data breach
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B2 noun /ˈdeɪ.tə briːtʃ/

data breach

Meaning
Unauthorized disclosure of sensitive information through security violation
Example
A data breach exposed millions of users' passwords.
B2 verb /dɪˈtekt/

detect

Meaning
to discover or identify the presence or existence of something; to notice something that is not immediately obvious
Example
The security system can detect movement in the building.
B1 noun /ˈded.laɪn/

Deadline

Meaning
the latest time or date by which something should be completed
Example
The deadline for submitting the project is next Friday.
B2 adjective /dɪˈsaɪsɪv/

decisive

Meaning
Having the ability to make decisions quickly and effectively; determining the outcome.
Example
Her decisive action saved the company from collapse.
C2 noun /ˌdɪsprəˈpɔːrʃən/

disproportion

Meaning
a lack of balance or symmetry; an inequality
Example
There is a clear disproportion between rich and poor in many societies.
B1 verb /dɪsˈtrɪbjuːt/

distribute

Meaning
to give out or spread something among several people or places
Example
The teacher will distribute the test papers.
C1 noun ˌdjʊə.rəˈbɪl.ə.ti

durability

Meaning
The ability to withstand wear, pressure, or damage; hard-wearing.
Example
The durability of materials affects performance.
C2 noun /ˈdɔːrmər/

dormer

Meaning
A window that projects vertically from a sloping roof.
Example
The old house had a dormer overlooking the garden.
C1 noun ˌdɪm.ɪˈnjuː.ʃən

diminution

Meaning
A reduction in the size, extent, or importance of something; decrease.
Example
There has been a diminution in air pollution.
A2 adjective /draɪ/

Dry

Meaning
free from moisture or liquid; not wet; lacking interest or excitement
Example
The desert has very dry climate.
A2 verb, noun /dɪsˈlaɪk/

dislike

Meaning
to feel distaste or aversion for someone or something; a feeling of aversion
Example
I really dislike eating spicy food.
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.
C1 verb /dɪˈraɪd/

deride

Meaning
to mock or ridicule someone or something
Example
The critics derided the new movie for its poor script.
C1 verb /dɪˈpriːʃieɪt/

depreciate

Meaning
to reduce in value over time
Example
Cars tend to depreciate quickly in their first few years.
B2 verb /dɪˈsiːv/

deceive

Meaning
To cause someone to believe something that is not true.
Example
He tried to deceive his friends with a fake story.
C2 noun /ˌdɪʃəˈbiːl/

dishabille

Meaning
The state of being only partly or loosely dressed; casual or careless attire.
Example
She answered the door in a state of dishabille, wearing just a robe.
C2 noun /dɪˈkrɛpɪˌtjuːd/

decrepitude

Meaning
the state of being old, weak, and worn out
Example
The once-great empire fell into decrepitude.
C2 noun /ˈdoʊtɪdʒ/

dotage

Meaning
The period of old age, especially when one is weak or senile.
Example
He spent his dotage reminiscing about his youth.
A1 verb /driːm/

dream

Meaning
to have thoughts and images in your mind while sleeping; to hope for
Example
I often dream about flying in the sky.
B2 noun /dɪˈstɜː.bəns/

Disturbance

Meaning
the interruption of a settled and peaceful condition; anxiety or mental uneasiness
Example
The loud music created a disturbance that bothered all the neighbors.
B1 noun /dɪˈsɪʒənˌmeɪkɪŋ/

decision-making

Meaning
the process of making decisions, especially important or business-related decisions
Example
The CEO's decision-making was crucial for the success of the company.
C2 noun /dɪˈspɔɪlər/

despoiler

Meaning
A person who robs, plunders, or violently takes things from others.
Example
The despoilers left the city in ruins.
A2 noun /ˈdæm.ɪdʒ/

Damage

Meaning
physical harm caused to something; injury or harm that reduces value or usefulness
Example
The storm caused significant damage to the coastal buildings.
A2 noun /ˈdæn.sər/

Dancer

Meaning
a person who performs dance, typically as a profession or art form
Example
The dancer performed gracefully on the stage.
B2 verb /dɪˈzɒlv/

dissolve

Meaning
to melt or become liquid; to officially end or break up an agreement or organization
Example
The sugar will dissolve quickly in hot tea.
B2 adjective /ˈdɪl.ɪ.dʒənt/

