debased
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C1 adjective /dɪˈbeɪst/

debased

dégradé
Meaning
having lost quality, value, or moral character
Example
The debased currency lost the trust of the people.
La monnaie dégradée a perdu la confiance des gens.
C1 verb /dɪˈfjuːz/

diffuse

diffuser
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.
L'odeur du pain frais s'est diffusée dans toute la maison.
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 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 ˌdɪdʒɪˈnɛəreɪʃən

degeneration

dégénérescence
Meaning
The process of decline or deterioration in structure or function.
Example
The degeneration of brain cells leads to cognitive decline.
La dégénérescence des cellules cérébrales conduit à un déclin cognitif.
C1 noun /ˌdɒmɪˈneɪʃən/

domination

domination
Meaning
the exercise of control or influence over someone or something
Example
The empire sought domination over its neighbors.
L'empire cherchait à exercer sa domination sur ses voisins.
C1 noun /ˌdɜːrməˈtɑːlədʒɪst/

dermatologist

dermatologue
Meaning
A doctor who specializes in the treatment of skin diseases.
Example
She consulted a dermatologist for her skin allergy.
Elle a consulté un dermatologue pour son allergie à la peau.
C1 verb /druːp/

droop

pencher
Meaning
to bend or hang downward; to become weak or tired
Example
The flowers began to droop in the heat.
Les fleurs ont commencé à se pencher sous la chaleur.
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 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 /ˈdʊr.i.ən/

Durian

durian
Meaning
a large spiky tropical fruit known for its strong smell and creamy custard-like flesh
Example
Durian is known as the king of fruits in Southeast Asia despite its pungent odor.
Le durian est connu comme le roi des fruits en Asie du Sud-Est malgré son odeur piquante.
C1 noun /dɪsˈsɜːrvɪs/

disservice

dommage
Meaning
A harmful action; something that does damage rather than help.
Example
Spreading false information is a disservice to the community.
Diffuser de fausses informations est un dommage pour la communauté.
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 /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 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 verb /dɪˈmiːn/

demean

dévaloriser
Meaning
to cause someone to lose dignity or respect
Example
The manager demeaned his employees with rude remarks.
Le gestionnaire a dévalorisé ses employés avec des remarques grossières.
C1 adjective deft

deft

habile
Meaning
Neatly skillful and quick in one's movements; dexterous and adroit.
Example
The artist's deft hands created a masterpiece.
Les mains habiles de l'artiste ont créé une œuvre d'art.
C1 verb /daɪˈluːt/

dilute

diluer
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.
Vous devez diluer le jus avec de l'eau avant de le servir aux enfants.
C1 verb /dɪˈsɛləˌreɪt/

decelerate

ralentir
Meaning
to reduce speed; to slow down
Example
The car began to decelerate as it approached the traffic light.
La voiture a commencé à ralentir à l'approche du feu de circulation.
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 verb /dɪsˈpærɪdʒ/

disparage

dénigrer
Meaning
to criticize someone or something in a way that shows a lack of respect
Example
It is unfair to disparage people for their opinions.
Il est injuste de dénigrer les gens pour leurs opinions.
C1 verb, noun /dɪsˈkrɛdɪt/

discredit

discréditer
Meaning
To harm the reputation of someone or something; loss of respect or credibility.
Example
The scandal discredited the politician in the eyes of the public.
Le scandale a discrédité le politicien aux yeux du public.
C1 adjective /dɪˈmɒnstrətɪv/

demonstrative

expressif
Meaning
openly showing feelings, especially affection or emotion
Example
She was very demonstrative with her affection towards her friends.
Elle était très expressive avec son affection envers ses amis.
C1 verb /ˈdɛsɪmeɪt/

decimate

détruire
Meaning
To destroy or kill a large proportion of something.
Example
The wildfire decimated the forest.
L'incendie a ravagé la forêt.
C1 noun /ˈdɛmənˌstreɪtər/

