adieu
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C2 noun /əˈdjuː/

adieu

Meaning
A farewell or goodbye, often used in a formal or poetic sense.
Example
She bid her friends adieu before leaving for France.
C2 verb /əˈpraɪz/

apprise

Meaning
to inform or notify someone
Example
The manager will apprise the staff of the new policies.
C2 noun /əˈsper.ɪ.ti/

asperity

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

adulation

Meaning
excessive admiration or flattery
Example
The singer enjoyed the adulation of her fans.
C2 verb /əˈmælɡəmeɪt/

amalgamate

Meaning
to combine or unite to form one organization or structure; to merge
Example
The two companies decided to amalgamate their operations.
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belonging to a period other than that being portrayed; old-fashioned or outdated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.
C2 noun /əkˈsɛʃən/

accession

Meaning
the attainment of a position of rank or power, especially a monarch or president; the formal acceptance of an agreement or treaty
Example
The king's accession to the throne was celebrated with great ceremony.
C2 adjective /ˈæbdʒɛkt/

abject

Meaning
extremely bad, unpleasant, and degrading
Example
They lived in abject poverty.
C2 noun /əˈmæl.ɡəm/

amalgam

Meaning
a mixture or blend of different things
Example
The new policy is an amalgam of several previous laws.
C2 noun /ˈeɪʒən siː bæs/

Asian sea bass

Meaning
a large predatory fish found in coastal waters and estuaries of the Indo-Pacific region, prized for its white meat
Example
Asian sea bass is highly valued in aquaculture for its fast growth.
C2 adjective /æmˈbroʊʒiəl/

ambrosial

Meaning
Exceptionally pleasing to taste or smell; divine.
Example
The aroma of freshly baked bread was simply ambrosial.
C2 adjective /eɪˈsɛptɪk/

aseptic

Meaning
Free from contamination caused by harmful microorganisms; sterile.
Example
Surgeons must work in an aseptic environment to prevent infection.
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.
C2 verb /əˈfaɪəns/

affiance

Meaning
to promise or pledge marriage; to formally engage
Example
They decided to affiance after years of friendship.
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 /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.
C2 noun /əˈsɛt.ɪˌsɪz.əm/

asceticism

Meaning
The practice of severe self-discipline and abstaining from indulgence, typically for religious or spiritual reasons.
Example
Asceticism has been a part of many religious traditions throughout history.
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 noun /ˈɑːrkeɪndʒəl/

archangel

Meaning
A high-ranking angel, often considered a chief messenger or leader among angels.
Example
Michael is often depicted as the most powerful archangel.
C2 noun əˈkjuː.ə.ti

acuity

Meaning
Sharpness or keenness of thought, vision, or hearing.
Example
His intellectual acuity made him a brilliant scientist.
C2 noun /ˌæd.ʌmˈbreɪ.ʃən/

adumbration

Meaning
a vague foreshadowing or symbolic representation of something
Example
The play offers an adumbration of the political unrest to come.
C2 noun /ˈæpədʒiː/

apogee

Meaning
the highest or most distant point; the climax or peak of something
Example
The empire reached its apogee during the 18th century.
C2 noun /əˈbrɪdʒmənt/

abridgment

Meaning
A shortened version of a larger work, such as a book or speech.
Example
The publisher released an abridgment of the lengthy novel for students.
C2 verb /əˈreɪn/

arraign

Meaning
to formally accuse someone in a court of law and ask them to respond to the charges
Example
The suspect was arraigned before the judge this morning.
C2 noun, verb /ˈæseɪ/

assay

Meaning
To test or analyze the quality, purity, or content of a substance; the act of such testing.
Example
The scientists assayed the mineral sample for gold content.
C2 adjective /eɪˈsɛfələs/

acephalous

Meaning
having no leader or head; headless
Example
The acephalous group soon fell into disorganization.
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 adjective, adverb /əˈfʊt/

afoot

Meaning
In progress; happening or being prepared.
Example
There are several new projects afoot in the company.
C2 noun /ˈɔːrɪkl̩/

auricle

Meaning
The external part of the ear; also an upper chamber of the heart in anatomy.
Example
The doctor examined the patient’s auricle for signs of infection.
C2 noun /ˈɔːriˌoʊl/

