diabolical
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C1 adjective /ˌdaɪəˈbɒlɪkəl/

diabolical

diabolique
Meaning
Wicked, cruel, or outrageously bad; resembling the devil.
Example
The dictator’s diabolical rule brought misery to the nation.
Le régime diabolique du dictateur a apporté la misère à la nation.
C1 adjective /dɪˈlæpɪˌdeɪtɪd/

dilapidated

délabré
Meaning
Fallen into disrepair or ruin due to neglect or age.
Example
The family lived in a dilapidated house at the edge of town.
La famille vivait dans une maison délabrée au bord de la ville.
C1 adjective /dɪˈfɛnsəbəl/

defensible

défendable / justifiable
Meaning
Capable of being protected against attack or criticism; justifiable.
Example
Her decision was legally defensible.
Sa décision était légalement défendable.
C1 noun dɪˈfleɪʃən

deflation

déflation
Meaning
Reduction of the general level of prices in an economy.
Example
Deflation often leads to decreased consumer spending.
La déflation entraîne souvent une diminution des dépenses des consommateurs.
C1 noun /dɪˈfaɪəns/

defiance

défiance
Meaning
Open resistance or bold disobedience.
Example
The protest was an act of defiance against injustice.
La protestation était un acte de défiance contre l'injustice.
C1 noun /ˈdek.ə.dəns/

decadence

décadence
Meaning
Moral or cultural decline characterized by excessive indulgence in pleasure or luxury.
Example
The novel describes the decadence of the wealthy elite.
Le roman décrit la décadence de l'élite riche.
C1 noun /daɪˈsɛkʃən/

dissection

dissection
Meaning
the act of cutting apart or analyzing something in detail, especially a body or structure
Example
The dissection of the specimen revealed important details about its structure.
La dissection de l'échantillon a révélé des détails importants sur sa structure.
C1 adjective /ˈdɪzməl/

Dismal

sombre; déprimant; triste
Meaning
gloomy; depressing; causing sadness or despair
Example
The weather was dismal with heavy rain and dark clouds.
Le temps était sombre avec de fortes pluies et des nuages sombres.
C1 noun /dʌsk/

Dusk

crépuscule; tombée de la nuit
Meaning
the period of the day when daylight is fading; twilight
Example
They walked along the beach during dusk, watching the sunset.
Ils marchaient sur la plage pendant le crépuscule, regardant le coucher du soleil.
C1 verb /dɪˈfeɪs/

deface

défigurer
Meaning
to spoil the surface or appearance of something, especially by writing or drawing on it
Example
The vandals defaced the wall with graffiti.
Les vandales ont défiguré le mur avec des graffitis.
C1 adjective /ˈdaɪ.si/

dicey

risqué
Meaning
Risky or unpredictable; potentially dangerous.
Example
Investing in that company looks pretty dicey right now.
Investir dans cette entreprise semble assez risqué en ce moment.
C1 noun /dɪˈsɜːn.mənt/

discernment

discernement
Meaning
The ability to judge well or understand something correctly; keen insight.
Example
His discernment in business decisions made him successful.
Son discernement dans les décisions commerciales l'a rendu réussi.
C1 noun /ˈdɑː.mə.saɪl/

domicile

domicile
Meaning
A person's legal residence or permanent home.
Example
He declared Canada as his legal domicile.
Il a déclaré le Canada comme son domicile légal.
C1 noun ˌdiːˌrɛɡ.jʊˈleɪ.ʃən

deregulation

déréglementation
Meaning
The removal or reduction of government regulations in an economic sector.
Example
Deregulation has increased competition in the telecommunications sector.
La déréglementation a augmenté la concurrence dans le secteur des télécommunications.
C1 noun /ˈdiːviəns/

deviance

déviance
Meaning
Behavior that differs from accepted social or moral standards.
Example
The book studies deviance in urban youth culture.
Le livre étudie la déviance dans la culture urbaine des jeunes.
C1 adjective /dɪˈlɪriəs/

