dereliction
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C2 noun /ˌdɛrɪˈlɪkʃən/

dereliction

Meaning
the state of being abandoned; neglect of duty
Example
The officer was charged with dereliction of duty.
C2 noun /rɪˈvaɪlər/

reviler

Meaning
a person who criticizes or insults others abusively
Example
He was known as a reviler of all who opposed him.
C2 noun /ˈsaɪ.ə.lɪz.əm/

sciolism

Meaning
pretentious show of superficial knowledge
Example
His speech was full of sciolism, impressing no one.
C2 noun /flɔːˈrɛsəns/

florescence

Meaning
The process, state, or period of flowering.
Example
The garden reached its peak florescence in spring.
C2 verb /ˈdʒɛsteɪt/

gestate

Meaning
to carry and develop in the womb during pregnancy; to develop an idea over a period of time
Example
The mother whale gestates her calf for over a year.
C2 verb /ˌoʊvərˈstraɪd/

overstride

Meaning
To stride over something; to step across with long steps.
Example
He managed to overstride the narrow stream with ease.
C2 verb /ˈkʌzən/

cozen

Meaning
to deceive, cheat, or trick someone
Example
He cozened the old man out of his money.
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 /səˈfjuːz/

suffuse

Meaning
to gradually spread through or over something
Example
A warm glow suffused her face as she smiled.
C2 noun /ˈɡoʊld.moʊ.hɜːr/

Goldmohur

Meaning
A tropical tree with bright orange-red flowers, also known as flame tree or royal poinciana
Example
The goldmohur tree bloomed beautifully in the summer heat.
C2 noun ট্রোপোস্ফিয়ার

troposphere

Meaning
The lowest layer of Earth's atmosphere where weather phenomena occur.
Example
The troposphere is where weather phenomena occur.
C2 verb /prɪˈværɪkeɪt/

prevaricate

Meaning
to avoid telling the truth by not giving a direct answer
Example
The politician began to prevaricate when asked about the scandal.
C2 noun /ˌpɜː.spɪˈkæs.ɪ.ti/

perspicacity

Meaning
Sharp insight, keen understanding and discernment.
Example
Her perspicacity in business decisions led to success.
C2 noun ˌæm.ɔː.tɪˈzeɪ.ʃən

amortization

Meaning
The process of paying off debt with regular payments over time.
Example
The amortization schedule showed a 10-year repayment plan.
C2 noun /skɪf/

skiff

Meaning
a small, light boat usually for one person
Example
The fisherman paddled his skiff across the lake.
C2 noun /ˌdaɪələˈtɪʃən/

dialectician

Meaning
A person skilled in dialectic or logical argument.
Example
Socrates is often considered the greatest dialectician in history.
C2 noun /ˌɪrɪˈdɛsəns/

iridescence

Meaning
a play of lustrous, changing colors like those of a rainbow
Example
The butterfly's wings shimmered with iridescence.
C2 noun /proʊˈsiː.ni.əm/

proscenium

Meaning
the part of a theater stage in front of the curtain; the arch framing the stage
Example
The actors bowed at the proscenium before leaving the stage.
C2 verb ɪmˈbaɪb

imbibe

Meaning
Absorb or assimilate ideas or knowledge. To drink or take in.
Example
He tried to imbibe the wisdom from his mentor.
C2 noun /oʊd/

ode

Meaning
a lyrical poem, often expressing praise or strong emotions
Example
The poet wrote an ode to the beauty of nature.
C2 adjective /ˈdæpər/

dapper

Meaning
Neat, stylish, and well-dressed in appearance.
Example
He looked very dapper in his new suit.
C2 adjective /pəˈnjʊəriəs/

penurious

Meaning
extremely poor; poverty-stricken; miserly
Example
The penurious family struggled to buy food.
C2 noun /ˌɒstɛnˈteɪʃən/

ostentation

Meaning
excessive display of wealth or knowledge intended to attract admiration or envy
Example
The billionaire’s party was full of ostentation and luxury.
C2 verb /trænˈspoʊz/

transpose

Meaning
to change the order or position of something
Example
The editor transposed two paragraphs in the article.
C2 verb /ɪˈdjuːs/

educe

Meaning
To draw out or bring forth something latent or hidden.
Example
The teacher tried to educe a response from the shy student.
C2 noun /ˈjoʊmən/

