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B2 noun /ˈæsɪd/

acid

Meaning
a chemical substance that reacts with bases and has a sour taste
Example
Lemons contain citric acid.
C1 verb /ˈæmpjʊteɪt/

amputate

Meaning
to cut off a limb from the body by surgery
Example
The doctors had to amputate his leg after the accident.
C2 noun /əˈspɜːr.ʒən/

aspersion

Meaning
An attack on the reputation or integrity of someone.
Example
He cast an aspersion on her character.
B2 noun /ˌæl.əˈɡeɪ.ʃən/

Allegation

Meaning
a claim that someone has done something wrong or illegal
Example
The allegation against him was proven false.
C1 noun /ˌæŋɡloʊ ˈsæksən/

anglo-saxon

Meaning
A member of the Germanic peoples who settled in England in the early Middle Ages; also relating to their language or culture.
Example
The Anglo-Saxon period greatly influenced English culture and language.
C1 verb əˈkruː

accrue

Meaning
To accumulate or receive (payments or benefits) over time.
Example
Interest accrues on the savings account every month.
C1 adverb /iːsˈθetɪkli/

aesthetically

Meaning
in a way that is concerned with beauty or visual appeal
Example
The building is aesthetically pleasing despite its simple design.
C2 verb /ˌænɪmədˈvɜːt/

animadvert

Meaning
To comment critically or unfavorably.
Example
The teacher animadverted on the student's careless mistakes.
B1 adverb /ˌɔːl.təˈɡeð.ər/

Altogether

Meaning
completely; in total; considering everything
Example
The project cost altogether five thousand dollars.
C1 adjective /əˈdɛpt/

adept

Meaning
Very skilled or proficient at something.
Example
She is adept at solving complex mathematical problems.
B2 adjective /əbˈsɜːrd/

absurd

Meaning
wildly unreasonable, illogical, or inappropriate
Example
It is absurd to think that the earth is flat.
B2 adjective /əˈten.tɪv/

Attentive

Meaning
careful to pay attention; alert and observant
Example
The attentive student listened carefully to every word the teacher said.
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.
C2 verb /əˈsɪdɪfaɪ/

acidify

Meaning
to make something acidic or more acidic
Example
Farmers worry that pollution will acidify the soil.
A2 adjective /əˈwɛər/

aware

Meaning
having knowledge or perception of a situation or fact
Example
She is aware of the risks involved.
C1 adjective /æmˈbɪvələnt/

ambivalent

Meaning
Having mixed or contradictory feelings about something or someone.
Example
She was ambivalent about accepting the new job offer.
B2 adjective /esˈθet.ɪk/

Aesthetic

Meaning
Concerned with beauty or the appreciation of beauty.
Example
Good aesthetic design enhances product appeal.
B2 noun /ˌærɪˈstɑːkrəsi/

aristocracy

Meaning
a class of people holding exceptional rank and privileges, especially hereditary nobility
Example
The aristocracy often had influence over political decisions.
C2 adjective /ˈæpəzɪt/

apposite

Meaning
highly appropriate or relevant to what is being discussed
Example
Her remark was particularly apposite to the situation.
C1 noun ˈælərdʒən

allergen

Meaning
A substance that causes an allergic reaction.
Example
Pollen is a common allergen that affects many people.
B1 adjective /əˈfɔːdəbl/

affordable

Meaning
inexpensive and within one's financial means
Example
This restaurant offers affordable meals for families.
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.
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.
C2 noun ˌæɡ.roʊˈiː.koʊˌsɪs.təm

agroecosystem

Meaning
An ecological system centered on agricultural activities and processes.
Example
A healthy agroecosystem improves soil fertility.
C1 adjective ɔːɡˈmen.tɪd

augmented

Meaning
having been made greater in size or value.
Example
The new software provided augmented reality features.
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.
C1 noun /əˈkɔːrdiən/

accordion

Meaning
a musical instrument played by squeezing and expanding with keys and buttons
Example
The musician played a cheerful tune on the accordion.
C2 adjective /ˌæpəˈplɛktɪk/

apoplectic

Meaning
Extremely angry; furious.
Example
He was apoplectic when he heard about the unfair decision.
C2 verb /əˈvaʊ/