delirious

délirant
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.
Il était délirant de fièvre et murmurait des absurdités.
C1 adjective /dɪˈmɛntɪd/

demented

dément / irrationnel
Meaning
behaving irrationally due to mental illness or extreme excitement
Example
He looked demented after hearing the shocking news.
Il avait l'air dément après avoir entendu la nouvelle choquante.
C1 noun /ˈdæmpər/

damper

quelque chose qui réduit ou diminue la force, l'effet ou l'excitation
Meaning
something that reduces or lessens the force, effect, or excitement
Example
The cancellation of the trip put a damper on their enthusiasm.
L'annulation du voyage a réduit leur enthousiasme.
C1 adjective /dɪˈspɜːrst/

dispersed

dispersé
Meaning
Scattered or spread across a wide area.
Example
The dispersed population made it difficult to provide public services.
La population dispersée a rendu difficile la fourniture de services publics.
C1 verb /dɪˈɡreɪd/

degrade

dégrader
Meaning
To lower in dignity, quality, or value; to treat with disrespect or to deteriorate.
Example
Harsh words can degrade a person's confidence.
Les mots durs peuvent dégrader la confiance d'une personne.
C1 noun /ˈdaʊri/

dowry

dot
Meaning
Property or money brought by a bride to her husband at marriage.
Example
The dowry tradition is still followed in some cultures.
La tradition du dot est encore suivie dans certaines cultures.
C1 noun /dɪˈskrep.ən.si/

discrepancy

discrépance, différence, divergence
Meaning
A lack of compatibility or similarity between two or more facts.
Example
The audit revealed a discrepancy between the reported earnings and actual income.
L'audit a révélé une discrépance entre les bénéfices déclarés et les revenus réels.
C1 noun /ˌdev.əˈtiː/

Devotee

dévote; adepte
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.
En tant que dévote de la musique classique, elle assistait à chaque concert de la ville.
C1 noun ˈdaɪ.nə.sti

dynasty

dynastie
Meaning
A line of hereditary rulers of a country; a succession of people from the same family who play a prominent role in business, politics, or another field.
Example
The Ming dynasty ruled China for centuries.
La dynastie Ming a régné sur la Chine pendant des siècles.
C1 noun /dɪˈsiːt/

Deceit

tromperie; fraude; mensonge
Meaning
the action or practice of deceiving someone by concealing or misrepresenting the truth
Example
His deceit was discovered when the truth about his qualifications came to light.
Sa tromperie a été découverte lorsque la vérité sur ses qualifications a été révélée.
C1 verb /daɪˈɡrɛs/

digress

s'écarter temporairement du sujet principal
Meaning
To leave the main subject temporarily in speech or writing.
Example
The professor began to digress from the main topic of the lecture.
Le professeur a commencé à digresser du sujet principal de la conférence.
C1 adjective /dɪˈskriːt/

discrete

discret
Meaning
individually separate and distinct
Example
The course is divided into three discrete modules.
Le cours est divisé en trois modules discrets.
C1 adjective /dɪˈspɪrɪtɪd/

dispirited

abattu
Meaning
Having lost enthusiasm, hope, or confidence; dejected.
Example
After losing the match, the team looked dispirited.
Après avoir perdu le match, l'équipe semblait abattue.
C1 noun /ˈduːmz.deɪ/

Doomsday

le jour du jugement dernier; le jour de la fin du monde
Meaning
the last day of the world's existence; a time of catastrophic destruction
Example
The preacher spoke about doomsday and the importance of preparing spiritually.
Le prédicateur a parlé du jour du jugement dernier et de l'importance de se préparer spirituellement.
C1 adjective /dɪˈvaʊt/

devout

dévoué
Meaning
Deeply religious or sincere.
Example
He is a devout believer who prays every day.
Il est un croyant dévoué qui prie chaque jour.
C1 verb /ˈduːdəl/

doodle

gribouiller
Meaning
To draw or scribble absentmindedly, often while thinking about something else.
Example
She doodled flowers in the corner of her notebook during class.
Elle dessinait des fleurs dans le coin de son cahier pendant le cours.
C1 noun /dɪˈfɪʃ.ən.si/

