assiduous
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C2 adjective əˈsɪd.ju.əs

assiduous

assidu ou appliqué
Meaning
Showing great care and perseverance; diligent and hardworking.
Example
His assiduous efforts led to a successful career.
Ses efforts assidus l'ont conduit à une carrière réussie.
C2 verb /ˌækwiˈɛs/

acquiesce

accepter sans protester
Meaning
to accept something reluctantly but without protest
Example
She decided to acquiesce to her parents’ wishes.
Elle a décidé d'accepter sans protester les souhaits de ses parents.
C2 noun /əˈɡrɒnəmi/

agronomy

Agronomie
Meaning
The science and practice of soil management and crop production, focusing on the principles of plant and soil science to optimize agricultural productivity.
Example
Agronomy focuses on soil management and crop production.
L'agronomie se concentre sur la gestion des sols et la production de cultures.
C2 noun /ˈlɪtəni/

litany

litanie
Meaning
a long, repetitive, or tedious account or list; originally a form of prayer
Example
The politician gave a litany of promises during the campaign.
Le politicien a donné une longue liste de promesses pendant la campagne.
C2 noun /ˈjuːər/

ewer

verseuse
Meaning
a large jug with a wide mouth, especially used in the past for carrying water
Example
The servant filled the ewer with fresh water.
Le serviteur a rempli la verseuse d'eau fraîche.
C2 noun /ˈɡræn.juːl/

granule

granule
Meaning
A small compact particle of a substance.
Example
Each granule of salt sparkled under the sunlight.
Chaque granule de sel scintillait sous la lumière du soleil.
C2 adjective /ˈven.tʃər.əs/

Venturous

aventurier; audacieux
Meaning
willing to take risks; adventurous; bold
Example
The venturous explorer climbed the dangerous mountain.
L'explorateur audacieux a grimpé la montagne dangereuse.
C2 verb /ˈæd.ʌm.breɪt/

adumbrate

préfigurer
Meaning
to foreshadow or suggest something in an unclear or indirect way
Example
The report adumbrates future economic challenges.
Le rapport préfigure les défis économiques futurs.
C2 adjective /ˈlɪəri/

leery

méfiant
Meaning
Cautious or wary due to suspicion or distrust.
Example
She was leery of investing in the new business.
Elle était méfiante à l'idée d'investir dans le nouveau business.
C2 noun /zɪˈnɑːnə/

Zenanna

zenanna
Meaning
the part of a house reserved for women; women's quarters in Muslim households; harem
Example
The zenanna was beautifully decorated with intricate patterns.
Le zenanna était magnifiquement décoré avec des motifs complexes.
C2 adjective /ˈɔːrəˌtʌnd/

orotund

voix profonde et claire
Meaning
full, rich, and clear in sound; pompous in style
Example
The actor's orotund voice filled the theater.
La voix profonde de l'acteur a rempli le théâtre.
C2 verb /ˈɡʌzəl/

guzzle

boire goulûment
Meaning
to drink greedily or excessively
Example
He guzzled three cans of soda in a few minutes.
Il a bu trois canettes de soda en quelques minutes.
C2 noun /rɪˈsɪdɪˌvɪzəm/

recidivism

récidivisme
Meaning
The tendency of a convicted criminal to reoffend or relapse into criminal behavior.
Example
The government introduced new programs to reduce recidivism among former inmates.
Le gouvernement a mis en place de nouveaux programmes pour réduire le récidivisme chez les anciens détenus.
C2 adjective /ˌnɒnˈtrɪviəl/

nontrivial

non trivial
Meaning
Not simple or easy; requiring effort or significant thought.
Example
Solving the equation turned out to be a nontrivial task.
Résoudre l'équation s'est avéré être une tâche non triviale.
C2 noun /ˈhæŋ.kər.ɪŋ/

hankering

désir ardent
Meaning
a strong desire or craving for something.
Example
She had a hankering for chocolate late at night.
Elle avait un désir ardent de chocolat tard dans la nuit.
C2 noun /klaɪm/