avow

Meaning
to openly declare or admit something, often publicly and firmly
Example
He avowed his loyalty to the cause without hesitation.
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.
B2 noun əˌpriː.ʃiˈeɪ.ʃən

appreciation

Meaning
An increase in the value of an asset over time.
Example
Real estate properties often experience appreciation over time.
C2 verb /əˈɡrɛs/

aggress

Meaning
to initiate an attack or show hostile behavior
Example
The army chose not to aggress without provocation.
C1 verb /əˈkrɛdɪt/

accredit

Meaning
to officially recognize, authorize, or approve someone or something
Example
The university is accredited by the national education board.
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.
C1 noun /ˈæbsɛs/

abscess

Meaning
A swollen area within body tissue containing pus, usually caused by infection.
Example
The dentist treated the abscess in his tooth.
B1 noun /əˈkaʊntənt/

accountant

Meaning
a person whose job is to keep or check financial accounts
Example
The accountant prepared the financial reports for the company.
C2 noun /ˈævərɪs/

avarice

Meaning
extreme greed for wealth or material gain
Example
His avarice led him to exploit his workers.
C2 adverb /əˈbɛd/

abed

Meaning
in bed
Example
She stayed abed all day due to illness.
C1 noun /ˈænti ˈeəkræft ɡʌn/

Anti-aircraft-gun

Meaning
a weapon designed to attack aircraft from the ground
Example
The anti-aircraft gun was positioned to defend the military base.
C2 noun /ˌæpəˈleɪʃən/

appellation

Meaning
a name or title
Example
The city has earned the appellation 'The Big Apple'.
C1 noun /əˈbɪs/

abyss

Meaning
a deep, immeasurable space, chasm, or void; something seemingly without end
Example
The climbers looked down into the dark abyss below.
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.
C1 noun /əˌfɪl.iˈeɪ.ʃən/

affiliation

Meaning
The state or process of affiliating or being affiliated; a connection or association.
Example
His affiliation with the company lasted for a decade.
B1 noun /əˌsoʊsiˈeɪʃən/

association

Meaning
an organized group of people who have joined together for a common purpose
Example
She is a member of the local teachers' association.
C2 noun /ˈɑːrtɪfɪs/

artifice

Meaning
clever or cunning devices or tricks used to deceive others
Example
The politician's charm was nothing but artifice.
C2 noun /ˈɪəri/ or /ˈɛəri/

aery

Meaning
An eagle’s nest, or a lofty, airy dwelling.
Example
The eagle perched proudly near its aery high on the cliff.
C1 noun /æmˈniːʒə/

amnesia

Meaning
A partial or total loss of memory, usually caused by injury, illness, or psychological trauma.
Example
After the accident, she suffered from amnesia and could not remember her own name.
B1 adjective /ˈæŋk.ʃəs/

Anxious

Meaning
feeling worried or nervous; eager with concern
Example
She felt anxious about her upcoming job interview.
C2 noun /ˈækəlaɪt/

acolyte

Meaning
a follower or assistant, especially in a religious service or as a devoted supporter of a leader
Example
The senator arrived with a small group of acolytes who handled the press.
C1 adjective /əˈbreɪsɪv/

abrasive

Meaning
harsh, rough, or capable of wearing down by rubbing
Example
His abrasive tone made everyone uncomfortable.
B2 verb /əˈbɒlɪʃ/

abolish

Meaning
to formally end or stop something; to cancel or eliminate completely
Example
The government decided to abolish the old tax system.
C2 adjective /əˈsiːtɪk/

acetic

Meaning
relating to or containing acetic acid; sour or vinegary in taste or smell
Example
The acetic smell of vinegar filled the kitchen.
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 əˌkjuː.mjəˈleɪ.ʃən

accumulation

Meaning
The gradual gathering or collecting of something over time.
Example
The accumulation of dust affects appliance efficiency.
B2 noun /ˈænsestər/