demonstrator

démonstrateur, manifestant
Meaning
a person who shows how something works or takes part in a public protest
Example
The demonstrators marched peacefully through the city streets.
Les manifestants ont défilé pacifiquement dans les rues de la ville.
C1 noun /ˈdɛspətɪzəm/

despotism

despotisme
Meaning
absolute power exercised in a cruel and oppressive way
Example
The people revolted against the era of despotism.
Le peuple s'est révolté contre l'ère du despotisme.
C1 noun /diːˌtɒksɪfɪˈkeɪʃən/

detoxification

détoxification
Meaning
The process of removing toxic substances from a living organism.
Example
Detoxification helps to cleanse the body of harmful substances.
La détoxification aide à nettoyer le corps des substances nuisibles.
C1 verb /daʊs/

douse

éteindre / verser
Meaning
to pour liquid over; to extinguish a fire or light
Example
Firefighters doused the flames with water.
Les pompiers ont éteint les flammes avec de l'eau.
C1 adjective /dɪˈmɒnstrəbl/

demonstrable

démontrable
Meaning
clearly able to be shown or proven
Example
There was demonstrable evidence that he was innocent.
Il y avait des preuves démontrables qu'il était innocent.
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 noun /ˌdiːpɔːrˈteɪʃən/

deportation

déportation
Meaning
The act of expelling a foreigner from a country.
Example
The deportation of hundreds of workers sparked international criticism.
La déportation de centaines de travailleurs a suscité des critiques internationales.
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 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 /ˈdwɪndlɪŋ/

dwindling

diminution
Meaning
Gradually reducing in number, size, or strength.
Example
The villagers relied on dwindling water supplies.
Les villageois dépendaient des réserves d'eau en diminution.
C1 noun /draɪ fɪʃ/

Dry fish

poisson séché
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.
Le poisson séché est un aliment conservé populaire dans de nombreuses régions côtières.
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 adjective /dɪˈfɪʃənt/

Deficient

déficient
Meaning
not having enough of a specified quality or ingredient; lacking or inadequate
Example
His diet was deficient in essential vitamins.
Son régime était déficient en vitamines essentielles.
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 /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 verb /dɪˈteɪn/

detain

détenir
Meaning
to keep someone from proceeding; to hold back, especially by official authority
Example
The police detained the suspect for questioning.
La police a détenu le suspect pour l'interroger.
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 verb /diːˈkoʊd/

decode

décoder
Meaning
to convert a coded message into a readable form; to interpret meaning
Example
The software can decode the hidden message within seconds.
Le logiciel peut décoder le message caché en quelques secondes.
C1 verb /dɪsˈɡrʌntl/

disgruntle

mécontenter
Meaning
to make someone dissatisfied or discontented
Example
The unfair treatment disgruntled the workers.
Le traitement injuste a mécontenté les travailleurs.
C1 verb /dɪsˈɑːrm/

disarm

désarmer
Meaning
to take weapons away from someone; to make someone feel less hostile
Example
The soldiers were ordered to disarm the rebels.
Les soldats ont été ordonnés de désarmer les rebelles.
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 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 /ˈdɛməɡɒɡ/

demagogue

leader démagogue
Meaning
A political leader who seeks support by appealing to popular desires and prejudices rather than by using rational argument.
Example
The crowd was swayed by the fiery speeches of the demagogue.
La foule a été influencée par les discours enflammés du leader démagogue.
C1 verb /dɪˈraɪd/

deride

ridiculiser
Meaning
to mock or ridicule someone or something
Example
The critics derided the new movie for its poor script.
Les critiques ont ridiculisé le nouveau film pour son mauvais scénario.
C1 noun /ˈdɪsənˌtɛri/

dysentery

maladie intestinale (diarrhée avec sang et mucus)
Meaning
An infection of the intestines resulting in severe diarrhea with blood and mucus.
Example
Many soldiers suffered from dysentery during the war.
Beaucoup de soldats ont souffert de dysenterie pendant la guerre.
C1 verb /dɪˈmɔrəˌlaɪz/