aureole

Meaning
A halo or radiance surrounding the head or body, often in religious art.
Example
The painting showed the saint with an aureole around his head.
C2 verb /əˈsɪdɪfaɪ/

acidify

Meaning
to make something acidic or more acidic
Example
Farmers worry that pollution will acidify the soil.
C2 verb /əˈvʌls/

avulse

Meaning
to tear away or separate forcibly, especially in medical or geological contexts
Example
The surgeon had to avulse the damaged tissue during the operation.
C2 adjective, noun /ˈænθrəpɔɪd/

anthropoid

Meaning
Resembling a human being in form; a primate such as apes and monkeys.
Example
The gorilla is considered an anthropoid ape.
C2 noun əˌklaɪ.mə.tɪˈzeɪ.ʃən

acclimatization

Meaning
The process of adapting to a new environment or condition.
Example
The hikers needed time for acclimatization to high altitudes.
C2 noun /əˌnʌn.siˈeɪ.ʃən/

annunciation

Meaning
The announcement of something; in Christianity, the announcement by the angel Gabriel to Mary that she would conceive Jesus.
Example
The church celebrated the Feast of the Annunciation with a special service.
C2 verb /əˈɡriːv/

aggrieve

Meaning
to cause distress or make someone feel resentful
Example
She felt aggrieved by the unfair decision.
C2 noun /əˈnæb.ə.lɪ.zəm/

anabolism

Meaning
The set of metabolic pathways that construct molecules from smaller units, involving tissue repair and growth.
Example
Anabolism is essential for muscle growth and tissue repair.
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 /ˈævərɪs/

avarice

Meaning
extreme greed for wealth or material gain
Example
His avarice led him to exploit his workers.
C2 noun ˌæb.əˈreɪ.ʃən

aberration

Meaning
A departure from what is normal, usual, or expected, typically one that is unwelcome.
Example
The scientist dismissed the data as an aberration.
C2 noun /əˈɡrɒnəmɪst/

agronomist

Meaning
A scientist who studies soil management and crop production.
Example
The agronomist suggested new methods to improve rice yields.
C2 noun /əˈpɜːrtənənsɪz/

appurtenances

Meaning
Additional items or accessories associated with something, often used in a legal or property context.
Example
The house was sold along with all its appurtenances, including the garage and garden.
C2 adjective /ɔːˈɡʌst/

august

Meaning
Respected and impressive; inspiring reverence or admiration.
Example
The king entered the hall with an august presence.
C2 noun /ˈæntɪk/

antic

Meaning
a playful, funny, or silly act or gesture
Example
The children laughed at the clown’s antics.
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.
C2 adjective /ˈæsɪnaɪn/

asinine

Meaning
Extremely foolish or stupid.
Example
It was an asinine idea to drive into the storm without checking the weather.
C2 adjective /ɔːˈrɪkjʊlər/

auricular

Meaning
Relating to the ear or hearing.
Example
The doctor used an auricular thermometer to check the patient's temperature.
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 /ˌævəˈrɪʃəs/

avaricious

Meaning
having or showing extreme greed for wealth or material gain
Example
The avaricious landlord increased the rent unfairly.
C2 noun /ænˈtɪstrəfi/

antistrophe

Meaning
A rhetorical device in which a word or phrase is repeated at the end of successive clauses; in Greek choral poetry, the part of the ode sung by the chorus in return movement.
Example
The poet used antistrophe to emphasize the repeated phrase.
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.
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.
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.
C2 noun /əˈspɜːr.ʒən/

aspersion

Meaning
An attack on the reputation or integrity of someone.
Example
He cast an aspersion on her character.
C2 verb /əˈkuːtə/

accoutre

Meaning
to dress or equip, especially in something impressive or elaborate
Example
The knight was accoutred in shining armor.
C2 noun /ˌæbsəˈluːʃən/

absolution

Meaning
formal release from guilt, obligation, or punishment
Example
The priest granted him absolution for his sins.
C2 adjective /ænˈdrɒdʒɪnəs/

androgynous

Meaning
Having both male and female characteristics; not clearly masculine or feminine.
Example
The fashion show featured models with an androgynous look.
C2 noun /əˈfleɪtəs/

afflatus

Meaning
a sudden divine inspiration or creative impulse
Example
The poet wrote the verses under a sudden afflatus of inspiration.
C2 noun /ˌær.əˈbɪl.ɪ.ti/