Diligent

Meaning
hardworking and careful; showing persistent effort
Example
She is a diligent student who studies every day.
B2 noun /dɪsˈɡaɪz/

Disguise

Meaning
a means of altering one's appearance to conceal one's identity; something that hides the truth
Example
The spy wore an elaborate disguise to avoid being recognized by enemies.
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.
A1 noun /dɔːr/

Door

Meaning
a movable barrier used to close an entrance to a building or room
Example
Please close the door when you leave the room.
C1 noun /dɪˈmiːnər/

demeanor

Meaning
a person's outward behavior or appearance
Example
Her calm demeanor impressed everyone at the meeting.
C1 adjective /dɪˈstrɔːt/

distraught

Meaning
extremely upset and anxious, often to the point of being unable to think clearly
Example
She was distraught after losing her pet.
B2 noun /dɪˈpen.dəns/

Dependence

Meaning
the state of relying on or needing someone or something for support; addiction
Example
His dependence on technology made it difficult for him to work without internet.
B1 noun /dəˈrɛktər/ or /daɪˈrɛktər/

director

Meaning
a person who manages or oversees a company, department, or film
Example
The director gave final approval for the new movie script.
C1 noun /ˈdɛspətɪzəm/

despotism

Meaning
absolute power exercised in a cruel and oppressive way
Example
The people revolted against the era of despotism.
B2 noun ˌdiː.fɒr.ɪˈsteɪ.ʃən

deforestation

Meaning
The action of clearing a wide area of trees; the permanent destruction of forests in order to make the land available for other uses.
Example
Deforestation accelerates the loss of biodiversity.
C1 verb /dɪˈsɛm.ɪ.neɪt/

disseminate

Meaning
To spread or give out something, especially news, information, ideas, etc., to a lot of people.
Example
Social media helps to disseminate information quickly.
B2 adjective /ˈdɒm.ɪ.nənt/

Dominant

Meaning
controlling, influencing, or prevailing over others; most important or powerful
Example
The dominant player controlled the entire basketball game.
C2 verb /ˈdʌv.teɪl/

dovetail

Meaning
to fit or combine perfectly together
Example
Her plans dovetail perfectly with our goals.
C2 noun /ˌdaɪəˈlɛktɪk/

dialectic

Meaning
A method of argument or reasoning by dialogue, especially as a means of investigating truth.
Example
The philosopher used dialectic to challenge his students' assumptions.
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.
B2 noun /diˈoʊ.dər.ənt/

Deodorant

Meaning
a substance that removes or conceals unpleasant smells, especially bodily odors
Example
She applied deodorant before going to the gym to stay fresh during workout.
B2 noun /dɪsˈkloʊʒər/

disclosure

Meaning
the action of making something known or public
Example
The disclosure of the company's financial status was delayed.
C1 verb dɪˈsaɪ.fɚ

decipher

Meaning
To convert something written in code into normal language; to succeed in understanding the meaning of something.
Example
It took hours to decipher the ancient script.
C2 noun /ˈdɛkəˌlɔːɡ/

decalogue

Meaning
The Ten Commandments in the Bible; a set of fundamental rules or principles.
Example
The priest gave a sermon on the importance of the Decalogue.
B2 noun /dɪkˈteɪtə/

dictator

Meaning
a ruler with total power over a country, typically one who has obtained control by force
Example
The dictator ruled the country with an iron fist.
C2 noun /dɪˈkæmərən/

decameron

Meaning
A collection of 100 tales written by Giovanni Boccaccio in the 14th century, told by a group of people over ten days.
Example
The Decameron is considered a masterpiece of classical Italian literature.
C1 adjective /dɪˈsiːtfəl/

deceitful

Meaning
Deliberately misleading or dishonest.
Example
She gave a deceitful answer to hide the truth.
B1 noun /dɪˈfens/

