deltaic landscape
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C1 noun delˈteɪɪk ˈlændskeɪp

deltaic landscape

Meaning
A geographical area formed by sediment deposits at the mouth of a river, creating a triangular land formation.
Example
Bangladesh has a unique deltaic landscape.
C1 noun /dɪˌnɒmɪˈneɪʃən/

denomination

Meaning
a recognized autonomous branch of the Christian Church; a unit of value or currency
Example
The church belongs to a Protestant denomination.
B2 adjective/noun ˌdem.əˈɡræf.ɪk

demographic

Meaning
Relating to the structure of populations; statistical data relating to the population and particular groups within it.
Example
The company analyzes demographic trends before launching a product.
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.
B1 noun /ˈdeə.ri/

Dairy

Meaning
a building or farm where milk is produced; products made from milk; a shop selling milk and milk products
Example
The local dairy provides fresh milk and cheese to the entire neighborhood.
C2 adjective /ˈdaʊti/

doughty

Meaning
brave, valiant, courageous
Example
The doughty soldier never backed down from a challenge.
C1 noun /ˌdɛməˈlɪʃən/

demolition

Meaning
the act or process of destroying a building or structure
Example
The demolition of the old factory took several weeks.
B2 adjective /dɪˈpɛndəbl/

dependable

Meaning
able to be trusted or relied on; consistently reliable
Example
She is a dependable colleague who always meets deadlines.
C1 noun ˌdɪdʒɪˈnɛəreɪʃən

degeneration

Meaning
The process of decline or deterioration in structure or function.
Example
The degeneration of brain cells leads to cognitive decline.
C2 noun /drɛɡz/

dregs

Meaning
the remnants of a liquid left in a container, together with any sediment or grounds; the most worthless part of something
Example
He drank the dregs of the coffee before leaving.
C1 noun /dɪˈlɪriəm/

delirium

Meaning
An acutely disturbed state of mind characterized by restlessness, illusions, and incoherence.
Example
The patient experienced delirium after the surgery due to the strong medication.
B2 verb /dʌmp/

dump

Meaning
to drop or dispose of something carelessly; to end a relationship suddenly
Example
He dumped all the trash into the bin.
A2 verb /ˈdraɪvɪŋ/

driving

Meaning
the act of controlling and operating a vehicle; guiding or motivating something forward
Example
She loves driving along the coast on weekends.
C1 noun/verb /dɪsˈkwaɪət/

disquiet

Meaning
A feeling of worry or unease; to make someone feel anxious or uneasy.
Example
The strange silence filled the room with disquiet.
B2 noun dɪˈplɔɪmənt

deployment

Meaning
The action of bringing resources into effective action.
Example
The deployment of the new software was completed successfully.
B2 noun /ˈdɛməˌkræt/

democrat

Meaning
a supporter of democracy or a member of the Democratic Party in the US
Example
He is a strong democrat who believes in equal rights.
B2 adjective daɪˈvɜːs

diverse

Meaning
Showing a great deal of variety; very different.
Example
Diverse industries enhance economic resilience.
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.
C1 adjective /dɪsˈkɔːrdənt/

discordant

Meaning
disagreeing or clashing; harsh and jarring in sound
Example
The discordant notes of the band hurt our ears.
B2 noun /ˌdɪsɪnˈfɛktənt/

disinfectant

Meaning
a chemical substance used to kill harmful microorganisms on surfaces
Example
The cleaner sprayed disinfectant on the table.
C1 adjective /ˈdɛkədənt/

decadent

Meaning
Characterized by or reflecting a state of moral or cultural decline; excessively self-indulgent.
Example
The party was filled with decadent luxury and excess.
C1 noun /ˈdeɪ.li.ə/

Dahlia

Meaning
a garden plant with brightly colored flowers that bloom in summer and autumn
Example
She planted colorful dahlias in her garden last summer.
B2 noun /dɪˈpen.dənt/

Dependent

Meaning
a person who relies on another for financial support; someone who depends on others
Example
As a tax dependent, she could not file her own tax return separately.
C2 adjective /ˈdɛsɪkeɪtɪd/

desiccated

Meaning
completely dried, having had all moisture removed
Example
The museum displayed desiccated specimens of plants.
B1 noun /dɪˈlaɪt/

Delight

Meaning
a feeling of happiness or pleasure; something that gives great pleasure
Example
The children's laughter filled her heart with pure delight.
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.
C2 verb /ˈdɒɡmətaɪz/

dogmatize

Meaning
To state opinions or beliefs as if they were absolute truths.
Example
The professor tended to dogmatize on political issues.
C1 verb /dɪsˈoʊn/

disown

Meaning
to refuse to acknowledge or accept responsibility for someone or something
Example
He decided to disown his reckless brother.
C2 verb /dɪsˈtɛnd/

distend

Meaning
to swell or expand by pressure from within
Example
Her stomach began to distend after the large meal.
C2 adjective /ˈdɪsəluːt/

dissolute

Meaning
lacking moral restraint; indulging excessively in sensual pleasures
Example
He led a dissolute life filled with parties and gambling.
B2 noun /ˈdiː.fekt/