arability

Meaning
The quality of land being suitable for growing crops.
Example
The arability of land depends on soil quality and water availability.
C2 noun /ˌɔːltərˈkeɪʃən/

altercation

Meaning
a noisy argument or quarrel
Example
There was a brief altercation between the two drivers.
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 adjective /əˈskjuː/

askew

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

antecede

Meaning
to come before in time or order
Example
A short introduction usually antecedes the main text.
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.
C2 adjective /ˈæfəbəl/

affable

Meaning
friendly, easy to talk to, and pleasant in manner
Example
He is such an affable host that everyone feels comfortable at his parties.
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.
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.
C2 adjective /ˌæktʃuˈɛəriəl/

actuarial

Meaning
Relating to actuaries or their work of analyzing financial risk and uncertainty, especially in insurance and pensions.
Example
The company relied on actuarial reports to set insurance premiums.
C2 adjective /æbˈhɔːr.ənt/

Abhorrent

Meaning
extremely unpleasant and causing disgust; detestable
Example
The idea of animal cruelty is abhorrent to most people.
C2 adjective /ˈæstrəl/

astral

Meaning
Relating to the stars or to spiritual, non-physical realms.
Example
Some believe in astral projection, the ability to leave the body and travel spiritually.
C2 adjective /ˌæntɪməˈrɪdiən/

antemeridian

Meaning
Relating to the time before noon; occurring in the morning.
Example
She scheduled all her important meetings during the antemeridian hours.
C2 verb /əˈsɛvəˌreɪt/

asseverate

Meaning
to affirm or declare positively and earnestly
Example
He asseverated that he had never seen the man before.
C2 adjective ˌeə.rəʊˈstæt.ɪk

aerostatic

Meaning
Relating to or involving gases (especially air) in equilibrium and the equilibrium of balloons or aircraft under the influence of such gases.
Example
Aerostatic designs ensure stability at high altitudes.
C2 noun /ˈæbɪs/

abbess

Meaning
the woman in charge of a convent of nuns
Example
The abbess welcomed the visitors to the convent.
C2 noun /əbˈhɒrəns/

abhorrence

Meaning
a feeling of strong disgust or hatred
Example
He expressed his abhorrence of racial discrimination.
C2 adjective /əˈluːsɪv/

allusive

Meaning
Making indirect references or hints; suggestive without being explicit.
Example
The novel is full of allusive passages that point to classical literature.
C2 noun /əˈkriːʃən/

accretion

Meaning
The process of growth or increase, typically by the gradual accumulation of additional layers or matter.
Example
The accretion of wealth allowed him to invest in various projects.
C2 adverb /əˈmʌk/

amuck

Meaning
in a frenzied, uncontrolled, or chaotic manner
Example
The bull ran amuck through the village.
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.
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.
C2 noun /əˈplɒm/

aplomb

Meaning
Complete and confident self-assurance or poise.
Example
She handled the difficult questions with aplomb.
C2 adjective /ˌæk.si.əˈmæt.ɪk/

axiomatic

Meaning
Self-evident, obviously true without need for proof
Example
It is axiomatic that hard work leads to success.
C2 verb /ˌæpərˈteɪn/

appertain

Meaning
to relate to or be connected with something
Example
The rules only appertain to members of the club.
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 /æbˈstruːs/

abstruse

Meaning
Difficult to understand; obscure.
Example
The abstruse nature of the philosophical debate left many confused.
C2 adjective /ˈɑːrtləs/

artless

Meaning
Without deception or pretentiousness; natural and simple.
Example
Her artless smile made everyone feel at ease.
C2 adverb /əˈbɛd/

abed

Meaning
in bed
Example
She stayed abed all day due to illness.
C2 verb /ˌækwiˈɛs/

acquiesce

Meaning
to accept something reluctantly but without protest
Example
She decided to acquiesce to her parents’ wishes.
C2 adjective /ˌæk.rɪˈmoʊ.ni.əs/

acrimonious

Meaning
Bitter and angry, often involving harsh words.
Example
The debate turned acrimonious after the controversial remark.
C2 verb /əˈkuːtər/

accouter

Meaning
to equip or outfit, typically with military or ceremonial attire
Example
The soldiers were accoutered in full battle gear.
C2 adjective /ˈæʒər/