yeoman

Meaning
A farmer who cultivates his own land; also used to describe someone performing loyal, useful service.
Example
He did yeoman service in completing the project on time.
C2 noun /ˈkoʊ.tə.ri/

coterie

Meaning
a small, exclusive group of people with shared interests
Example
He belonged to a coterie of artists who met every Friday.
C2 noun /ˈmeɪdənˌhʊd/

maidenhood

Meaning
The state of being a maiden; girlhood or virginity.
Example
The poem celebrated the innocence of maidenhood.
C2 noun /ˈræp.aɪn/

rapine

Meaning
the violent seizure of someone's property
Example
The war was marked by rapine and destruction.
C2 verb /əˈvɜːr/

aver

Meaning
to state or assert something confidently and strongly
Example
She averred that she was innocent.
C2 noun /dɪˈpɑːzɪtər/

depositor

Meaning
a person who places money in a bank or financial institution
Example
The bank provides insurance to protect depositors’ funds.
C2 noun /ˈmeɪlstrəm/

maelstrom

Meaning
A powerful whirlpool in the sea or a situation of confused movement and turmoil.
Example
The ship was caught in a maelstrom of waves and wind.
C2 verb /ˈsɛreɪt/

serrate

Meaning
To make a saw-toothed edge or notched margin.
Example
The craftsman serrated the knife blade for better cutting.
C2 noun /meɪˈlɑːnʒ/

melange

Meaning
A mixture of different things or styles.
Example
The festival offered a melange of music, food, and art.
C2 noun /naɪˈdʒel.ə/

Nigella

Meaning
small black seeds with a nutty, slightly bitter flavor, also known as black cumin or black seed
Example
Sprinkle nigella seeds on top of the bread before baking.
C2 noun /ˈtʃæm.pæk/

Champak

Meaning
a fragrant yellow or white flower from a tree native to South Asia, used in perfumes and religious ceremonies
Example
The champak tree in the temple courtyard bloomed with golden flowers.
C2 adjective /ˈbæti/

batty

Meaning
crazy or eccentric in behavior
Example
The old man down the street is a bit batty but harmless.
C2 verb /ˈproʊtjuːbəreɪt/

protuberate

Meaning
To swell out or bulge.
Example
The roots began to protuberate from the ground.
C2 verb /pərˈtɪkjələrˌaɪz/

particularize

Meaning
to mention or describe something in detail
Example
The witness was asked to particularize the events of that night.
C2 verb /ˈstjuːpɪˌfaɪ/

stupefy

Meaning
to make someone unable to think clearly, usually because of surprise or shock
Example
The magician's tricks stupefied the audience.
C2 noun /ˌɔːltərˈkeɪʃən/

altercation

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

obfuscation

Meaning
The action of making something obscure, unclear, or unintelligible.
Example
The obfuscation of the data made it difficult to interpret.
C2 adjective /bɒmˈbæstɪk/

bombastic

Meaning
using pompous or inflated language with little meaning
Example
The professor’s bombastic lecture impressed no one.
C2 noun /ˈʃʊərəti/

surety

Meaning
a person who takes responsibility for another's performance of an undertaking, such as appearing in court or paying a debt
Example
The landlord required a surety before renting the apartment.
C2 adjective /ˈtæsɪtɜrn/

taciturn

Meaning
reserved or uncommunicative in speech; saying little
Example
He was a taciturn man who rarely spoke in meetings.
C2 adjective /ˌɪnkoʊˈɜːrsəbl̩/

incoercible

Meaning
Not capable of being forced, compelled, or restrained.
Example
Her incoercible spirit inspired others to fight for justice.
C2 adjective /ˌɪnɪˈsɛnʃəl/

inessential

Meaning
not necessary or important; not essential
Example
The report removes all inessential details to stay focused.
C2 noun /ˈʒɑːndɑːrm/

gendarme

Meaning
A French police officer, especially a member of a military-style police force.
Example
The gendarme stopped the car for a routine check.
C2 noun /ˈkreɪniəm/

cranium

Meaning
the skull, especially the part enclosing the brain
Example
The archaeologists carefully examined the ancient cranium.
C2 adjective /ˈfæð.əm.ləs/

fathomless

Meaning
impossible to understand or measure; very deep
Example
The ocean seemed fathomless as it stretched to the horizon.
C2 noun /ˈɔːrdʒi/

orgy

Meaning
A wild party involving excessive indulgence, especially of a sexual nature.
Example
The novel described a scandalous orgy in a wealthy mansion.
C2 noun /haɪˈdrɒl.ɪ.sɪs/

hydrolysis

Meaning
A chemical process that breaks down compounds by adding water, splitting complex molecules into simpler forms.
Example
Hydrolysis breaks down complex molecules into simpler forms.
C2 noun /ˈʃæd.ək/

