altruism
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C1 noun ˈæltruɪzəm

altruism

Meaning
The belief in or practice of disinterested and selfless concern for the well-being of others.
Example
His altruism motivated others to volunteer.
C1 noun əˈtrɪʃ.ən

attrition

Meaning
The process of reducing something's strength or effectiveness through sustained attack or pressure.
Example
The company faced high employee attrition due to job dissatisfaction.
B2 verb /əˈraɪz/

arise

Meaning
to begin to exist or to happen
Example
Problems may arise if you don't plan ahead.
C2 noun /ˈiːɒn/ or /ˈiːən/

aeon

Meaning
An indefinitely long period of time; an age or eternity.
Example
Dinosaurs roamed the Earth millions of aeons ago.
C1 noun /əˈboʊd/

abode

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

airline

Meaning
A company that provides regular flights for passengers and goods.
Example
The airline announced a discount on international tickets.
C2 noun /ˈænti/

ante

Meaning
a stake put up by a player in poker or similar games before receiving cards; also used figuratively to mean an initial investment or contribution
Example
Each player placed an ante before the game began.
A2 adjective /əˈnɔɪɪŋ/

annoying

Meaning
causing irritation or mild anger; bothersome or troublesome
Example
The constant noise from the street was extremely annoying.
C1 noun /æbˈdʌk.ʃən/

abduction

Meaning
the act of taking someone away illegally by force; kidnapping
Example
The police are investigating the abduction of the child.
C1 noun /əˈkwɪtl/

acquittal

Meaning
a judgment that a person is not guilty of the crime with which they have been charged
Example
The acquittal of the accused shocked the public.
A1 article /æn/

an

Meaning
used before a noun to refer to a non-specific item that begins with a vowel sound
Example
She ate an apple for breakfast.
B1 noun /əˈpruː.vəl/

approval

Meaning
official permission or agreement for something
Example
The project received government approval.
C2 adjective /ˌɑːrbəˈrɛsənt/

arborescent

Meaning
having the appearance or characteristics of a tree; tree-like
Example
The coral had an arborescent form that resembled a miniature forest.
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 /ˈækjərəsi/

Accuracy

Meaning
the quality of being correct or precise; exactness
Example
The accuracy of the measurements is very important.
C1 adjective /ˌeɪpəˈlɪtɪkəl/

apolitical

Meaning
not interested in or not connected with politics
Example
She prefers to stay apolitical and focus on her work.
C1 verb /əˈbriːvieɪt/

abbreviate

Meaning
To shorten a word, phrase, or text by leaving out letters or parts.
Example
We often abbreviate 'Doctor' to 'Dr'.
B2 adjective /ˈædvɜːrs/

Adverse

Meaning
harmful; unfavorable; opposing; negative
Example
The adverse weather conditions forced them to cancel the event.
A2 preposition /əˈɡɛnst/ or /əˈɡeɪnst/

against

Meaning
In opposition to; contrary to; touching or resting on.
Example
They voted against the proposal.
A1 preposition, adverb /əˈlɔːŋ/

along

Meaning
moving in a constant direction on (a road, path, or surface)
Example
We walked along the river.
C2 adjective /ˈæn.ə.daɪn/

anodyne

Meaning
Not likely to cause offense; bland or harmless. Also refers to something that relieves pain.
Example
The speaker’s anodyne remarks avoided controversy.
C2 noun /ˈævərɪs/

avarice

Meaning
extreme greed for wealth or material gain
Example
His avarice led him to exploit his workers.
B2 noun əˈmend.mənts

amendments

Meaning
Changes or additions made to improve a text, law, or constitution.
Example
Amendments reflect evolving public needs.
C1 noun əˌkred.ɪˈteɪ.ʃən

accreditation

Meaning
The action or process of officially recognizing someone or something as having a particular status or being qualified to perform a particular activity.
Example
Accreditation ensures institutional credibility.
C1 adjective /ˈɑːr.dənt/

Ardent

Meaning
very enthusiastic; passionate; fervent
Example
She is an ardent supporter of environmental conservation.
C2 noun /ˌeɪd də ˈkæmp/

aide-de-camp

Meaning
A military officer acting as a confidential assistant to a senior officer.
Example
The general was accompanied by his aide-de-camp during the ceremony.
C2 adjective /ˌæntɪdəˈluːviən/

antediluvian

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

alibi

Meaning
A claim or piece of evidence that one was elsewhere when an act, typically a crime, was committed.
Example
She had a strong alibi that proved she was at the cinema during the theft.
C2 noun /ˈeɪ.pi.ə.rɪst/

apiarist

Meaning
a person who keeps and tends bees for honey production
Example
The apiarist collected fresh honey from the hives.
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.
B2 adjective /əˈlaɪd/

