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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 adjective /ˈtɛsəleɪtɪd/

tessellated

Meaning
arranged in a pattern of repeated shapes fitting together without gaps
Example
The tessellated floor was made of colorful tiles arranged in perfect symmetry.
C2 noun /dɪˈklɪvɪti/

declivity

Meaning
a downward slope of ground
Example
They carefully climbed down the declivity of the hill.
C2 noun /ʌnˈkloʊðɪŋ/

unclothing

Meaning
the act or process of removing clothing
Example
The child quickly ran inside for unclothing after playing in the mud.
C2 verb /kɔːk/

caulk

Meaning
to seal a crack or gap with a waterproof filler
Example
He caulked the window frames to stop the draft.
C2 noun /ruːθ/

ruth

Meaning
A feeling of pity, compassion, or sorrow.
Example
He felt no ruth for the people he had betrayed.
C2 noun /flɛk/

fleck

Meaning
a small spot or mark, often of a different color
Example
There was a fleck of paint on the floor.
C2 adjective /ˈsɪlvən/

sylvan

Meaning
Relating to or characteristic of the woods or forest.
Example
The cottage was set in a sylvan landscape full of tall trees.
C2 noun /ˈlɪtərdʒi/

liturgy

Meaning
A form or formulary according to which public religious worship is conducted.
Example
The priest followed the liturgy during the Sunday mass.
C2 noun /ˈsaʊər wʊd ˈæp.əl/

Sour wood apple

Meaning
a tropical fruit with hard shell and tangy flesh; elephant apple
Example
The sour wood apple has a unique taste that many people enjoy.
C2 verb /rɪˈdaʊnd/

redound

Meaning
to contribute greatly to a result or consequence, usually beneficial
Example
His hard work will redound to the success of the company.
C2 noun /ˈdʒaɪənt sneɪk hɛd/

Giant snake head

Meaning
a large predatory freshwater fish with an elongated body and snake-like head
Example
The giant snake head is a fierce predator that can survive out of water for hours.
C2 adjective /ˈfrɛtfəl/

fretful

Meaning
Feeling or showing distress or irritation.
Example
The baby was fretful all night and could not sleep.
C2 verb /dɪsˈɡɔːrdʒ/

disgorge

Meaning
to discharge or pour out; to vomit; to give up reluctantly
Example
The broken pipe disgorged water all over the floor.
C2 noun /fɔːn/

faun

Meaning
a mythological creature that is half human and half goat
Example
The sculpture depicted a playful faun dancing in the forest.
C2 noun prəˈklɪv.ə.ti

proclivity

Meaning
A tendency to choose or do something regularly; an inclination or predisposition toward a particular thing.
Example
She has a proclivity for learning new languages.
C2 noun /ˈtuːb.roʊz/

Tube-rose

Meaning
a night-blooming flower with an intensely sweet fragrance, native to Mexico
Example
The tuberose flowers filled the evening air with their heavenly scent.
C2 adjective /ɪˈbʊliənt/

ebullient

Meaning
cheerful and full of energy
Example
She was ebullient after receiving the good news.
C2 verb /ˈfʌdəl/

fuddle

Meaning
To confuse or stupefy, especially with alcohol or overwhelming information.
Example
The complicated instructions fuddled the new employees.
C2 adjective /ˈpaɪbɔːld/

piebald

Meaning
having irregular patches of two colors, especially black and white
Example
The farmer owns a piebald horse with black and white spots.
C2 noun /kənˈsaɪnər/

consignor

Meaning
a person or company that sends goods to be sold or transported
Example
The consignor shipped the goods to the warehouse.
C2 adjective /ˌkloʊs ˈhɔːld/

close-hauled

Meaning
of a sailing ship, sailing as nearly as possible towards the direction from which the wind is blowing.
Example
The yacht was close-hauled as it cut through the waves.
C2 noun /kənˈfɛsər/

confessor

Meaning
A person who confesses sins or secrets, especially to a priest.
Example
The confessor listened patiently to the troubled man.
C2 noun /ˈpælɪmpsɛst/

palimpsest

Meaning
a manuscript or document that has been written over but still bears traces of earlier writing; something reused or altered but still retaining traces of its earlier form
Example
The ancient manuscript was a palimpsest, showing faint traces of previous texts beneath the new writing.
C2 adjective /ˈsʌb.æs.ɪd/

subacid

Meaning
Slightly sour or acidic in taste or nature.
Example
The fruit had a subacid flavor that was refreshing on a hot day.
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 /ˈkær.ə.weɪ siːdz/