clime

climat
Meaning
A region defined by its climate.
Example
He traveled to warmer climes during the winter.
Il a voyagé dans des climats plus chauds pendant l'hiver.
C2 verb /ˈæmbl/

amble

marcher lentement
Meaning
To walk at a slow, relaxed pace.
Example
They amble through the park on Sunday mornings.
Ils marchent lentement dans le parc le dimanche matin.
C2 adjective, adverb /ˈsaɪdlɔːŋ/

sidelong

regard oblique
Meaning
Directed to the side; indirect, furtive, or not straightforward.
Example
She gave him a sidelong glance across the room.
Elle lui lança un regard oblique à travers la pièce.
C2 verb /ˈdɒdə/

dodder

trembler en marchant
Meaning
To move in a weak and unsteady way, especially due to old age.
Example
The old man doddered across the street with a cane.
Le vieil homme marchait en tremblant dans la rue avec une canne.
C2 adjective /beɪˈkoʊniən/

baconian

baconien
Meaning
Relating to the philosopher Francis Bacon or his method of scientific reasoning.
Example
The researcher followed a Baconian approach to observation and experimentation.
Le chercheur a suivi une approche baconienne de l'observation et de l'expérimentation.
C2 adjective /ˈθʌroʊˌɡoʊɪŋ/

thoroughgoing

complet, absolu
Meaning
carried out to the full extent; absolute and complete
Example
She is a thoroughgoing professional in every sense.
Elle est une professionnelle complète dans tous les sens.
C2 verb /ˈærəˌɡeɪt/

arrogate

revendiquer injustement
Meaning
To claim or take something without justification.
Example
The dictator arrogated all powers to himself.
Le dictateur a revendiqué tous les pouvoirs pour lui-même de manière injuste.
C2 noun /ˈɜːrtʃɪn/

urchin

gamin des rues
Meaning
a mischievous or poorly dressed child, often from the streets
Example
The ragged urchins played by the riverbank.
Les gamins en haillons jouaient au bord de la rivière.
C2 noun /ˌkʌmˈʌpəns/

comeuppance

châtiment mérité
Meaning
A deserved punishment or fate; just deserts.
Example
The corrupt official finally got his comeuppance in court.
Le fonctionnaire corrompu a enfin reçu sa punition méritée au tribunal.
C2 adjective /sɪˈnɜːrdʒɪk/

synergic

synergique
Meaning
Working together in a cooperative and effective manner.
Example
The two departments have a synergic relationship that boosts productivity.
Les deux départements ont une relation synergique qui augmente la productivité.
C2 noun /ˌvɛəriəˈɡeɪʃən/

variegation

variété
Meaning
The appearance of differently colored zones in the leaves, flowers, or stems of plants.
Example
Variegation makes the foliage look more attractive.
La variegation rend le feuillage plus attrayant.
C2 verb /ɪmˈbruː/

imbrue

tacher
Meaning
To stain, especially with blood.
Example
His hands were imbrued with blood after the battle.
Ses mains étaient tachetées de sang après la bataille.
C2 noun /kəˈnaɪ.vəns/

connivance

connivence
Meaning
the act of secretly allowing or being involved in wrongdoing
Example
The theft happened with the connivance of the security guard.
Le vol a eu lieu avec la connivence du gardien de sécurité.
C2 noun /ˌdɛprɪˈdeɪʃən/

depredation

pillage
Meaning
An act of attacking or plundering; damage caused by such acts.
Example
The villagers feared the depredation of wild animals at night.
Les villageois craignaient le pillage des animaux sauvages la nuit.
C2 noun /ˈmɒnəɡræm/

monogram

monogramme
Meaning
A design consisting of two or more letters, typically a person's initials, combined or interwoven.
Example
The towel was embroidered with her monogram.
La serviette était brodée avec son monogramme.
C2 verb /ˈeksɔːrsaɪz/