Shaddock

Meaning
a large citrus fruit similar to grapefruit; pomelo
Example
The shaddock is the largest citrus fruit in the world.
C2 noun /ˈhɒthɛd/

hothead

Meaning
a person who acts quickly and without thinking when angry
Example
He is such a hothead that he often starts arguments.
C2 noun /ˌsɜːrkəmləˈkjuːʃn/

circumlocution

Meaning
the use of many words when fewer would do, especially to avoid stating something directly
Example
The politician's speech was filled with circumlocution.
C2 noun /rɪˈpoʊst/

riposte

Meaning
a quick and clever reply to criticism or an insult
Example
Her sharp riposte left everyone in silence.
C2 noun /ˈdeɪ.mæn/

day-man

Meaning
a worker employed by the day; a day laborer
Example
The farmer hired a day-man to help with the harvest.
C2 noun /sɪnˈtɪl.ə/

scintilla

Meaning
A tiny trace or spark of a specified quality or feeling.
Example
There wasn’t a scintilla of doubt in her mind.
C2 adjective /ˈdaʊti/

doughty

Meaning
brave, valiant, courageous
Example
The doughty soldier never backed down from a challenge.
C2 noun /ˈzel.ət/

zealot

Meaning
A person who is fanatical and uncompromising in pursuit of their ideals.
Example
He was considered a zealot for his strict political views.
C2 verb /ˈnɔːzieɪt/

nauseate

Meaning
To make someone feel sick, with an inclination to vomit.
Example
The spoiled food nauseated him quickly.
C2 noun /drɛɡz/

dregs

Meaning
the remnants of a liquid left in a container, together with any sediment or grounds; the most worthless part of something
Example
He drank the dregs of the coffee before leaving.
C2 adjective /ˈɪn.dɪ.dʒənt/

indigent

Meaning
lacking the necessities of life due to poverty; very poor
Example
The hospital offers free care to indigent patients.
C2 adjective /ˈhɔːrtətɪv/

hortative

Meaning
Giving strong encouragement or urging.
Example
The teacher gave a hortative speech to motivate the students before the exam.
C2 noun/adjective /ˈtraɪkʌlər/

tricolor

Meaning
A flag with three colors; consisting of three colors.
Example
The French tricolor is one of the most famous national flags in the world.
C2 adjective /ˈɔːrnəri/

ornery

Meaning
bad-tempered and combative; stubborn
Example
The ornery old man refused to leave his chair.
C2 noun /ɪˈskʌtʃən/

escutcheon

Meaning
a shield or emblem bearing a coat of arms
Example
The family crest was displayed on the escutcheon above the fireplace.
C2 verb /əˈfaɪəns/

affiance

Meaning
to promise or pledge marriage; to formally engage
Example
They decided to affiance after years of friendship.
C2 verb /ɪnˈdaɪt/

indite

Meaning
To write or compose (literary or formal works).
Example
The poet indited a heartfelt sonnet.
C2 noun /ˌvɪvɪˈsɛkʃən/

vivisection

Meaning
the practice of performing operations on live animals for scientific research
Example
Vivisection has long been a controversial topic among scientists and animal rights activists.
C2 noun /ˈwɪtlɪŋ/

witling

Meaning
a person who has little wit or pretends to be witty
Example
He acted like a witling among scholars.
C2 verb /mʌlkt/

mulct

Meaning
to punish by a fine or to defraud someone of money
Example
The corrupt official was mulcted for his misconduct.
C2 noun /ˈwɔːrˌmʌŋɡər/

warmonger

Meaning
A person who advocates or promotes war or conflict.
Example
The leader was criticized as a warmonger by his opponents.
C2 verb /ʌpˈhiːv/

