aid
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B1 noun, verb /eɪd/

aid

Meaning
help or support, typically of a practical nature
Example
The volunteers provided aid to the flood victims.
B1 preposition/adverb /əˈkɔːrdɪŋ/

according

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

abnormal

Meaning
deviating from what is normal or usual, typically in a way that is undesirable
Example
The doctor noticed an abnormal growth in the patient’s lung.
C1 adjective /ˈɑːrɡjuəbl/

arguable

Meaning
open to debate or discussion; not certain and capable of being argued for or against
Example
It is arguable that technology has improved our quality of life.
A2 noun /ˌænɪˈvɜːrsəri/

anniversary

Meaning
the yearly recurrence of a date marking a past event
Example
They celebrated their wedding anniversary with a dinner.
B2 adjective /æpt/

apt

Meaning
Appropriate or suitable; having a natural tendency or quick to learn.
Example
She is an apt student who quickly understands new concepts.
B2 noun /əˈkɔːrdəns/

accordance

Meaning
agreement or harmony with something; compliance with rules, laws, or wishes
Example
The policy was implemented in accordance with international law.
B2 verb /əbˈzɔːrb/

absorb

Meaning
to take in or soak up a liquid, energy, or information
Example
The sponge absorbed all the water.
C2 verb /əˈɡriːv/

aggrieve

Meaning
to cause distress or make someone feel resentful
Example
She felt aggrieved by the unfair decision.
C1 noun ˌæɡ.rəʊˈkem.ɪ.kəl

agrochemical

Meaning
A chemical product used in agriculture, especially a pesticide or fertilizer.
Example
Excessive use of agrochemicals can degrade soil quality.
C2 noun /ˈæsɪˌteɪt/

acetate

Meaning
a salt or ester of acetic acid; a synthetic material used in textiles and film
Example
The company produces acetate fibers for clothing.
C2 verb /əˈɡlɒməˌreɪt/

agglomerate

Meaning
To collect or form into a mass or group.
Example
The dust particles began to agglomerate into larger clusters.
A2 verb /əkˈsɛpt/

accept

Meaning
to receive willingly; to believe or come to recognize
Example
She decided to accept the job offer.
C2 verb /əˈdʒʊər/

adjure

Meaning
to urge or command someone solemnly, often under oath or a strong sense of duty
Example
The witness was adjured to tell the truth in court.
B2 noun ˈæsɪd reɪn

acid rain

Meaning
Rainfall made acidic by atmospheric pollution, especially from industrial emissions.
Example
Acid rain damages crops and buildings.
B1 noun /ˌæv.əˈkɑː.doʊ/

Avocado

Meaning
a green pear-shaped fruit with creamy flesh and high fat content, often used in healthy diets
Example
Avocado is rich in healthy fats and is popular in salads and toast.
B1 verb /əˈdɒpt/

adopt

Meaning
To take something as your own, such as a child, idea, or method.
Example
They decided to adopt a child from the orphanage.
C2 adjective /ˈæsɪnaɪn/

asinine

Meaning
Extremely foolish or stupid.
Example
It was an asinine idea to drive into the storm without checking the weather.
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.
A2 verb /ˈædɪd/

added

Meaning
to join something to something else to increase its size, number, or amount
Example
She added sugar to her coffee.
C1 noun /əˈrɪəz/

arrears

Meaning
Money that is owed and should have been paid earlier.
Example
She was months in arrears with her electricity bill.
A1 noun /ɑːrt/

art

Meaning
the expression or application of human creative skill and imagination
Example
She studied art at the university.
C1 adjective /ˌeɪpəˈlɪtɪkəl/

apolitical

Meaning
not interested in or not connected with politics
Example
She prefers to stay apolitical and focus on her work.
A2 noun əˈpɔɪnt.mənts

appointments

Meaning
An arrangement to meet someone at a particular time and place; the action of assigning a job or role to someone.
Example
Government appointments follow meritocracy.
C1 adjective /ˈæŋ.ɡjə.lər/

Angular

Meaning
having sharp corners or edges; relating to angles
Example
The building has an angular design with sharp corners.
B2 noun əˈbʌndəns

abundance

Meaning
A very large quantity of something; plenty
Example
The abundance of vegetables in winter is remarkable.
B2 noun ˈæk.tɪv rɪˈkɔːl

