gradation
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C2 noun /ɡreɪˈdeɪʃən/

gradation

Meaning
A gradual change from one stage, tone, or degree to another.
Example
The artist used subtle gradation of colors in her painting.
B2 noun /bækˈtɪəriəm/

bacterium

Meaning
A single microscopic organism belonging to the group of bacteria.
Example
The doctor explained that a single bacterium can multiply rapidly under the right conditions.
C1 noun /prəˈvaɪzoʊ/

proviso

Meaning
a condition or stipulation attached to an agreement
Example
He accepted the job offer with the proviso that he could work remotely twice a week.
A1 noun /waɪf/

wife

Meaning
a woman who is married to someone
Example
She is the wife of the famous author.
B2 adverb /pəˈtɛnʃəli/

potentially

Meaning
with the possibility of becoming something in the future
Example
This project is potentially a huge success.
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.
B2 noun səˌsteɪ.nəˈbɪl.ɪ.ti

sustainability

Meaning
The ability to be maintained at a certain rate or level; the avoidance of the depletion of natural resources in order to maintain ecological balance.
Example
Sustainability ensures long-term environmental health.
B2 adjective /ˈfeɪvərəbl/

favourable

Meaning
Expressing approval, support, or positivity; advantageous or beneficial
Example
The weather conditions were favourable for the outdoor event.
B2 noun /iːz/

Ease

Meaning
absence of difficulty or effort; comfort and relaxation
Example
After years of practice, she played the piano with great ease.
C2 adjective /ˌfæntæzməˈɡɒrɪkəl/

phantasmagorical

Meaning
Having a fantastic, dreamlike, or surreal appearance, often shifting or illusory.
Example
The movie created a phantasmagorical vision of another world.
B2 adjective /rɪˈliːvd/

relieved

Meaning
feeling happy and less worried after something stressful has been removed or resolved
Example
She felt relieved after hearing the good news.
C2 adjective /ɪˈfʌldʒənt/

effulgent

Meaning
Shining brilliantly; radiant.
Example
Her effulgent smile brightened everyone's mood.
B1 noun pɑːˈtɪs.ɪ.pənts

participants

Meaning
People who take part in something; those involved in an activity or event.
Example
Participants will enjoy breathtaking views.
B2 verb /dɪˈstrækt/

distract

Meaning
to take someone's attention away from what they are doing or focusing on
Example
The loud noise distracted her during the exam.
C1 adjective /ˈsɪm.jʊ.leɪ.tɪd/

simulated

Meaning
Artificially created to look real but not actually real.
Example
The pilot trained in a simulated flight environment.
B2 verb ˈjuːnɪfaɪ

unify

Meaning
To make or become united, uniform, or whole; to bring together into a single unit.
Example
Adolescents unify with peers for social acceptance.
B2 adjective, verb /əbˈskjʊr/

obscure

Meaning
Not clearly expressed or understood; to make something difficult to see or understand.
Example
The meaning of the poem was obscure to most readers.
C2 adjective /loʊˈkweɪʃəs/

loquacious

Meaning
tending to talk a great deal; very talkative
Example
The loquacious child entertained everyone with endless stories.
C1 noun /ˈlaɪtʃi/

Litchi

Meaning
a small oval pink-red tropical fruit with white translucent flesh and sweet taste
Example
The litchi has a rough pink shell that you peel to eat the sweet white fruit inside.
B1 noun sɪˈkjʊə.rɪ.ti

security

Meaning
The state of being free from danger, threat, or loss.
Example
Food security is essential for human survival.
C2 verb /ˈɑːblɪˌɡeɪt/

obligate

Meaning
to bind legally or morally; to compel someone to do something
Example
The contract obligates the company to provide timely service.
B2 noun /ˈkɒm.ɪt/

Comet

Meaning
a celestial object consisting of ice and dust that develops a tail when approaching the sun
Example
Halley's Comet appears in the sky every 76 years.
B2 adjective /mæɡˈnɛtɪk/

magnetic

Meaning
having the power to attract metal objects or to attract people or things in a strong way
Example
The magnetic field of the Earth protects us from harmful solar radiation.
C2 adjective /dʒərˈmeɪn/

germane

Meaning
Relevant and appropriate to the subject being considered.
Example
Her comments were not germane to the discussion.
C2 adjective /ˈmeɪndʒi/

mangy

Meaning
in poor condition, shabby, dirty, or affected by mange
Example
The stray dog looked mangy and weak.
C1 adjective /nɪˈɡlɛktfʊl/

neglectful

Meaning
Failing to give proper care or attention.
Example
The neglectful parent left the child alone for hours.
A1 noun /mɑːrtʃ/

