaning
Worrying or disturbing; causing concern or fear.
Example
The unemployment rate among youth is alarming.
B2 noun ɔːɡˈmɛn.tɪd riˈæl.ɪ.ti

augmented reality

Meaning
Technology that overlays digital information on the real world environment.
Example
Gaming has been transformed by augmented reality.
C2 noun /əbˈdʌktər/

abductor

Meaning
a person who kidnaps or forcibly takes someone away
Example
The police arrested the abductor after a nationwide search.
A1 adverb /əˈraʊnd/

Around

Meaning
in a circle; on all sides; in the vicinity; approximately
Example
Look around and you will see many beautiful flowers.
B2 adjective + noun ˈædvɜːrs ɪˈfekts

adverse effects

Meaning
Negative or harmful impacts that result from an action or condition.
Example
Plastic usage has adverse effects on the environment.
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.
B1 adjective /ədˈvɛnʧərəs/

adventurous

Meaning
Willing to take risks or try out new methods, ideas, or experiences.
Example
They participated in adventurous activities like kayaking and hiking.
A2 adjective /əˈnɔɪɪŋ/

annoying

Meaning
causing irritation or mild anger; bothersome or troublesome
Example
The constant noise from the street was extremely annoying.
C2 noun /ˌædʒʊˈreɪʃən/

adjuration

Meaning
a solemn urging or appeal
Example
The priest made an adjuration for peace and unity.
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.
B1 noun /əˈkaʊnt/

Account

Meaning
a record of money received and paid out; a report or description of an event
Example
She opened a savings account at the bank.
B2 noun /ˈædvərtaɪzər/

advertiser

Meaning
a person or company that advertises a product, service, or event
Example
The advertiser paid millions for a Super Bowl commercial spot.
C1 adjective /əˈnæl.ə.ɡəs/

analogous

Meaning
Comparable in certain respects, typically in a way that makes clearer the nature of things being compared.
Example
The human brain is analogous to a supercomputer.
C1 adverb /ˈæm.ɪ.kə.bli/

Amicably

Meaning
in a friendly way without anger or resentment
Example
The divorce was settled amicably between both parties.
B1 noun əˈwɛrnɪs

Awareness

Meaning
Knowledge or understanding about important issues, particularly environmental conservation.
Example
Spreading awareness is essential to save butterflies.
B1 noun əˈreɪndʒmənt

arrangement

Meaning
The way things are organized, positioned, or structured.
Example
The arrangement of protons in the nucleus is critical.
A2 adverb /ˈɔːlmoʊst/

almost

Meaning
very nearly, but not exactly or completely
Example
He almost missed the train.
A1 preposition, adverb /əˈbaʊt/

about

Meaning
concerning; on the subject of; approximately
Example
We talked about the new project yesterday.
B1 adverb /ˈæŋɡrɪli/

angrily

Meaning
in a manner showing anger or strong displeasure
Example
She spoke angrily when she heard the news.
B2 noun /ˈæktɪˌvɪzəm/

activism

Meaning
The policy or action of using vigorous campaigning to bring about political or social change.
Example
Her environmental activism inspired many young people to take action.
C1 adjective /ˈædʒ.aɪl/

agile

Meaning
able to move quickly and easily; quick and adaptable in thinking or action
Example
The startup team was agile in responding to market changes.
B1 noun /ˈæmətər/

amateur

Meaning
A person who engages in a pursuit, especially a sport or art, on an unpaid basis.
Example
The painting looked impressive, even though it was done by an amateur.
B2 verb /əˈplɔːd/

applaud

Meaning
to show approval by clapping or expressing admiration
Example
The audience applauded the performance.
C2 noun /ˌɑːrbəˈriːtəm/

arboretum

Meaning
a place where trees, shrubs, and plants are grown for scientific study or public display
Example
We visited the city’s arboretum to learn about exotic trees.
C2 noun /əˈrɪə/

