invalidate
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C1 verb /ɪnˈvælɪdeɪt/

invalidate

Meaning
To make something not valid or legally acceptable.
Example
The new evidence may invalidate the previous ruling.
C2 noun /ˌiː.mɛnˈdeɪ.ʃən/

emendation

Meaning
a correction or improvement made to a text
Example
The article required several emendations before it was ready for print.
B1 noun /ˈɪnstəns/

instance

Meaning
An example or single occurrence of something.
Example
This is just one instance of his generosity.
C2 noun /ˈproʊtoʊˌplæzəm/

protoplasm

Meaning
The living substance inside a cell, including the cytoplasm and nucleus.
Example
Scientists observed the movement of protoplasm under the microscope.
C1 noun /ˈwiː.vər bɜːd/

Weaver bird

Meaning
a small bird that builds elaborate woven nests from grass and twigs
Example
The weaver bird skillfully constructs its intricate nest.
B2 noun /ˈwɪlɪŋnəs/

willingness

Meaning
the quality of being prepared or ready to do something
Example
Her willingness to help others made her very popular.
C1 verb /ˌdiːˈbʌŋk/

debunk

Meaning
Expose the falseness or hollowness of (a myth, idea, or belief).
Example
Scientists debunked the myth that vaccines cause autism.
B2 verb /ˈtɛmpər/

temper

Meaning
to moderate, soften, or tone down something; also to strengthen by heat treatment (as in metal).
Example
She tried to temper her criticism with kindness.
C1 adjective /ˌʌnəˈteɪnəbl/

unattainable

Meaning
impossible to achieve, reach, or accomplish
Example
For many, becoming a professional athlete remains an unattainable dream.
B2 adjective /məˈtjʊr/

mature

Meaning
fully developed or grown, especially emotionally or intellectually
Example
She has become a mature and confident leader.
C1 noun /ˌætəˈʃeɪ/

attache

Meaning
A person officially assigned to the staff of a diplomatic mission, often with a specific area of responsibility.
Example
The cultural attache organized an art exhibition in the embassy.
A1 pronoun /aʊər/

our

Meaning
belonging to or associated with the speaker and one or more other people
Example
This is our house.
C2 noun /ˌsuːdəʊəˈpɒsəl/

pseudapostle

Meaning
a false or pretended apostle
Example
The preacher was condemned as a pseudapostle.
B2 noun /ˈsaɪd.laɪn/

sideline

Meaning
An activity done in addition to one's main job or area of work.
Example
The sideline discussions led to mutual understanding.
A2 verb /bit/

beat

Meaning
to strike repeatedly; to defeat; to pulsate rhythmically
Example
Our team will beat theirs in the final match.
C1 noun ˌræʃ.ən.əl.ɪˈzeɪ.ʃən

rationalization

Meaning
The practice of finding reasons for behavior or actions that are not the real reasons.
Example
His rationalization of the mistake was not convincing.
C1 adjective /kənˈdʒiːniəl/

congenial

Meaning
pleasant and friendly because of having similar interests or qualities
Example
They found the café a congenial place to meet and talk.
C1 adjective /ˈnɔːʃəs/

nauseous

Meaning
feeling like you are about to vomit; causing a feeling of sickness
Example
The smell of rotten food made her feel nauseous.
B2 verb /θraɪv/

thrive

Meaning
to grow, develop, or be successful
Example
Small businesses can thrive with proper support.
C1 noun /ˈiːɡoʊˌtɪzəm/

egotism

Meaning
The practice of talking and thinking about oneself excessively because of an inflated sense of self-importance.
Example
His constant boasting revealed his egotism.
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.
C1 noun /ˈsɒnɪt/

sonnet

Meaning
A poem of 14 lines using formal rhyme schemes, often about love.
Example
Shakespeare wrote many famous sonnets about love and beauty.
A1 noun /jɪə/

year

Meaning
a period of 365 or 366 days, divided into 12 months
Example
This year, we are planning a trip to the mountains.
B1 noun /ˈnɜːrsɪŋ/

nursing

Meaning
the profession or practice of caring for the sick or injured
Example
She is studying nursing to become a healthcare professional.
A2 verb /əˈpɒlədʒaɪz/