exorcise

exorciser
Meaning
To drive out an evil spirit or bad influence through rituals or prayers.
Example
The priest was called to exorcise the spirit from the house.
Le prêtre a été appelé pour exorciser l'esprit de la maison.
C2 adjective /ˈbaɪ.fərˌkeɪ.tɪd/

bifurcated

divisé en deux parties
Meaning
Divided into two branches or parts.
Example
The river became bifurcated as it flowed around the island.
Le fleuve est devenu bifurqué en deux parties lorsqu'il a traversé l'île.
C2 adjective /ˈleɪ.tɪʃ/

latish

un peu en retard
Meaning
Somewhat late; occurring or arriving later than usual but not very late.
Example
We arrived latish to the party but still caught most of the fun.
Nous sommes arrivés un peu en retard à la fête, mais nous avons quand même profité de la plupart du plaisir.
C2 verb /kruːn/

croon

chanter ou fredonner d'une voix douce, basse et délicate
Meaning
to sing or hum in a soft, low, and gentle voice
Example
She crooned a lullaby to help the baby fall asleep.
Elle chantait une berceuse pour aider le bébé à s'endormir.
C2 adjective /ˈɪnˌbrɛd/

inbred

inné
Meaning
existing naturally in a person or animal; also related to reproduction within a limited community
Example
He has an inbred sense of loyalty.
Il a un sens inné de la loyauté.
C2 adjective /ˈmɒn.teɪn/

montane

relatif aux régions montagneuses; trouvé dans les environnements montagneux
Meaning
Relating to mountainous regions; found in mountain environments.
Example
Montane forests host a variety of unique species.
Les forêts montagnardes abritent une variété d'espèces uniques.
C2 noun dɪsˈbɜːs.mənt

disbursement

décaissement
Meaning
The payment of money from a fund.
Example
The company's disbursement of salaries was delayed.
Le décaissement des salaires de l'entreprise a été retardé.
C2 adjective /ˈfɛstəl/

festal

relatif à un festival, festif
Meaning
relating to a festival or celebration
Example
The hall was decorated in a festal manner for the wedding.
La salle a été décorée de manière festive pour le mariage.
C2 adjective /ˌæl.ɪˈmen.tər.i/

alimentary

relatif à la digestion
Meaning
relating to nourishment or the organs of digestion
Example
The doctor explained the role of the alimentary canal in digestion.
Le médecin a expliqué le rôle du canal alimentaire dans la digestion.
C2 noun /ˌpɜːrtərˈbeɪʃn/

perturbation

perturbation
Meaning
A state of anxiety, disturbance, or disorder.
Example
The announcement caused a perturbation in the financial markets.
L'annonce a causé une perturbation sur les marchés financiers.
C2 noun /ˌrep.ɑːˈtiː/

Repartee

réplique
Meaning
conversation or speech characterized by quick, witty comments or replies
Example
The dinner party was filled with brilliant repartee between the guests.
Le dîner était rempli de répliques brillantes entre les invités.
C2 adjective /ɪnˈvaɪələt/

inviolate

inviolé
Meaning
free from violation, injury, or desecration; kept safe and untouched
Example
The ancient temple remained inviolate for centuries.
Le temple ancien est resté inviolé pendant des siècles.
C2 adjective /ˈvɛdʒɪtəl/

vegetal

végétal
Meaning
relating to or consisting of plants or vegetation
Example
The soup had a distinct vegetal flavor.
La soupe avait une saveur végétale distincte.
C2 verb /səˈfjuːz/

suffuse

envahir
Meaning
to gradually spread through or over something
Example
A warm glow suffused her face as she smiled.
Une lueur chaude envahit son visage lorsqu'elle sourit.
C2 noun (plural, informal) /skædz/

scads

des tas
Meaning
A large number or quantity of something (informal).
Example
She has scads of friends in the city.
Elle a des tas d'amis en ville.
C2 adjective /ˈɑːbdjʊrət/