arrear

Meaning
A debt or payment that is overdue and unpaid.
Example
He was sued for an arrear of rent.
C2 noun /ˈɛəri/

aerie

Meaning
A large nest of a bird of prey, especially an eagle, typically built high in a tree or on a cliff.
Example
The eagle built its aerie on the high cliff.
B2 adverb /ˌæksɪˈdɛntəli/

accidentally

Meaning
happening by chance or unexpectedly
Example
He accidentally dropped the glass.
B2 noun /əˈstrɒnəmər/

astronomer

Meaning
a scientist who studies the stars, planets, and the universe
Example
The astronomer observed the new comet through his telescope.
C2 noun /ˌɑːrtʃˈdiːkən/

archdeacon

Meaning
A senior clergyman in the Christian Church ranking below a bishop.
Example
The archdeacon assisted the bishop in administrative duties.
C2 noun /ˌæbsəˈluːʃən/

absolution

Meaning
formal release from guilt, obligation, or punishment
Example
The priest granted him absolution for his sins.
B2 noun ˌæn.tiˈɒk.sɪ.dənts

antioxidants

Meaning
A substance that may prevent or delay some types of cell damage.
Example
Fruits and vegetables are rich in antioxidants.
B2 noun /əkˈnɒlɪdʒmənt/

acknowledgement

Meaning
the act of recognizing or accepting something as true or valid; an expression of gratitude or recognition
Example
She received an acknowledgement for her contribution to the project.
B1 noun /ˈɑː.kɪ.tekt/

architect

Meaning
a person who designs buildings and oversees their construction
Example
The architect designed a modern office building.
C1 noun ænˈtɪk.wə.ti

antiquity

Meaning
The ancient past, especially the period of classical and other human civilizations before the Middle Ages.
Example
The ruins are a reminder of the city's antiquity.
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 noun /əˌveɪləˈbɪləti/

availability

Meaning
the state of being able to be used or obtained
Example
The availability of clean water is crucial for health.
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.
C2 noun /əˈreɪ.bi.ən ˈdʒæz.mɪn/

Arabian Jasmine

Meaning
A fragrant white flower native to South and Southeast Asia, commonly used in perfumes and religious ceremonies
Example
The Arabian jasmine filled the garden with its sweet fragrance.
C1 adjective /əˈnɒmələs/

anomalous

Meaning
deviating from what is standard, normal, or expected
Example
Scientists observed an anomalous result during the experiment.
B2 adjective /əˈbjuːsɪv/

abusive

Meaning
extremely offensive or insulting; involving physical or verbal harm
Example
She left her job because of her abusive boss.
B2 verb /əˈmend/

amend

Meaning
to make changes or corrections to improve something; to modify
Example
They amended the contract to include new terms.
B2 noun /ˈælkəhɒlɪzəm/

alcoholism

Meaning
A chronic disease characterized by uncontrolled drinking and preoccupation with alcohol.
Example
His alcoholism affected both his health and his family life.
A2 verb /əˈtækt/

attacked

Meaning
physically or verbally assaulted someone or something; launched an aggressive action against a target
Example
The soldiers attacked the enemy at dawn.
C2 adjective /ˌænθrəpəˈmɔːrfɪk/

anthropomorphic

Meaning
attributing human characteristics to non-human things, like animals or objects
Example
The cartoon shows an anthropomorphic cat walking on two legs.
A2 noun /əˈpɔɪnt.mənt/

Appointment

Meaning
an arrangement to meet someone at a particular time and place; the action of appointing someone to a job or position
Example
I have a doctor's appointment at 3 PM.
C2 noun /əˈkjuːtnəs/

acuteness

Meaning
sharpness of mind or senses; severity or intensity of a condition
Example
Her acuteness allowed her to notice details others missed.
B2 noun, verb /əˈsɔːlt/

assault

Meaning
a physical attack or to attack someone violently
Example
He was charged with assault after the fight.
B2 adjective /əˈɡriːəbl/