March

Meaning
An act of walking in a regular measured tread; a protest demonstration
Example
The soldiers performed a ceremonial march in front of the palace.
A1 noun /reɪn/

Rain

Meaning
water that falls from clouds in small drops
Example
The heavy rain forced us to stay indoors.
C1 noun/verb /ˈsuː.tʃər/

suture

Meaning
A stitch or row of stitches holding together the edges of a wound or surgical incision.
Example
The doctor used a suture to close the wound.
C1 noun /ˈledʒ.ər/

Ledger

Meaning
a book or other collection of financial accounts of a particular type
Example
The accountant updated the company ledger daily.
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.
B1 noun /ˈmɪlk.mæn/

Milkman

Meaning
a person who delivers milk to homes or businesses
Example
The milkman delivers fresh milk to our house every morning.
A1 noun /ˈweɪtər/

waiter

Meaning
a person whose job is to serve food and drinks to customers in a restaurant or café
Example
The waiter brought the menu and took our order politely.
B2 adverb /fɔːrθ/

forth

Meaning
forward in place, time, or order
Example
The leader stepped forth to address the crowd.
C1 adverb /ˌɪn.ədˈvɜːr.tənt.li/

Inadvertently

Meaning
without being aware of what you are doing; unintentionally; by mistake
Example
She inadvertently deleted the important file while cleaning her computer.
C1 noun, verb /raʊt/

rout

Meaning
A decisive defeat; to defeat completely.
Example
The army routed the enemy forces in the battle.
B2 verb /kənˈfes/

confess

Meaning
to admit guilt or wrongdoing; to acknowledge
Example
He confessed his mistake to his teacher.
C2 noun /ˈɒnwiː/ or /ˈɑːnwiː/

ennui

Meaning
A feeling of boredom, listlessness, or dissatisfaction arising from lack of excitement.
Example
After weeks of doing nothing, he sank into a deep sense of ennui.
C2 adjective /prɪˈsɛnʃənt/

presentient

Meaning
Having a feeling or sense of something about to happen; predictive.
Example
She was presentient of the coming disaster.
A2 noun /ˈstrɔːbəri/

Strawberry

Meaning
a small red heart-shaped fruit with tiny seeds on the surface and sweet taste
Example
I love eating fresh strawberries with cream during summer.
C1 adjective ˌɪn.krəˈmen.təl

incremental

Meaning
Relating to or denoting an increase or addition, especially one of a series on a fixed scale; proceeding in small stages.
Example
Incremental changes ensure sustainability.
B2 noun /ˌprɒp.əˈɡæn.də/

Propaganda

Meaning
information spread to promote a particular political cause or point of view
Example
The government used propaganda to influence public opinion during the war.
B2 noun/verb /flɑːk/

flock

Meaning
a group of birds or animals; to gather or move in a crowd
Example
Tourists flocked to the beach during summer.
A2 adjective /ˈnɔːti/

naughty

Meaning
Disobedient or mischievous, often in a playful or mildly bad way.
Example
The naughty child drew on the walls with crayons.
B2 noun, adjective /ˈsoʊʃəlɪst/

socialist

Meaning
a person who advocates for socialism; relating to socialism
Example
He is a well-known socialist writer.
B2 noun /ˈen.tə.praɪz/

Enterprise

Meaning
a project or undertaking, especially a bold or complex one
Example
The space exploration enterprise required years of planning and preparation.
C1 noun dɪˌtɪə.ri.əˈreɪ.ʃən

deterioration

Meaning
The process of becoming progressively worse; decline in quality, condition, or strength.
Example
Poor maintenance leads to material deterioration.
B1 noun /tʃɪl/

Chill

Meaning
an unpleasant feeling of coldness; a feeling of fear or anxiety; to relax
Example
There was a chill in the air as autumn approached.
B2 adjective /ˌdɪp.ləˈmæt.ɪk/