Deficiency

déficience; manque; insuffisance
Meaning
a lack or shortage of something; inadequacy or insufficiency
Example
The doctor diagnosed a vitamin D deficiency in the patient's blood test.
Le médecin a diagnostiqué une carence en vitamine D lors du test sanguin du patient.
C1 noun /drɑːft/ (UK), /dræft/ (US)

draught

courant d air
Meaning
a current of cool air in a room or another confined space; also a portion of liquid, especially beer, served from a barrel or cask
Example
She closed the window to keep out the cold draught.
Elle a referme la fenetre pour ne pas laisser entrer le courant d air froid.
C1 noun /ˈderˌdevəl/

daredevil

courageux imprudent
Meaning
A person who enjoys doing dangerous or risky things.
Example
The stunt was performed by a famous daredevil.
L'acrobatie a été réalisée par un célèbre imprudent.
C1 adjective /ˈdjuːtɪfəl/

Dutiful

dévoué; respectueux; obéissant
Meaning
conscientiously fulfilling one's duty; obedient; respectful
Example
She is a dutiful daughter who always helps her parents.
Elle est une fille dévouée qui aide toujours ses parents.
C1 noun /draɪ ˈtʃɪl.i/

Dry Chilli

piment sec
Meaning
dried chili peppers used as spice for adding heat to food
Example
The recipe calls for two dry chillies to make it spicy.
La recette demande deux piments secs pour le rendre épicé.
C1 noun /djʊˈrɛs/

duress

contrainte
Meaning
threats, violence, or pressure used to force someone to do something
Example
She signed the contract under duress.
Elle a signé le contrat sous la contrainte.
C1 noun /deɪˈbɑː.kəl/

debacle

débâcle
Meaning
A sudden and ignominious failure; a fiasco.
Example
The company's poor management led to a financial debacle.
La mauvaise gestion de l'entreprise a conduit à un débâcle financier.
C1 noun /ˌdɛməˈlɪʃən/

demolition

démolition
Meaning
the act or process of destroying a building or structure
Example
The demolition of the old factory took several weeks.
La démolition de l'ancienne usine a pris plusieurs semaines.
C1 noun, adjective /dɪˈrɪvətɪv/

derivative

dérivé
Meaning
Something that is based on another source; in math, a measure of how a function changes.
Example
The film was criticized for being too derivative of earlier works.
Le film a été critiqué pour être trop dérivé des œuvres précédentes.
C1 noun /dɪˈsaɪ.pəl/

Disciple

disciple; partisan
Meaning
a follower and student of a teacher, leader, or philosopher; devoted follower
Example
The famous philosopher had many disciples who spread his teachings worldwide.
Le célèbre philosophe avait de nombreux disciples qui ont répandu ses enseignements dans le monde entier.
C1 noun dɪˈdʒɛnəˌreɪtɪv dɪˈzizɪz

degenerative diseases

maladies dégénératives
Meaning
Medical conditions that involve the deterioration or progressive decline of tissues, organs, or functions
Example
Degenerative diseases are common in an aging population.
Les maladies dégénératives sont courantes dans une population vieillissante.
C1 verb dɪˈsaɪ.fɚ

decipher

déchiffrer, traduire, interpréter
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.
Il a fallu des heures pour déchiffrer l'écriture ancienne.
C1 noun /ˈdɪm.pəl/

