arduous
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C1 adjective ˈɑː.dʒu.əs

arduous

Meaning
Involving or requiring strenuous effort; difficult and tiring.
Example
The trek through the mountains was an arduous journey.
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.
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.
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.
C1 adjective ˈeɪlɪəneɪtɪd

alienated

Meaning
Feeling isolated or estranged; disconnected from others or society.
Example
Alienated students are more prone to delinquency.
C1 noun /æɡˈnɒs.tɪk/

agnostic

Meaning
a person who believes that nothing is known or can be known about the existence of God; uncertain in belief
Example
He described himself as an agnostic rather than an atheist.
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.
C1 verb /ˈæn.ə.teɪt/

annotate

Meaning
to add notes or comments to a text, diagram, or document for explanation or clarification
Example
The teacher asked the students to annotate the poem with their interpretations.
A2 preposition /əˈɡɛnst/ or /əˈɡeɪnst/

against

Meaning
In opposition to; contrary to; touching or resting on.
Example
They voted against the proposal.
C1 noun /əˈbændənmənt/

abandonment

Meaning
the act of leaving someone or something behind completely; the state of being deserted
Example
The child suffered deep emotional pain because of abandonment.
C2 noun /ˈæn.dʒi.əʊ.plæs.ti/

angioplasty

Meaning
A medical procedure to open blocked or narrowed blood vessels that supply blood to the heart.
Example
Angioplasty is now safer with robotic assistance.
B2 adjective ˌæɡ.rɪˈkʌl.tʃər.əl

agricultural

Meaning
Connected with farming.
Example
Agricultural advancements enhance food security.
C2 noun/adjective /ælˈbaɪ.noʊ/

albino

Meaning
A person, animal, or plant lacking normal pigmentation, resulting in pale skin, hair, and eyes.
Example
The albino rabbit had white fur and pink eyes.
C2 noun /əˈfeɪ.ʒə/

aphasia

Meaning
a medical condition that causes loss of ability to speak or understand language
Example
After the stroke, she was diagnosed with aphasia.
C1 noun, adverb /ˈeɪliəs/

alias

Meaning
A false or assumed identity; also used to mean 'otherwise called'.
Example
The criminal was known by the alias 'Shadow'.
B1 adverb /əˈsaɪd/

Aside

Meaning
to one side; apart; away from the main part
Example
Please set your book aside and listen to me.
A1 conjunction /ænd/

and

Meaning
Used to connect words or sentences that are to be taken jointly.
Example
She bought apples and oranges.
B2 adjective /ɔːˈθen.tɪk/

Authentic

Meaning
genuine; real; not fake or copied
Example
The museum displays only authentic artifacts from ancient civilizations.
C2 noun ˌæɡ.roʊ.iˈkɒl.ə.dʒi

agroecology

Meaning
A scientific discipline that studies agricultural systems by applying ecological concepts and principles.
Example
Agroecology promotes eco-friendly farming.
B2 adjective /əˈbʌndənt/

abundant

Meaning
existing or available in large quantities; plentiful
Example
The garden was abundant with colorful flowers.
C1 verb /əˈtoʊn/

atone

Meaning
to make amends for a wrong or injury; to make reparation
Example
He tried to atone for his mistakes by helping others.
C2 verb /əˈdʒʌdʒ/

adjudge

Meaning
to consider or declare officially in a legal or formal manner
Example
He was adjudged guilty by the court.
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.
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 /ˈɑːftərmɑːθ/

aftermath

Meaning
the consequences or aftereffects of an event or situation, especially a disastrous one
Example
The aftermath of the earthquake was devastating.
C1 noun ˌɔːɡ.menˈteɪ.ʃən

augmentation

Meaning
Increasing quantity, power or performance.
Example
The company invested in the augmentation of its workforce.
C2 noun /əˈspær.ə.ɡəs biːn/