Diplomatic

Meaning
relating to diplomacy; tactful; skilled in managing relationships
Example
She gave a diplomatic answer to avoid offending anyone.
B2 noun /ɡriːn ˈtʃɪl.i/

Green Chili

Meaning
unripe chili pepper that is green in color and has a spicy taste
Example
She added chopped green chili to the salad for extra heat.
C1 noun /sɪˈdʌk.ʃən/

Seduction

Meaning
the action of seducing someone; temptation to do something wrong
Example
He fell victim to the seduction of easy money.
B2 verb /dɪˈstɔːrt/

distort

Meaning
to twist or change the shape, appearance, or meaning of something so it is not true or accurate
Example
The mirror distorted her reflection.
C1 adjective /ʃrɪl/

shrill

Meaning
High-pitched and piercing in sound.
Example
The shrill whistle startled everyone in the room.
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.
B2 noun /ˈbiː.təl/

Beetle

Meaning
a hard-bodied insect with wing covers
Example
The black beetle scurried across the garden path.
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 adjective /rɪˈfrɪndʒənt/

refringent

Meaning
Capable of refracting light or other waves.
Example
The refringent properties of the crystal bent the light into a spectrum.
C1 noun /ˌpɜː.mɪˈæbɪlɪti/

permeability

Meaning
The quality or state of being permeable; allowing liquids or gases to pass through.
Example
The permeability of the soil affects water retention.
C1 adjective /ˈɔː.də.bəl/

Audible

Meaning
able to be heard; loud enough to hear
Example
The speaker's voice was barely audible from the back of the large hall.
B1 noun /wiːt/

wheat

Meaning
a cereal plant whose grain is used to make flour for bread and other foods
Example
Farmers harvested the wheat in early summer.
C1 verb /ˈθiːəraɪz/

theorize

Meaning
To form a theory or set of ideas to explain something.
Example
Scientists often theorize about the origins of the universe.
B2 noun ˈlɛvərɪdʒ

leverage

Meaning
The use of borrowed capital or resources to increase the potential return of an investment; using something to maximum advantage.
Example
Leverage amplifies your efforts and scales your work.
C2 adjective /ˌeθ.noʊˈsen.trɪk/

ethnocentric

Meaning
evaluating other cultures according to the standards of one's own culture
Example
His ethnocentric attitude made it hard for him to appreciate foreign traditions.
A1 noun /ˈwiːkˌɛnd/

weekend

Meaning
the end of the week, typically regarded as Saturday and Sunday
Example
They are planning a trip for the weekend.
C1 noun /ˌkɒnvəˈlɛsns/

convalescence

Meaning
the period of time spent recovering from an illness or medical treatment
Example
His convalescence lasted for almost two months after the accident.
A1 noun /ˈtiːˈviː/

tv

Meaning
a device used to receive television broadcasts
Example
I watch my favorite shows on TV every evening.
C2 noun /dɜːrdʒ/

dirge

Meaning
A mournful song, piece of music, or poem expressing grief, often for the dead.
Example
The choir sang a solemn dirge at the funeral.
C2 noun /ˌbuː.ɡənˈvɪl.i.ə/

Bougainvillea

Meaning
a tropical climbing plant with colorful bracts surrounding small flowers
Example
The bougainvillea climbing over the garden wall creates a beautiful purple display.
C1 noun ˈsʌfrɪdʒ

suffrage

Meaning
The right to vote in political elections; the principle of political representation.
Example
Universal suffrage was a key demand.
C2 adjective /eɪˈsɛptɪk/

aseptic

Meaning
Free from contamination caused by harmful microorganisms; sterile.
Example
Surgeons must work in an aseptic environment to prevent infection.
C1 adjective /ˈtɑːrdi/

tardy

Meaning
Delayed; arriving or happening late.
Example
The student received a warning for being tardy to class.
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.
C2 verb /rɔɪl/

roil

Meaning
to make a liquid muddy or disturbed; to cause agitation or disorder
Example
The constant protests roiled the city streets.
C1 noun səˌsɛp.təˈbɪl.ə.ti

susceptibility

Meaning
The quality of being likely to be influenced or harmed by a particular thing; vulnerability.
Example
High susceptibility to infections requires extra care.
B2 adverb /ˌðɛərˈbaɪ/