Dimple

fossette
Meaning
a small depression in the flesh, either one that exists permanently or one that forms when smiling
Example
Her charming dimples appeared whenever she smiled at the children.
Ses adorables fossettes apparaissaient chaque fois qu'elle souriait aux enfants.
C1 verb /dɪsˈbænd/

disband

dissoudre
Meaning
to break up and stop functioning as a group or organization
Example
The club decided to disband after twenty years of activity.
Le club a décidé de se dissoudre après vingt ans d'activité.
C1 verb /dɪˈsweɪd/

dissuade

dissuader
Meaning
To persuade someone not to do something.
Example
She tried to dissuade him from quitting his job.
Elle a essayé de le dissuader de quitter son travail.
C1 noun /ˈdɔːrˌkiːpər/

doorkeeper

portier
Meaning
A person whose job is to guard or manage the entrance of a building or room.
Example
The doorkeeper checked everyone’s passes before they entered the hall.
Le doorkeeper a vérifié les passes de tous avant qu'ils n'entrent dans la salle.
C1 noun /ˈded.lɑk/

Dead-lock

impasse; blocage
Meaning
a situation in which no progress is possible; complete standstill
Example
The negotiations reached a deadlock when neither side would compromise.
Les négociations ont atteint une impasse lorsque les deux parties ne voulaient pas faire de compromis.
C1 adjective /dɪˈbɪl.ɪ.teɪ.tɪŋ/

debilitating

affaiblissant
Meaning
Making someone or something weak and infirm.
Example
The disease had a debilitating effect on his health.
La maladie avait un effet affaiblissant sur sa santé.
C1 noun/verb /dɪsˈkwaɪət/

disquiet

inquiétude
Meaning
A feeling of worry or unease; to make someone feel anxious or uneasy.
Example
The strange silence filled the room with disquiet.
Le silence étrange a rempli la pièce d'inquiétude.
C1 verb dɪˈsɜːn

discern

distinguer
Meaning
To perceive or recognize something; to distinguish with difficulty by sight or with the other senses.
Example
He could barely discern the distant figure in the fog.
Il a à peine pu distinguer la silhouette lointaine dans le brouillard.
C1 noun /diːˈkrɪp.ʃən/

decryption

décryptage
Meaning
The process of converting encrypted data back into its original form so it can be understood.
Example
Hackers attempted decryption of classified data.
Les hackers ont tenté de décrypter des données classifiées.
C1 verb /dɪˈsɛm.ɪ.neɪt/

disseminate

diffuser
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.
Les réseaux sociaux aident à diffuser rapidement les informations.
C1 adjective /ˈdaʊ.ər/

dour

sévère
Meaning
relentlessly severe, stern, or gloomy in manner or appearance
Example
His dour expression made the meeting uncomfortable.
Son expression sévère rendait la réunion inconfortable.
C1 adjective, noun /ˈdɛrəlɪkt/

derelict

abandonné
Meaning
in poor condition due to neglect or disuse; a homeless or neglected person
Example
The old factory stood derelict for decades.
L'ancienne usine est restée abandonnée pendant des décennies.
C1 noun /dɪˈlɪriəm/

delirium

délire
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.
Le patient a éprouvé un délire après la chirurgie en raison des médicaments forts.
C1 adjective /ˈdaʊn.kæst/

downcast

abattu
Meaning
feeling sad, dejected, or with lowered eyes
Example
He looked downcast after hearing the bad news.
Il avait l'air abattu après avoir entendu la mauvaise nouvelle.
C1 noun /ˈdaɪhɑːrd/

diehard

fanatique
Meaning
A person who strongly resists change and remains loyal to a belief or cause.
Example
He is a diehard fan of classic rock music.
Il est un fanatique inconditionnel du rock classique.
C1 noun /dɪˈprɛsənt/

depressant

dépresseur
Meaning
A drug that reduces functional or nervous activity in the body.
Example
Alcohol acts as a depressant on the central nervous system.
L'alcool agit comme un dépresseur sur le système nerveux central.
C1 adjective /daɪər/