Asparagus bean

Meaning
a long, thin green vegetable pod that grows on vines; also known as yard-long bean
Example
The asparagus bean grows up to three feet long and is commonly used in Asian cooking.
B2 verb /əˈkɒmədeɪt/

accommodate

Meaning
To provide lodging, space, or meet the needs of someone.
Example
The hotel can accommodate up to 200 guests.
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.
B2 noun /əˈkʌmplɪʃmənt/

accomplishment

Meaning
something that has been achieved successfully
Example
Graduating from university was a major accomplishment for him.
C2 noun /ˌæk.wiˈes.əns/

acquiescence

Meaning
The reluctant acceptance of something without protest.
Example
His silent acquiescence to unfair rules was surprising.
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.
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.
B2 noun /ˌɑːr.kiˈɑː.lə.dʒi/

archeology

Meaning
the study of human history and prehistory through excavation and analysis of artifacts and structures
Example
She decided to study archeology to learn about ancient civilizations.
A1 noun /ɑːrt/

art

Meaning
the expression or application of human creative skill and imagination
Example
She studied art at the university.
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.
B1 noun /ˈeɪ.dʒən.si/

Agency

Meaning
a business or organization that provides a particular service
Example
She works for a travel agency downtown.
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.
C1 adjective /əˈlʊr.ɪŋ/

Alluring

Meaning
attractive and tempting; fascinating
Example
The alluring fragrance of roses filled the garden.
C2 adjective /əˈɡeɪp/ or /əˈɡɑːp/

agape

Meaning
With the mouth wide open in surprise or wonder.
Example
She stood agape at the breathtaking view.
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 noun /əˈkjuːzd/

accused

Meaning
a person who has been charged with a crime
Example
The accused pleaded not guilty in court.
C2 verb /əˈvaʊtʃ/

avouch

Meaning
to affirm or assert something as true
Example
He avouched his innocence before the judge.
C1 noun /ˈænərkɪst/

anarchist

Meaning
a person who believes in or promotes the absence of government or authority
Example
The anarchist group protested against state control.
C1 noun /ədˈmɪtəns/

admittance

Meaning
the process or fact of entering or being allowed to enter a place
Example
No admittance without a valid ticket.
C2 noun /ˈæpəplɛksi/

apoplexy

Meaning
A sudden loss of consciousness or control due to stroke or extreme anger.
Example
The old man nearly had apoplexy when he heard the shocking news.
C1 adjective /əˈtjuːnd/

attuned

Meaning
Being receptive or sensitive to something; well adjusted or in harmony.
Example
She is attuned to the needs of her students.
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.
A2 adverb /ˈɛniweɪ/

anyway

Meaning
used to emphasize a statement or to return to a previous subject; regardless of what happened
Example
I was tired, but I went to the meeting anyway.
A2 adjective /əˈsliːp/

asleep

Meaning
in a state of sleep
Example
The baby is fast asleep.
B2 noun /eɪk/

Ache

Meaning
a continuous or prolonged dull pain in a part of one's body
Example
He had a terrible headache after working late.
B1 verb /əˈʃʊr/

assure

Meaning
to make someone feel certain or confident about something
Example
He assured her that everything would be fine.
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.
B2 adjective /əˈlaɪd/

Allied

Meaning
joined by agreement or treaty; associated; connected
Example
The allied forces worked together during the war.
B2 verb /əˈvɜːrt/

avert

Meaning
to prevent something bad from happening or to turn away one's eyes or thoughts
Example
Quick action helped avert a disaster.
B2 noun ˈænsɛstərz

Ancestors

Meaning
A person from whom one is descended; a forefather.
Example
The family tree shows the names of all ancestors.
A2 noun /ˈɔːdiəns/

audience

Meaning
A group of people who gather to watch, listen to, or experience a performance, event, or broadcast.
Example
The audience clapped loudly after the performance.
C1 verb /əˈnʌl/

annul

Meaning
to declare something legally invalid or cancel it
Example
The court decided to annul the marriage due to fraud.
A2 noun ˈɑːrɡjumənt

argument

Meaning
A reason or set of reasons given with the aim of persuading others that an action or idea is right or wrong.
Example
His argument was based on majority.
C2 verb /ˈæbrəɡeɪt/

abrogate

Meaning
To formally repeal, cancel, or abolish a law, agreement, or custom.
Example
The government decided to abrogate the outdated treaty.
A2 verb /əˈtrækt/

attract

Meaning
to cause someone to have interest or draw something towards
Example
The flowers attract bees with their bright colors.
A1 adverb /ˈɔːl.weɪz/

