averse
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C1 adjective /əˈvɜːrs/

averse

réticent
Meaning
having a strong dislike of or opposition to something
Example
He was averse to taking unnecessary risks.
Il était réticent à prendre des risques inutiles.
C1 adjective /əˈkʌlt/

occult

occultes
Meaning
Relating to mysterious, supernatural, or magical powers and practices.
Example
She had always been fascinated by the occult and its hidden knowledge.
Elle a toujours été fascinée par l'occulte et sa connaissance cachée.
C1 noun /ˈhɪpnətɪzəm/

hypnotism

hypnotisme
Meaning
The practice or act of inducing hypnosis.
Example
He studied hypnotism as part of his psychology degree.
Il a étudié l'hypnotisme dans le cadre de son diplôme en psychologie.
C1 noun /ˈhɛzɪtəns/

hesitance

hésitation
Meaning
The quality or state of being reluctant or uncertain.
Example
Her hesitance to speak up delayed the decision.
Son hésitation à parler a retardé la décision.
C1 verb /ˈɪnkjʊˌbeɪt/

incubate

incuber
Meaning
to keep eggs, cells, or organisms at the right conditions for development
Example
The hen will incubate the eggs until they hatch.
La poule incubera les œufs jusqu'à ce qu'ils éclosent.
C1 adjective /kənˈsɜːrtɪd/

concerted

concerté
Meaning
done with great effort, planned and performed together by multiple people
Example
The workers made a concerted effort to improve conditions.
Les travailleurs ont fait un effort concerté pour améliorer les conditions.
C1 noun /fiːt/

feat

exploit
Meaning
an achievement that requires great courage, skill, or strength
Example
Climbing Mount Everest was a remarkable feat.
Gravir le mont Everest fut un exploit remarquable.
C1 noun /ruːz/

Ruse

ruse; stratagème
Meaning
an action intended to deceive someone; a trick or stratagem
Example
The thief used a clever ruse to distract the guard.
Le voleur a utilisé une ruse astucieuse pour distraire le garde.
C1 noun prɪˈdɪk.ə.mənt

predicament

situation difficile
Meaning
A difficult, unpleasant, or embarrassing situation.
Example
Losing both jobs put him in a financial predicament.
Perdre les deux emplois l'a mis dans une situation financière difficile.
C1 noun /sɪlk klɔːθ/

Silk cloth

tissu en soie
Meaning
fabric made from natural fibers produced by silkworms
Example
The bride wore a beautiful dress made of silk cloth.
La mariée portait une belle robe faite de tissu en soie.
C1 noun /ˌɪnɪkˈspɪəriəns/

inexperience

inexpérience
Meaning
Lack of knowledge or skill in a particular activity or field.
Example
His inexperience in handling negotiations was evident.
Son inexpérience dans la gestion des négociations était évidente.
C1 adjective /oʊˈbiːs/

obese

obèse
Meaning
Extremely overweight; having an excessive amount of body fat.
Example
The doctor advised the obese patient to adopt a healthier lifestyle.
Le médecin a conseillé au patient obèse d'adopter un mode de vie plus sain.
C1 noun ˌɒp.tɪ.maɪˈzeɪ.ʃən

optimization

optimisation
Meaning
Improving processes to increase performance and efficiency.
Example
SEO optimization helps websites rank higher on search engines.
L'optimisation SEO aide les sites web à se classer plus haut dans les moteurs de recherche.
C1 noun /ˌfɪziˈɑːlədʒi/

physiology

physiologie
Meaning
the scientific study of the functions and mechanisms in a living system
Example
She is majoring in human physiology at the university.
Elle se spécialise en physiologie humaine à l'université.
C1 noun /ˌɑːrbɪˈtreɪʃən/

arbitration

arbitrage
Meaning
the process of resolving a dispute through an impartial third party whose decision is binding; formal judgment outside a court
Example
The contract requires arbitration to settle any disputes.
Le contrat impose l’arbitrage pour régler tout différend.
C1 adjective /ˈhɔːltɪŋ/

halting

hésitant
Meaning
slow and hesitant, especially due to lack of confidence
Example
She gave a halting reply during the interview.
Elle a donné une réponse hésitante lors de l'entretien.
C1 noun /doʊ/

doe

biche
Meaning
a female deer, especially an adult one
Example
The doe and her fawn were grazing in the meadow.
La biche et son faon paissaient dans la prairie.
C1 noun /ˈrɛnɪˌɡeɪd/