Dire

grave; urgent; terrible
Meaning
extremely serious; urgent; terrible
Example
The country is facing a dire economic crisis.
Le pays fait face à une grave crise économique.
C1 noun /ˈdɒɡmə/

dogma

dogme
Meaning
A principle or set of principles laid down by an authority as incontrovertibly true.
Example
The religious leader strictly adhered to traditional dogma.
Le leader religieux s'est strictement conformé au dogme traditionnel.
C1 adjective /dɪˈsɪd.ju.əs/

deciduous

décidu
Meaning
Referring to trees that shed their leaves seasonally, typically in autumn.
Example
Oak and maple trees are deciduous, shedding leaves in autumn.
Les chênes et les érables sont des arbres décidues, perdant leurs feuilles en automne.
C1 adjective dɪ ˈskrɛʃ.ən.er.i

discretionary

discrétionnaire
Meaning
Available for use at the discretion of the user; not required or mandatory.
Example
He set aside some discretionary income for travel.
Il a mis de côté un revenu discrétionnaire pour voyager.
C1 noun /ˈdrʌdʒəri/

drudgery

travail pénible et monotone
Meaning
Hard, menial, or dull work.
Example
She wanted to escape the drudgery of her daily routine.
Elle voulait échapper à la routine monotone de sa journée.
C1 verb /dɪsˈsætɪsfaɪ/

dissatisfy

décevoir
Meaning
to fail to please or meet expectations; to make someone unhappy
Example
The poor service dissatisfies many customers.
Le mauvais service déçoit de nombreux clients.
C1 noun ˈdɪl.ɪ.dʒəns

diligence

diligence
Meaning
Careful and persistent work or effort.
Example
Success requires patience and diligence.
Le succès nécessite de la patience et de la diligence.
C1 verb /dɪˈbɑːr/

debar

interdire
Meaning
To officially prevent someone from doing something.
Example
He was debarred from entering the competition due to cheating.
Il a été interdit d'entrer dans la compétition en raison de la triche.
C1 noun dɛkˈstɛr.ɪ.ti

dexterity

dextérité
Meaning
Skill in performing tasks, especially with the hands; mental skill or adroitness.
Example
His dexterity in playing the piano amazed the audience.
Sa dextérité à jouer du piano a étonné le public.
C1 noun dɪˈtɜː.mɪ.nənt

determinant

facteur déterminant
Meaning
A factor that decisively affects the nature or outcome of something.
Example
Education is a key determinant of success.
L'éducation est un facteur déterminant du succès.
C1 noun /dɪˈten.ʃən/

Detention

détention; emprisonnement temporaire
Meaning
the action of detaining someone or being detained in official custody
Example
The student received detention for repeatedly disrupting the class.
L'étudiant a reçu une détention pour avoir perturbé la classe à plusieurs reprises.
C1 adjective /dɪsˈrɛpjətəbl̩/

disreputable

discrédité
Meaning
having a bad reputation; not considered respectable or trustworthy
Example
The journalist avoided staying in the disreputable part of town.
Le journaliste a évité de séjourner dans le quartier discrédité de la ville.
C1 noun /ˌdɛsɪˈmeɪʃən/

decimation

décimation
Meaning
The act of destroying or killing a large proportion of something.
Example
The decimation of the city left thousands homeless.
La décimation de la ville a laissé des milliers de sans-abri.
C1 noun /dɪˈfɔː.mə.ti/

Deformity

déformation; malformation physique
Meaning
a distorted or unnatural shape or form; physical malformation
Example
The accident caused a permanent deformity in his left hand.
L'accident a causé une déformation permanente dans sa main gauche.
C1 noun ˌdɪs.ɪnˈfek.ʃən

disinfection

désinfection
Meaning
The process of destroying harmful microorganisms to prevent infection.
Example
Kitchen appliances require frequent disinfection.
Les appareils de cuisine nécessitent une désinfection fréquente.
C1 verb /ˈdrɪbəl/