Allied

Meaning
joined by agreement or treaty; associated; connected
Example
The allied forces worked together during the war.
A2 noun /ədˈvɜːrtɪsmənt/

advertisement

Meaning
a public notice or announcement promoting a product, service, or event
Example
The advertisement attracted many new customers.
C2 noun /ˈætəmaɪzər/

atomizer

Meaning
A device that sprays liquid into a fine mist.
Example
She used an atomizer to apply the perfume evenly.
B1 noun /əˈtʃiːvmənt/

achievement

Meaning
Something that has been successfully completed or accomplished through effort or skill.
Example
Graduating from university was her greatest achievement.
B1 noun /ˈɑːrtwɜːrk/

artwork

Meaning
a piece of art, such as a painting, sculpture, or drawing
Example
The gallery displayed an impressive artwork by a local artist.
C2 adjective /əˈbɑː.mə.nə.bəl/

abominable

Meaning
causing moral revulsion; extremely unpleasant
Example
The prisoners were kept in abominable conditions.
B1 verb /əˈproʊtʃ/

approach

Meaning
to move closer to someone or something; to deal with a situation or problem
Example
The teacher approached the student to offer help.
C2 noun /əˈpɜːrtənəns/

appurtenance

Meaning
an accessory or supplementary part of something
Example
The garage is an appurtenance of the main house.
A2 adverb /æz ˈjuː.ʒu.əl/

As usual

Meaning
in the way that is normal or typical; customarily
Example
As usual, he arrived late to the meeting.
B1 adverb /ˌæbsəˈluːtli/

Absolutely

Meaning
completely; totally; without exception
Example
I absolutely agree with your decision.
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.
C2 adjective /eɪˈrɪðmɪk/

arrhythmic

Meaning
Lacking a regular rhythm or beat.
Example
The patient had an arrhythmic heartbeat.
B2 noun ˈæɡ.rɪ.kʌl.tʃɚ

agriculture

Meaning
The science or practice of farming, including cultivation of the soil for the growing of crops and the rearing of animals to provide food, wool, and other products.
Example
Sustainable agriculture can help protect the environment.
A2 noun /ˈæk.tər/

Actor

Meaning
a person whose profession is acting on the stage, in movies, or on television
Example
The famous actor won an award for his performance in the new movie.
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 noun /əˈreɪ/

array

Meaning
an impressive display or arrangement of things
Example
The shop displayed an array of colorful dresses.
C2 adjective /ˈæmbjələˌtɔːri/

ambulatory

Meaning
Relating to or able to walk; relating to outpatient medical care.
Example
The patient is ambulatory and does not require bed rest.
C1 noun, verb, adjective /ˈæɡ.rɪ.ɡət/ (noun/adjective), /ˈæɡ.rɪ.ɡeɪt/ (verb)

aggregate

Meaning
A whole formed by combining several elements; to combine into a total.
Example
The data was aggregated to provide a clearer picture of the market.
C2 adjective /əˌnækrəˈnɪstɪk/

anachronistic

Meaning
belonging to a period other than that being portrayed; old-fashioned or outdated
Example
His views on gender roles are considered anachronistic.
B1 noun /əˈsaɪnmənt/

assignment

Meaning
a task or piece of work given to someone as part of their duties
Example
The students completed their homework assignment on time.
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.
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.
C2 adjective /ˌæf.əˈrɪs.tɪk/

aphoristic

Meaning
expressed in the style of a short, witty saying
Example
Her writing style is concise and aphoristic.
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.
C1 adjective /ɔːˈstɪə/

austere

Meaning
Severe or strict in manner, attitude, or appearance; plain and simple.
Example
The monk lived an austere life in the mountains.
C2 noun /ˈænɪməlˌkjuːl/

animalcule

Meaning
A microscopic animal, especially a protozoan or other minute organism.
Example
The scientist observed an animalcule moving under the microscope.
B2 adjective /ˌɑːrkɪˈtɛktʃərəl/

architectural

Meaning
relating to the design and style of buildings and structures
Example
The city is known for its beautiful architectural designs.
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 noun /æbˈsɪʒən/