Defence

Meaning
the action of defending from or resisting attack; protection or support
Example
The country strengthened its defence system against potential threats.
C1 verb/adjective /dɪˈdʒɛnəreɪt/

degenerate

Meaning
To decline or deteriorate in quality, character, or condition; or someone with low moral standards.
Example
The once thriving empire began to degenerate into chaos.
C1 noun /dɪˈspɜːrʒən/

dispersion

Meaning
The action or process of distributing things or people over a wide area.
Example
The dispersion of seeds by the wind helps plants reproduce.
C1 verb /dɪsˈɡrʌntl/

disgruntle

Meaning
to make someone dissatisfied or discontented
Example
The unfair treatment disgruntled the workers.
A1 noun /deɪts/

Dates

Meaning
sweet brown oval fruits that grow on date palm trees
Example
Dates are commonly eaten during Ramadan to break the fast.
C1 noun /ˈdrɛsˌmeɪkər/

dressmaker

Meaning
A person who makes or alters women's clothing professionally.
Example
The dressmaker crafted a beautiful gown for the bride.
B2 verb /dwel/

dwell

Meaning
to live in a place; to think about something for a long time
Example
They dwell in a small cottage by the lake.
C1 adjective /ˈdrɪəri/

dreary

Meaning
dull, bleak, and lifeless; depressing
Example
The long, dreary winter made everyone feel gloomy.
C1 verb /dɪsˈpruːv/

disprove

Meaning
to show that something is false or wrong
Example
The scientist worked hard to disprove the old theory.
B2 verb dɪˈtɪrɪəˌreɪts

deteriorates

Meaning
To become progressively worse; to decline in quality, condition, or strength.
Example
The quality of air deteriorates due to pollution.
C1 adjective dɒɡˈmæt.ɪk

dogmatic

Meaning
Being inclined to lay down principles as incontrovertibly true; characterized by arrogant assertion of unproven principles.
Example
His dogmatic approach to politics made discussions difficult.
C2 adjective /dɪsˈpɛptɪk/

dyspeptic

Meaning
Relating to indigestion or having a gloomy or irritable disposition.
Example
After the heavy meal, he felt dyspeptic and uncomfortable.
A2 verb /der/

dare

Meaning
to have courage to do something; to challenge someone
Example
I dare you to jump into the pool.
C1 noun dɪˈskrep.ən.siz

discrepancies

Meaning
Differences between things that should be the same
Example
Discrepancies in regulations delay progress.
C1 verb /dɪˈfɔːrm/

deform

Meaning
to change the shape or form of something, especially in a way that makes it ugly or damaged; to distort
Example
The intense heat began to deform the plastic container.
C2 noun /ˌdɪvɪˈneɪʃən/

divination

Meaning
the practice of seeking knowledge of the future or the unknown by supernatural means
Example
Ancient people often relied on divination to guide important decisions.
C2 noun /ˈdɛkəˌliːtər/

decaliter

Meaning
A metric unit of capacity equal to ten liters.
Example
The container could hold up to one decaliter of water.
C2 verb /ˌdɪsəˈbjuːz/

disabuse

Meaning
To free someone from a false belief or misconception.
Example
The teacher tried to disabuse the students of their misunderstanding.
C2 adjective /ˌdɛbəˈnɛr/

debonair

Meaning
confident, stylish, and charming, typically referring to a man
Example
He looked debonair in his tuxedo at the gala.
C1 verb /daɪˈluːt/

dilute

Meaning
To make a liquid thinner or weaker by adding water or another solvent.
Example
You should dilute the juice with water before serving it to children.
C2 verb /ˌdɪskəmˈpoʊz/

discompose

Meaning
To disturb the order or calmness of something or someone.
Example
The unexpected question seemed to discompose her.
B2 verb /ˈdɛvəˌsteɪt/

devastate

Meaning
to cause severe and overwhelming destruction or damage
Example
The hurricane devastated the coastal town.
C1 adjective /dɪsˈkwaɪətɪŋ/

disquieting

Meaning
Causing worry, unease, or anxiety.
Example
The news report was deeply disquieting to the public.
B2 noun /dɪˈfɛndər/

defender

Meaning
a person who protects someone or something from harm or attack
Example
The defender blocked the shot and saved the goal.
C1 adjective /ˌdaɪəˈbɒlɪkəl/

diabolical

Meaning
Wicked, cruel, or outrageously bad; resembling the devil.
Example
The dictator’s diabolical rule brought misery to the nation.
C1 adjective /dɪˈsɜːrnəbl/

discernible

Meaning
able to be seen, recognized, or understood
Example
There was a discernible change in his behavior.
C2 adjective /dɪˈluːsɪv/

delusive

Meaning
Giving a false or misleading impression; deceptive.
Example
His promises turned out to be delusive and untrustworthy.
C1 noun /ˈdæmpər/

damper

Meaning
something that reduces or lessens the force, effect, or excitement
Example
The cancellation of the trip put a damper on their enthusiasm.
A2 noun /ˈdeɪ.tə/

