biocide
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C2 noun ˈbaɪəʊˌsaɪd

biocide

Meaning
A chemical substance or microorganism intended to destroy, deter, render harmless, or exert a controlling effect on any harmful organism.
Example
Biocides help control pests and reduce the spread of diseases.
C2 noun /ˈprɑːflɪɡəsi/

profligacy

Meaning
reckless wastefulness or extravagance
Example
His profligacy with money led him to bankruptcy.
C2 adjective /nɑːrld/

gnarled

Meaning
Twisted, rough, and knotted, especially with age.
Example
The old man had gnarled hands from years of hard work.
C2 noun /rɪˈsɪdɪˌvɪzəm/

recidivism

Meaning
The tendency of a convicted criminal to reoffend or relapse into criminal behavior.
Example
The government introduced new programs to reduce recidivism among former inmates.
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 /ˌɪnˌkeɪpəˈbɪləti/

incapability

Meaning
lack of ability or power to do something; inability or incompetence
Example
His incapability to manage the team led to serious problems.
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 /ˈɛndaɪv/ or /ˈɑːndɪv/

endive

Meaning
A leafy vegetable belonging to the chicory family, often used in salads.
Example
She added fresh endive to the salad for a slightly bitter flavor.
C2 noun /ˈkɒŋ.kɔː.dæt/

concordat

Meaning
An agreement or treaty, especially between the Vatican and a secular government.
Example
The concordat established the rights of the church within the country.
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.
C2 adjective /vaɪˈtjuːpərəbl̩/

vituperable

Meaning
Deserving of blame, censure, or harsh criticism.
Example
His reckless actions made him vituperable in the eyes of his colleagues.
C2 adjective /səˈleɪʃəs/

salacious

Meaning
Having or conveying undue or inappropriate sexual interest.
Example
The tabloid published a salacious story about the celebrity.
C2 noun /brəˈvjʊrə/

bravura

Meaning
a display of great skill and brilliance, especially in music or performance
Example
The pianist delivered a bravura performance that left the audience spellbound.
C2 noun /ˈmɪlɪt/

millet

Meaning
a small-seeded grass cultivated as a cereal crop
Example
Millet is often used as food in rural areas.
C2 noun /ˈpæntəˌskoʊp/

pantoscope

Meaning
An optical instrument that provides a wide or panoramic view.
Example
The scientist used a pantoscope to observe the entire horizon.
C2 noun /ˈæn.oʊd/

anode

Meaning
The positive electrode in a device such as a battery, where current flows into a polarized electrical device.
Example
The anode of the battery was corroded after long use.
C2 noun /frɒnd/

frond

Meaning
A large, divided leaf of a fern, palm, or similar plant.
Example
The fern's frond stretched gracefully over the garden path.
C2 verb /trænsˈfjuːz/

transfuse

Meaning
to transfer blood or another fluid into a vein or body part; to instill a quality or idea into someone or something
Example
The doctor had to transfuse blood into the patient after the surgery.
C2 noun /ˈpiːən/

paean

Meaning
A song or piece of writing expressing great praise or triumph.
Example
The article was a paean to the beauty of nature.
C2 noun /ˈvaɪəl/

viol

Meaning
A stringed musical instrument of the Renaissance and Baroque periods, played with a bow and similar to but distinct from the violin family.
Example
The musician played an old viol in the chamber music concert.
C2 noun /ɑːlˈfækʃən/

olfaction

Meaning
The sense of smell; the process of detecting and perceiving odors.
Example
Dogs have a highly developed sense of olfaction.
C2 noun /ˌpɒl.iˈsɪl.ə.bəl/

polysyllable

Meaning
a word with more than one syllable
Example
The word 'elephant' is a polysyllable because it has three syllables.
C2 adjective /ˌdɪspjuːˈteɪʃəs/

disputatious

Meaning
fond of or given to argument and debate
Example
His disputatious nature often led to heated conversations.
C2 adjective /səˈluːtəˌtɔri/

salutatory

Meaning
Relating to or expressing a greeting or an address, especially at the beginning of a speech.
Example
She delivered a salutatory address at the graduation ceremony.
C2 adjective /ˈpɛndjʊləs/