abscission

Meaning
The natural detachment of parts of a plant, typically leaves or fruit.
Example
The autumn season is marked by the abscission of leaves from trees.
C2 noun /ˌædʒʊˈreɪʃən/

adjuration

Meaning
a solemn urging or appeal
Example
The priest made an adjuration for peace and unity.
C1 adjective /ˈækʃənəbl̩/

actionable

Meaning
Able to be acted on or giving sufficient reason for legal action.
Example
The lawyer confirmed that the evidence was actionable in court.
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 /ænˈtɪpədiːz/

antipodes

Meaning
places on opposite sides of the Earth; also refers to things that are direct opposites
Example
Australia and Britain are often considered antipodes of each other.
C1 adjective /əˈkɪn/

akin

Meaning
Of similar character or related by blood.
Example
His reaction was akin to shock.
C1 noun /əˈvɜːrʒən/

aversion

Meaning
a strong feeling of dislike or unwillingness towards something
Example
She has a strong aversion to smoking.
B2 noun /ˈæplɪkənt/

applicant

Meaning
a person who applies for something, such as a job or a position
Example
The applicant was interviewed for the position.
C1 noun /ˌæmplɪfɪˈkeɪʃən/

amplification

Meaning
the act or process of making something stronger, louder, or more intense; an expansion or elaboration of details
Example
The microphone provides amplification of the speaker’s voice.
C2 noun /ˈæktʃuˌɛri/

actuary

Meaning
A professional who analyzes financial risk using mathematics, statistics, and financial theory, especially in insurance and pensions.
Example
The actuary calculated the risk before finalizing the insurance policy.
B2 verb /ˈɔːdɪt/

audit

Meaning
to examine and verify financial records or accounts officially
Example
The accountant will audit the company's books next month.
C1 noun, verb /ˈɔːtɒpsi/

autopsy

Meaning
a post-mortem examination to discover the cause of death or the extent of disease
Example
The autopsy revealed that the victim had died from poisoning.
A2 verb /əkˈsɛpt/

accept

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

archaism

Meaning
a word, expression, or style of language that is no longer in everyday use
Example
The poem is full of archaisms that give it an old-fashioned flavor.
B2 adjective /ˌærəˈmætɪk/

aromatic

Meaning
Having a pleasant and distinctive smell.
Example
The chef used aromatic herbs to flavor the dish.
B2 noun /ˈæl.oʊ ˈvɪər.ə/

Aloe Vera

Meaning
a succulent plant with thick fleshy leaves and medicinal properties; produces tubular flowers
Example
The aloe vera plant blooms with orange or yellow tubular flowers.
C1 adjective /ədˈmɪsəbl/

admissible

Meaning
acceptable or valid, especially as evidence in a court of law
Example
The judge ruled that the document was admissible as evidence.
C1 adjective, noun /əbˈzɔːrbənt/

absorbent

Meaning
able to soak up liquid, moisture, or energy easily; a material or substance that absorbs
Example
This towel is highly absorbent and dries quickly.
C2 noun /əˈsɜːrbəti/

acerbity

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

antic

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

ancestry

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

assonance

Meaning
the repetition of vowel sounds in nearby words in poetry or prose
Example
The poet used assonance to create a musical effect in his verse.
C2 adjective /əˈkjuː.zəˌtɔːr.i/

accusatory

Meaning
Suggesting blame or indicating someone has done wrong.
Example
He gave her an accusatory glance.
C2 noun əˌdʌl.təˈreɪ.ʃən

adulteration

Meaning
The action of making something poorer in quality by the addition of another substance.
Example
Adulteration of food is a serious health risk.
C2 noun /ˌæk.wiˈes.əns/

acquiescence

Meaning
The reluctant acceptance of something without protest.
Example
His silent acquiescence to unfair rules was surprising.
C2 verb /ˈæktʃueɪt/

actuate

Meaning
to put into action or motion; to motivate or activate
Example
The engineer actuated the machine with a simple switch.
B2 noun /ˌɔːltəˈreɪʃən/

alteration

Meaning
a change or modification made to something
Example
The tailor made an alteration to the suit.
C1 noun ˌæf.ɔːr.ɪˈsteɪ.ʃən

afforestation

Meaning
The action of planting trees on an area of land in order to form a forest.
Example
Afforestation helps restore biodiversity.
B2 noun /ˈæstərɔɪd/

asteroid

Meaning
A small rocky body orbiting the sun, mostly found in the asteroid belt between Mars and Jupiter.
Example
The asteroid belt lies between the orbits of Mars and Jupiter.
C2 noun /ˈɛərəˌstæt/