Always

Meaning
at all times; on all occasions; forever
Example
She always arrives early to work.
C2 noun /ˈæntɪfɒn/

antiphon

Meaning
a short chant or verse sung responsively in Christian worship, typically sung before or after a psalm or canticle
Example
The choir sang the antiphon before beginning the main hymn.
C2 noun /ˌædʒʊˈreɪʃən/

adjuration

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

apolitical

Meaning
not interested in or not connected with politics
Example
She prefers to stay apolitical and focus on her work.
C2 noun /ˈætəvɪzəm/

atavism

Meaning
The recurrence of traits or characteristics from a remote ancestor.
Example
The scientist noted atavism in the child’s physical features.
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 /ˌeɪˈsɛkʃuəl/

asexual

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

arrhythmic

Meaning
Lacking a regular rhythm or beat.
Example
The patient had an arrhythmic heartbeat.
B2 adjective ænˈtɪsɪpeɪtɪd

anticipated

Meaning
Expected or predicted to happen; foreseen in advance.
Example
The anticipated growth exceeded the city's capacity.
C2 adjective /ˈæpəzɪt/

apposite

Meaning
highly appropriate or relevant to what is being discussed
Example
Her remark was particularly apposite to the situation.
B1 adjective /əˈlɜːrt/

alert

Meaning
quick to notice and respond to potential danger or issues; aware and attentive
Example
The alert dog barked at the stranger approaching the house.
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.
C1 noun /əˈpærəl/

apparel

Meaning
Clothing, especially formal or special clothes.
Example
The store specializes in wedding apparel.
B2 noun əˌkjuː.mjəˈleɪ.ʃən

accumulation

Meaning
The gradual gathering or collecting of something over time.
Example
The accumulation of dust affects appliance efficiency.
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.
C1 adverb /əˈbrɛst/

abreast

Meaning
side by side and facing the same direction; informed about something
Example
The soldiers marched two abreast down the street.
C2 noun əˈlæk.rə.t̬i

alacrity

Meaning
Brisk and cheerful readiness.
Example
He accepted the challenge with alacrity.
B2 adverb /ˌæksɪˈdɛntəli/

accidentally

Meaning
happening by chance or unexpectedly
Example
He accidentally dropped the glass.
C2 verb /əˈlɪtəreɪt/

alliterate

Meaning
to repeat the same consonant sound at the beginning of words in a phrase or sentence
Example
The poet often alliterates words to create rhythm.
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 /ˈædvəkəsi/

advocacy

Meaning
public support for or recommendation of a particular cause or policy
Example
Her advocacy for children's rights earned her international recognition.
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.
C2 adjective /ˈæbdʒɛkt/

abject

Meaning
extremely bad, unpleasant, and degrading
Example
They lived in abject poverty.
C1 noun /ˌædməˈnɪʃən/

admonition

Meaning
a firm warning or reprimand; gentle or earnest advice
Example
He received an admonition for his careless work.
B2 verb /ænˈtɪsɪˌpeɪt/

anticipate

Meaning
to expect or look forward to something; to realize or foresee in advance
Example
We anticipate a large crowd at the event.
C1 adverb /əˈlɒft/

aloft

Meaning
Up in or into the air; overhead.
Example
The kite was flying aloft in the clear sky.
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.
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.
C1 verb /əˈliː.vi.eɪt/

alleviate

Meaning
To make suffering, deficiency, or a problem less severe; to relieve or ease.
Example
Meditation can alleviate stress and improve focus.
C1 noun /ˈænəɡræm/

anagram

Meaning
A word or phrase formed by rearranging the letters of another word or phrase.
Example
The word 'listen' is an anagram of 'silent'.
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.
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.
B1 noun /ˈælkəhɒl/

alcohol

Meaning
A colorless volatile liquid that is the intoxicating constituent of wine, beer, spirits, and other drinks.
Example
Too much alcohol can damage your liver.
C2 verb /ˌæpərˈteɪn/