pendulous

Meaning
hanging down loosely; drooping
Example
The pendulous fruit weighed down the branch.
C2 adjective, noun /pləˈbiːən/

plebian

Meaning
alternate spelling of 'plebeian'; common or ordinary
Example
His tastes were rather plebian, favoring simple food and clothes.
C2 verb /skʌlk/

skulk

Meaning
to move or hide secretly, often because you are planning something bad or are feeling guilty
Example
He tried to skulk in the shadows to avoid being seen.
C2 verb /kwɒf/

quaff

Meaning
to drink something heartily or in large gulps, especially an alcoholic drink
Example
He quaffed a mug of ale after the long day.
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 /ˈfɔːθ.raɪt.nəs/

forthrightness

Meaning
The quality of being honest and straightforward; directness.
Example
Her forthrightness made her a respected journalist.
C2 adjective /ˌhæfˈhɑːr.tɪd/

halfhearted

Meaning
lacking enthusiasm or determination; unenthusiastic
Example
His halfhearted attempt to study did not bring good results.
C2 noun /ˈɔːrdnəns/

ordnance

Meaning
Military supplies including weapons, ammunition, and combat equipment.
Example
The army stored ordnance in a secure facility outside the city.
C2 verb /prɪˈpɒndəreɪt/

preponderate

Meaning
To be greater in influence, weight, or number.
Example
In the debate, logical arguments preponderated over emotional appeals.
C2 noun /ˈprɒsədi/

prosody

Meaning
The patterns of rhythm and sound used in poetry and speech.
Example
The professor explained how prosody affects the mood of a poem.
C2 verb /kəˈdʒoʊl/

cajole

Meaning
To persuade someone to do something by flattery or gentle urging.
Example
She managed to cajole her friend into joining the trip.
C2 verb /rɛst/

wrest

Meaning
to forcibly pull something from a person's grasp; to seize with effort or struggle
Example
The police had to wrest the weapon from the suspect's hand.
C2 noun /skɪf/

skiff

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

betake

Meaning
to go or resort to a place or course of action, especially as a response; to apply oneself
Example
After dinner, she betook herself to her room to read.
C2 noun /næˈteɪʃən/

natation

Meaning
The act or sport of swimming.
Example
She took lessons in natation to improve her swimming skills.
C2 adjective /ɡælˈvænɪk/

galvanic

Meaning
Relating to electricity produced by chemical action; sudden and dramatic.
Example
The news had a galvanic effect on the audience.
C2 verb /ˈhʊdwɪŋk/

hoodwink

Meaning
To deceive or trick someone.
Example
The scammer hoodwinked many people with false promises.
C2 noun /rɛtʃ/

wretch

Meaning
an unfortunate or miserable person; a despicable or contemptible person
Example
The poor wretch was left out in the cold with no shelter.
C2 adjective /ˈfæləbl/

fallible

Meaning
capable of making mistakes or being wrong
Example
Even experts are fallible and can make errors.
C2 noun /ˌpænəˈdʒɪrɪk/

panegyric

Meaning
a formal speech or piece of writing in praise of someone or something
Example
The author wrote a panegyric on the bravery of the soldiers.
C2 noun /əbˈhɒrəns/

abhorrence

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

Gruel

Meaning
a thin liquid food of oatmeal or another meal boiled in milk or water
Example
The sick patient could only eat gruel.
C2 noun /ˈmoʊlə ˈkɑrplɪt/