Ancestor

Meaning
a person, typically one more remote than a grandparent, from whom one is descended
Example
She researched her family tree to learn about her ancestors.
B2 noun ˈæsɛt

asset

Meaning
A useful or valuable thing, person, or quality.
Example
Real estate is one of the most valuable assets.
C2 noun /ˈæk.rɪ.moʊ.ni/

acrimony

Meaning
Bitterness and anger, especially in speech or behavior.
Example
The divorce was filled with acrimony and disputes.
B1 noun /ˈɛər.kræft/

aircraft

Meaning
A vehicle, such as an airplane or helicopter, that can fly in the air.
Example
The military aircraft flew over the city.
C1 adjective /ˌeɪˈmɔːrəl/

amoral

Meaning
Lacking a moral sense; unconcerned with rightness or wrongness of something.
Example
The character in the novel was portrayed as completely amoral.
C1 verb /əˈsɪm.ɪ.leɪt/

assimilate

Meaning
To take in and understand fully; to absorb and integrate into one's knowledge or culture.
Example
Immigrants often struggle to assimilate into a new culture.
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 noun /ˈæk.sɪ.dənt/

accident

Meaning
An unfortunate incident that happens unexpectedly and unintentionally.
Example
Safety measures aim to prevent accidents.
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.
C1 verb /ˈɑːrbɪtreɪt/

arbitrate

Meaning
to settle a dispute between two parties by acting as an impartial judge
Example
The committee agreed to arbitrate the contract dispute.
B2 noun /ˈæməzɒn/

amazon

Meaning
A tall, strong, or powerful woman.
Example
She fought like an amazon in the competition.
B1 adverb /ˈæŋɡrɪli/

angrily

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

amplify

Meaning
to make sounds louder; to make something larger or more significant
Example
The microphone amplifies her voice.
C2 noun /ˈændaɪərn/

andiron

Meaning
a metal support used in a fireplace to hold logs
Example
The logs rested on the andirons in the old fireplace.
B2 adjective /ˈæm.pəl/

Ample

Meaning
large in size, extent, or capacity; plentiful; more than enough
Example
We have ample time to finish the project before the deadline.
C1 noun əˌsɪm.ɪˈleɪ.ʃən

Assimilation

Meaning
Connecting new information with existing knowledge
Example
Proper assimilation of knowledge leads to effective learning.
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.
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.
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.
B1 noun /aɪl/

aisle

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

approbation

Meaning
approval or praise
Example
The plan won the approbation of the board members.
C2 adjective /əˈbɔːrtɪv/

abortive

Meaning
Failing to produce the intended result; unsuccessful.
Example
Their abortive attempt to climb the mountain ended in retreat.
C2 adjective /əˈkɪliən/

achillean

Meaning
like or characteristic of Achilles; strong but vulnerable
Example
His achillean pride made him blind to danger.
C1 noun /ˈɑːrməri/

armory

Meaning
A place where weapons are stored; a supply of resources or skills.
Example
The soldiers kept their weapons in the armory.
B2 noun /ˈærəɡəns/

Arrogance

Meaning
having or revealing an exaggerated sense of one's own importance or abilities
Example
His arrogance made him unpopular among his colleagues.
C1 verb /əˈdɔːrn/

adorn

Meaning
to decorate or add beauty to something
Example
The hall was adorned with flowers for the wedding.
C1 noun /ˈæŋɡwɪʃ/

anguish

Meaning
Severe mental or physical pain or suffering.
Example
She was in deep anguish after hearing the tragic news.
B2 verb /ˈænəlaɪz/

analyze

Meaning
to examine something in detail to understand it better or draw conclusions
Example
Scientists analyze data to discover new patterns.
A2 adjective /əˈnɔɪd/

annoyed

Meaning
feeling slightly angry or irritated
Example
She felt annoyed by the constant noise.
B2 adjective, noun, verb /ˈæb.strækt/

abstract

Meaning
existing in thought or as an idea but not having physical or concrete existence; a summary of a text
Example
The artist is known for her abstract paintings.
B1 noun /əˈfer/