renegade

renégat
Meaning
a person who deserts or betrays an organization, country, or principles
Example
He was labeled a renegade after leaving the party and criticizing its policies.
Il a été étiqueté comme un renégat après avoir quitté le parti et critiqué ses politiques.
C1 verb /skwɪnt/

squint

plisser les yeux
Meaning
to look with partly closed eyes
Example
She squinted at the bright sunlight.
Elle plissa les yeux à cause de la lumière brillante du soleil.
C1 adjective /ˈstoʊɪk/

stoic

stoïque, implacable
Meaning
Showing little or no emotion, even in difficult situations.
Example
She remained stoic during the crisis, never showing fear or panic.
Elle est restée stoïque pendant la crise, sans montrer de peur ni de panique.
C1 noun /sɪv/

sieve

passoire
Meaning
a utensil with a mesh or perforated bottom, used for straining or sifting
Example
She used a sieve to strain the pasta.
Elle a utilisé une passoire pour filtrer les pâtes.
C1 adjective /seɪdʒ/

Sage

sage; prudent; ayant bon jugement
Meaning
wise; showing wisdom from experience; prudent; having good judgment
Example
The sage advice from the elder helped solve the problem.
Le sage conseil de l'aîné a aidé à résoudre le problème.
C1 adjective /ˈmaɪ.ɡrə.tɔːr.i/

Migratory

migratoire
Meaning
moving from one place to another; characterized by seasonal movement
Example
Many birds are migratory and travel thousands of miles each season.
De nombreux oiseaux sont migrateurs et parcourent des milliers de kilomètres chaque saison.
C1 noun /ˈʌp.rɔːr/

Uproar

tumulte; agitation; bruit
Meaning
a loud and emotional noise or disturbance; public outcry
Example
The announcement caused an uproar among the students.
L'annonce a provoqué un tumulte parmi les étudiants.
C1 noun /ˈpɔːr.kjə.paɪn/

Porcupine

Porc-épic
Meaning
a large rodent with defensive spines or quills on its body
Example
The porcupine raised its quills when threatened.
Le porc-épic a levé ses piquants lorsqu'il a été menacé.
C1 verb /ɡɔːr/

gore

percer avec des cornes
Meaning
to pierce with horns or tusks; spilled blood
Example
The bull gored the matador during the fight.
Le taureau a blessé le matador pendant le combat.
C1 verb ˌkəʊ.əˈles

coalesce

fusionner
Meaning
Come together and form one mass or whole; unite to form one organization or group.
Example
The different theories coalesced into one unified idea.
Les différentes théories se sont fusionnées en une idée unifiée.
C1 verb /ˈtɑːtər/

totter

tituber
Meaning
To move unsteadily, as if about to fall; to be on the point of collapse.
Example
The old man tottered across the street with a cane.
Le vieil homme a titubé à travers la rue avec une canne.
C1 noun /ˈpɜːrkəleɪtər/

percolator

percolateur à café
Meaning
A device used for brewing coffee by continually cycling boiling water through coffee grounds.
Example
She made a fresh pot of coffee using the percolator.
Elle a préparé une tasse de café frais en utilisant le percolateur.
C1 adverb /ˌðɛərˈtu/

Thereto

avec cela;
Meaning
to that; in addition to that
Example
The house and the garden attached thereto were sold.
La maison et le jardin y attachés ont été vendus.
C1 noun /rɪˈdʒɔɪsɪŋ/

rejoicing

joie
Meaning
The action of showing great joy or happiness
Example
There was much rejoicing after the victory.
Il y a eu beaucoup de joie après la victoire.
C1 noun /ˈkæptər/

captor

captif
Meaning
a person or group who has captured someone or something
Example
The hostage managed to escape from his captors.
L'otage a réussi à s'échapper de ses ravisseurs.
C1 adjective ˈsɪŋ.krə.nəs

synchronous

synchrone
Meaning
Existing or occurring at the same time.
Example
Synchronous learning involves live online classes.
L'apprentissage synchrone implique des cours en ligne en direct.
C1 noun ˌeə.rəʊ.daɪˈnæm.ɪks

aerodynamics

aérodynamique
Meaning
The study of the properties of moving air and the interaction between the air and solid bodies moving through it.
Example
The aerodynamics of an aircraft determines its speed and efficiency.
L'aérodynamique d'un avion détermine sa vitesse et son efficacité.
C1 noun /kjʊˈreɪtər/

curator

conservateur
Meaning
a person who is responsible for the care and management of a museum, gallery, or collection
Example
The curator organized a new exhibition of ancient artifacts.
Le conservateur a organisé une nouvelle exposition d'artefacts anciens.
C1 adjective /ˈljʊərɪd/

lurid

choquant et sensationnel de manière vive
Meaning
shocking or sensational in a vivid way, often involving crime or violence
Example
The newspaper published a lurid account of the crime.
Le journal a publié un récit choquant du crime.
C1 noun /joʊk/