apologize

Meaning
to say sorry for something wrong you have done
Example
He apologized for being late to the meeting.
B1 noun ˈbæriə(r)

barrier

Meaning
A fence or other obstacle that prevents movement or access.
Example
The barrier prevented entry.
B2 adjective /ˈɛəri/

airy

Meaning
Spacious and well-ventilated; light and breezy.
Example
The new apartment is bright and airy.
C1 adjective /ˈkoʊvərt/

covert

Meaning
hidden, secret, or not openly acknowledged
Example
The spy conducted a covert operation behind enemy lines.
C2 adjective ˌmɛɡəˈlɪθɪk

megalithic

Meaning
Relating to or denoting prehistoric monuments made of or containing large stones.
Example
The megalithic structures in ancient civilizations are fascinating.
B2 adjective /ˈrʌs.ti/

Rusty

Meaning
affected by rust; out of practice; impaired by lack of recent practice
Example
My piano skills are rusty after not playing for years.
C2 adjective /səˈprɛsəbl̩/

suppressible

Meaning
capable of being restrained, controlled, or prevented
Example
The symptoms of the disease are suppressible with medication.
B2 noun /ˈhɑːr.bər/

Harbour

Meaning
a place on the coast where vessels may find shelter; a place of safety or refuge
Example
The fishing boats returned safely to the harbour before the storm hit the coastline.
C1 /ˈɡrævəl/

gravel

Meaning
Small stones and pebbles, often mixed with sand, used for paths, roads, and construction.
Example
The driveway was covered with gravel.
A1 adjective /fjuː/

few

Meaning
A small number of; not many.
Example
Only a few students attended the class.
C2 verb /ˌdɪskəmˈpoʊz/

discompose

Meaning
To disturb the order or calmness of something or someone.
Example
The unexpected question seemed to discompose her.
C2 verb /ɛmˈbɔs/

emboss

Meaning
to decorate a surface with a raised design or pattern
Example
The invitation card was embossed with golden letters.
C1 verb /ˈʌndərkʌt/

undercut

Meaning
to sell at a lower price than a competitor; to weaken or undermine something
Example
The company tried to undercut its rivals by offering lower prices.
A2 noun /ɡɑːrd/

Guard

Meaning
a person who keeps watch, especially a soldier or police officer; a device worn or fitted to prevent injury
Example
The security guard checked everyone's identification before allowing entry to the building.
C2 verb /ˈpælpɪˌteɪt/

palpitate

Meaning
to beat rapidly and strongly, often because of fear, excitement, or illness
Example
Her heart began to palpitate with fear.
B2 adverb /ˈdʌbli/

doubly

Meaning
in a twofold manner; to twice the degree
Example
She felt doubly fortunate after winning the prize and getting a promotion.
C2 noun /ˈhen.ə/

Henna

Meaning
a reddish-brown dye made from the powdered leaves of a tropical shrub, used to color hair and decorate skin
Example
The bride's hands were beautifully decorated with intricate henna patterns for her wedding ceremony.
B2 noun /flɔː/

flaw

Meaning
a defect or imperfection in something
Example
The diamond had a small flaw that was barely visible.
C1 verb /ˈdɛsɪmeɪt/

decimate

Meaning
To destroy or kill a large proportion of something.
Example
The wildfire decimated the forest.
C1 noun /ˈneɪ.vəl/

Navel

Meaning
the small hollow in the center of the stomach where the umbilical cord was attached
Example
The baby's navel cord fell off after a week.
C1 verb /dɪsˈfɪɡjər/

disfigure

Meaning
to spoil or damage the appearance of something
Example
The fire disfigured the old building.
A2 modal verb /ʃæl/

shall

Meaning
used to express the future or indicate an intention or determination
Example
I shall return before sunset.
A1 conjunction /ɪf/

if

Meaning
used to introduce a condition or supposition
Example
If it rains tomorrow, we will stay home.
B2 noun /ˈtɒl.ər.əns/