Caraway seeds

Meaning
aromatic seeds of the caraway plant used as a spice in cooking and baking
Example
The bread was flavored with caraway seeds.
C2 noun /ˈkɔːrsər/

courser

Meaning
a swift horse or a hunting horse
Example
The knight rode a fast courser into battle.
C2 noun /sɑːrˈkɒfəɡəs/

sarcophagus

Meaning
A stone coffin, often decorated, used in ancient times.
Example
The museum displayed a beautifully carved sarcophagus from ancient Egypt.
C2 noun /ˈpɛrɪstaɪl/

peristyle

Meaning
A continuous porch formed by a row of columns surrounding the perimeter of a building or courtyard.
Example
The Roman villa featured a beautiful peristyle garden.
C2 noun /prəˈtuːbərəns/

protuberance

Meaning
A rounded swelling or lump on a surface.
Example
The doctor examined the small protuberance on his arm.
C2 verb /bɪˈhuːv/

behoove

Meaning
to be necessary, proper, or appropriate for someone to do
Example
It would behoove you to study before the exam.
C2 noun /riːm/

ream

Meaning
A large quantity of paper (typically 500 sheets); informally, a large amount of something.
Example
The office ordered ten reams of paper.
C2 noun /ˈfrɛʃɪt/

freshet

Meaning
A sudden overflow of a stream or river caused by heavy rain or melting snow.
Example
After the storm, the river turned into a raging freshet.
C2 noun /ˌfoʊˈtɑːmɪtər/

photometer

Meaning
an instrument for measuring the intensity of light
Example
The scientist used a photometer to measure the light in the laboratory.
C2 noun /mɪlk raɪs/

Milk rice

Meaning
A sweet dessert made from rice cooked with milk and sugar
Example
My grandmother makes delicious milk rice for special occasions.
C2 adjective /ɪˈkwɪvəkəl/

equivocal

Meaning
Open to more than one interpretation; ambiguous.
Example
His equivocal answer confused everyone.
C2 adjective /veɪnˈɡlɔːriəs/

vainglorious

Meaning
Excessively proud of oneself or one’s achievements; boastful.
Example
The vainglorious leader boasted about his minor achievements.
C2 verb /ˈreə.rɪ.faɪ/

rarefy

Meaning
To make something less dense or more refined.
Example
The air rarefies as you climb higher into the mountains.
C2 noun /ˈnoʊmənˌkleɪtʃər/

nomenclature

Meaning
A system of names or terms used in a particular science, art, or field.
Example
The chemical nomenclature can be difficult for beginners to understand.
C2 adjective /pəˈlædʒ.ɪk/

pelagic

Meaning
Relating to the open sea or ocean water column, away from the shore.
Example
Pelagic fish like tuna are found far from the coast.
C2 noun /næt/

Gnat

Meaning
a small flying insect that bites people and animals
Example
The gnat buzzed around my head while I was reading.
C2 verb /əˈkuːtə/

accoutre

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

off-key

Meaning
out of tune; not in accordance with expected standards
Example
The singer was slightly off-key during the performance.
C2 noun /juːˌtrɑː.fɪˈkeɪ.ʃən/

eutrophication

Meaning
Excessive richness of nutrients in a lake or other body of water, frequently due to runoff from the land, which causes a dense growth of plant life and death of animal life from lack of oxygen.
Example
Excess fertilizers lead to eutrophication in lakes.
C2 noun /ˌpɛrəɡrɪˈneɪʃən/

peregrination

Meaning
A long journey or wandering, especially on foot.
Example
Their peregrination across Asia lasted two years.
C2 verb /voʊˈsɪfəˌreɪt/