Yoke

joug
Meaning
a wooden crosspiece that is fastened over the necks of two animals and attached to a plow or cart; a burden or oppressive situation
Example
The oxen were joined by a wooden yoke.
Les bœufs étaient reliés par un joug en bois.
C1 noun njuːˈtræl.ə.ti

neutrality

neutralité
Meaning
The state of not supporting or helping either side in a conflict, disagreement, etc.; impartiality.
Example
Neutrality fosters trust in decision-making.
La neutralité favorise la confiance dans la prise de décision.
C1 noun speɪst ˌrep.ɪˈtɪʃ.ən

spaced repetition

répétition espacée
Meaning
A learning technique that involves reviewing information at increasing intervals to improve long-term retention.
Example
Spaced repetition helps in long-term memory retention.
La répétition espacée aide à maintenir la mémoire à long terme.
C1 noun /ˈkɑːrkəs/

carcass

cadavre d'un animal
Meaning
the dead body of an animal, especially after being slaughtered
Example
Vultures fed on the carcass left in the field.
Les vautours se sont nourris du cadavre laissé dans le champ.
C1 noun /ˈɛksɜːrpt/

excerpt

extrait
Meaning
A short portion taken from a text, film, or piece of music.
Example
The teacher read an excerpt from the novel.
Le professeur a lu un extrait du roman.
C1 noun /ˈfɔːr.teɪ/ or /fɔːrt/

forte

talent
Meaning
a strong ability or talent; something one does particularly well
Example
Cooking is definitely her forte.
La cuisine est définitivement son talent.
C1 verb /ˈlɔːndər/

launder

laver les vêtements / dissimuler l'origine de l'argent obtenu illégalement
Meaning
to wash clothes, linens, etc.; or to conceal the origins of money obtained illegally
Example
She laundered all the dirty clothes on Sunday.
Elle a lavé tous les vêtements sales dimanche.
C1 adjective /bəˈlɪdʒ.ər.ənt/

belligerent

belliqueux ou agressif
Meaning
Hostile and aggressive, ready to fight or argue.
Example
His belligerent attitude often leads to conflicts.
Son attitude belliqueuse mène souvent à des conflits.
C1 noun /ˈnjuːtrɪənt dɪˈfɪʃənsi/

nutrient deficiency

déficience en nutriments
Meaning
A lack of essential nutrients required for healthy plant growth, which can result in poor crop development, reduced yields, and increased susceptibility to diseases.
Example
Nutrient deficiency in the soil can reduce crop productivity.
La déficience en nutriments dans le sol peut réduire la productivité des cultures.
C1 verb /ɪˈnjuːməˌreɪt/

enumerate

énumérer
Meaning
to mention things one by one; to list or count
Example
She enumerated the reasons for her decision.
Elle a énuméré les raisons de sa décision.
C1 noun /ˈpæs.ɪ.fɪst/

pacifist

pacifiste
Meaning
a person who believes in peace and opposes war or violence
Example
She is a committed pacifist who campaigns against armed conflict.
Elle est une pacifiste engagée qui fait campagne contre les conflits armés.
C1 noun /ˈtrævɪsti/

travesty

parodie
Meaning
A false, absurd, or distorted representation of something.
Example
The trial was a travesty of justice.
Le procès était une parodie de justice.
C1 adjective /bɪˈriːvd/