dribble

goutte / dribbler le ballon avec de petits coups
Meaning
to let liquid flow slowly in drops or to move a ball skillfully with repeated small kicks or bounces
Example
The baby dribbled milk on his shirt.
Le bébé a renversé du lait sur sa chemise.
C1 noun /ˈdeɪˌbreɪk/

daybreak

aurore
Meaning
The time in the morning when daylight first appears; dawn.
Example
They set out on their journey at daybreak.
Ils ont commencé leur voyage à l'aube.
C1 noun ˌdɪm.ɪˈnjuː.ʃən

diminution

réduction
Meaning
A reduction in the size, extent, or importance of something; decrease.
Example
There has been a diminution in air pollution.
Il y a eu une diminution de la pollution de l'air.
C1 adjective /dɪˈɡreɪdɪd/

degraded

dégradé
Meaning
Reduced in quality, dignity, or condition.
Example
The villagers were forced to live in degraded conditions.
Les villageois ont été forcés de vivre dans des conditions dégradées.
C1 noun ˈdɛtrɪ.mənt

detriment

dommage, préjudice, détriment
Meaning
Harm, damage, impairment.
Example
Smoking is a detriment to health.
Fumer est un détriment pour la santé.
C1 noun /ˈdɛspɒt/

despot

despote
Meaning
a ruler with absolute power, often ruling in a cruel or oppressive way
Example
The despot ruled the nation with fear and violence.
Le despote a dirigé la nation avec la peur et la violence.
C1 noun dɪˈspær.ə.ti

disparity

disparité
Meaning
A great difference or inequality.
Example
Disparity between countries must be reduced.
La disparité entre les pays doit être réduite.
C1 noun /dɪˈfen.dənt/

Defendant

défendeur
Meaning
an individual, company, or institution sued or accused in a court of law
Example
The defendant pleaded not guilty to all charges brought against him.
Le défendeur a plaidé non coupable de toutes les accusations portées contre lui.
C1 verb/adjective /dɪˈdʒɛnəreɪt/

degenerate

dégénérer
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.
L'empire autrefois prospère a commencé à dégénérer en chaos.
C1 noun /ˈdæn.drʌf/

Dandruff

pellicules
Meaning
small white or grey flakes of dead skin that form on the scalp and fall from the hair
Example
He used a special shampoo to treat his persistent dandruff problem.
Il a utilisé un shampooing spécial pour traiter son problème persistant de pellicules.
C1 verb /ˌdɪsɪmˈbɑːrk/

disembark

débarquer
Meaning
To leave a ship, aircraft, or other vehicle.
Example
The passengers disembarked from the plane after landing.
Les passagers sont descendus de l'avion après l'atterrissage.
C1 noun /ˈdɪŋɡi/

dinghy

canot
Meaning
a small boat, often carried or towed by a larger vessel, used for short trips or as a lifeboat
Example
They rowed the dinghy back to the yacht.
Ils ont ramé le canot jusqu'au yacht.
C1 verb /dɪˈpoʊz/

depose

déposer
Meaning
to remove someone from office or power, especially suddenly and forcefully
Example
The rebels managed to depose the dictator after years of unrest.
Les rebelles ont réussi à déposer le dictateur après des années de troubles.
C1 verb /ˌdɪsəˈlaʊ/

disallow

interdire
Meaning
to refuse to allow or accept something
Example
The referee disallowed the goal for offside.
L'arbitre a disallowé le but pour hors-jeu.
C1 noun /dɪˈmaɪz/

demise

décès / fin
Meaning
Death or end of something, especially the end of an institution or system.
Example
The sudden demise of the company shocked investors.
La chute soudaine de l'entreprise a choqué les investisseurs.
C1 verb /dɪsˈkwɑːlɪfaɪ/

disqualify

disqualifier
Meaning
to officially prevent someone from participating or being eligible
Example
The referee decided to disqualify the player for cheating.
L'arbitre a décidé de disqualifier le joueur pour tricher.
C1 noun /ˌdiː.kɒmpəˈzɪʃən/