Agreeable

Meaning
pleasant; enjoyable; delightful; willing to agree
Example
The weather is very agreeable today.
C2 noun /əˈnjuː.ɪ.ti/

annuity

Meaning
a fixed sum of money paid to someone each year, typically for the rest of their life
Example
She receives an annuity from her late husband's insurance policy.
C1 noun /ˈæmpɛər/

ampere

Meaning
A unit of electric current in the International System of Units (SI), symbolized as A.
Example
The current flowing through the wire is measured in amperes.
C1 noun /ˈækəleɪd/

accolade

Meaning
An award, honor, or expression of praise.
Example
She received an accolade for her outstanding performance.
C2 noun /ˈætəmaɪzər/

atomizer

Meaning
A device that sprays liquid into a fine mist.
Example
She used an atomizer to apply the perfume evenly.
C1 noun /ɑːrˈmɑːdə/

armada

Meaning
A large fleet of warships.
Example
The Spanish Armada sailed against England in 1588.
C1 noun ɔːˈstɛr.ɪ.ti

austerity

Meaning
Simple and disciplined lifestyle, avoiding luxury.
Example
The government implemented austerity measures to reduce expenses.
C1 adjective /ˌæl.ɡəˈrɪð.mɪk/

algorithmic

Meaning
Based on or using algorithms; relating to mathematical rules or procedures.
Example
Algorithmic processes power artificial intelligence systems.
B1 noun /əˈdʒen.də/

Agenda

Meaning
a list of items to be discussed at a meeting; a plan of action
Example
The meeting agenda includes budget discussions.
A2 noun /ækˈtɪv.ə.ti/

Activity

Meaning
something that you do for interest or pleasure, or in order to achieve a particular aim
Example
Physical activity is important for good health.
C1 adjective /æbˈdɑː.mə.nəl/

abdominal

Meaning
relating to the abdomen (the part of the body between the chest and pelvis)
Example
He complained of severe abdominal pain.
C2 noun /ˈɑːrɡoʊ/

argot

Meaning
the specialized vocabulary or jargon of a particular group, especially one with a common interest or occupation
Example
The thieves communicated in an argot that outsiders could not understand.
C1 noun, adjective /ˌæntiˈsɛptɪk/

antiseptic

Meaning
A substance that prevents the growth of disease-causing microorganisms; clean and free from germs.
Example
The nurse applied an antiseptic to the wound.
B2 noun /ˈæŋkər/

Anchor

Meaning
a heavy object used to moor a vessel to the sea bottom; a person or thing that provides stability or confidence
Example
The ship dropped its anchor in the harbor.
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.
C2 verb əˈmiːljəreɪt

ameliorate

Meaning
To make better; improve or enhance something.
Example
The new policies are designed to ameliorate living conditions.
C2 noun (plural) /əˈspɜːr.ʒənz/

aspersions

Meaning
Critical or slanderous remarks; multiple attacks on reputation.
Example
The politician rejected the aspersions cast against him.
C1 adverb /ˈeɪ.mi.ə.bli/

Amiably

Meaning
in a friendly and pleasant manner
Example
They discussed the issue amiably without any arguments.
B1 noun /ˈækses/

Access

Meaning
the ability, right, or permission to approach, enter, or pass to and from a place
Example
Students have access to the library 24 hours a day.
C1 noun /ˈɑːrmfʊl/

armful

Meaning
As much as can be carried in one or both arms.
Example
She carried an armful of books into the library.
C1 noun /ˈæntɪˌdoʊt/

antidote

Meaning
A substance that neutralizes the effects of a poison; something that relieves or counteracts.
Example
The doctor quickly administered an antidote to the snake venom.
B2 noun /ˈɑːrtɪzən/

artisan

Meaning
a skilled craftsperson who makes things by hand
Example
The artisan crafted a beautiful wooden chair.
A2 noun /ˈɑːrmi/

army

Meaning
a large organized military force trained for war
Example
The army protected the border from attack.
B2 adjective ədˈmɪn.ɪ.strə.tɪv

administrative

Meaning
Relating to the running of a business, organization, etc.; concerned with or relating to management or administration.
Example
Administrative reforms improve efficiency.
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.
B2 noun /ˈɑːrm.pɪt/