Bereaved

endeuillé
Meaning
having lost a loved one through death
Example
The bereaved family received many condolences.
La famille endeuillée a reçu de nombreuses condoléances.
C1 adjective /ʌnˈfɔːltərɪŋ/

unfaltering

inébranlable
Meaning
Steady and resolute; not weakening or hesitating
Example
She continued with unfaltering determination.
Elle a continué avec une détermination inébranlable.
C1 verb /ˈɒp.tɪ.maɪz/

optimize

optimiser
Meaning
To make the best or most effective use of a situation, opportunity, or resource.
Example
The company is working to optimize its supply chain.
L'entreprise travaille à optimiser sa chaîne d'approvisionnement.
C1 verb, noun /lɜːrtʃ/

lurch

tituber, faire un mouvement brusque
Meaning
to make an abrupt, unsteady, or uncontrolled movement; a sudden movement or stagger
Example
The bus lurched forward as the driver hit the brakes.
Le bus a titubé en avant lorsque le conducteur a appuyé sur les freins.
C1 verb /kliːv/

cleave

fendre, couper
Meaning
to split or divide; to cut through forcefully
Example
He used an axe to cleave the wood.
Il a utilisé une hache pour fendre le bois.
C1 adjective /ˈpiːvɪʃ/

peevish

irritable
Meaning
Easily irritated, especially by unimportant things.
Example
The child grew peevish when denied candy.
L'enfant est devenu irritable lorsqu'on lui a refusé des bonbons.
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 noun /ˌsɪmbɪˈəʊsɪs/

symbiosis

relation symbiotique
Meaning
A mutually beneficial relationship between different people or groups.
Example
The symbiosis between the two companies led to mutual growth.
La symbiose entre les deux entreprises a conduit à une croissance mutuelle.
C1 adjective /ˈraɪtfəl/

rightful

légitime
Meaning
having a legitimate or just claim; proper or lawful
Example
She is the rightful owner of the property.
Elle est la propriétaire légitime de la propriété.
C1 verb /əˈlʊər/

allure

attirer
Meaning
to attract or tempt someone with something desirable; to entice
Example
The beautiful garden allured visitors from far away.
Le beau jardin a attiré les visiteurs de loin.
C1 adjective /əˈblaɪdʒɪŋ/

obliging

serviable
Meaning
Willing to help or do favors; accommodating.
Example
The staff at the hotel were very obliging and friendly.
Le personnel de l'hôtel était très serviable et amical.
C1 verb /ˈprɪkəl/

prickle

picoter
Meaning
to cause a slight stinging or tingling sensation on the skin
Example
Her skin began to prickle in the cold wind.
Sa peau a commencé à picoter avec le vent froid.
C1 verb /wɔːrp/

warp

déformer
Meaning
To twist or bend out of shape, often due to heat or moisture.
Example
The wooden door warped in the summer heat.
La porte en bois s'est déformée sous la chaleur de l'été.
C1 noun /ˈkrɒkəri/

crockery

vaisselle
Meaning
Dishes, plates, cups, and other items made of earthenware or china.
Example
The hotel provided clean crockery for the guests.
L'hôtel a fourni de la vaisselle propre pour les invités.
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 /ɪˈlɪsɪt/

elicit

éliciter
Meaning
To draw out a response, answer, or reaction from someone.
Example
The teacher’s question elicited thoughtful answers from the students.
La question du professeur a suscité des réponses réfléchies des élèves.
C1 noun /ˈhɜːrbɪsaɪd/

herbicide

herbicide
Meaning
A chemical substance used to kill unwanted plants, especially weeds.
Example
Farmers used herbicide to protect their crops from invasive weeds.
Les agriculteurs ont utilisé des herbicides pour protéger leurs cultures des mauvaises herbes envahissantes.
C1 noun /ˈæl.ɪ.moʊ.ni/

alimony

pension alimentaire
Meaning
financial support that a person is ordered by a court to give to their spouse after separation or divorce
Example
He was ordered by the court to pay monthly alimony to his ex-wife.
Le tribunal a ordonné de payer une pension alimentaire mensuelle à son ex-femme.
C1 noun /ˈtwɪstər/

twister

tornade
Meaning
A tornado or something that twists; also refers to a challenging tongue twister.
Example
The twister destroyed several houses in the village.
La tornade a détruit plusieurs maisons dans le village.
C1 noun /bəˈrɑːʒ/

barrage

barrage ou attaque rapide
Meaning
a concentrated outpouring of questions, criticisms, or blows; a rapid, continuous attack
Example
The politician faced a barrage of tough questions from reporters.
Le politicien a fait face à un barrage de questions difficiles de la part des journalistes.
C1 noun /ɪmˈpɛdɪmənt/

impediments

obstacles
Meaning
A hindrance or obstruction in doing something; things that prevent progress or achievement.
Example
Economic impediments often hinder social development.
Les obstacles économiques entravent souvent le développement social.
C1 noun /ˈsʌtlti/

subtlety

subtilité
Meaning
The quality or state of being subtle.
Example
She understood the subtlety of the situation.
Elle comprit la subtilité de la situation.
C1 noun ɪɡˌzæs.pəˈreɪ.ʃən

exasperation

exaspération
Meaning
Extreme irritation or frustration.
Example
He sighed in exasperation after hearing the same excuse again.
Il soupira d'exaspération après avoir entendu la même excuse à nouveau.
C1 noun /ˈhed.weɪ/