Defect

Meaning
a shortcoming, imperfection, or lack; a fault or flaw in something
Example
The manufacturing defect caused the product to fail after only one week.
B2 noun /dɪˈveləpər/

developer

Meaning
a person or company that creates software, buildings, or land projects
Example
She works as a software developer at a tech company.
C2 adjective /daɪˈɜːrnəl/

diurnal

Meaning
active during the day; occurring daily
Example
Most birds are diurnal creatures, active in daylight hours.
C2 noun /ˈdɛvɪltrɪ/

deviltry

Meaning
Cruel or malicious behavior; mischief with an evil aspect.
Example
The villain’s deviltry terrified the townsfolk.
C1 verb /diːˈkoʊd/

decode

Meaning
to convert a coded message into a readable form; to interpret meaning
Example
The software can decode the hidden message within seconds.
B1 adjective /ˈdefɪnət/

Definite

Meaning
clearly stated or decided; not vague or uncertain; specific
Example
We need a definite answer by tomorrow.
B1 verb /dɪˈvaɪd/

divide

Meaning
to separate into parts; to split or break apart
Example
Please divide the cake into eight pieces.
B2 adverb /ˈden.sli/

densely

Meaning
In a closely compacted or crowded manner.
Example
The area is densely covered with trees.
B2 noun /dɪsˈkloʊʒər/

disclosure

Meaning
the action of making something known or public
Example
The disclosure of the company's financial status was delayed.
C2 adjective /ˈdjuːtiəbl/

dutiable

Meaning
subject to customs duty or tax
Example
Imported electronics are often dutiable at the border.
C2 verb /ˌdɒmɪˈnɪə/

domineer

Meaning
to assert one's will over another in an arrogant way
Example
He tends to domineer over his younger colleagues.
C2 noun /ˈdɒɡərəl/

doggerel

Meaning
Comic or irregular verse, often poorly constructed and lacking in artistic quality.
Example
The poet’s work was dismissed as mere doggerel by the critics.
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.
C2 noun /dɪˈsɛnʃən/

dissension

Meaning
Strong disagreement or difference of opinion, especially leading to discord within a group.
Example
The meeting ended in dissension among the committee members.
B2 verb /dɪˈfaɪ/

defy

Meaning
to openly resist or refuse to obey someone or something; to challenge or dare someone to do something
Example
The protesters continued to defy the government's ban on public gatherings.
B2 noun /dɪˈrɛktəri/

directory

Meaning
a book or online resource listing people, businesses, or services with relevant details
Example
I need to find a plumber in the phone directory.
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.
C1 noun /ˈdeɪˌbreɪk/

daybreak

Meaning
The time in the morning when daylight first appears; dawn.
Example
They set out on their journey at daybreak.
B2 verb /ˌdɪfəˈrɛnʃieɪt/

differentiate

Meaning
To recognize or make a distinction between things.
Example
It is important to differentiate between fact and opinion.
B2 adjective /dɪˈziːzd/

Diseased

Meaning
affected by disease; suffering from illness; sick
Example
The diseased tree had to be removed from the garden.
B1 adjective /dɪˈtɜːrmɪnd/

determined

Meaning
Having firmly decided to do something and not letting anything stop you.
Example
She was determined to finish her studies despite many obstacles.
C2 verb /diːˈfrɑːk/

defrock

Meaning
to officially remove a priest or minister from their position and authority
Example
The church decided to defrock the priest after the scandal.
A2 noun /ˈdaʊnˌtaʊn/

downtown

Meaning
the central part of a city
Example
They spent the afternoon shopping downtown.
C1 adjective /ˈdesələt/

Desolate

Meaning
deserted; lonely; barren
Example
The abandoned village looked desolate and empty.
B1 noun /dɪˈstrʌk.ʃən/