decomposition

décomposition
Meaning
the process of decaying or breaking down into simpler parts
Example
The decomposition of leaves enriches the soil.
La décomposition des feuilles enrichit le sol.
C1 noun /dɪˈspɜːrʒən/

dispersion

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.
La dispersion des graines par le vent aide les plantes à se reproduire.
C1 verb /ˌdɪskənˈsɜːrt/

disconcert

déconcerter
Meaning
To unsettle, confuse, or disturb the composure of someone.
Example
The sudden change of plans disconcerted the team.
Le changement soudain de plans a déconcerté l'équipe.
C1 verb /diːm/

deem

considérer, juger
Meaning
to regard or consider in a specified way
Example
The project was deemed a success by the board.
Le projet a été jugé un succès par le conseil.
C1 noun /dɪˈkriː/

Decree

décret
Meaning
an official order issued by a legal authority; a judicial decision or edict
Example
The king issued a decree that all citizens must pay additional taxes.
Le roi a émis un décret stipulant que tous les citoyens doivent payer des taxes supplémentaires.
C1 verb /dɪˈpriːʃieɪt/

depreciate

déprécier
Meaning
to reduce in value over time
Example
Cars tend to depreciate quickly in their first few years.
Les voitures ont tendance à se déprécier rapidement dans leurs premières années.
C1 verb /dɪˈmoʊt/

demote

rétrograder
Meaning
to reduce to a lower rank or position
Example
The manager decided to demote the employee for poor performance.
Le gestionnaire a décidé de rétrograder l'employé pour mauvaise performance.
C1 noun ˈdɪskɔrd

discord

désaccord
Meaning
Disagreement or conflict between people or ideas.
Example
Discord among people disrupts societal stability.
Le désaccord entre les gens perturbe la stabilité sociale.
C1 noun /ˈdæɡ.ər/

Dagger

dague
Meaning
a short knife with a pointed blade used as a weapon
Example
The ancient warrior carried a silver dagger.
Le guerrier ancien portait une dague en argent.
C1 noun /dɪˈfjuːʒən/

diffusion

diffusion
Meaning
the spreading of something more widely or the movement of particles from high to low concentration
Example
The diffusion of information on social media is rapid.
La diffusion de l'information sur les réseaux sociaux est rapide.
C1 noun /dɪˈvaɪzər/

divisor

diviseur
Meaning
A number by which another number is divided.
Example
In the equation 12 ÷ 3, the number 3 is the divisor.
Dans l'équation 12 ÷ 3, le nombre 3 est le diviseur.
C1 noun /dɪsˈɒn.ər/

Dishonour

honte
Meaning
a state of shame or disgrace; lack of honor or integrity; failure to fulfill obligations
Example
Breaking his promise brought dishonour to his name and family legacy.
Rompre sa promesse a apporté la honte à son nom et à l'héritage de sa famille.
C1 noun /ˈdeɪtəm/ or /ˈdætəm/

datum

donnée
Meaning
a single piece of information; a fact used as a basis for reasoning or calculation
Example
Each datum in the survey was carefully analyzed.
Chaque donnée dans l'enquête a été soigneusement analysée.
C1 noun /ˌdiːˈmer.ɪt/

Demerit

fauté; inconvénient; marque pour une faute ou une infraction
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.
L'étudiant a reçu un démérite pour être arrivé en retard en classe à plusieurs reprises.
C1 noun ˌdjʊə.rəˈbɪl.ə.ti

durability

durabilité
Meaning
The ability to withstand wear, pressure, or damage; hard-wearing.
Example
The durability of materials affects performance.
La durabilité des matériaux affecte la performance.
C1 noun /djuːn/

dune

dune
Meaning
A hill or ridge of sand formed by the wind, usually found in deserts or near beaches.
Example
The children played on the sand dune by the beach.
Les enfants jouaient sur la dune de sable près de la plage.
C1 noun /dɪsˈlɛksiə/