Thereby

Meaning
as a result of that; by that means
Example
He worked hard and thereby achieved success.
A2 noun /ˈkrɒk.ə.daɪl/

Crocodile

Meaning
a large reptile with a long mouth and sharp teeth that lives in rivers and lakes in hot countries
Example
The crocodile slowly moved through the murky water.
B2 adjective /ˌsaɪkəˈlɒdʒɪkəl/

psychological

Meaning
relating to the mind or mental processes.
Example
She studied the psychological effects of trauma on children.
C1 noun /ɪmˌpɒsəˈbɪlɪti/

impossibility

Meaning
the state or fact of being impossible; something that cannot be done or achieved
Example
Finishing the project in one day was an impossibility.
C2 noun /prɪˈfɜːrmənt/

preferment

Meaning
promotion or advancement in rank, position, or office
Example
He hoped for preferment in the government office.
C2 noun /ˈpælɪˌnoʊd/

palinode

Meaning
a poem or statement in which the writer retracts something said in an earlier work
Example
The poet wrote a palinode to apologize for his earlier harsh words.
A1 noun /ˈʌŋkəl/

uncle

Meaning
the brother of one's father or mother
Example
My uncle is visiting us next week.
C2 noun /ˌdɪfəˈrɛnʃə/

differentia

Meaning
A distinguishing characteristic that sets one thing apart from another.
Example
The differentia of humans is their ability to reason abstractly.
C1 adjective /ˈnɒm.ɪ.nəl/

Nominal

Meaning
very small in size or amount; existing in name only
Example
He paid only a nominal fee for the membership since he was a student.
B2 noun /ˈpæm.flət/

pamphlet

Meaning
a small booklet or brochure containing information or arguments about a subject
Example
The health department distributed a pamphlet about nutrition.
C1 verb /ˈkʌvət/

covet

Meaning
to desire something belonging to someone else
Example
He coveted his neighbor's new car.
B2 adverb /ʌnˈkaɪndli/

unkindly

Meaning
in a cruel, harsh, or unsympathetic manner
Example
She spoke unkindly about her colleague during the meeting.
C2 adverb /ˌɪnsəʊˈmʌtʃ/

insomuch

Meaning
to such an extent
Example
He was insomuch tired that he could hardly stand.
C2 adjective /əˈrækjələr/

oracular

Meaning
Resembling an oracle; giving wise, mysterious, or prophetic statements
Example
Her oracular words left the audience deep in thought.
C1 verb /ədˈmɒnɪʃ/

admonish

Meaning
to warn or reprimand someone firmly; to advise or urge earnestly
Example
The teacher admonished the students for being late.
C1 noun /ˈleɪ.tən.si/

latency

Meaning
The delay in processing signals or data.
Example
High latency in online gaming can cause lagging issues.
C2 adjective /ˌdaɪəˈtɒmɪk/

diatomic

Meaning
Consisting of two atoms.
Example
Oxygen is a diatomic molecule.
C2 verb /trænsˈfɪɡjʊər/

transfigure

Meaning
To transform the outward appearance or form, often in a way that elevates or glorifies.
Example
The artist managed to transfigure simple clay into a beautiful sculpture.
B2 noun ˈlɛɡ.ə.si

legacy

Meaning
An amount of money or property left to someone in a will; something left or handed down by a predecessor.
Example
His contributions left a lasting legacy in the industry.
C2 verb /vɪˈtjuːpəreɪt/

vituperate

Meaning
To criticize harshly or abuse verbally.
Example
The politician was quick to vituperate his opponents during the debate.
C2 noun /ɪkˌspɒstjʊˈleɪʃən/

expostulation

Meaning
the act of expressing protest or disagreement
Example
His expostulation against the unfair rules was ignored.
B1 noun /ˈvɔɪ.ɪdʒ/

Voyage

Meaning
a long journey involving travel by sea or in space
Example
The ship's voyage across the Atlantic took two weeks.
C1 noun /dɪˈkɔː.rəm/