Destruction

Meaning
the action or process of causing damage to something so that it no longer exists
Example
The earthquake caused widespread destruction throughout the entire city.
C2 adjective /daɪˈɡrɛsɪv/

digressive

Meaning
Tending to depart from the main subject in speech or writing.
Example
The speaker's digressive style made the lecture difficult to follow.
C2 noun /daɪˈɡrɛʃən/

digression

Meaning
A temporary departure from the main subject in speech or writing.
Example
Her story was full of interesting digressions.
C1 verb /dɪˈluːd/

delude

Meaning
To mislead someone into believing something that is not true.
Example
He deluded himself into thinking he could win the race without training.
C1 adjective /dɪsˈdʒɔɪntɪd/

disjointed

Meaning
Lacking order, coherence, or connection; disconnected.
Example
The movie felt disjointed and hard to follow.
C2 noun /dɪˈpɑːzɪtər/

depositor

Meaning
a person who places money in a bank or financial institution
Example
The bank provides insurance to protect depositors’ funds.
C2 noun /ˈdændi/

dandy

Meaning
a man who gives too much attention to his appearance and clothes
Example
The young dandy spent hours grooming himself before the party.
C1 verb /dɪsˈfɪɡjər/

disfigure

Meaning
to spoil or damage the appearance of something
Example
The fire disfigured the old building.
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 adverb /ˈdɑːrklɪŋ/

darkling

Meaning
In the dark or growing dark; dimly.
Example
The forest creatures moved darkling through the night.
B1 verb /dɪˈfɛnd/

defend

Meaning
To protect someone or something from harm or attack.
Example
The lawyer worked hard to defend her client.
C1 adjective /dɪˈrɒɡətɔːri/

derogatory

Meaning
Showing a critical or disrespectful attitude.
Example
The article contained derogatory comments about the politician.
C1 noun /dɪˈmiːnər/

demeanor

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

dissent

Meaning
To hold or express opinions that are different from those officially accepted.
Example
Several members dissented from the majority decision.
B2 noun, verb /dɪˈfɔːlt/

default

Meaning
failure to fulfill an obligation, especially to repay a loan
Example
The company defaulted on its loan payments.
C1 verb /dɪsˈɡrʌntl/

disgruntle

Meaning
to make someone dissatisfied or discontented
Example
The unfair treatment disgruntled the workers.
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.
C1 adjective /dɪˈlɪriəs/

delirious

Meaning
in an extremely disturbed or excited state of mind, often due to illness or emotion
Example
He was delirious with fever and kept muttering nonsense.
C2 noun /djuːˈɛnə/

duenna

Meaning
an older woman acting as a governess or chaperone, especially in Spanish families
Example
The young lady was accompanied by a duenna during the festival.
C2 noun /ˈdɛsɪkənt/

desiccant

Meaning
a substance that absorbs moisture and keeps things dry
Example
Silica gel packets are commonly used as a desiccant in packaging.
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.
B2 noun /dɪˈpləʊməsi/

diplomacy

Meaning
The profession, activity, or skill of managing international relations or handling affairs tactfully.
Example
Effective diplomacy helped avoid the conflict.
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.
C1 noun /dɪˈfɛkʃən/

defection

Meaning
The act of abandoning one’s country, cause, or group in favor of another.
Example
The politician’s defection shocked his supporters.
A1 preposition /ˈdjʊərɪŋ/

during

Meaning
throughout the course of a period of time
Example
I fell asleep during the movie.
C2 noun /dɪˈstɛnʃən/

distention

Meaning
The state of being swollen due to internal pressure.
Example
The patient complained of abdominal pain and distention.
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.
C1 adjective /dɪˈklærətɪv/

declarative

Meaning
relating to a statement that declares something; in grammar, a sentence that makes a statement
Example
A declarative sentence simply states a fact or opinion.
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.
C1 noun /ˈdɛdlɒk/

deadlock

Meaning
a situation in which progress is impossible because of disagreement
Example
Negotiations reached a deadlock after neither side agreed to compromise.
B2 noun /dwɔːrf/

dwarf

Meaning
a person, animal, or plant much smaller than average
Example
Snow White lived with seven dwarfs.
B1 adjective /dɪˈmændɪŋ/

demanding

Meaning
requiring much effort, skill, or attention; difficult to satisfy
Example
The job is very demanding and requires long hours of work.
C1 verb /ˈdræm.ə.taɪz/

dramatize

Meaning
to present a story in a dramatic way, or to exaggerate something
Example
The novel was dramatized into a popular TV series.
C1 noun /dɪˈvaɪzər/

divisor

Meaning
A number by which another number is divided.
Example
In the equation 12 ÷ 3, the number 3 is the divisor.
C1 adjective dɪ ˈskrɛʃ.ən.er.i

discretionary

Meaning
Available for use at the discretion of the user; not required or mandatory.
Example
He set aside some discretionary income for travel.
C2 noun /daɪˈvʌldʒəns/

divulgence

Meaning
the act of revealing or disclosing something secret or private
Example
The divulgence of company secrets caused a major scandal.
B2 noun /ˈdrɔː.bæk/