Active recall

Meaning
A learning technique that involves actively trying to retrieve information from memory rather than passively reviewing material.
Example
Active recall improves long-term memory and retention.
C2 adjective /əˈbɪs.əl/

abyssal

Meaning
Related to or characteristic of the deep ocean, especially the zone below 4000 meters.
Example
Abyssal creatures survive in extreme pressure conditions.
B2 adjective, noun /ˈɛəriəl/

aerial

Meaning
As an adjective: existing or happening in the air. As a noun: an antenna for receiving radio or television signals.
Example
The pilot performed an amazing aerial maneuver.
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 adjective əˈdrɔɪt

adroit

Meaning
clever or skillful in using the hands or mind.
Example
She is adroit at solving complex problems.
C1 noun /ɔːˈrɔːrə/

aurora

Meaning
A natural display of lights in the sky, usually seen in polar regions.
Example
We traveled to Norway to see the northern aurora.
C1 noun /ɔːˈtɒmətən/

automaton

Meaning
A machine that works automatically; also refers to a person who behaves like a machine, without thinking.
Example
He worked like an automaton, without showing any emotion.
A1 adverb /əˈɡen/

Again

Meaning
once more; another time; in addition
Example
I need to read this book again to understand it better.
B2 noun, verb /ˈævəlæntʃ/

avalanche

Meaning
(noun) a mass of snow, ice, and rocks falling rapidly down a mountainside; a sudden overwhelming quantity; (verb) to descend like an avalanche
Example
The avalanche buried the mountain road under tons of snow.
C1 adjective /ˈɛərˌtaɪt/

airtight

Meaning
Completely sealed so that no air can get in or out.
Example
Store the cookies in an airtight container to keep them fresh.
C2 noun /əˈbeɪəns/

abeyance

Meaning
a state of temporary suspension or inactivity
Example
The project was held in abeyance until funds became available.
B1 noun /aɪl/

aisle

Meaning
a passage between rows of seats or shelves
Example
She walked down the aisle to find her seat.
C2 adjective /ˌæntɪˈθɛtɪkəl/

antithetical

Meaning
Directly opposed or contrasted; mutually incompatible.
Example
His views were antithetical to the values of the organization.
B1 noun /əkˈsɛptəns/

acceptance

Meaning
the act of agreeing to receive or undertake something offered
Example
Her acceptance of the award was met with applause.
C2 adjective /ˈæb.ə.rənt/

aberrant

Meaning
deviating from what is normal or expected; abnormal
Example
His aberrant behavior shocked everyone at the meeting.
B2 noun /ˌæktɪˈveɪʃən/

activation

Meaning
the act of making something start functioning
Example
The activation of the system took longer than expected.
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 adjective /ˌæl.ɡəˈrɪð.mɪk/

algorithmic

Meaning
Based on or using algorithms; relating to mathematical rules or procedures.
Example
Algorithmic processes power artificial intelligence systems.
A2 adjective /ˈɔːfəl/

awful

Meaning
very bad or unpleasant
Example
The weather was awful during our trip.
C2 noun /əˈkwɪtəns/

acquittance

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

arable

Meaning
suitable for growing crops or farming
Example
The farmer purchased arable land to expand his crops.
C1 noun /ˈæb.stɪ.nəns/

abstinence

Meaning
the practice of restraining oneself from indulging in something, typically alcohol or sex
Example
His doctor advised abstinence from alcohol for better health.
C2 verb /əˈbreɪd/

abrade

Meaning
to scrape or wear away the surface by friction or erosion
Example
The rough cloth can easily abrade the skin.
B2 adverb /ˈæk.jə.rət.li/

Accurately

Meaning
in an exact way, without any mistakes; precisely; correctly
Example
She accurately predicted the outcome of the election.
C2 noun /ænˈtɪlədʒi/

antilogy

Meaning
A contradiction in terms or ideas; inconsistency in speech or writing.
Example
The politician's statement was criticized for its antilogy.
B2 verb ədˈhɪər

adhere

Meaning
To stick firmly to something or stay attached.
Example
Neutrons adhere to protons.
B2 adjective /ˈæfluənt/

affluent

Meaning
having a great deal of money; wealthy
Example
She grew up in an affluent neighborhood.
B1 adjective /əˈtætʃt/

attached

Meaning
joined or fastened to something; emotionally connected or fond of someone or something
Example
The file is attached to the email.
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.
C2 adjective /ˌæp.rɪˈhen.sə.bəl/