Armpit

Meaning
the hollow area under the arm where it joins the shoulder
Example
He applied deodorant to his armpit.
B2 adjective + noun æmˈbɪʃəs ɪnˈdevər

ambitious endeavor

Meaning
A bold and determined attempt to achieve something challenging.
Example
Artemis is an ambitious endeavor in space exploration.
C1 verb /əˈdʒɔɪn/

adjoin

Meaning
To be next to and joined with something.
Example
Their house adjoins the park.
B2 adjective /ˈɑːrbɪˌtrɛri/

arbitrary

Meaning
based on random choice or personal whim, rather than reason or system
Example
The teacher's arbitrary grading upset many students.
C2 noun /əˈsper.ɪ.ti/

asperity

Meaning
Harshness of tone, manner, or surface.
Example
She spoke with asperity when she was interrupted.
C2 noun /ˈæl.ɪ.mənt/

aliment

Meaning
food or nourishment that sustains life
Example
Fruits and vegetables are important aliments for a healthy body.
B1 adverb /ˌæbsəˈluːtli/

Absolutely

Meaning
completely; totally; without exception
Example
I absolutely agree with your decision.
B2 noun/verb /ɔːˈdɪʃən/

audition

Meaning
A trial performance by an actor, singer, or musician to demonstrate suitability for a role.
Example
She auditioned for the lead role in the school play.
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.
B1 verb /əˈsɛs/

assess

Meaning
to evaluate or estimate the nature, ability, or quality of something
Example
The teacher assessed the students' progress.
A1 adverb /əˈweɪ/

Away

Meaning
to or at a distance; not present; absent
Example
He walked away from the noisy crowd.
C2 adjective /ˌæd.vɛnˈtɪʃ.əs/

adventitious

Meaning
Happening by chance or accident, not planned.
Example
His success was partly due to adventitious circumstances.
C2 noun /əˈkwɪtəns/

acquittance

Meaning
a written receipt acknowledging payment or discharge of a debt
Example
He demanded an acquittance after paying the loan.
B2 adjective /əˈdʒʌstəbəl/

Adjustable

Meaning
নিয়মযোগ্য; পরিবর্তন-সাধ্য; সমন্বয়যোগ্য;
Example
This chair has an adjustable height feature.
A1 adverb /əˈɡoʊ/

ago

Meaning
Used to indicate how long before the present something happened.
Example
I met her two years ago.
B2 noun /əˈlaʊəns/

Allowance

Meaning
a sum of money paid regularly to a person; permission to do something
Example
Children receive a weekly allowance for helping with chores.
A2 verb /əˈvɔɪd/

avoid

Meaning
To keep away from or stop oneself from doing something.
Example
He tries to avoid junk food.
A2 verb /ˈɑːrɡjuː/

argue

Meaning
to have a disagreement; to present reasons for or against
Example
They often argue about politics.
B2 verb /ˈæmplɪˌfaɪ/

amplify

Meaning
to make sounds louder; to make something larger or more significant
Example
The microphone amplifies her voice.
C1 noun /ˈɑːr.tər.i/