Data

Meaning
facts and statistics collected together for reference or analysis; information in digital form
Example
Scientists analyzed the data from thousands of experiments to reach their conclusion.
A2 noun /ˈdɪs.təns/

Distance

Meaning
the length of space between two points; remoteness in place, time, or relationship
Example
The distance between the two cities is approximately three hundred kilometers.
C1 noun /ˈdjuːplɛks/

duplex

Meaning
A house or apartment divided into two separate residences.
Example
They live in a duplex near the city center.
B2 adjective /dɪsˈɡreɪsfəl/

Disgraceful

Meaning
shameful; bringing dishonor; worthy of condemnation
Example
His disgraceful behavior shocked everyone at the party.
C1 verb /ˈdiːmɑːrˌkeɪt/

demarcate

Meaning
to set the boundaries or limits of something
Example
The land was demarcated with fences to avoid disputes.
C2 noun/verb /dɪsˈfeɪvər/

disfavor

Meaning
disapproval or dislike; to regard with disapproval
Example
The new policy fell into disfavor with the public.
C1 adjective /ˈdjuːbiəs/

dubious

Meaning
Hesitating or doubting; not to be relied upon.
Example
She gave him a dubious look after hearing his excuse.
A1 verb /duː/

do

Meaning
to perform an action; to carry out
Example
I do my homework every evening.
B1 noun dɪˈskʌvəriz

discoveries

Meaning
The action or process of finding or learning something for the first time; facts or things discovered.
Example
His discoveries revolutionized multiple fields.
C1 adjective /ˈdæʃ.ɪŋ/

Dashing

Meaning
stylish and confident; lively and energetic; attractive and charming
Example
He looked dashing in his new suit.
B2 noun ডিজিটাল ডিটক্স

digital detox

Meaning
A period of time during which a person refrains from using electronic devices such as smartphones or computers, regarded as an opportunity to reduce stress or focus on social interaction in the physical world.
Example
A digital detox can help reduce hand fatigue.
C1 verb /dɪˈfjuːz/

diffuse

Meaning
to spread over a wide area or among a large number of people
Example
The smell of fresh bread diffused through the entire house.
C1 noun, verb /dɪsˈɑːnər/

dishonor

Meaning
a state of shame or loss of respect; to bring shame upon someone or something
Example
The soldier felt he had brought dishonor to his family.
A2 preposition /dɪˈspaɪt/

despite

Meaning
Without being affected by; in spite of.
Example
He continued his work despite the difficulties.
C1 noun /ˌdiːˈmer.ɪt/

Demerit

Meaning
a fault or disadvantage; a mark given for a fault or offense
Example
The student received a demerit for arriving late to class repeatedly.
C1 noun /ˌdiː.kɒmpəˈzɪʃən/

decomposition

Meaning
the process of decaying or breaking down into simpler parts
Example
The decomposition of leaves enriches the soil.
C2 verb /dɪsˈtɛnd/

distend

Meaning
to swell or expand by pressure from within
Example
Her stomach began to distend after the large meal.
C1 noun dɪˌzɝː.t̬ə.fɪˈkeɪ.ʃən

desertification

Meaning
The process by which fertile land becomes desert, typically as a result of drought, deforestation, or inappropriate agriculture.
Example
Deforestation accelerates desertification.
C1 verb /dɪˈmiːn/

demean

Meaning
to cause someone to lose dignity or respect
Example
The manager demeaned his employees with rude remarks.
B2 adjective /ˈduː.əl/