Drawback

Meaning
a feature that renders something less acceptable; a disadvantage or problem
Example
The main drawback of living in the city is the high cost of housing.
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.
C2 verb /dɔːb/

daub

Meaning
to spread a thick or sticky substance carelessly on a surface
Example
The children daubed paint all over the walls.
C1 noun /ˌdev.əˈtiː/

Devotee

Meaning
a person who is very interested in and enthusiastic about someone or something
Example
As a devotee of classical music, she attended every concert in the city.
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.
A2 noun /ˈdɪkʃəˌnɛri/

dictionary

Meaning
A reference book or electronic resource containing words, usually arranged alphabetically, with information about their meanings, pronunciations, etymologies, and usage.
Example
I looked up the word in the dictionary to understand its meaning.
C1 noun /ˈdrɪz.əl/

Drizzle

Meaning
light rain falling in very fine drops; a very light rainfall
Example
The gentle drizzle continued throughout the morning, making everything misty.
B1 noun ˌdemənˈstreɪʃənz

demonstrations

Meaning
The action or process of showing the existence or truth of something by giving proof or evidence.
Example
Demonstrations occurred on March 11.
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 noun /ˌdɪsɪˈpeɪʃən/

dissipation

Meaning
the process of disappearing or wasting; excessive indulgence in pleasure
Example
The dissipation of his fortune left him in poverty.
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.
C2 verb /dɪˈlæpɪdeɪt/

dilapidate

Meaning
To cause something, especially a building, to fall into ruin or disrepair.
Example
The abandoned house began to dilapidate over the years.
C2 verb /dɪˈdʒɛkt/

deject

Meaning
to make someone feel sad, depressed, or dispirited
Example
The news of his failure seemed to deject him deeply.
B1 noun ˈdɪdʒ.ɪ.təl tuːlz

digital tools

Meaning
Electronic software and applications used for learning and educational purposes.
Example
Schools are integrating digital tools to enhance learning.
C1 verb, noun /ˌdɪsɪˈluːʒən/

disillusion

Meaning
to cause someone to realize that something is not as good as they believed
Example
The scandal disillusioned many voters.
C2 verb /dɪˈmɜːr/

demur

Meaning
to raise doubts, objections, or show reluctance
Example
She agreed to help without demur.
C2 verb /dɪˈtruːd/

detrude

Meaning
To thrust or force something downward or outward.
Example
The violent waves detruded rocks from the cliff.
C2 noun /ˌdɪsəˈvaʊəl/

disavowal

Meaning
the denial of any responsibility, connection, or support
Example
The politician issued a firm disavowal of the controversial remarks.
B2 noun /dɛk/

deck

Meaning
A flat surface or platform, often on a ship or building.
Example
We enjoyed the sunset from the upper deck of the ferry.
B2 verb /ˈdɪkteɪt/

dictate

Meaning
to say words aloud for someone to write down; to give orders
Example
The boss dictates letters to his secretary.
C1 noun /draɪ fɪʃ/

Dry fish

Meaning
fish that has been preserved by drying in the sun or by other dehydration methods
Example
Dry fish is a popular preserved food in many coastal regions.
C1 verb /dɪˈfrɔːd/

defraud

Meaning
to illegally take money or valuables from someone by deception
Example
The company was accused of trying to defraud investors.
B2 noun /ˈdʌmi/

dummy

Meaning
a model or replica of a human used for practice, display, or testing; also a term for a foolish person
Example
The tailor used a dummy to display the dress.
C2 adjective /ˈdɛndrɔɪd/

dendroid

Meaning
tree-shaped or branching like a tree
Example
The coral has a dendroid structure.
C1 adjective /ˌdɪfəˈrɛnʃəl/

differential

Meaning
Relating to or showing a difference; involving a distinction.
Example
There is a differential treatment between the two groups.
C1 noun ˌdiː.sen.trə.laɪˈzeɪ.ʃən

decentralization

Meaning
The transfer of authority from central to local government.
Example
Decentralization promotes regional autonomy.
B2 verb /dɪˈfɜːr/

defer

Meaning
To postpone or delay; to yield to someone else's judgment or opinion.
Example
The meeting was deferred until next week.
A1 adjective /ˈdɪf.ər.ənt/

different

Meaning
Not the same as another; distinct or unlike.
Example
Her opinion was completely different from mine.
B2 noun daɪˈlem.ə

dilemma

Meaning
A situation in which a difficult choice has to be made between two or more alternatives.
Example
She faced a moral dilemma at work.
C2 adjective /dɪˈtɜːrmɪnət/

determinate

Meaning
having exact and definite limits or form
Example
The contract is for a determinate period of two years.
B1 noun /ˈdaɪəɡræm/

diagram

Meaning
a simplified drawing that shows the structure, relationship, or process of something
Example
The teacher explained the system using a clear diagram.