demoralize

démoraliser
Meaning
to cause someone to lose confidence or hope
Example
The constant criticism demoralized the young athlete.
La critique constante a démoralisé le jeune athlète.
C1 verb /dɪˈsɛnt/

dissent

désapprouver
Meaning
To hold or express opinions that are different from those officially accepted.
Example
Several members dissented from the majority decision.
Plusieurs membres ont exprimé un désaccord avec la décision majoritaire.
C1 verb /dɪˈkraɪ/

decry

dénoncer
Meaning
to publicly criticize or express strong disapproval of something
Example
Many activists decry the destruction of the rainforest.
De nombreux activistes dénoncent la destruction de la forêt tropicale.
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 adjective /ˈdɛkədənt/

decadent

décadent, luxueux
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.
La fête était remplie de luxe décadent et d'excès.
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 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 noun /deɪˈtɑːnt/

detente

détente
Meaning
the easing of hostility or strained relations, especially between countries
Example
The two nations worked toward detente after decades of conflict.
Les deux nations ont travaillé vers la détente après des décennies de conflit.
C1 verb /dɪˈflɛkt/

deflect

détourner / éviter
Meaning
to cause something to change direction; to avoid answering directly
Example
The shield deflected the incoming arrow.
Le bouclier a dévié la flèche entrante.
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 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 adjective /dɪˈsiːtfəl/

deceitful

trompeur
Meaning
Deliberately misleading or dishonest.
Example
She gave a deceitful answer to hide the truth.
Elle a donné une réponse trompeuse pour cacher la vérité.
C1 noun /ˌdɪspəˈzɪʃən/

disposition

disposition
Meaning
A person's usual attitude or temperament; arrangement or tendency.
Example
She has a cheerful disposition despite the difficulties.
Elle a une disposition joyeuse malgré les difficultés.
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 verb /dɪˈluːd/

delude

tromper
Meaning
To mislead someone into believing something that is not true.
Example
He deluded himself into thinking he could win the race without training.
Il s'est trompé lui-même en pensant qu'il pouvait gagner la course sans s'entraîner.
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 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 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 /dɪˈspɛns/

dispense

distribuer
Meaning
To distribute or provide something, especially in portions.
Example
The machine dispenses clean drinking water.
La machine distribue de l'eau potable propre.
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 /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 verb /dɪˈzɪst/

desist

cesser
Meaning
to stop doing something, especially an action considered wrong or undesirable
Example
The judge ordered the company to desist from unfair practices.
Le juge a ordonné à l'entreprise de cesser les pratiques injustes.
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 /dɪˈrɪʒən/

derision

mépris
Meaning
Contemptuous ridicule or mockery.
Example
His ideas were greeted with derision by the audience.
Ses idées ont été accueillies avec mépris par le public.
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 adjective /ˈdesələt/

Desolate

désert; solitaire; stérile
Meaning
deserted; lonely; barren
Example
The abandoned village looked desolate and empty.
Le village abandonné avait l'air désert et vide.
C1 adjective /dɪsˈdʒɔɪntɪd/

disjointed

désorganisé
Meaning
Lacking order, coherence, or connection; disconnected.
Example
The movie felt disjointed and hard to follow.
Le film semblait désorganisé et difficile à suivre.
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 /dɪˈfɛkʃən/

defection

défection
Meaning
The act of abandoning one’s country, cause, or group in favor of another.
Example
The politician’s defection shocked his supporters.
La défection du politicien a choqué ses partisans.
C1 noun /ˈdɛdlɒk/

deadlock

impasse
Meaning
a situation in which progress is impossible because of disagreement
Example
Negotiations reached a deadlock after neither side agreed to compromise.
Les négociations ont atteint un impasse après que les deux parties aient refusé de faire des compromis.
C1 adjective /ˈdek.stər.əs/