obdurate

obstiné
Meaning
Stubbornly refusing to change one's opinion or course of action.
Example
He remained obdurate despite everyone's pleas.
Il est resté obstiné malgré les suppliques de tout le monde.
C2 verb /ˈfæmɪʃ/

famish

mourir de faim
Meaning
to suffer or cause to suffer from extreme hunger
Example
The stranded hikers began to famish after several days without food.
Les randonneurs bloqués ont commencé à mourir de faim après plusieurs jours sans nourriture.
C2 verb /ɪɡˈzʌlt/

exult

exulter
Meaning
to show or feel great joy, often as a result of success
Example
The fans exulted after their team won the championship.
Les fans exultaient après la victoire de leur équipe au championnat.
C2 noun /ˈpoʊ.ɪˌtæs.tər/

poetaster

un poète inférieur ou trivial
Meaning
an inferior or trivial poet
Example
He was mocked as a poetaster by the literary critics.
Il a été moqué comme un poétasteur par les critiques littéraires.
C2 verb /ˈflʌməks/

flummox

déconcerter
Meaning
To confuse or bewilder someone completely.
Example
The complicated puzzle flummoxed the students.
Le puzzle compliqué a déconcerté les étudiants.
C2 adjective /pɒnˈtɪfɪkəl/

pontifical

relatif à un pape ou un évêque ; pompeux ou prétentieux
Meaning
relating to a pope or bishop; pompous or self-important
Example
His pontifical manner annoyed the other members of the committee.
Son comportement prétentieux agaçait les autres membres du comité.
C2 noun prɒkˈsiː.mɪks

proxemics

l'étude de l'utilisation de l'espace personnel
Meaning
The study of how people use space and distance to indicate relationships
Example
Understanding proxemics helps in improving interpersonal communication.
Comprendre la proxémique aide à améliorer la communication interpersonnelle.
C2 adverb /ˌfɔːrθˈwɪθ/

Forthwith

immédiatement; sans retard; sur-le-champ
Meaning
immediately; without delay; at once
Example
The manager ordered the employee to stop the unsafe practice forthwith.
Le directeur a ordonné à l'employé d'arrêter immédiatement la pratique dangereuse.
C2 noun /ɪkˌspɒstjʊˈleɪʃən/

expostulation

protestation
Meaning
the act of expressing protest or disagreement
Example
His expostulation against the unfair rules was ignored.
Sa protestation contre les règles injustes a été ignorée.
C2 noun /flɛk/

fleck

tache petite
Meaning
a small spot or mark, often of a different color
Example
There was a fleck of paint on the floor.
Il y avait une tache de peinture sur le sol.
C2 noun /ˈprɒm.ən.tɔːr.i/

promontory

promontoire
Meaning
A high point of land or rock projecting into a body of water.
Example
The lighthouse stood on a promontory overlooking the sea.
Le phare se trouvait sur un promontoire surplombant la mer.
C2 noun /ˌɪntərˈsɛsər/

intercessor

intercesseur
Meaning
a person who intervenes or pleads on behalf of another
Example
He acted as an intercessor to resolve the conflict between the two families.
Il a agi en tant qu'intercesseur pour résoudre le conflit entre les deux familles.
C2 verb /dɪˈdʒɛkt/

deject

dégrader
Meaning
to make someone feel sad, depressed, or dispirited
Example
The news of his failure seemed to deject him deeply.
Les nouvelles de son échec semblaient le déprimer profondément.
C2 adjective /ˌɪnsəˈprɛsəbl/

insuppressible

irrépressible
Meaning
That cannot be suppressed or restrained.
Example
She had an insuppressible urge to laugh during the ceremony.
Elle avait une envie irrépressible de rire pendant la cérémonie.
C2 adverb /ˌeɪˈmɔːrəli/

amorally

amoralement
Meaning
In a way that shows no concern about whether behavior is morally right or wrong.
Example
He acted amorally, ignoring the consequences of his actions.
Il a agi amoralement, ignorant les conséquences de ses actions.
C2 noun /dʒenˈtɪl.ə.ti/