vociferate

Meaning
to shout, complain, or argue loudly or vehemently
Example
The protesters vociferated against the unfair law.
C2 noun /ˈfʌriər/

furrier

Meaning
A person who prepares or deals in furs.
Example
The furrier displayed fine coats in his shop.
C2 noun /ˌfoʊ.mənˈteɪ.ʃən/

fomentation

Meaning
The action of instigating or stirring up; also the application of warm substances to the body to ease pain.
Example
His speech led to the fomentation of violence in the region.
C2 noun /əˈklɪvɪti/

acclivity

Meaning
An upward slope or incline on the ground.
Example
The hikers struggled as they climbed the steep acclivity.
C2 adjective /juːˈʒʊəriəs/

usurious

Meaning
Charging excessively high interest rates on loans.
Example
The bank was accused of offering loans at usurious rates.
C2 noun/verb /ɡraʊs/

grouse

Meaning
A type of bird; or to complain or grumble persistently.
Example
He always grouses about the long hours at work.
C2 noun /ˈdɒɡ roʊz/

Dog-rose

Meaning
A wild rose species with pink or white flowers and thorny stems, common in hedgerows
Example
The dog-rose bush grew wild along the countryside path.
C2 noun /kænt/

cant

Meaning
Hypocritical and insincere talk, especially about moral or religious principles.
Example
The politician's speech was filled with cant about honesty and integrity.
C2 adjective /ˈɛksplɪkəbəl/

explicable

Meaning
able to be explained or understood
Example
His sudden anger was explicable given the stressful situation.
C2 noun /ˈænɪ siːd/

Ani seed

Meaning
Small aromatic seeds used as a spice and for medicinal purposes, with a sweet licorice-like flavor
Example
Anise seeds are often used in traditional desserts and teas.
C2 noun /ˈplɔːdɪt/

plaudit

Meaning
an expression of praise or approval
Example
The actor received plaudit for his outstanding performance.
C2 adjective /ɪnˈvɪdiəs/

invidious

Meaning
likely to arouse resentment, envy, or anger in others
Example
The manager's invidious remarks created tension among the employees.
C2 verb /bɪˈfɪt/

befit

Meaning
to be suitable for; to be appropriate to
Example
Formal attire befits the seriousness of the occasion.
C2 verb /dʒaɪb/

gibe

Meaning
To make insulting or mocking remarks; to taunt.
Example
The fans gibed at the losing team.
C2 adjective /kəˈrɛlətɪv/

correlative

Meaning
having a mutual relationship; corresponding
Example
The increase in temperature is correlative with the melting of glaciers.
C2 noun/adjective /prɪˈsɪpɪtənt/

precipitant

Meaning
As a noun: a substance that causes a substance to be deposited from a solution; as an adjective: acting hastily or impulsively.
Example
The chemist added a precipitant to the solution to observe the reaction.
C2 adjective /ˈfrəʊərd/

froward

Meaning
Difficult to deal with; contrary and disobedient.
Example
The teacher found the froward child hard to manage.
C2 noun /ˈdʌlərd/

dullard

Meaning
a slow or stupid person
Example
He was considered a dullard by his classmates.
C2 adjective /ˈʃɪft.ləs/

shiftless

Meaning
Lacking ambition or the ability to accomplish anything; lazy and unmotivated.
Example
He was seen as a shiftless young man with no goals.
C2 verb /frɪz/

frizz

Meaning
to form into small, tight curls or cause hair to become fuzzy and tangled
Example
The humid weather caused her hair to frizz.
C2 adjective /kəˈprɪʃəs/

capricious

Meaning
given to sudden and unaccountable changes of mood or behavior
Example
The stock market can be capricious, shifting dramatically without warning.
C2 noun /ˈɒfərtɔːri/

offertory

Meaning
The part of a religious service when offerings are collected; the offering itself.
Example
The offertory was taken during the Sunday service.
C2 verb /kɒnˈkætəneɪt/

concatenate

Meaning
To link things together in a series or chain.
Example
The program concatenates two strings into one.
C2 noun /ˈkɒŋ.ɡru.əns/