Artery

Meaning
a blood vessel that carries blood away from the heart to other parts of the body
Example
The doctor checked the pulse in his artery.
C1 verb /ˈæn.ɛks/

annex

Meaning
To take control of a territory and add it to one's own.
Example
The empire annexed the neighboring kingdom after the war.
C2 verb /əˈsweɪdʒ/

assuage

Meaning
To make an unpleasant feeling less intense; to ease or relieve.
Example
The kind words helped assuage her anxiety.
B1 preposition/adverb /əˈkɔːrdɪŋ/

according

Meaning
As stated by or in agreement with.
Example
According to the report, sales increased last quarter.
B2 verb /əˈkʌstəm/

accustom

Meaning
to make someone familiar with something through regular experience or use
Example
It took him a while to accustom himself to the new environment.
B1 noun ˌɑː.tɪˈfɪʃ.əl ɪnˈtɛl.ɪ.dʒəns

artificial intelligence

Meaning
The theory and development of computer systems able to perform tasks normally requiring human intelligence.
Example
Artificial intelligence is revolutionizing education through smart tutoring.
C2 noun /ˈɔːspɪs/

auspice

Meaning
A sign, omen, or divine token; also refers to protection or support.
Example
The project was launched under the auspice of the government.
B2 verb, noun, adjective /ˈɔːltərnət/ (adj, noun), /ˈɔːltərˌneɪt/ (verb)

alternate

Meaning
to occur in turn repeatedly; to take turns; also, a substitute or replacement
Example
The students alternate between online and offline classes.
C1 adjective /ədˈhiːsɪv/

Adhesive

Meaning
আঠালো; চটচটে;
Example
The adhesive tape stuck firmly to the wall.
A1 adjective, adverb /əˈloʊn/

alone

Meaning
having no one else present; on one's own
Example
She prefers to live alone in her apartment.
C2 noun /ˌæriˈviːst/

arriviste

Meaning
A person who has recently gained wealth or status but is considered arrogant or socially unsophisticated.
Example
The business world is full of ambitious arrivistes.
B2 verb ədˈhɪər

adhere

Meaning
To stick firmly to something or stay attached.
Example
Neutrons adhere to protons.
C1 noun /əˈrɪs.tə.kræt/

Aristocrat

Meaning
a member of the aristocracy; a person of noble rank or birth
Example
The aristocrat lived in a magnificent castle.
B2 verb /əˈsɜːrt/

assert

Meaning
to state a fact or belief confidently and forcefully; to insist upon rights or claims
Example
She decided to assert her authority in the meeting.
C2 noun /ˌæpəˈzɪʃən/

apposition

Meaning
a grammatical construction in which two elements are placed side by side, with one explaining the other
Example
In the phrase 'my friend John,' the word 'John' is in apposition to 'my friend.'
C2 verb /ˈæmbl/

amble

Meaning
To walk at a slow, relaxed pace.
Example
They amble through the park on Sunday mornings.
C1 noun /əˈboʊd/

abode

Meaning
a place of residence; a home
Example
They invited us to their humble abode.
A2 noun /ədˈvæn.tɪdʒ/

Advantage

Meaning
a condition or circumstance that puts one in a favorable position; a benefit
Example
Having a college degree gives you an advantage in the job market.
C2 noun /əˈrɔɪ.oʊ/

arroyo

Meaning
A dry creek or stream bed that temporarily fills with water after heavy rain.
Example
After the storm, the arroyo quickly filled with rushing water.
C2 noun /ˈæpəfθɛm/

apophthegm

Meaning
A short, pithy, and instructive saying or maxim.
Example
She always had a witty apophthegm to share at meetings.
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.
B2 noun /əkˌsɛs.əˈbɪl.ə.ti/

accessibility

Meaning
Accessibility or availability, easy availability of any place or service.
Example
Improved accessibility helps people with disabilities.
C1 adjective /ˈɔːbərn/

auburn

Meaning
reddish-brown in color, especially used to describe hair
Example
She has long auburn hair that shines in the sunlight.
A2 noun əˈɡriː.mənt

agreement

Meaning
A negotiated arrangement between parties as to a course of action.
Example
The agreement was accepted by all countries.
B1 verb /əˈsoʊsiˌeɪt/

associate

Meaning
to connect or link things together; to spend time with someone
Example
I associate this song with summer.