Mola carplet

Meaning
a small freshwater fish of the carp family, commonly found in South Asian rivers and ponds
Example
The mola carplet is a popular small fish used in Bengali cuisine.
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 /ˈræŋɡlər/

wrangler

Meaning
a person who argues noisily; or someone who takes care of livestock on a ranch
Example
The cowboy worked as a wrangler on the ranch.
C2 noun /ˈlɔːndrəs/

laundress

Meaning
A woman whose job is washing clothes and linens.
Example
The laundress delivered the freshly cleaned clothes to the household.
C2 verb /drɔːl/

drawl

Meaning
to speak in a slow, lazy way with prolonged vowel sounds
Example
He tends to drawl when he is tired.
C2 noun /ˈtaɪroʊ/

tyro

Meaning
A beginner or novice in a field or activity.
Example
As a tyro in programming, she needed constant guidance.
C2 adjective /ɑːlˈfæktəri/

olfactory

Meaning
Relating to the sense of smell.
Example
The perfume activated her olfactory nerves immediately.
C2 adjective /ˌʌnpriːpəˈzɛsɪŋ/

unprepossessing

Meaning
not attractive or appealing in appearance
Example
Despite his unprepossessing looks, he was very kind and intelligent.
C2 noun /ˌfəʊ.təʊ.sen.sɪˈtɪv.ɪ.ti/

photosensitivity

Meaning
Sensitivity to light, especially abnormal sensitivity that may cause discomfort or damage.
Example
Overrubbing can increase photosensitivity.
C2 noun /ˌɪmprɪˈkeɪʃən/

imprecation

Meaning
A spoken curse or expression of strong condemnation.
Example
The angry crowd hurled imprecations at the corrupt official.
C2 adjective /ˈflæs.ɪd/

Flaccid

Meaning
soft and limp; lacking firmness; drooping
Example
The plant's leaves became flaccid after days without water.
C2 adjective /ˈwiːk niːd/

weak-kneed

Meaning
Lacking determination or courage; easily frightened or yielding.
Example
The leader was criticized for being weak-kneed in the face of opposition.
C2 adjective /əˈprəʊ.bri.əs/

opprobrious

Meaning
Expressing strong criticism or scorn.
Example
He made opprobrious remarks about his opponent.
C2 noun /ˌpɛdəˈɡɒdʒɪks/

pedagogics

Meaning
the science or art of teaching
Example
He studied pedagogics to become a better teacher.
C2 verb /ˈsɪmpər/

simper

Meaning
to smile in a silly, self-conscious, or affected way
Example
She simpered at his compliment, clearly embarrassed.
C2 adjective /ˈrɛkriənt/

recreant

Meaning
cowardly or unfaithful to duty
Example
The recreant soldier abandoned his post in fear.
C2 adjective /kənˌtɛmpəˈreɪniəs/

contemporaneous

Meaning
existing, happening, or occurring at the same time
Example
The two artists were contemporaneous and often influenced each other.
C2 adjective /ˈspɔːrtɪv/

sportive

Meaning
Playful, lively, or full of fun.
Example
The children were in a sportive mood during the picnic.
C2 noun ˈɔː.tɑː.ki

autarky

Meaning
Economic independence or self-sufficiency; a policy of establishing a self-sufficient national economy.
Example
Some nations aim for autarky to reduce reliance on imports.
C2 noun /ˈnɛkrəˌmænsər/

necromancer

Meaning
a person who practices necromancy; a wizard or magician who claims to communicate with the dead
Example
The villagers feared the old necromancer who lived at the edge of the forest.
C2 adjective /dɪˈkrɛpɪt/

decrepit

Meaning
worn out or weakened by age or neglect
Example
The decrepit old house was on the verge of collapse.
C2 noun /oʊˈtɜːr/

hauteur

Meaning
disdainful pride; arrogance
Example
His hauteur made it difficult for others to approach him.
C2 adjective/verb /ɪnˈkɑːrneɪt/

incarnate

Meaning
to embody or represent in human form; in flesh
Example
She is kindness incarnate.
C2 noun /ˈfaɪləm/

phylum

Meaning
a primary category in the biological classification of organisms, above class and below kingdom
Example
Humans belong to the phylum Chordata.
C2 noun /rɪˈpʌɡ.nəns/

repugnance

Meaning
intense disgust or strong aversion towards something
Example
She felt deep repugnance at the cruelty of the act.
C2 noun /reɪθ/

wraith

Meaning
A ghost or ghostlike image of someone, especially seen shortly before or after their death.
Example
A wraith appeared in the fog near the old castle.
C2 adjective /ˈlaʊtɪʃ/