congruence

Meaning
Harmony, compatibility and agreement between different elements.
Example
The congruence between their ideas made collaboration easy.
C2 noun /ˌdɛkləˈmeɪʃən/

declamation

Meaning
a formal speech delivered with rhetorical or dramatic effect
Example
Her declamation captivated the audience at the competition.
C2 verb /ˈlæs.ə.reɪt/

lacerate

Meaning
to tear or cut deeply in the skin or flesh
Example
The broken glass lacerated his hand.
C2 noun /ˈdaɪəˌdɛm/

diadem

Meaning
A crown or headband worn as a symbol of royalty or authority.
Example
The queen wore a glittering diadem at the coronation.
C2 noun /ˈlaɪər/

lier

Meaning
a person who tells lies; an alternative spelling of liar
Example
No one trusted him because he was known as a habitual lier.
C2 noun /ˈklævɪkəl/

clavicle

Meaning
the collarbone, a long bone that serves as a strut between the shoulder blade and the sternum
Example
He fractured his clavicle in the accident.
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 /əˈsweɪdʒ/

assuage

Meaning
To make an unpleasant feeling less intense; to ease or relieve.
Example
The kind words helped assuage her anxiety.
C2 noun /ˈpɒsi/

posse

Meaning
A group of people, often friends or a group organized to support or enforce the law.
Example
He arrived at the party with his posse of friends.
C2 adjective /ˈlaɪbələs/

libelous

Meaning
containing or constituting a false published statement that damages a person's reputation
Example
The article was found to be libelous and had to be retracted.
C2 adjective /ˈroʊziət/

roseate

Meaning
Having a pink color; optimistic or idealistic.
Example
She looked at the future with roseate optimism.
C2 noun /mɪˈsɑːdʒɪnɪst/

misogynist

Meaning
A person who dislikes, despises, or is strongly prejudiced against women.
Example
Many condemned his speech as the words of a misogynist.
C2 noun /ɪnˈkɒnstənsi/

inconstancy

Meaning
The quality of changing frequently or being unreliable.
Example
The inconstancy of the weather makes planning difficult.
C2 verb /ˈhæroʊ/

harrow

Meaning
to cause distress or torment; also to break up and smooth soil with a farm tool
Example
The tragic news harrowed the entire family.
C2 verb /dɪsˈtɛnd/

distend

Meaning
to swell or expand by pressure from within
Example
Her stomach began to distend after the large meal.
C2 noun /ˈpær.əkˌsɪz.əm/

paroxysm

Meaning
A sudden, violent outburst of emotion or activity.
Example
She was seized by a paroxysm of laughter.
C2 noun /ˈlɪmərɪk/

limerick

Meaning
a humorous five-line poem with a specific rhythm and rhyme scheme (AABBA).
Example
She recited a funny limerick at the party.
C2 noun /ˈtʃaɪ.nə roʊz/

China-rose

Meaning
a tropical flowering plant with large, showy flowers in various colors
Example
The bright red China-rose flowers decorated the entrance of the house.
C2 adjective /dɪˈrɒɡətɪv/

derogative

Meaning
Expressing a low opinion or showing lack of respect.
Example
He made a derogative remark about her work.
C2 noun /ˌrækənˈtɜːr/

Raconteur

Meaning
a person who tells anecdotes in a skillful and amusing way
Example
The old man was a gifted raconteur who entertained everyone with his stories.
C2 adjective /ˌɪn.trəˈmjʊə.rəl/

intramural

Meaning
Occurring within the walls of a single institution, especially a school or college.
Example
The college organizes intramural sports competitions every semester.
C2 noun ˈpær.ə.ɡən

paragon

Meaning
A person or thing regarded as a perfect example of a particular quality; a model of excellence.
Example
Neom is a paragon of sustainable urban design.
C2 noun /kənˈkɔːrdəns/

concordance

Meaning
Agreement; also an alphabetical index of the principal words in a book.
Example
There is a strong concordance between the two reports.
C2 noun /ˈkætɪˌkɪzəm/

catechism

Meaning
A summary of religious principles often in the form of questions and answers; also a set of fixed questions or beliefs.
Example
The priest taught the children the catechism every Sunday.
C2 noun /ˈbreɪziər/