dexterous

habile
Meaning
Showing or having skill, especially with the hands; mentally adroit and skillful.
Example
A dexterous programmer can write complex codes effortlessly.
Un programmeur habile peut écrire des codes complexes sans effort.
C1 noun ˈdɪk.ʃən

diction

prononciation et choix des mots
Meaning
The style of pronunciation and word choice in speaking or writing.
Example
A strong diction enhances communication skills.
Une forte diction améliore les compétences en communication.
C1 verb /dɪˈpɔːrt/

deport

déporter
Meaning
To expel a foreigner from a country, usually for legal or political reasons.
Example
The government decided to deport the illegal immigrants.
Le gouvernement a décidé de déporter les immigrés illégaux.
C1 verb /dɪˈspɛl/

dispel

dissiper
Meaning
to make a doubt, feeling, or belief disappear
Example
The teacher's explanation dispelled the students' confusion.
L'explication de l'enseignant a dissipé la confusion des élèves.
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 /dɪˈsɜːrnəbl/

discernible

discernable
Meaning
able to be seen, recognized, or understood
Example
There was a discernible change in his behavior.
Il y a eu un changement discernable dans son comportement.
C1 adjective dɪˈskrɪmɪnətɔːri

discriminatory

discriminatoire
Meaning
Making or showing an unfair or prejudicial distinction between different categories of people or things.
Example
Discriminatory policies triggered protests.
Les politiques discriminatoires ont déclenché des protestations.
C1 noun ˌdɪs.æmˌbɪɡ.juˈeɪ.ʃən

disambiguation

désambiguïsation
Meaning
The removal of ambiguity by making something clear and unambiguous.
Example
The AI system applies disambiguation to refine text understanding.
Le système IA applique la disambiguation pour affiner la compréhension du texte.
C1 noun, adjective /dɪˈfiːtɪst/

defeatist

défaitiste
Meaning
A person who expects or is excessively ready to accept failure; showing a tendency to expect defeat.
Example
His defeatist attitude discouraged the rest of the team.
Son attitude défaitiste a découragé le reste de l'équipe.
C1 verb /dɪˈfrɔːd/

defraud

frauder
Meaning
to illegally take money or valuables from someone by deception
Example
The company was accused of trying to defraud investors.
L'entreprise a été accusée d'avoir tenté de frauder les investisseurs.
C1 noun /dɪˈkɔː.rəm/

Decorum

décorum; bienséance; dignité
Meaning
behavior in keeping with good taste and propriety; dignified and appropriate conduct
Example
The diplomat maintained perfect decorum throughout the heated negotiations.
Le diplomate a maintenu un décorum parfait tout au long des négociations animées.
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 noun /dɪsˈɪntrəst/

disinterest

désintérêt
Meaning
lack of interest or concern
Example
His disinterest in the project was obvious.
Son désintérêt pour le projet était évident.
C1 noun /ˈdɛljuːdʒ/

deluge

inondation
Meaning
A severe flood; an overwhelming quantity of something.
Example
The town was hit by a deluge of rain in just a few hours.
La ville a été frappée par un déluge de pluie en quelques heures seulement.
C1 verb /ˈdæb.əl/

dabble

tâtonner
Meaning
To take part in an activity in a casual or superficial way.
Example
He dabbled in painting during his college days.
Il a dabblé dans la peinture pendant ses années universitaires.
C1 verb /dəˈmɛstɪkeɪt/

domesticate

domestiquer
Meaning
to tame an animal for use by humans; to adapt something for domestic use
Example
Humans domesticated dogs thousands of years ago.
Les humains ont domestiqué les chiens il y a des milliers d'années.
C1 adjective dɒɡˈmæt.ɪk

dogmatic

dogmatique
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.
Son approche dogmatique de la politique a rendu les discussions difficiles.
C1 noun ˌdaɪvɜːsɪfɪˈkeɪʃən

diversification

diversification
Meaning
The practice of spreading investments across various assets or sectors to reduce risk.
Example
Diversification helps to reduce investment risk.
La diversification aide à réduire le risque d'investissement.
C1 verb /dɪˈdjuːs/