Tolerance

Meaning
the ability to accept different opinions or behavior; willingness to allow something to exist
Example
Religious tolerance is important in a diverse society.
C2 noun /ˈlænjæp/

lagniappe

Meaning
A small gift or bonus given by a seller to a customer.
Example
The shopkeeper offered a piece of candy as a lagniappe.
A1 adjective /ˈiː.vən/

Even

Meaning
flat and smooth; equal or uniform; level
Example
The surface was completely even and smooth.
B2 noun /bʌd/

Bud

Meaning
An undeveloped or immature flower before it opens
Example
The rose bud will bloom into a beautiful flower in a few days.
B2 noun (plural) /skræps/

scraps

Meaning
Small pieces left over from something; also small fights or quarrels.
Example
The dog ate the scraps from the table.
B2 noun /ˌɛkspɜːˈtiːz/

expertise

Meaning
Expert knowledge or skill in a particular area.
Example
His expertise in graphic design is widely recognized.
C2 adjective /ˌɪrɪˈprəʊtʃəbl̩/

irreproachable

Meaning
Beyond criticism; faultless.
Example
The judge was known for his irreproachable integrity.
C2 verb /ˈwɪzn/

wizen

Meaning
To become dry, shrunken, and wrinkled.
Example
The flowers began to wizen after days without water.
C2 verb /ɪnˈdʒɛst/

ingest

Meaning
To take food, drink, or another substance into the body, usually by swallowing.
Example
The patient must ingest the medicine with water.
C1 noun /ˈædɪdʒ/

adage

Meaning
a short, well-known saying that expresses a general truth or piece of advice
Example
The old adage says that honesty is the best policy.
C1 adjective /ˈriːɡəl/

regal

Meaning
Resembling or fit for a king; majestic or royal.
Example
The queen entered the hall with a regal presence.
C1 verb /ɪnˈfleɪt/

inflate

Meaning
to fill with air or gas so it expands; to increase excessively or artificially
Example
The mechanic inflated the tire to the correct pressure.
C1 noun /ɪˈlɪpsɪs/

ellipsis

Meaning
The omission of words in a sentence, represented by three dots (...).
Example
The writer used an ellipsis to show that part of the quote was omitted.
C1 adverb /ˌɪn.dɪˈskrɪm.ɪ.nət.li/

Indiscriminately

Meaning
without making careful distinctions; randomly; without discrimination
Example
The company fired employees indiscriminately without considering their performance.
B2 adjective /dʌm/

Dumb

Meaning
unable to speak; silent; lacking intelligence; stupid
Example
She remained dumb during the entire meeting.
A2 noun /ruːf/

roof

Meaning
the top covering of a building or vehicle
Example
The roof of the house needs to be repaired.
B1 noun /soʊl/

Soul

Meaning
the spiritual or immaterial essence of a human being or animal; a person's emotional or intellectual nature
Example
She poured her heart and soul into her artwork.
C1 adjective /ˈhiːdləs/

heedless

Meaning
showing a reckless lack of care or attention
Example
He drove with heedless disregard for the rules.
C1 adjective /ɪˈmeɪʃieɪtɪd/

emaciated

Meaning
Abnormally thin or weak, usually due to illness or lack of food.
Example
The emaciated dog was rescued from the abandoned house.
C1 adjective /ˈsæv.i/

savvy

Meaning
Having practical knowledge and the ability to make good judgments.
Example
She is a tech-savvy entrepreneur.
C1 noun /ˈlɔː.ləs.nəs/

Lawlessness

Meaning
absence of law and order; a state where laws do not exist or are not enforced
Example
The city descended into lawlessness after the government collapsed.
B2 noun /ˈpɪm.pəl/

Pimple

Meaning
a small, inflamed elevation of the skin; a spot on the skin, especially on the face
Example
She was embarrassed about the pimple on her forehead.
C2 noun /ˈɒlɪv brɑːntʃ/

olive-branch

Meaning
A symbol of peace or reconciliation; an offer to end conflict.
Example
He extended an olive-branch to his rival after years of hostility.
C2 verb /fɪˈlændər/

philander

Meaning
to engage in casual or frivolous romantic or sexual relationships
Example
He was known to philander with many women in town.
C1 noun /rɪˈzʌmp.ʃən/