Gentility

gentillesse; raffinement
Meaning
social superiority as demonstrated by polite and refined manners; the quality of being well-mannered and refined
Example
Her natural gentility and grace made her popular among high society circles.
Sa gentillesse et sa grâce naturelles l'ont rendue populaire parmi les cercles de la haute société.
C2 adjective /ˌɪndaɪˈdʒestəbəl/

Indigestible

indigeste; difficile à digérer
Meaning
difficult or impossible to digest; hard to process in the stomach
Example
The old bread became hard and indigestible.
Le vieux pain est devenu dur et indigeste.
C2 noun /ˌæpəˈleɪʃən/

appellation

titre / nom
Meaning
a name or title
Example
The city has earned the appellation 'The Big Apple'.
La ville a gagné le titre 'La Grande Pomme'.
C2 adjective/verb /ɪnˈkɑːrneɪt/

incarnate

incarné
Meaning
to embody or represent in human form; in flesh
Example
She is kindness incarnate.
Elle est la bonté incarnée.
C2 noun /ˌbeɪˈliː/

bailee

dépositaire
Meaning
a person or party who temporarily receives possession of goods or property from another under a legal agreement
Example
The bailee must take reasonable care of the goods while they are in his possession.
Le dépositaire doit prendre soin des biens.
C2 adjective /trænsˈfjuːzəbl̩/

transfusible

transfusible
Meaning
capable of being transfused, especially referring to blood or fluids
Example
Only transfusible blood types are used in the hospital.
Seuls les groupes sanguins transfusibles sont utilisés à l'hôpital.
C2 adverb, adjective /ˈɡrætɪs/ or /ˈɡreɪtɪs/

gratis

gratuit
Meaning
Without charge; free of cost.
Example
The drinks at the event were provided gratis.
Les boissons à l'événement étaient fournies gratuitement.
C2 adjective /əˈluːsɪv/

allusive

allusif
Meaning
Making indirect references or hints; suggestive without being explicit.
Example
The novel is full of allusive passages that point to classical literature.
Le roman est plein de passages allusifs qui font référence à la littérature classique.
C2 verb /beɪt/

bate

réduire, atténuer
Meaning
to lessen or restrain; to diminish the force or intensity of something
Example
He spoke with bated breath as he waited for the result.
Il parla avec une respiration retenue en attendant le résultat.
C2 noun /ˈoʊ.vər.let/

Overlet

surmatelas
Meaning
a thin mattress or pad placed over a bed for additional comfort
Example
The overlet makes the bed more comfortable to sleep on.
Le surmatelas rend le lit plus confortable pour dormir.
C2 noun ট্রোপোস্ফিয়ার

troposphere

trophosphère
Meaning
The lowest layer of Earth's atmosphere where weather phenomena occur.
Example
The troposphere is where weather phenomena occur.
La troposphère est là où se produisent les phénomènes météorologiques.
C2 noun /ɪnˈvɛktɪv/

invective

langage injurieux
Meaning
Insulting, abusive, or highly critical language.
Example
The politician’s speech was filled with invective against his opponents.
Le discours du politicien était rempli d'invectives contre ses adversaires.
C2 noun /kɒɡˈnoʊmən/

cognomen

nom de famille / surnom
Meaning
A family name or surname; an additional name or nickname.
Example
His cognomen became widely known in literary circles.
Son nom de famille est devenu largement connu dans les cercles littéraires.
C2 adjective /ˈwɪzn feɪst/

wizen-faced

visage ridé et fané
Meaning
Having a dry, wrinkled, and withered face.
Example
A wizen-faced old man sat quietly in the corner.
Un vieil homme au visage ridé et fané était assis tranquillement dans le coin.
C2 noun /ˈæntɪkwɛri/