Affair

Meaning
an event or situation; a matter that someone deals with
Example
The wedding was a grand affair with hundreds of guests.
C2 verb /æbˈdʒʊər/

abjure

Meaning
to formally renounce or give up a belief, cause, or claim
Example
He abjured his allegiance to the old regime.
C2 adjective /əˈmɔːrfəs/

amorphous

Meaning
Lacking a clear shape or form; without a defined structure.
Example
The plan remained amorphous and lacked concrete details.
A2 verb /əˈnaʊns/

announce

Meaning
to make a formal public statement about something
Example
The company will announce the new product tomorrow.
B2 adjective /əˈbjuːsɪv/

abusive

Meaning
extremely offensive or insulting; involving physical or verbal harm
Example
She left her job because of her abusive boss.
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.
C1 noun /ˈæbdəmən/

abdomen

Meaning
The part of the body below the chest and above the hips that contains the stomach and other organs.
Example
He complained of pain in his abdomen.
C2 noun /ˌænθrəpəˈsɛntrɪzəm/

anthropocentrism

Meaning
The belief that human beings are the most important or central element of existence.
Example
Anthropocentrism often shapes environmental policies.
B2 adjective /əˈlɑːrmɪŋ/

alarming

Meaning
Worrying or disturbing; causing concern or fear.
Example
The unemployment rate among youth is alarming.
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.
B1 adverb /ˈɑːf.tə.wərdz/

Afterwards

Meaning
at a later time; after an event or time that has already been mentioned
Example
We had dinner and afterwards we watched a movie.
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.
C1 verb /əˈbaʊnd/

abound

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

assignee

Meaning
a person to whom a right or property is legally transferred
Example
The assignee of the contract is responsible for all future obligations.
C1 adjective /ˈeɪmləs/

Aimless

Meaning
without purpose or direction; lacking a goal
Example
He wandered around the city in an aimless manner.
C2 adjective /ˈæsənənt/

assonant

Meaning
Having or characterized by assonance; repeating similar vowel sounds.
Example
The poem is filled with assonant words that create a musical rhythm.
C1 noun /ˌeɪ.li.əˈneɪ.ʃən/

alienation

Meaning
The state of being isolated or estranged from a group or activity.
Example
The new policies created a sense of alienation among employees.
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.
A2 verb /əˈnɔɪ/

annoy

Meaning
to irritate or bother someone and make them feel a little angry or uncomfortable
Example
His constant humming started to annoy everyone in the room.
B2 noun /əˈstɒnɪʃmənt/

astonishment

Meaning
Great surprise or amazement.
Example
She looked at the magician with astonishment.
C2 verb /əˈɡræn.daɪz/

aggrandize

Meaning
To increase the power, wealth, or importance of a person or entity.
Example
The politician tried to aggrandize himself through exaggerated claims.
C2 verb /əˈbæʃ/

abash

Meaning
to make someone feel embarrassed or ashamed
Example
Her sudden question seemed to abash him.
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 adjective /əˈlɛdʒd/

alleged

Meaning
said or thought to be true, but not proven
Example
The alleged thief was caught by the police.
B1 verb /əˈʃʊr/

assure

Meaning
to make someone feel certain or confident about something
Example
He assured her that everything would be fine.
C1 adjective /ˈeɪ.mi.ə.bəl/

Amiable

Meaning
friendly and pleasant; good-natured; kind
Example
My neighbor is very amiable and always greets everyone warmly.
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.
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.
C2 noun /ˌækwəˈpɒnɪks/

aquaponics

Meaning
A system of aquaculture in which the waste produced by farmed fish or other aquatic animals supplies nutrients for plants grown hydroponically.
Example
Aquaponics efficiently utilizes water by integrating fish and plant farming.
A2 adjective ˈæktɪv

active

Meaning
Engaging or ready to engage in physically energetic pursuits; characterized by energetic work, participation, etc.
Example
Active participation in education is vital for progress.
B2 adjective /ˌærəˈmætɪk/

aromatic

Meaning
Having a pleasant and distinctive smell.
Example
The chef used aromatic herbs to flavor the dish.
B1 adjective ˌɑː.tɪˈfɪʃ.əl

artificial

Meaning
Made by humans; not occurring naturally
Example
Artificial systems are transforming industries.
B2 noun /ˈænsestri/

ancestry

Meaning
one’s family origins or lineage
Example
He is proud of his royal ancestry.
B1 adjective /ˌɔːtəˈmætɪk/

automatic

Meaning
working by itself without direct human control
Example
This car has an automatic transmission.
C2 noun /əˈfleɪtəs/

afflatus

Meaning
a sudden divine inspiration or creative impulse
Example
The poet wrote the verses under a sudden afflatus of inspiration.
B2 adjective /əˈdɪktɪd/

addicted

Meaning
Being unable to stop engaging in a particular activity or consuming a particular substance.
Example
Many people are addicted to social media.