deduce

déduire
Meaning
to reach a conclusion by reasoning or inference
Example
From the evidence, the detective deduced that the suspect was lying.
À partir des preuves, le détective a déduit que le suspect mentait.
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 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 /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 verb /diːˈfjuːz/

defuse

désamorcer
Meaning
To make a situation less dangerous, tense, or explosive; to remove a fuse from a bomb.
Example
The negotiator helped defuse the tense situation.
Le négociateur a aidé à désamorcer la situation tendue.
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 adjective draʊt rɪˈzɪs.tənt

drought-resistant

résistant à la sécheresse
Meaning
Able to survive and grow despite limited water availability or drought conditions.
Example
Drought-resistant crops can survive in arid conditions.
Les cultures résistantes à la sécheresse peuvent survivre dans des conditions arides.
C1 verb /dɪsˈkʌlər/

discolor

décolorer
Meaning
to change color, especially in a way that spoils the original appearance
Example
The fabric began to discolor after being left in the sun.
Le tissu a commencé à se décolorer après avoir été laissé au soleil.
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 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 /ˈdɪs.ɪ.peɪt/

dissipate

disparaître progressivement
Meaning
To disappear or cause to disappear gradually.
Example
The tension in the room slowly dissipated.
La tension dans la pièce a lentement disparu.
C1 adjective /ˈdɪn.dʒi/

Dingy

sale et sombre; de couleur terne
Meaning
dark and dirty; gloomy; dull in color
Example
The old building had dingy walls that needed painting.
Le vieux bâtiment avait des murs sales qui avaient besoin d'être peints.
C1 verb /dɪˈfeɪm/

defame

diffamer
Meaning
to harm someone's reputation by spreading false information
Example
He was defamed by malicious rumors.
Il a été diffamé par des rumeurs malveillantes.
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 verb /ˈdɛprɪˌkeɪt/

deprecate

déprécier
Meaning
to express disapproval of something
Example
The teacher deprecated the use of slang in academic essays.
Le professeur a déprécié l'utilisation de l'argot dans les essais académiques.
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 diːˈsɛn.sɪ.taɪz

desensitize

désensibiliser
Meaning
To make someone less sensitive or reactive to something through repeated exposure.
Example
Constant exposure to violence can desensitize people.
Une exposition constante à la violence peut désensibiliser les gens.
C1 noun/verb /dɪsˈdeɪn/

disdain

mépris
Meaning
The feeling that someone or something is unworthy of respect; to regard with contempt.
Example
She looked at the messy room with open disdain.
Elle regarda la chambre en désordre avec du mépris.
C1 verb /dɪˈplɔːr/

deplore

déplorer
Meaning
to feel or express strong disapproval of something; to regret deeply
Example
Many people deplore the violence shown on television.
Beaucoup de gens déplorent la violence montrée à la télévision.
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 /daɪˈvɜː.ʃən/

Diversion

détournement
Meaning
the action of turning something aside from its course; an activity that diverts the mind
Example
The road closure forced a diversion through the countryside for all travelers.
La fermeture de la route a forcé un détour à travers la campagne pour tous les voyageurs.
C1 noun /ˌdɪs.ɪˈluː.ʒən.mənt/

disillusionment

désillusion
Meaning
A feeling of disappointment resulting from the discovery that something is not as good as one believed it to be.
Example
Many people experience disillusionment after unrealistic expectations.
Beaucoup de gens ressentent de la désillusion après des attentes irréalistes.
C1 verb /dɪˈfaɪl/

defile

profaner
Meaning
to pollute, corrupt, or make dirty
Example
The river was defiled by industrial waste.
La rivière a été profanée par les déchets industriels.
C1 adjective /dɪsˈsɪmɪlər/

dissimilar

différent
Meaning
Not alike; different.
Example
Though they are twins, their personalities are dissimilar.
Bien qu'ils soient jumeaux, leurs personnalités sont différentes.