Resumption

Meaning
the action of beginning something again after a pause or interruption
Example
The resumption of classes will be announced next week.
B2 noun /ˌmɛθəˈdɑlədʒi/

methodology

Meaning
A system of methods used in a particular area of study or activity.
Example
The research was conducted using a new methodology.
C2 noun ˌsʌb.dʒʊˈɡeɪ.ʃən

subjugation

Meaning
The action of bringing someone or something under domination or control, especially by force.
Example
The subjugation of weaker nations by colonial powers shaped history.
B1 noun /ˈvɒl.juːm/

volume

Meaning
the amount of space that a substance or object occupies, or that is enclosed within a container
Example
The volume of water in the tank increased after the rain.
B2 noun /kənˌtɪn.juˈeɪ.ʃən/

continuation

Meaning
the action of carrying something on over time; extension
Example
The continuation of the series was announced after the finale.
C1 noun /ɔːˈrɔːrə/

aurora

Meaning
A natural display of lights in the sky, usually seen in polar regions.
Example
We traveled to Norway to see the northern aurora.
C2 noun ˈfaɪ.təʊˌnjuː.tri.ənt

phytonutrient

Meaning
Chemical compounds produced by plants that are beneficial to human health but not essential nutrients.
Example
Broccoli is rich in phytonutrients that enhance immunity.
B2 adjective /ɪmˈper.ə.tɪv/

imperative

Meaning
Of vital importance; crucial; giving or expressing a command.
Example
It is imperative to address the climate crisis immediately.
A2 noun /streŋθ/

Strength

Meaning
the quality or state of being physically strong; power or force
Example
Regular exercise helps build muscle strength.
B1 adverb /ˈkloʊsli/

closely

Meaning
in a way that is very near in space, time, or relationship; carefully and attentively
Example
The detective examined the evidence closely.
B2 noun /ˈboʊld.nəs/

Boldness

Meaning
willingness to take risks; confidence and courage in behavior
Example
Her boldness in confronting the problem impressed everyone.
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.
B2 noun /səˈlɪsɪtər/

solicitor

Meaning
A type of lawyer who gives legal advice and prepares legal documents, often representing clients in lower courts.
Example
She consulted a solicitor before signing the contract.
C1 verb /ˈskwɒbəl/

squabble

Meaning
To argue noisily over something small or unimportant.
Example
The children squabbled over the last piece of cake.
A2 verb /dɪsˈkʌvər/

discover

Meaning
to find something for the first time
Example
Scientists discovered a new planet last year.
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 verb /ˈtʃæfɪŋ/

chaffing

Meaning
Teasing or joking in a lighthearted way.
Example
They were chaffing each other during lunch.
C1 adjective /ˈtraɪflɪŋ/

Trifling

Meaning
of little importance; trivial; insignificant
Example
Don't worry about such trifling matters.
B2 adverb /ˈsoʊlli/

solely

Meaning
only; not involving anyone or anything else
Example
He is solely responsible for the decision.
A1 pronoun /ˈsʌmθɪŋ/

something

Meaning
an unspecified or unknown thing
Example
I think something is wrong with my phone.
C2 noun /ˈhɑːr.bɪn.dʒər/

Harbinger

Meaning
a person or thing that announces or signals the approach of another; a forerunner of something
Example
The first robin of spring is often considered a harbinger of warmer weather to come.
C1 adjective /ˈɔːrəl/

aural

Meaning
Relating to the ear or the sense of hearing.
Example
The lecture was an aural experience as well as an intellectual one.
C1 noun ˌdʒiːəˈlɒdʒɪkəl ˈstrʌktʃər

geological structure

Meaning
The arrangement and composition of rocks, minerals, and landforms in the Earth's crust.
Example
Scientists will study the Moon's geological structure.
B2 adjective /ʌnˈstɛdi/

unsteady

Meaning
not firm or stable; likely to change or fail
Example
She felt unsteady on her feet after the long journey.
C1 noun əˌkred.ɪˈteɪ.ʃən

accreditation

Meaning
The action or process of officially recognizing someone or something as having a particular status or being qualified to perform a particular activity.
Example
Accreditation ensures institutional credibility.
B1 noun əˈreɪndʒmənt