dyslexia

dyslexie
Meaning
A learning disorder characterized by difficulty reading due to problems identifying speech sounds and decoding words.
Example
The teacher used special methods to help the student with dyslexia.
L'enseignant a utilisé des méthodes spéciales pour aider l'élève atteint de dyslexie.
C1 adjective /ˌdɪktəˈtɔːriəl/

dictatorial

dictatorial
Meaning
Having or showing a tendency to tell people what to do in an autocratic way.
Example
His dictatorial style made him unpopular among colleagues.
Son style dictatorial le rendait impopulaire parmi ses collègues.
C1 verb /daɪˈvʌldʒ/

divulge

divulguer
Meaning
to make known something private, secret, or previously unknown
Example
She refused to divulge the source of her information.
Elle a refusé de divulguer la source de ses informations.
C1 noun /ˌdaɪəˈrɑːmə/

diorama

diorama
Meaning
a three-dimensional model representing a scene, often with miniature figures
Example
The museum displayed a diorama of an ancient village.
Le musée a exposé un diorama d'un village ancien.
C1 noun /ˌdɪfəˈrɛnʃɪˈeɪʃən/

differentiation

différenciation, distinction
Meaning
The action or process of differentiating or distinguishing between things.
Example
Differentiation from competitors can create a unique market position.
La différenciation des concurrents peut créer une position unique sur le marché.
C1 noun /dɪˈmiːnər/

demeanour

comportement
Meaning
a person's outward behavior or appearance
Example
Her calm demeanour impressed everyone during the meeting.
Son comportement calme a impressionné tout le monde lors de la réunion.
C1 verb /dɪˈsɛkt/

dissect

disséquer
Meaning
to cut apart an animal, plant, or other organism to study its internal parts; to analyze something in detail
Example
In biology class, students had to dissect a frog to learn about its anatomy.
En cours de biologie, les étudiants ont dû disséquer une grenouille pour apprendre son anatomie.
C1 verb /dɪsˈmæntəl/

dismantle

démanteler
Meaning
to take apart; to remove or destroy the parts of
Example
Workers will dismantle the old bridge next month.
Les travailleurs démantèleront le vieux pont le mois prochain.
C1 adjective /ˈdiːviəs/

devious

sournois
Meaning
Skillful at using underhanded tactics to achieve goals; not straightforward.
Example
He used a devious plan to gain control of the company.
Il a utilisé un plan sournois pour prendre le contrôle de l'entreprise.
C1 noun /ˌdɪs.kʌl.əˈreɪ.ʃən/

discoloration

décoloration
Meaning
The process of changing or losing color; fading.
Example
Sun exposure causes discoloration of fabrics.
L'exposition au soleil provoque la décoloration des tissus.
C1 verb /doʊt/

dote

gâter
Meaning
to show excessive love or fondness for someone or something
Example
She tends to dote on her grandchildren.
Elle a tendance à gâter ses petits-enfants.
C1 noun/verb /dɛnt/

dent

bosse
Meaning
a small hollow mark on the surface of something; to make a small hollow mark
Example
The accident left a dent in the car door.
L'accident a laissé une bosse dans la porte de la voiture.
C1 noun /ˈdeɪ.li.ə/

Dahlia

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.
Elle a planté des dahlias colorés dans son jardin l'été dernier.
C1 verb /ˈdæmpən/

dampen

humecter, atténuer
Meaning
to make something slightly wet; to make something less strong, active, or intense
Example
The rain dampened the excitement of the outdoor concert.
La pluie dampenée l'excitation du concert en plein air.
C1 adjective /diːˈsɛntrəlaɪzd/

decentralized

décentralisé
Meaning
Controlled by several local offices or authorities rather than one single one.
Example
The decentralized system allowed for more control at local levels.
Le système décentralisé a permis un plus grand contrôle au niveau local.