loutish

Meaning
Clumsy, rude, or aggressive in behavior.
Example
His loutish remarks offended everyone at the meeting.
C2 noun /foʊˈtɑːmɪtri/

photometry

Meaning
the science of measuring visible light in terms of its perceived brightness to human eyes
Example
Photometry helps in designing efficient lighting systems.
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 adjective /ˈblaɪðsəm/

blithesome

Meaning
cheerful, carefree, and full of joy
Example
She entered the room with a blithesome smile that lifted everyone's spirits.
C2 noun /ˌpraɪvəˈtɪə/

privateer

Meaning
A privately owned armed ship authorized by a government to attack enemy ships during war.
Example
The privateer captured several enemy vessels during the conflict.
C2 verb /ˈbændi/

bandy

Meaning
To pass (words, ideas, or gossip) back and forth in a casual or argumentative way.
Example
They bandied jokes across the table.
C2 noun /ˌhæŋ.ər ˈɒn/

hanger-on

Meaning
a person who spends time with a powerful or famous person to gain benefits.
Example
The celebrity was always surrounded by hangers-on.
C2 noun /bel ˈæp.əl/

Bell apple

Meaning
a tropical fruit with a crisp texture and sweet taste, scientifically known as Syzygium malaccense
Example
The bell apple tree produces beautiful red fruits that are popular in tropical regions.
C2 noun /ˈhɪlək/

hillock

Meaning
A small hill or mound.
Example
The children climbed up the grassy hillock to watch the sunset.
C2 noun /ˈkrɪsəndəm/

christendom

Meaning
the worldwide body or community of Christians
Example
The news spread quickly across Christendom.
C2 noun /ɪmˈpɒs.tʃər/

Imposture

Meaning
the practice of deceiving others by pretending to be someone else; fraudulent deception
Example
The elaborate imposture lasted for months before investigators uncovered the truth.
C2 noun /ɪmˈpjuːnɪti/

impunity

Meaning
freedom from punishment or harmful consequences for an action
Example
The dictator ruled with impunity, ignoring international laws.
C2 noun /əbˈstɛtrɪks/

obstetrics

Meaning
The branch of medicine dealing with childbirth and care of women giving birth.
Example
She is studying obstetrics to become a specialist in childbirth.
C2 adjective /aɪˈsɒ.krə.nəs/

isochronous

Meaning
Occurring at equal time intervals; in unison or synchrony.
Example
The pendulum swings are isochronous, repeating at equal intervals.
C2 adjective /ˈvɛdʒɪtəl/

vegetal

Meaning
relating to or consisting of plants or vegetation
Example
The soup had a distinct vegetal flavor.
C2 noun /maɪˈkrɒmɪtər/

micrometer

Meaning
A device used for measuring small distances with great accuracy.
Example
The engineer used a micrometer to measure the thickness of the wire.
C2 adjective /ˈdʌlsɪt/

dulcet

Meaning
sweet and soothing (often used ironically)
Example
She was enchanted by his dulcet voice.
C2 adjective /ˈprɑːflɪɡət/

profligate

Meaning
recklessly extravagant or wasteful in resources
Example
The king was known for his profligate lifestyle.
C2 adjective /sæŋˈɡwɪniəs/

sanguineous

Meaning
Relating to blood; bloody.
Example
The surgeon examined the sanguineous discharge from the wound.
C2 noun /ˈrɪvjʊlət/

rivulet

Meaning
a small stream of water; a tiny brook
Example
A rivulet ran down the hillside after the rain.
C2 noun /ˌɛksɪˈkreɪʃən/

execration

Meaning
An act of cursing or denouncing someone or something with hatred.
Example
The dictator’s name was spoken with execration after his fall.
C2 noun/adjective /rɪˈmɒnstrənt/

remonstrant

Meaning
A person who makes a forceful protest (noun); protesting or objecting (adjective).
Example
He was a remonstrant voice in the assembly.
C2 adjective /pɔːrˈtɛntəs/

portentous

Meaning
Giving a sign or warning that something, often bad or serious, is going to happen; or overly solemn and pompous.
Example
His portentous tone made everyone nervous about the news.
C2 adjective /rɪˈkʌmbənt/