Headway

progrès; avancée; progression
Meaning
forward movement or progress, especially when this is slow or difficult
Example
Despite the challenges, the research team made significant headway in developing the new vaccine.
Malgré les défis, l'équipe de recherche a fait des progrès significatifs dans le développement du nouveau vaccin.
C1 adjective ˈpɪv.ə.təl

pivotal

crucial
Meaning
Of crucial importance in relation to the development or success of something else.
Example
Renewable energy plays a pivotal role in sustainability.
L'énergie renouvelable joue un rôle crucial dans la durabilité.
C1 adjective /ˈstraɪ.dənt/

strident

strident, bruyant
Meaning
loud and harsh; presenting a point of view in a forceful way
Example
His strident voice made the debate uncomfortable.
Sa voix stridente rendait le débat inconfortable.
C1 verb /ˈpɜːrsɪkjuːt/

persecute

bonheur
Meaning
to treat someone cruelly or unfairly, especially because of their religion, race, or beliefs
Example
Many people were persecuted for their faith during that time.
Elle ne pouvait pas cacher son bonheur lorsqu'elle a reçu le prix.
C1 adjective /ˈlætərəl/

lateral

latéral
Meaning
Relating to the side or sideways movement.
Example
The football player made a quick lateral pass.
Le joueur de football a fait une passe latérale rapide.
C1 adjective /ˌhæpi ɡoʊ ˈlʌki/

happy-go-lucky

insouciant, détendu, sans souci
Meaning
cheerfully unconcerned about the future; carefree
Example
She has a happy-go-lucky attitude and never worries about tomorrow.
Elle a une attitude heureuse et insouciante et ne se soucie jamais de demain.
C1 adjective /fəˈnɛtɪk/

phonetic

phonétique
Meaning
relating to the sounds of speech or pronunciation
Example
The teacher taught the students the phonetic spelling of difficult words.
Le professeur a enseigné aux élèves l'orthographe phonétique des mots difficiles.
C1 noun əˌkred.ɪˈteɪ.ʃən

accreditation

accréditation
Meaning
The action or process of officially recognizing someone or something as having a particular status or being qualified to perform a particular activity.
Example
Accreditation ensures institutional credibility.
L'accréditation garantit la crédibilité institutionnelle.
C1 adjective /ɪˈnɔːrdənət/

inordinate

excessif
Meaning
Excessive or unusually large in degree.
Example
She spent an inordinate amount of time on her phone.
Elle a passé un temps excessif sur son téléphone.
C1 noun ˌlɪt.ɪˈɡeɪ.ʃən

litigation

litige
Meaning
The process of taking legal action; a lawsuit.
Example
The litigation accused the regime of human rights abuses.
Le litige a accusé le régime de violations des droits de l'homme.
C1 verb /dɪˈfɔːrm/

deform

déformer
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.
La chaleur intense a commencé à déformer le récipient en plastique.
C1 adjective /ˈneɡ.lɪ.dʒə.bəl/

Negligible

négligeable
Meaning
so small or unimportant as to be not worth considering; insignificant
Example
The side effects of this medicine are negligible.
Les effets secondaires de ce médicament sont négligeables.
C1 adjective /ˈroʊtəri/

rotary

rotatif
Meaning
Relating to or characterized by rotation; revolving around an axis.
Example
The machine uses a rotary engine to function efficiently.
La machine utilise un moteur rotatif pour fonctionner efficacement.
C1 verb /səˈkʌm/

succumb

céder
Meaning
To give in to pressure, temptation, or illness; to yield or fail to resist.
Example
He finally succumbed to his illness after a long struggle.
Il a finalement succombé à sa maladie après une longue lutte.
C1 verb /dɪsˈhɑːrtn/

dishearten

décourager
Meaning
to cause someone to lose determination or confidence; to discourage
Example
The constant rejection letters began to dishearten the young writer.
Les lettres de rejet constantes ont commencé à décourager le jeune écrivain.
C1 noun /ˈdɛsɪˌbɛl/