antiquary

antiquaire
Meaning
A person who studies, collects, or deals in antiques or ancient objects.
Example
The antiquary spent years collecting rare manuscripts from the medieval period.
L'antiquaire a passé des années à collecter des manuscrits rares de la période médiévale.
C2 adjective /ˈdekərəs/

decorous

décoratif
Meaning
showing proper and polite behavior; marked by good taste
Example
The audience gave a decorous applause after the performance.
Le public a applaudi de manière décorative après la performance.
C2 noun /ˈkɔːrsər/

courser

cheval rapide ou cheval de chasse
Meaning
a swift horse or a hunting horse
Example
The knight rode a fast courser into battle.
Le chevalier monta un coursier rapide au combat.
C2 adjective /ˈpɛkəbl/

peccable

pécheur
Meaning
liable to sin or error; capable of doing wrong
Example
Humans are peccable, but they strive for goodness.
Les humains sont pécheurs, mais ils s'efforcent de faire le bien.
C2 noun /əˈspɜːr.ʒən/

aspersion

diffamation
Meaning
An attack on the reputation or integrity of someone.
Example
He cast an aspersion on her character.
Il a jeté une diffamation sur son caractère.
C2 noun /səbˈdʌk.ʃən/

subduction

Le mouvement latéral et vers le bas d'une couche de la croûte terrestre dans le manteau sous une autre plaque.
Meaning
The lateral and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate.
Example
The Pacific Ring of Fire is an area of intense subduction.
La ceinture de feu du Pacifique est une zone de subduction intense.
C2 noun /ˌbenɪˈdɪkʃən/

Benediction

bénédiction
Meaning
a blessing, especially a ceremonial one; an expression of good wishes
Example
The priest gave his benediction to the newlyweds.
Le prêtre a donné sa bénédiction aux nouveaux mariés.
C2 noun /kənˈtjuː.ʒən/

contusion

contusion, ecchymose
Meaning
a bruise or injury without breaking the skin
Example
The boxer had several contusions after the match.
Le boxeur avait plusieurs contusions après le match.
C2 adjective /ˌnjuːmɪzˈmætɪk/

numismatic

numismatique
Meaning
relating to the study or collection of coins, currency, and medals
Example
He has a numismatic collection of rare coins from around the world.
Il possède une collection numismatique de pièces rares provenant du monde entier.
C2 adverb /pəˈfɔːs/

perforce

inévitablement
Meaning
by necessity; inevitably
Example
He had to perforce accept the decision.
Il a dû accepter la décision inévitablement.
C2 noun /ˈpɪnəs/

pinnace

petit bateau
Meaning
a small boat, often carried by a larger ship
Example
The sailors used a pinnace to reach the shore.
Les marins ont utilisé un petit bateau pour atteindre le rivage.
C2 noun /viːˈnæləti/

venality

vénalité
Meaning
the quality of being open to bribery or corruption
Example
The scandal revealed the venality of several senior officials.
Le scandale a révélé la vénalité de plusieurs hauts fonctionnaires.
C2 verb /ɪnˈvaɪərən/

environ

entourer
Meaning
to surround or enclose; to encircle
Example
Mountains environ the small valley.
Les montagnes entourent la petite vallée.
C2 noun /ˈpɔl.zi/

Palsy

paralysie
Meaning
paralysis, especially that which is accompanied by involuntary tremors; loss of muscle control
Example
The elderly man suffered from palsy in his hands.
L'homme âgé souffrait de la paralysie dans ses mains.
C2 adjective /ˈdoʊlfəl/

Doleful

triste; lugubre;
Meaning
sorrowful; mournful; expressing grief or sadness
Example
She gave him a doleful look when he left.
Elle lui donna un regard triste lorsqu'il partit.
C2 adjective /eɪˈrɪðmɪk/

arrhythmic

arythmique
Meaning
Lacking a regular rhythm or beat.
Example
The patient had an arrhythmic heartbeat.
Le patient avait un battement de cœur arythmique.
C2 noun /ˈleʧ.ər/