recumbent

Meaning
lying down or in a resting position
Example
He was found recumbent on the sofa after a long day.
C2 adjective /ˈoʊ.vɔɪd/

ovoid

Meaning
egg-shaped; resembling an oval or ellipse
Example
The artist painted an ovoid shape in the center of the canvas.
C2 adjective /ʌnˈɡeɪnli/

ungainly

Meaning
Awkward, clumsy, or lacking grace in movement or appearance.
Example
The tall boy moved in an ungainly manner.
C2 adjective /ˌrɒŋˈhɛd.ɪd/

wrongheaded

Meaning
Having or showing bad judgment or stubbornly holding to wrong ideas.
Example
The policy was considered wrongheaded and harmful.
C2 verb /ɪkˈstɛmpəraɪz/

extemporize

Meaning
To speak or perform without preparation; improvise.
Example
The actor had to extemporize when he forgot his lines.
C2 noun /əˈkwɪtəns/

acquittance

Meaning
a written receipt acknowledging payment or discharge of a debt
Example
He demanded an acquittance after paying the loan.
C2 adjective /baɪˈkæmərəl/

bicameral

Meaning
Having two branches or chambers, especially in a legislature.
Example
The United States has a bicameral legislature consisting of the Senate and the House of Representatives.
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 /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 adjective /ˈwɜːkmənˌlaɪk/

workmanlike

Meaning
Showing efficient, competent, and practical skill, but without flair or creativity.
Example
The carpenter delivered a workmanlike performance on the project.
C2 verb /ˈnɪtˌpɪk/

nitpick

Meaning
To find and criticize small or unimportant faults in someone or something.
Example
She tends to nitpick about every little detail.
C2 noun /ɑːmz/

alms

Meaning
Money, food, or goods given to the poor as charity.
Example
The monk distributed alms to the needy villagers.
C2 noun /ˌɪnədˈvɜːrtəns/

inadvertence

Meaning
Failure to pay attention; carelessness.
Example
The error happened through sheer inadvertence.
C2 adjective /ˌsuː.pər.ɪˈrɑː.ɡə.tɔːr.i/

supererogatory

Meaning
Going beyond what is required or expected; more than necessary.
Example
His donation was supererogatory, far beyond what anyone had asked for.
C2 verb /bɪˈsiːtʃ/

beseech

Meaning
To ask someone urgently and fervently to do something; to beg.
Example
He beseeched the judge for mercy.
C2 noun /pəˈlɛmɪks/

polemics

Meaning
the art or practice of engaging in controversial debate or dispute
Example
The conference was full of polemics on economic reforms.
C2 verb /bɪˈwɪtʃ/

bewitch

Meaning
to enchant or fascinate someone as if by magic
Example
The dancer's performance bewitched the audience.
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 verb ɪɡˈzɔːrt

exhort

Meaning
To strongly encourage or urge someone to do something.
Example
The teacher exhorted students to work hard for exams.
C2 noun /ˈɡæli/

galley

Meaning
A low, flat ship used in ancient times, often with sails and oars; also, a kitchen on a ship or aircraft.
Example
The galley was filled with the smell of freshly cooked food.
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 adjective /ɒmˈnɪʃ.ənt/

Omniscient

Meaning
having complete knowledge; all-knowing
Example
The narrator in the novel appears to be omniscient, knowing every character's thoughts.
C2 adjective /dʒoʊˈkoʊs/

jocose

Meaning
playful or humorous in speech or behavior
Example
The professor’s jocose remarks kept the class entertained.
C2 adjective /ˌdaɪəˈtɒmɪk/

diatomic

Meaning
Consisting of two atoms.
Example
Oxygen is a diatomic molecule.
C2 noun /ˌdʒʊərɪsˈpruːdəns/

jurisprudence

Meaning
The theory, philosophy, or science of law.
Example
She is a professor of jurisprudence at the university.
C2 verb /ˈtʃæfɪŋ/

chaffing

Meaning
Teasing or joking in a lighthearted way.
Example
They were chaffing each other during lunch.