Apprehensible

Meaning
able to be understood or grasped; comprehensible
Example
The complex theory became apprehensible after the professor's explanation.
C2 noun /ˈɔːldərmən/

alderman

Meaning
An elected member of a municipal council in certain cities and towns.
Example
The alderman proposed a new plan for community parks.
C2 noun /əˈmʊr/

amour

Meaning
A secret or illicit love affair.
Example
The novel tells the story of a forbidden amour between two characters.
C1 adjective /ɑːrˈkeɪn/

arcane

Meaning
understood by few; mysterious or secret
Example
The professor’s lecture was full of arcane details that only specialists could follow.
C2 verb /əˈbeɪs/

abase

Meaning
to belittle or degrade someone
Example
He refused to abase himself before the king.
C2 noun /ˈæmjʊlət/

Amulet

Meaning
an ornament or small piece of jewelry thought to give protection against evil, danger, or disease
Example
She wore a silver amulet around her neck for good luck.
B2 noun /ˌæk.jʊˈzeɪ.ʃən/

accusation

Meaning
A statement that someone has done something wrong or illegal.
Example
She made an accusation of theft against her colleague.
C2 noun /ænˈtɪfəni/

antiphony

Meaning
a form of music in which two or more groups or choirs sing alternately in response to each other
Example
The cathedral's architecture was designed to enhance the effect of antiphony.
C1 adjective /ˈæv.ɪd/

avid

Meaning
having an eager desire or enthusiasm for something
Example
She is an avid reader of mystery novels.
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.
C1 noun /ˈænvɪl/

anvil

Meaning
A heavy iron block used by blacksmiths for hammering and shaping metal.
Example
The blacksmith placed the hot iron on the anvil.
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.
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.
B2 noun /əˈmɛnəti/

amenity

Meaning
a useful or pleasant facility or feature of a place
Example
The apartment has every amenity needed for comfortable living.
C1 noun /əˈduː/

ado

Meaning
a fuss or unnecessary activity; trouble or difficulty
Example
Without further ado, let’s begin the ceremony.
B1 noun/verb /əˈwɔːrd/

award

Meaning
a prize or recognition given for an achievement; to give a prize or recognition
Example
She received an award for her outstanding performance.
C2 noun /əˈpɒθəˌkɛri/

apothecary

Meaning
A historical term for a person who prepared and sold medicines and drugs.
Example
The village apothecary provided remedies for many common illnesses.
C1 noun ˈæk.si.əm

axiom

Meaning
A statement or principle that is considered true and does not require proof.
Example
Actions speak louder than words is a well-known axiom.
A1 verb (first person singular of 'be') /æm/

am

Meaning
the first person singular present tense of 'be'
Example
I am happy today.
C1 noun /əˈsem.bli ˈseʃ.ən/

assembly session

Meaning
A formal meeting where representatives gather to discuss and make decisions on important matters.
Example
The assembly session discussed global challenges.
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.
B2 verb /əˈsɛmbəl/

assemble

Meaning
to gather or bring together in one place
Example
The students assembled in the hall for the meeting.
B2 noun ˌɔː.təˈmeɪ.ʃən

automation

Meaning
Replacing manual work with machines or software.
Example
Automation increases efficiency and reduces errors in production.
B2 adverb /əˈdɪʃənəli/

additionally

Meaning
in addition to what has been said or done
Example
Additionally, we offer discounts for early bookings.
B1 noun /ədˌmɪn.ɪˈstreɪ.ʃən/

Administration

Meaning
the process of managing or organizing something; a government or organization
Example
The university administration announced new policies.
C1 verb /əˈdʒɔɪn/

adjoin

Meaning
To be next to and joined with something.
Example
Their house adjoins the park.
C1 noun /ˌænəsˈθetɪk/

anesthetic

Meaning
A substance that causes loss of sensation or consciousness, especially used during surgery.
Example
The doctor administered a local anesthetic before stitching the wound.
B1 adjective /ˌækəˈdɛmɪk/

academic

Meaning
related to education, learning, or scholarly activities
Example
She has an outstanding academic record.
C2 noun /əˌbɑː.məˈneɪ.ʃən/

abomination

Meaning
a thing that causes disgust or hatred
Example
Slavery was considered an abomination.
A2 verb /əˈtend/

attend

Meaning
to be present at; to give attention to; to take care of
Example
I will attend the conference next week.
B1 noun /əˈtendəns/

Attendance

Meaning
the action or state of going regularly to or being present at a place or event
Example
The teacher takes attendance at the beginning of each class.
B2 noun /ˈɑːr.mər/