decibel

décibel
Meaning
a unit used to measure the intensity of sound
Example
The noise level in the factory exceeded 90 decibels.
Le niveau de bruit dans l'usine a dépassé 90 décibels.
C1 noun ˈɛksəʊˌplænɪt

exoplanet

une planète qui orbite autour d'une étoile en dehors du système solaire
Meaning
A planet that orbits a star outside the solar system.
Example
Astronomers have discovered thousands of exoplanets in the last decade.
Les astronomes ont découvert des milliers d'exoplanètes au cours de la dernière décennie.
C1 noun /hoʊks/

Hoax

farce; tromperie; canular
Meaning
a humorous or malicious deception; something intended to trick or deceive people
Example
The news about aliens landing turned out to be an elaborate hoax created by pranksters.
Les nouvelles sur l'atterrissage des extraterrestres se sont révélées être une farce élaborée créée par des farceurs.
C1 noun

Kin

famille; parents;
C1 noun /təˈpɒɡrəfi/

topography

topographie
Meaning
the arrangement of the natural and artificial physical features of an area
Example
The topography of the region made construction very challenging.
La topographie de la région a rendu la construction très difficile.
C1 noun /ˈpɑːrlər/

parlor

salon, boutique
Meaning
A sitting room in a private house, or a shop providing specified services.
Example
They welcomed the guests into the front parlor.
Ils ont accueilli les invités dans le salon.
C1 verb /ɪˈkɒnəmaɪz/

economize

économiser
Meaning
To reduce spending or use resources carefully.
Example
Families are trying to economize by cutting unnecessary expenses.
Les familles essaient d'économiser en réduisant les dépenses inutiles.
C1 noun /ˈwiː.vər/

Weaver

tisserand
Meaning
a person who makes cloth by interlacing threads on a loom
Example
The skilled weaver created intricate patterns on the silk fabric.
Le tisserand habile a créé des motifs complexes sur le tissu en soie.
C1 verb /ˈrek.ən.saɪl/

reconcile

réconcilier, harmoniser, faire la paix
Meaning
Restore friendly relations between; cause to coexist in harmony.
Example
They tried to reconcile their differences through open communication.
Ils ont essayé de réconcilier leurs différends par une communication ouverte.
C1 noun /ˈbɑːr.tər ˌsɪs.təm/

barter system

système d'échange
Meaning
A system of exchange where goods and services are traded directly without using money.
Example
Ancient civilizations used the barter system for trade.
Les civilisations anciennes utilisaient le système d'échange pour le commerce.
C1 noun /ˈmuːdi.nəs/

moodiness

instabilité émotionnelle
Meaning
The state of being frequently subject to changes in mood, especially irritability or sadness.
Example
Her moodiness made it difficult to predict how she would react.
Son instabilité émotionnelle rendait difficile de prédire comment elle réagirait.
C1 adjective /pəˈleɪ.ʃəl/

palatial

palatial
Meaning
resembling a palace in being spacious and splendid
Example
They stayed in a palatial hotel during their vacation.
Ils ont séjourné dans un hôtel palais pendant leurs vacances.
C1 adjective /əbˈzɜːrvənt/

Observant

observateur
Meaning
quick to notice things; watchful; attentive
Example
The observant detective noticed every small detail at the crime scene.
Le détective observateur a remarqué chaque petit détail sur la scène du crime.
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 /ˌhaɪdroʊɪˈlɛktrɪk/

hydroelectric

hydroélectrique
Meaning
Relating to or denoting the generation of electricity using flowing water.
Example
The country invested heavily in hydroelectric power plants.
Le pays a investi massivement dans des centrales hydroélectriques.
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 noun /ˈsaɪd.laɪn dɪˈskʌʃənz/

sideline discussions

discussions secondaires
Meaning
Informal or secondary conversations that occur outside the main agenda of a formal meeting.
Example
Sideline discussions often lead to agreements.
Les discussions secondaires mènent souvent à des accords.
C1 verb /ˈsɪnɚdʒaɪzd/

synergized

synchronisé, énergisé, coordonné
Meaning
Combine in such a way that the total effect is greater than the sum of the individual effects.
Example
The teams were synergized to maximize productivity.
Les équipes ont été synchronisées pour maximiser la productivité.
C1 adjective ˈsɛd(ə)ntəri