Dual

Meaning
having two parts or consisting of two elements; double
Example
She has dual citizenship of both countries.
B2 noun /drɪl/

drill

Meaning
a tool or exercise used for making holes or practicing skills
Example
The students took part in a fire drill at school.
C2 noun /ˈdɔɪən/

doyen

Meaning
The most respected or prominent person in a particular field.
Example
He is regarded as the doyen of modern literature in the country.
C1 verb /dɪsˈɑːrm/

disarm

Meaning
to take weapons away from someone; to make someone feel less hostile
Example
The soldiers were ordered to disarm the rebels.
C2 noun /ˈdɛkəˌɡræm/

decagram

Meaning
A metric unit of mass equal to ten grams.
Example
The package weighed exactly one decagram.
B2 verb /draʊn/

drown

Meaning
to die or cause to die by being submerged in and inhaling water
Example
He nearly drowned while swimming in the river.
C1 noun /ˈdɪsənˌtɛri/

dysentery

Meaning
An infection of the intestines resulting in severe diarrhea with blood and mucus.
Example
Many soldiers suffered from dysentery during the war.
B2 verb /ˈdæzəl/

dazzle

Meaning
to impress deeply or blind with brilliance or skill
Example
The magician's tricks dazzled the audience.
C2 verb /ˈdɛpjʊˌtaɪz/

deputize

Meaning
To appoint someone as a deputy; to act as a substitute or representative.
Example
The sheriff decided to deputize several locals to help maintain order.
A2 noun /ˈdɒŋ.ki/

Donkey

Meaning
a domesticated animal related to the horse, with long ears and a braying call
Example
The donkey carried heavy bags up the mountain.
C1 noun /ˌdɛfəˈmeɪʃən/

defamation

Meaning
the act of damaging someone's reputation by making false statements
Example
The newspaper was sued for defamation of character.
C2 noun /dɪˈkæmɪtər/

decameter

Meaning
A metric unit of length equal to ten meters.
Example
The field was measured in decameters for accuracy.
B1 adverb /ˈdaʊnwədz/

Downwards

Meaning
towards a lower place or position; in a downward direction
Example
The ball rolled downwards along the slope.
B2 adjective /dɪˈstɜː.bɪŋ/

disturbing

Meaning
causing anxiety, worry, or emotional distress
Example
The news about the accident was deeply disturbing.
C1 adjective /diːˈsɛntrəlaɪzd/

decentralized

Meaning
Controlled by several local offices or authorities rather than one single one.
Example
The decentralized system allowed for more control at local levels.
A2 verb /dəˈrɛkt/ or /daɪˈrɛkt/

direct

Meaning
to manage or control the course of something; to give instructions
Example
She directed the team to complete the project on time.
A2 verb /ˈdʌbəl/

double

Meaning
to make twice as much in size, number, or amount
Example
The company hopes to double its profits this year.
B2 noun /diːd/

Deed

Meaning
an action that is performed intentionally or consciously; a legal document showing ownership
Example
His heroic deed saved the child from drowning in the river.
C1 verb /dɪˈkraɪ/

decry

Meaning
to publicly criticize or express strong disapproval of something
Example
Many activists decry the destruction of the rainforest.
C1 verb /dɪˈtɛst/

detest

Meaning
To dislike intensely or hate.
Example
I detest waking up early on weekends.
B2 noun daɪˈmen.ʃən

dimension

Meaning
An aspect or feature of a situation, problem, or thing; a measurable extent.
Example
Renewable projects add a new dimension to urban planning.
C1 verb /dɪˈpoʊz/

depose

Meaning
to remove someone from office or power, especially suddenly and forcefully
Example
The rebels managed to depose the dictator after years of unrest.
B1 noun /dɪˈskʌvəri/

discovery

Meaning
The act of finding or learning something for the first time.
Example
The discovery of penicillin changed medical history.
A2 verb /dɪsˈkʌvər/

discover

Meaning
to find something for the first time
Example
Scientists discovered a new planet last year.
B1 verb /dɪˈpɛndɪŋ/

depending

Meaning
Being contingent on or influenced by something.
Example
The success of the plan is depending on the team's effort.
A1 noun /ˈdɔː.tər/

Daughter

Meaning
a female offspring; a young woman in relation to her parents
Example
Their daughter graduated from medical school with top honors.
C1 noun /dɪˈsɜːn.mənt/

discernment

Meaning
The ability to judge well or understand something correctly; keen insight.
Example
His discernment in business decisions made him successful.