azure

Meaning
A bright blue color like that of a clear sky.
Example
The clear sky was painted in a deep shade of azure.
C2 noun /ˈɔːldərmənʃɪp/

aldermanship

Meaning
The office, position, or dignity of an alderman.
Example
He was honored with aldermanship after years of service.
C2 noun /ˈiːdʒɪs/

aegis

Meaning
The protection, backing, or support of a particular person or organization.
Example
The project was carried out under the aegis of the United Nations.
C2 adjective /əˈkɜːrsɪd/

accursed

Meaning
Doomed, detestable, or under a curse.
Example
The villagers avoided the accursed house on the hill.
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.
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 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.
C2 noun əˈdrɔɪt.nəs

adroitness

Meaning
Cleverness or skill, especially in using the hands or mind; skillful dexterity.
Example
His adroitness in negotiations secured the deal.
C2 verb /əbˈhɔːr/

abhor

Meaning
to regard with disgust and hatred
Example
She abhors cruelty to animals.
C2 noun /əˌbɑː.məˈneɪ.ʃən/

abomination

Meaning
a thing that causes disgust or hatred
Example
Slavery was considered an abomination.
C2 adjective əˈdrɔɪt

adroit

Meaning
clever or skillful in using the hands or mind.
Example
She is adroit at solving complex problems.
C2 adjective /əˈɡɒɡ/

agog

Meaning
Highly excited by eagerness, curiosity, or anticipation.
Example
The children were agog with excitement as they waited for the magician to appear.
C2 noun /əˈluːviən/

alluvion

Meaning
The gradual increase of land by the deposit of soil from water; also, a flood or overflow of water.
Example
The river’s alluvion added new fertile land to the village fields.
C2 verb /əˈbɑː.mə.neɪt/

abominate

Meaning
to feel hatred or loathing for something
Example
She abominates cruelty to animals.
C2 noun /ˌæs.əˈfet.ɪ.də/

Asafoetida

Meaning
a pungent spice derived from the resin of a plant, commonly used in Indian cooking
Example
A pinch of asafoetida adds a distinctive flavor to the lentil curry.
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.
C2 noun/adjective /ˈæl.əˌbæs.tər/

alabaster

Meaning
A fine-grained, usually white variety of gypsum, often used for carving; also describes something smooth and pale like alabaster.
Example
The statue was carved from pure alabaster.
C2 noun /əˈnɔɪnt.mənt/

anointment

Meaning
The act of anointing, usually with oil, as part of a ritual or ceremony.
Example
The anointment of the new leader was a sacred ritual.
C2 noun /ˈæntɪkwɛri/

antiquary

Meaning
A person who studies, collects, or deals in antiques or ancient objects.
Example
The antiquary spent years collecting rare manuscripts from the medieval period.
C2 noun /ˌæŋɡləˈfoʊbiə/

anglophobia

Meaning
Dislike or fear of England, English people, or English culture.
Example
The politician was accused of promoting Anglophobia in his speeches.
C2 verb /ˌæd ˈlɪb/

ad-lib

Meaning
to speak or perform without preparation; to improvise
Example
The comedian ad-libbed a joke when the microphone failed.
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 verb /ˈæktʃueɪt/

actuate

Meaning
to put into action or motion; to motivate or activate
Example
The engineer actuated the machine with a simple switch.
C2 noun /əˈɡrɒnəmi/

agronomy

Meaning
The science and practice of soil management and crop production, focusing on the principles of plant and soil science to optimize agricultural productivity.
Example
Agronomy focuses on soil management and crop production.
C2 noun /əˈbaɪdəns/

abidance

Meaning
the act of following, accepting, or complying with something
Example
Her abidance by the rules impressed the committee.
C2 noun /əˈnæθəmə/

anathema

Meaning
something or someone intensely disliked or strongly condemned
Example
Violence is anathema to her peaceful nature.
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.
C2 noun /əˈdʌltərənt/

adulterant

Meaning
a substance added to something else, often food or drink, to reduce its quality or strength
Example
The laboratory found an adulterant in the milk samples.
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.
C2 adjective /ˈækwɪˌlaɪn/

aquiline

Meaning
curved like an eagle's beak; hooked
Example
He had an aquiline nose that gave him a distinguished appearance.