arrangement

Meaning
The way things are organized, positioned, or structured.
Example
The arrangement of protons in the nucleus is critical.
C1 adjective /ˌniːoʊˈlɪθɪk/

neolithic

Meaning
Relating to the later part of the Stone Age, when ground or polished stone weapons and tools prevailed.
Example
Neolithic communities began practicing agriculture and domesticating animals.
B2 preposition /kənˈsɜːnɪŋ/

concerning

Meaning
about or relating to something; causing worry or anxiety
Example
There are some reports concerning the new project.
B2 noun/verb /ˈpriːfɪks/

prefix

Meaning
a word, letter, or number placed before another; as a verb, to add something in front of something else
Example
Developers often prefix variables with an underscore.
C2 adjective /ˌɪlˈneɪ.tʃəd/

ill-natured

Meaning
Having a bad or unpleasant character; unkind or malicious.
Example
He made an ill-natured remark about his colleague.
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.
A2 noun /ˈroʊbɒt/

robot

Meaning
a machine capable of carrying out a complex series of actions automatically
Example
The factory uses robots to assemble cars efficiently.
A1 verb /let/

let

Meaning
to allow someone to do something; to give permission
Example
Please let me help you with that task.
B2 noun /ˈɒt.ər/

Otter

Meaning
a mammal with webbed feet that lives near water and feeds on fish
Example
The playful otter swam gracefully in the river.
C1 verb /ˈfɜːrmɛnt/

ferment

Meaning
to undergo a chemical process where sugars are converted to alcohol or acid; to incite or stir up change
Example
The grapes are left to ferment for several weeks.
B2 adjective /ˈseɪ.krɪd/

Sacred

Meaning
connected with God or a god; considered holy; worthy of religious worship
Example
The sacred temple was visited by thousands of pilgrims.
C2 adjective /ɪnˈæpt/

Inapt

Meaning
not suitable; inappropriate; unfit
Example
His comment was inapt for the formal meeting.
C2 noun /ˌdaɪ.jʊˈret.ɪk/

diuretic

Meaning
A substance that promotes the production of urine.
Example
Coffee has a mild diuretic effect.
B1 verb /pəʊs(t)ˈpəʊn/

postpone

Meaning
to delay something to a later time
Example
The meeting was postponed until next week.
A2 verb /ˈloʊər/

lower

Meaning
to move something to a lower position or to reduce
Example
The company decided to lower the prices.
C1 verb /ˈɡlɔːrɪfaɪ/

glorify

Meaning
to praise or honor someone or something; to make something seem better than it is
Example
The movie glorifies war heroes.
B2 adjective /stɜːrn/

Stern

Meaning
serious and demanding exact conformity to rules; strict and severe
Example
The teacher gave the students a stern warning about cheating.
C2 noun /ˈskɜː.vi/

scurvy

Meaning
A disease caused by a deficiency of vitamin C, leading to weakness, gum disease, and bleeding.
Example
Sailors often suffered from scurvy during long sea voyages without fresh fruits.
B2 verb /əˈfend/

offend

Meaning
to cause displeasure or resentment; to hurt someone's feelings
Example
His rude comments offended many people at the meeting.
C2 noun /kəˈrɑːləri/

corollary

Meaning
a direct or natural consequence or result
Example
One corollary of the new policy was increased public awareness.
B2 verb, noun /ɪkˈsplɔɪt/

exploit

Meaning
to make full use of and derive benefit from (a resource); to use someone unfairly for one’s own advantage
Example
The company was accused of exploiting child labor.
C2 noun /bəˈfuːnəri/

buffoonery

Meaning
Foolish or ridiculous behavior intended to amuse.
Example
His constant buffoonery irritated the serious audience.
C2 adjective /ˈbrɔːni/

brawny

Meaning
Physically strong and muscular.
Example
The brawny man lifted the heavy box with ease.
B2 adjective /ræʃ/

rash

Meaning
Acting quickly without careful consideration; reckless.
Example
It was a rash decision to invest without research.
B2 verb /ɪɡˈzɔːst/

exhaust

Meaning
to tire out completely; to use up resources
Example
The long journey exhausted the children.