sedentary

sédentaire
Meaning
Characterized by much sitting and little physical activity.
Example
A sedentary lifestyle can lead to numerous health problems.
Un mode de vie sédentaire peut entraîner de nombreux problèmes de santé.
C1 adverb /iːsˈθetɪkli/

aesthetically

esthétiquement
Meaning
in a way that is concerned with beauty or visual appeal
Example
The building is aesthetically pleasing despite its simple design.
Le bâtiment est esthétiquement agréable malgré son design simple.
C1 adjective /ˈmiːɡər/

meager

mince
Meaning
Lacking in quantity or quality; inadequate.
Example
He could barely survive on his meager salary.
Il pouvait à peine survivre avec son maigre salaire.
C1 noun /ˈleɪ.tən.si/

latency

latence
Meaning
The delay in processing signals or data.
Example
High latency in online gaming can cause lagging issues.
Une latence élevée dans les jeux en ligne peut causer des problèmes de décalage.
C1 noun ˈfæl.ə.si

fallacy

fallacie, erreur, raisonnement incorrect
Meaning
False belief, misconception, false reasoning.
Example
The idea that success comes easy is a fallacy.
L'idée que le succès vient facilement est une fallacie.
C1 verb /ˈɡɑː.nər/

garner

recueillir
Meaning
To gather or collect, especially information, support, or approval.
Example
The politician garnered support from young voters.
Le politicien a recueilli le soutien des jeunes électeurs.
C1 noun/verb /rɪˈlæps/

relapse

rechute
Meaning
to return to a worse condition, especially after improvement; a deterioration after recovery
Example
After months of progress, he suffered a relapse.
Après des mois de progrès, il a subi une rechute.
C1 adjective /ˌɪnhɒˈspɪtəbl/

inhospitable

inhospitalier
Meaning
Harsh and difficult to live in; unfriendly or unwelcoming to guests.
Example
The desert is an inhospitable environment for most plants.
Le désert est un environnement inhospitalier pour la plupart des plantes.
C1 noun /ɪkˌsperɪˈmɛnteɪʃən/

experimentation

expérimentation
Meaning
The process of performing a scientific procedure to make a discovery, test a hypothesis, or demonstrate a known fact.
Example
Experimentation leads to groundbreaking products.
L'expérimentation mène à des produits révolutionnaires.
C1 adjective ˈriːdʒən spəˈsɪfɪk

region-specific

spécifique à la région
Meaning
Relating to or characteristic of a particular region or area.
Example
Climate change impacts are region-specific.
Les impacts du changement climatique sont spécifiques à la région.
C1 noun /æmˈniːʒə/

amnesia

amnésie
Meaning
A partial or total loss of memory, usually caused by injury, illness, or psychological trauma.
Example
After the accident, she suffered from amnesia and could not remember her own name.
Après l'accident, elle a souffert d'amnésie et n'a pas pu se souvenir de son propre nom.
C1 verb /prəˈfes/

profess

professer
Meaning
to declare or claim openly; to state one's belief
Example
He professes his love for classical music.
Il professe son amour pour la musique classique.
C1 adjective /ˈspaɪn.ləs/

Spineless

sans courage; de volonté faible; lâche
Meaning
lacking courage or determination; weak-willed
Example
He was too spineless to stand up for his beliefs.
Il était trop sans colonne vertébrale pour défendre ses croyances.
C1 adjective, noun /rɪˈsiːvəbl/

receivable

recouvrable
Meaning
Money that is owed to a company and is expected to be paid.
Example
The company's receivables increased significantly this quarter.
Les créances de l'entreprise ont considérablement augmenté ce trimestre.
C1 verb /pləˈkeɪt/

placate

calmer
Meaning
to make someone less angry or hostile; to calm or soothe
Example
He tried to placate the angry customer with a refund.
Il a essayé de calmer le client en colère avec un remboursement.
C1 noun /ˈrʌbəl/

rubble

débris
Meaning
Broken stone, bricks, or debris from a collapsed building or structure.
Example
The rescue team searched through the rubble after the earthquake.
L'équipe de sauvetage a cherché dans les débris après le tremblement de terre.
C1 adjective ˌɪn.trəˈspek.tɪv

introspective

introspectif
Meaning
Characterized by or given to introspection; examining one's own thoughts and feelings.
Example
Writers tend to be highly introspective individuals.
Les écrivains ont tendance à être des individus très introspectifs.