Decorum

Meaning
behavior in keeping with good taste and propriety; dignified and appropriate conduct
Example
The diplomat maintained perfect decorum throughout the heated negotiations.
C2 adjective /ɪˈfɛmɪnət/

effeminate

Meaning
Having traits, tastes, or habits traditionally considered feminine, often used negatively for men.
Example
The critics described him as effeminate due to his gentle manner.
C2 adjective /ˈpɛndjʊləs/

pendulous

Meaning
hanging down loosely; drooping
Example
The pendulous fruit weighed down the branch.
B2 noun /ˌsɪmjuˈleɪʃən/

simulation

Meaning
the imitation of a situation or process
Example
The simulation helped the students understand the complex theory.
B1 noun /lɔk/

Lock

Meaning
a mechanism for keeping a door, lid, etc., fastened, typically operated only by a key of a particular form
Example
Make sure you lock the door before leaving.
B2 noun ˈruθləs ˌkɑmpəˈtɪʃən

ruthless competition

Meaning
Fierce and merciless rivalry or contest, without pity or compassion.
Example
Ruthless competition for power leads to societal issues.
A1 pronoun, noun, adjective /wʌn/

one

Meaning
the number equivalent to the sum of zero and one; a single person or thing
Example
Only one student answered the question.
B2 adverb /pəˈlɪtɪkəli/

politically

Meaning
in a way that relates to politics or government
Example
The country is politically divided between two major parties.
B2 noun /fɪst/

Fist

Meaning
a person's hand when the fingers are bent in toward the palm and held there tightly
Example
He raised his fist in victory after winning the championship match.
C2 adjective /kənˈdʌktəbl̩/

conductible

Meaning
capable of being conducted, especially electricity or heat
Example
Copper is highly conductible to electricity.
B1 noun /ɪnˌvɛs.tɪˈɡeɪ.ʃən/

investigation

Meaning
the process of inquiring into or examining something carefully to find the truth
Example
The investigation revealed new evidence about the fraud.
C1 noun /ˈsiːskeɪp/

seascape

Meaning
A view or painting of the sea.
Example
The artist painted a beautiful seascape at sunset.
C1 noun koʊˈhisɪv ˈjunɪts

cohesive units

Meaning
Groups or organizations that work together as unified wholes, with members closely bound together.
Example
Early humans formed cohesive units for survival.
C2 noun /ˈmeɪsə/

mesa

Meaning
An isolated flat-topped hill with steep sides, found in arid regions.
Example
The hikers stopped to admire the mesa rising above the desert floor.
B2 noun /kɒk/

Cock

Meaning
an adult male chicken
Example
The cock crowed loudly at dawn to wake everyone up.
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 /kəˈdʒoʊləri/

cajolery

Meaning
Flattering or coaxing talk intended to persuade someone.
Example
Through cajolery, he convinced his boss to grant him a raise.
A2 adjective /taɪt/

tight

Meaning
firmly held in place, not loose or slack
Example
The knot was too tight to untie.
C2 verb /ˌfɔːrˈrʌn/

forerun

Meaning
To go before; to precede in time, place, or action.
Example
Dark clouds often forerun a storm.
C2 adjective /ˌseɪpiˈɛnʃəl/

sapiential

Meaning
Relating to wisdom or knowledge, often in a religious or philosophical sense.
Example
The monk shared sapiential teachings with his students.
C2 noun /ˌluːkjʊˈbreɪʃən/

lucubration

Meaning
study or meditation, especially at night
Example
His novel was the result of long lucubration.
B1 noun /ˈɑːrtwɜːrk/

artwork

Meaning
a piece of art, such as a painting, sculpture, or drawing
Example
The gallery displayed an impressive artwork by a local artist.
C1 adjective /maɪˈkroʊ.bi.əl/

microbial

Meaning
Related to bacteria, fungi, and other microscopic organisms.
Example
Microbial activity in the soil improves fertility.
B2 adjective /ʌnəˈfreɪd/

unafraid

Meaning
Not feeling fear; brave or courageous
Example
She walked into the dark room, unafraid of what might be inside.
C2 adjective /dɪˈklæməˌtɔri/

declamatory

Meaning
speaking in a loud, rhetorical, or dramatic way
Example
The politician’s declamatory style impressed some but irritated others.