aerostat

Meaning
A lighter-than-air craft, such as a balloon, that is lifted by gas.
Example
The military used an aerostat for surveillance over the border.
B2 noun /əˈbɔːrʃən/

abortion

Meaning
The deliberate termination of a human pregnancy, usually performed during the first 28 weeks.
Example
The debate about abortion continues to divide public opinion.
C2 verb /ˈærəˌɡeɪt/

arrogate

Meaning
To claim or take something without justification.
Example
The dictator arrogated all powers to himself.
A1 noun/adjective /əˈmerɪkən/

american

Meaning
relating to the United States or its people
Example
She is an American citizen.
B1 noun /æks/

Axe

Meaning
a tool with a heavy blade for cutting wood
Example
The lumberjack swung his axe to chop the tree.
B2 adverb /ˌælfəˈbɛtɪkli/

alphabetically

Meaning
in the order of the letters of the alphabet
Example
The names are listed alphabetically in the register.
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.
C1 noun /əˈseɪlənt/

assailant

Meaning
a person who attacks another
Example
The police arrested the assailant at the scene.
C1 verb /əˈpɔːl/

appall

Meaning
To shock or horrify someone with something unpleasant or bad.
Example
The cruelty of the crime appalled the entire community.
C1 adjective /əˈmiːnəbl/

amenable

Meaning
willing to cooperate or be influenced; open to suggestions
Example
She was amenable to the idea of working longer hours.
B2 adjective /ˌædvənˈteɪdʒəs/

Advantageous

Meaning
beneficial; favorable; profitable
Example
This position offers advantageous opportunities for career growth.
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 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 verb /əˈpriːʃieɪt/

appreciate

Meaning
to recognize the value or significance of; to be grateful for
Example
I really appreciate your help with this project.
C2 adjective /əˈstrɪndʒənt/

astringent

Meaning
sharp or severe in manner or style; also describes a substance that contracts skin or body tissues
Example
Her astringent tone silenced the noisy class.
B1 verb /əˈsɪst/

assist

Meaning
to help or support someone in doing something
Example
The nurse will assist the doctor during the surgery.
C1 adjective /ˈærəbəl/

arable

Meaning
suitable for growing crops or farming
Example
The farmer purchased arable land to expand his crops.
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.
A1 verb /æd/

add

Meaning
to join something to something else; to include
Example
Please add sugar to my coffee.
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.
C2 adjective /ˈæpəzɪt/

apposite

Meaning
highly appropriate or relevant to what is being discussed
Example
Her remark was particularly apposite to the situation.
C2 noun /ˈædʒ.ə.tənt/

Adjutant

Meaning
a large water bird with long legs and neck, also known as adjutant stork
Example
The adjutant stork stood motionless in the shallow water.
C2 noun /ˈeɪ.viˌɛr.i/

aviary

Meaning
a large enclosure for keeping birds
Example
The zoo built a new aviary for exotic parrots.
B1 adjective /eɪdʒd/

aged

Meaning
having lived for a specified number of years; old
Example
The aged man sat in the park, watching the children play.
A2 verb /əˈlaʊ/

allow

Meaning
to give permission for something to happen or someone to do something
Example
The teacher did not allow phones in class.
A1 verb /ˈænsər/

answer

Meaning
to respond to a question; to reply; to solve
Example
She will answer the phone when it rings.
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.
B1 noun /ədˈmɪʃ.ən/

Admission

Meaning
the process of entering or being allowed to enter a school or organization; accepting that something is true
Example
She gained admission to Harvard University.
C2 noun /ˈɔːlmənæk/

almanac

Meaning
An annual publication containing calendars, weather forecasts, astronomical data, and other useful information.
Example
He consulted the almanac to check the phases of the moon.
A2 noun /ˈæk.sɪ.dənt/

accident

Meaning
An unfortunate incident that happens unexpectedly and unintentionally.
Example
Safety measures aim to prevent accidents.
B1 noun /ˈɑː.kɪ.tekt/

architect

Meaning
a person who designs buildings and oversees their construction
Example
The architect designed a modern office building.
B2 adjective /ænˈtɑːrktɪk/

antarctic

Meaning
relating to the region around the South Pole
Example
The Antarctic region is known for its extreme cold and icy landscapes.
C2 noun /ˈænɪməs/

animus

Meaning
A strong feeling of hostility; motivation or purpose behind an action.
Example
His speech was driven by animus against the policy.