Armour

Meaning
protective covering worn by soldiers; metal plating for military vehicles
Example
The knight wore heavy armour to protect himself in battle.
C2 noun /ˌæk.rəˈfoʊ.bi.ə/

acrophobia

Meaning
An extreme or irrational fear of heights.
Example
Her acrophobia prevented her from climbing the tall building.
B2 noun /æʃ/

ash

Meaning
the powdery residue left after the burning of a substance
Example
After the fire, only ash remained of the house.
C2 noun /ˌæntɪˈtɒksɪn/

antitoxin

Meaning
A substance that neutralizes a specific toxin in the body.
Example
The doctor administered an antitoxin to counter the snake venom.
C2 noun /əˈklɪvɪti/

acclivity

Meaning
An upward slope or incline on the ground.
Example
The hikers struggled as they climbed the steep acclivity.
A1 noun /eər/

Air

Meaning
the invisible gaseous substance surrounding the earth; a mixture mainly of oxygen and nitrogen
Example
Fresh air is essential for good health.
B1 verb /əˈweɪk/

awake

Meaning
to stop sleeping; to become conscious or alert
Example
I awake every morning at six o'clock.
B2 adjective /əˈkaʊntəbl/

accountable

Meaning
Required or expected to justify actions or decisions; responsible.
Example
Staying accountable helps reduce delays.
C2 adjective /ɔːˈrɪfərəs/

auriferous

Meaning
Containing or producing gold.
Example
The miners discovered an auriferous vein in the mountains.
C1 adjective /ˈæmərəs/

amorous

Meaning
Showing, feeling, or relating to romantic love or desire.
Example
He sent her an amorous letter filled with declarations of love.
C1 noun /əˈdʒɪl.ɪ.ti/

agility

Meaning
Ability to work quickly and easily, both physically and mentally.
Example
Mental agility is essential for problem-solving.
B1 noun /ˈɔː.θər/

Author

Meaning
a person who writes books, articles, or other written work
Example
The author spent three years writing her bestselling novel.
C2 noun /ˌɔːltərˈkeɪʃən/

altercation

Meaning
a noisy argument or quarrel
Example
There was a brief altercation between the two drivers.
C2 noun /ˈeə.rəm/

Arum

Meaning
a plant with large arrow-shaped leaves and a white spathe, also known as taro
Example
Arum leaves are commonly used in Bengali cuisine for cooking.
B2 noun əˌkaʊntəˈbɪləti

accountability

Meaning
The fact or condition of being accountable; responsibility.
Example
Accountability is key to maintaining trust in any system.
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.
C2 adjective /əˈskjuː/

askew

Meaning
Not in a straight or level position; crooked or tilted.
Example
The picture on the wall hung slightly askew.
C2 noun /ˌæntiˈsaɪkloʊn/

anticyclone

Meaning
A weather system with high atmospheric pressure at its center, usually bringing calm and clear conditions.
Example
An anticyclone brought sunny weather across the region.
B2 verb /əˈspaɪər/

aspire

Meaning
to have a strong desire to achieve something
Example
Many students aspire to study abroad.
B2 verb /ˈælaɪ/

ally

Meaning
To unite or form a connection or partnership with another person, group, or nation.
Example
The two countries decided to ally against their common enemy.
B1 adverb /ˌɔːtəˈmætɪkli/

automatically

Meaning
without human control or intervention; done by itself
Example
The door closes automatically after you enter.
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 adjective /əˈfɔːrsed/

Aforesaid

Meaning
mentioned before; previously stated
Example
The aforesaid conditions must be met before approval.
A2 adjective, adverb, interjection /ɔːlˈraɪt/

alright

Meaning
satisfactory or acceptable; safe or unharmed; used to express agreement or acknowledgment
Example
Everything is going to be alright.
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.
B2 verb /əˈkʌmplɪʃ/

accomplish

Meaning
to achieve or complete successfully
Example
She managed to accomplish all her goals for the year.
B2 verb əˈkwaɪər

acquire

Meaning
To gain or obtain something, especially knowledge or skills, through effort or experience.
Example
Volunteers acquire new skills through their experiences.
A1 noun ækˈtɪv.ɪ.ti

Activities

Meaning
A thing that a person or group does or has done.
Example
Productive activities drive progress.
B2 adjective /əˈkuːstɪk/

acoustic

Meaning
relating to sound or the sense of hearing; not amplified by electrical means
Example
We recorded an acoustic version of the song in a quiet room.
C2 adjective /ˌæf.əˈrɪs.tɪk/

aphoristic

Meaning
expressed in the style of a short, witty saying
Example
Her writing style is concise and aphoristic.
C2 noun /ˌænɪmædˈvɜːʒən/

animadversion

Meaning
Strong criticism or censure.
Example
The policy attracted severe animadversion from the public.
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.