upheave

Meaning
to lift or raise something forcefully; to cause to rise suddenly
Example
The workers had to upheave the heavy stone to clear the path.
C2 verb /ɪˈnæmər/

enamor

Meaning
to be filled with love or admiration for
Example
She was enamored with the beautiful scenery.
C2 noun /ˈkæriən/

carrion

Meaning
the decaying flesh of dead animals
Example
Vultures feed on carrion left in the fields.
C2 noun /kəˈnaɪ.vəns/

connivance

Meaning
the act of secretly allowing or being involved in wrongdoing
Example
The theft happened with the connivance of the security guard.
C2 noun /ˈdɛrɪk/

derrick

Meaning
A framework or tower used for supporting a crane, especially for oil drilling or lifting heavy loads.
Example
The workers assembled a derrick at the oil drilling site.
C2 adjective /ˌɪnkəmˈprɛsəbl/

incompressible

Meaning
Not able to be pressed or squeezed into a smaller space.
Example
Liquids are generally considered incompressible.
C2 verb /ˈdɛsɪkreɪt/

desecrate

Meaning
to treat a sacred place or object with disrespect or violation
Example
The vandals desecrated the ancient temple walls with graffiti.
C2 noun /ˌɪndɛnˈteɪʃən/

indentation

Meaning
A space left at the beginning of a line of text; a notch or deep recess on a surface.
Example
The teacher asked the students to use proper indentation in their essays.
C2 noun /ˌvæs.ɪˈleɪ.ʃən/

Vacillation

Meaning
the inability to decide between different opinions or actions; indecision
Example
His constant vacillation between career choices frustrated his parents.
C2 noun /ɪnˈhɪərəns/

inherence

Meaning
The state of being an essential or permanent part of something.
Example
The inherence of risk is part of every business venture.
C2 verb /bɪˈstraɪd/

bestride

Meaning
To sit or stand astride something; to dominate over.
Example
The statue bestrides the city square.
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 noun /ˈɪəri/

eyrie

Meaning
the nest of a bird of prey, such as an eagle, typically built high on a cliff or tree
Example
The eagle’s eyrie was perched high on the mountain cliff.
C2 noun /ˈhɜːrmɪtɪdʒ/

hermitage

Meaning
A secluded residence or retreat, often for a hermit or religious recluse.
Example
The monk spent years in a hermitage deep in the forest.
C2 adjective /kənˈfɔːrməbl/

conformable

Meaning
Capable of being adapted or consistent with something; compliant.
Example
His actions were conformable to the rules of the institution.
C2 verb /əˈvaʊtʃ/

avouch

Meaning
to affirm or assert something as true
Example
He avouched his innocence before the judge.
C2 noun /nɛˈkroʊsɪs/

necrosis

Meaning
the death of body tissue due to disease, injury, or lack of blood supply
Example
The doctor explained that the patient’s wound showed signs of necrosis.
C2 adjective /ˈɔːrəˌtʌnd/

orotund

Meaning
full, rich, and clear in sound; pompous in style
Example
The actor's orotund voice filled the theater.
C2 noun /ˈplɛnɪtjuːd/

plenitude

Meaning
the condition of being full or abundant; a great quantity
Example
The garden was a plenitude of flowers in spring.
C2 noun /ˌædʒʊˈreɪʃən/

adjuration

Meaning
a solemn urging or appeal
Example
The priest made an adjuration for peace and unity.
C2 noun /ˌvɛəriəˈɡeɪʃən/

variegation

Meaning
The appearance of differently colored zones in the leaves, flowers, or stems of plants.
Example
Variegation makes the foliage look more attractive.
C2 adjective /ˈærənt/

arrant

Meaning
complete or utter (used negatively, e.g., 'arrant nonsense')
Example
His excuse was arrant nonsense.
C2 adjective /ˈfuːlˌhɑːrdi/

foolhardy

Meaning
Recklessly bold or rash; taking foolish risks.
Example
It was foolhardy of him to climb the mountain without proper gear.
C2 adjective /ɪmˈpɒndərəbl̩/

imponderable

Meaning
Something difficult or impossible to estimate, assess, or understand
Example
The outcome of the election depends on many imponderable factors.
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.
C2 noun /ˌklɛptəˈmeɪniæk/