appertain

Meaning
to relate to or be connected with something
Example
The rules only appertain to members of the club.
C1 noun ˈæ.sɛt ˌæl.əˈkeɪ.ʃən

asset allocation

Meaning
An investment strategy that aims to balance risk and reward by apportioning a portfolio's assets according to an individual's goals, risk tolerance, and investment horizon.
Example
Proper asset allocation is key to financial growth.
B2 noun /ˈæftərˌlaɪf/

afterlife

Meaning
Life or existence that some believe continues after physical death.
Example
Many cultures have different beliefs about the afterlife.
C2 noun /əˌbɑː.məˈneɪ.ʃən/

abomination

Meaning
a thing that causes disgust or hatred
Example
Slavery was considered an abomination.
B1 noun æmˈbɪʃ.ən

ambition

Meaning
A strong desire to do or achieve something, typically requiring determination and hard work.
Example
Their ambition is to build a quantum computer.
B1 verb /ədˈvaɪz/

advise

Meaning
to recommend what should be done; to give advice
Example
The doctor advised him to rest for a week.
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.
B2 noun /əˈsʌmpʃən/

Assumption

Meaning
a thing that is accepted as true without proof; a supposition
Example
His assumption about the weather proved to be wrong.
C1 noun /ˌæntiˈklaɪmæks/

anticlimax

Meaning
A disappointing end after a big build-up of excitement or expectation.
Example
The movie's ending was an anticlimax after such a thrilling story.
C1 adjective /əˈpriː.ʃə.bəl/

Appreciable

Meaning
noticeable; significant; considerable in amount
Example
There was an appreciable improvement in his test scores.
B2 noun /əˈbjuːs/

Abuse

Meaning
cruel and violent treatment; improper use of something
Example
The abuse of power led to his resignation.
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.
B2 noun ˌæn.tiˈɒk.sɪ.dənt

antioxidant

Meaning
A substance that may prevent or delay some types of cell damage by neutralizing free radicals.
Example
Green tea contains powerful antioxidants that slow aging.
C1 noun /ˌæf.ɚˈmeɪ.ʃən/

affirmation

Meaning
The action or process of affirming something or being affirmed; emotional support or encouragement.
Example
Daily affirmation of self-worth boosts confidence.
B1 adjective /ədˈvænst/

advanced

Meaning
highly developed or complex
Example
He is studying an advanced level of mathematics.
A2 noun /ænt/

Ant

Meaning
a small insect that lives in organized colonies and is known for hard work
Example
The ant carried a crumb that was twice its size.
C2 noun /əˈluː.vi.əm/

alluvium

Meaning
Fertile soil deposited by flowing water, especially in riverbanks.
Example
The alluvium in riverbanks is highly fertile for agriculture.
C2 adjective /ˌæd.vɛnˈtɪʃ.əs/

adventitious

Meaning
Happening by chance or accident, not planned.
Example
His success was partly due to adventitious circumstances.
B2 verb /əkˈsɛləreɪt/

accelerate

Meaning
to increase speed or make something happen sooner
Example
The driver accelerated to overtake the truck.
C1 adjective /ɔːˈdeɪ.ʃəs/

Audacious

Meaning
showing willingness to take bold risks; daring
Example
His audacious plan to climb the mountain without proper equipment shocked everyone.
C2 noun /ˈiːsθiːt/ or /ˈɛsθiːt/

aesthete

Meaning
A person who has a special appreciation of art and beauty.
Example
The aesthete admired the subtle details of the painting.
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.
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 noun /ˈæŋɡl/

angle

Meaning
The space between two intersecting lines or surfaces at the point where they meet.
Example
The teacher explained how to measure an angle in geometry.
C1 verb /əˈbaʊnd/

abound

Meaning
To exist in large numbers or amounts.
Example
Opportunities abound in the field of technology.
C1 verb /ˌæprɪˈhɛnd/

apprehend

Meaning
to arrest or seize someone; to understand or perceive something
Example
The police managed to apprehend the thief after a long chase.
C1 adjective /əˈtrəʊ.ʃəs/

Atrocious

Meaning
horrifyingly wicked; extremely bad or unpleasant
Example
The conditions in the prison were atrocious.