Brazier

Meaning
a worker in brass; a portable container for burning charcoal or coal
Example
The brazier crafted beautiful brass ornaments.
C2 noun /ˈkjʊriˌoʊ/

curio

Meaning
a small unusual or interesting object, often collected for its rarity
Example
She bought a curio from the antique shop.
C2 adjective /ˈpjʊəraɪl/

puerile

Meaning
childishly silly or immature
Example
His puerile jokes annoyed the audience.
C2 noun /ɪnˈsaɪzər/

incisor

Meaning
a narrow-edged tooth at the front of the mouth, adapted for cutting
Example
The dentist noted that his upper left incisor was chipped.
C2 noun ˌfjuːmɪˈɡeɪʃən

fumigation

Meaning
The practice of disinfecting or purifying an area using gas or smoke.
Example
Fumigation is an effective method to control pest infestations.
C2 noun /ˈɡæliən/

galleon

Meaning
A large sailing ship used mainly by Europeans from the 16th to 18th centuries.
Example
The Spanish galleon carried treasures across the Atlantic.
C2 verb /fɔːrˈdʒʌdʒ/

forejudge

Meaning
To judge beforehand without adequate information.
Example
It is unfair to forejudge someone without knowing the facts.
C2 adjective ˈɛr.jʊ.daɪt

erudite

Meaning
Having or showing great knowledge or learning; scholarly and intellectual.
Example
The professor's erudite lecture fascinated the students.
C2 noun /ˌdaɪ.jʊˈret.ɪk/

diuretic

Meaning
A substance that promotes the production of urine.
Example
Coffee has a mild diuretic effect.
C2 verb ˈɪn.kʌl.keɪt

inculcate

Meaning
Instill an attitude, idea, or habit by persistent instruction; to teach and impress by frequent repetitions.
Example
Parents should inculcate good values in their children.
C2 noun /ˈtrɒɡlədaɪt/

troglodyte

Meaning
A person who lives in a cave or is considered old-fashioned and out of touch.
Example
Some called him a troglodyte for refusing to use modern technology.
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 adjective /ɔːˈɡʌst/

august

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

foment

Meaning
To instigate or stir up (an undesirable or violent sentiment or course of action).
Example
The rebel leader tried to foment unrest among the people.
C2 verb /fɔːrˈfɛnd/

forfend

Meaning
to protect or defend against something undesirable; to prevent
Example
May good fortune forfend any danger from our journey.
C2 noun /ˈpɔl.zi/

Palsy

Meaning
paralysis, especially that which is accompanied by involuntary tremors; loss of muscle control
Example
The elderly man suffered from palsy in his hands.
C2 noun /ɪnˈsɪɡniə/

insignia

Meaning
A badge or symbol that shows rank, position, or membership.
Example
The soldier proudly wore the insignia of his regiment.
C2 noun məˌnɒp.ə.laɪˈzeɪ.ʃən

monopolization

Meaning
The process by which a company gains exclusive control over a commercial activity.
Example
The monopolization of industries can limit consumer choices.
C2 noun /rɪˈfɛkʃən/

refection

Meaning
a meal or the act of taking food and drink
Example
The monks gathered for their evening refection.
C2 adjective /ˈæpəˌleɪt/

appellate

Meaning
relating to appeals in a court of law
Example
The case was taken to an appellate court.
C2 adjective /bɒmˈbæstɪk/

bombastic

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

hypothecate

Meaning
to pledge something, such as property, as security for a debt without giving up possession of it.
Example
The company hypothecated its assets to secure the loan.
C2 verb /ɪkˈstruːd/

extrude

Meaning
to force something out through a small opening; to shape by pushing material through a mold
Example
The factory extrudes plastic pipes using modern machines.
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 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 /koʊˈædʒətər/

coadjutor

Meaning
a person who helps or assists another, especially in a religious or official capacity
Example
The bishop appointed a coadjutor to assist him with his duties.
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 noun, verb /ɡɔːl/

gall

Meaning
Annoyance, boldness, or to irritate.
Example
She had the gall to question his decision.