kleptomaniac

Meaning
A person with an irresistible urge to steal, typically without need or profit.
Example
The kleptomaniac was caught shoplifting again.
C2 verb /ˈfɛtər/

fetter

Meaning
to restrain or restrict someone’s freedom
Example
The strict rules fettered the creativity of the students.
C2 noun /məˈnɪʃən/

monition

Meaning
A warning or caution, often of a religious or moral nature.
Example
The priest gave a monition against dishonesty.
C2 noun /ˈræŋ.kər/

rancor

Meaning
A feeling of deep and bitter anger or resentment.
Example
There was a rancor between the two rivals that never faded.
C2 noun /ˈkɪləˌliːtər/

kiloliter

Meaning
a unit of capacity equal to 1,000 liters
Example
The tank can hold up to three kiloliters of water.
C2 noun /krəˈnɒmɪtər/

chronometer

Meaning
An instrument for measuring time precisely, especially used in navigation.
Example
The sailor relied on the chronometer to determine his position at sea.
C2 noun /bɪər/

bier

Meaning
a frame or stand on which a coffin or body is placed before burial or cremation
Example
The coffin was placed on the bier during the funeral service.
C2 adverb /ˈaɪsɪli/

icily

Meaning
In a very cold, unfriendly, or hostile manner.
Example
She replied icily to his question.
C2 adjective /ˈlaɪðsəm/

lithesome

Meaning
gracefully flexible and supple
Example
Her lithesome figure allowed her to move like a ballerina.
C2 adjective /ˌɛkstrəˌdʒuːˈdɪʃəl/

extrajudicial

Meaning
done outside the authority of the legal system or judicial process
Example
The activists condemned the extrajudicial killings.
C2 noun /ˈbɔːbəl/

bauble

Meaning
A small, decorative trinket or ornament, often of little value.
Example
She wore a shiny bauble around her neck.
C2 noun /fəˈlɪsɪti/

felicity

Meaning
intense happiness; the ability to find appropriate expression for one's thoughts
Example
She was known for her felicity in conversation and cheerful nature.
C2 noun /ˈhɛptɑːrki/

heptarchy

Meaning
A group of seven rulers or governments, especially the seven Anglo-Saxon kingdoms in early England.
Example
The history book described the heptarchy of Anglo-Saxon England.
C2 noun /ˈpɛntəˌɡræm/

pentagram

Meaning
A five-pointed star often used as a symbol in magic, mysticism, or religion.
Example
The wizard drew a pentagram on the floor as part of the ritual.
C2 verb /ˈæntɪkweɪt/

antiquate

Meaning
To make something old-fashioned or obsolete.
Example
The rise of digital cameras antiquated traditional film photography.
C2 adjective /ˈpeɪli/

paly

Meaning
striped with different colors, usually used in heraldry
Example
The knight’s shield was decorated with paly stripes of red and gold.
C2 noun /ˈdɛvɪlri/

devilry

Meaning
Wicked or cruel behavior; mischievous actions.
Example
The children were full of devilry on Halloween night.
C2 noun /ˌluː.mɪˈnɛs.əns/

luminescence

Meaning
The emission of light by a substance not resulting from heat; a type of cold light.
Example
The luminescence of the fireflies lit up the forest.
C2 verb /bɪˈtaɪd/

betide

Meaning
to happen or occur, usually of something that befalls someone
Example
Woe betide anyone who breaks the rules.
C2 adjective /ʌnəˈpiːzd/

unappeased

Meaning
Not satisfied or calmed; still feeling discontent or anger
Example
Despite the apology, she remained unappeased.
C2 adjective ˌnjʊə.rəʊ.saɪənˈtɪ.fɪk

neuroscientific

Meaning
Related to the scientific study of the brain and nervous system.
Example
Neuroscientific research helps understand memory retention.
C2 adjective /fluːˈɛnʃəl/

fluential

Meaning
Having the power to influence or flowing freely (rare/archaic usage).
Example
The fluential speaker captivated the entire audience.
C2 verb /ɪˈstreɪndʒ/

estrange

Meaning
to cause someone to no longer be close or affectionate; to alienate
Example
His constant criticism began to estrange him from his friends.