Lecher

libidineux
Meaning
a man who behaves in a sexually inappropriate way towards women
Example
The company fired him for being a lecher.
L’entreprise l’a licencié pour avoir été un libidineux.
C2 noun /ˈdræɡˌnɛt/

dragnet

filtre
Meaning
A systematic search or investigation, often by police to catch criminals.
Example
The police launched a dragnet to capture the fugitives.
La police a lancé un filtre pour capturer les fugitifs.
C2 noun /ˌlaɪ.pəˈdʒen.ɪ.sɪs/

lipogenesis

lipogenèse
Meaning
The metabolic process of fat synthesis where excess carbohydrates are converted into fatty acids and stored as triglycerides.
Example
Excess carbohydrate intake promotes lipogenesis and fat storage.
Une consommation excessive de glucides favorise la lipogenèse et le stockage des graisses.
C2 noun /æbˈsɪʒən/

abscission

chute des feuilles
Meaning
The natural detachment of parts of a plant, typically leaves or fruit.
Example
The autumn season is marked by the abscission of leaves from trees.
La saison automnale est marquée par la chute des feuilles des arbres.
C2 noun ˌhiː.məˈfɪl.i.ə

hemophilia

hémophilie
Meaning
A medical condition in which the ability of the blood to clot is severely reduced, causing the sufferer to bleed severely from even a slight injury.
Example
Hemophilia treatment benefits from genetic editing.
Le traitement de l'hémophilie bénéficie de l'édition génétique.
C2 verb /ˈblʌdʒən/

bludgeon

frapper avec un gourdin
Meaning
to hit someone with a heavy object; to force someone into doing something
Example
The guard was bludgeoned by the attacker in the alley.
Le garde a été frappé avec un gourdin par l'attaquant dans la ruelle.
C2 verb /dɪˈsɛvər/

dissever

séparer
Meaning
To separate or cut apart.
Example
The treaty sought to dissever the two hostile regions.
Le traité a cherché à séparer les deux régions hostiles.
C2 adjective, noun /bɪˈtroʊðd/

betrothed

fiancé
Meaning
Engaged to be married; a person who is engaged.
Example
She introduced him as her betrothed.
Elle l'a présenté comme son fiancé.
C2 verb /ˈkæstreɪt/

castrate

castrer
Meaning
To remove the testicles of a male animal or human.
Example
The farmer castrated the young bulls to make them easier to manage.
L'agriculteur a castré les jeunes taureaux pour les rendre plus faciles à gérer.
C2 noun /hɑrˈmoʊniəm/

Harmonium

harmonium
Meaning
a keyboard musical instrument similar to an organ, using air to produce sound
Example
She played devotional songs on the harmonium at the temple.
Elle jouait des chants dévotionnels sur l'harmonium au temple.
C2 noun /ˈmæləprɒˌpɪzəm/

malapropism

malapropisme
Meaning
the mistaken use of a word in place of a similar-sounding one, often with amusing effect
Example
He is famous for his malapropism when speaking in public.
Il est célèbre pour son malapropisme lorsqu'il parle en public.
C2 adjective /ˌʌnəˈʃʊəd/

unassured

incertain
Meaning
Lacking confidence or certainty.
Example
She gave an unassured answer during the interview.
Elle a donné une réponse incertaine lors de l'entretien.
C2 noun /ˈvæləns/

valance

valance décorative
Meaning
A decorative drapery hung across the top of a window or bed.
Example
She chose a floral valance to match the curtains in her bedroom.
Elle a choisi une valance florale pour assortir les rideaux de sa chambre.
C2 adjective /ˈfætʃuəs/

fatuous

fatuo
Meaning
silly or foolish, especially in a self-satisfied way
Example
His fatuous comments during the meeting annoyed everyone.
Ses commentaires fatuos pendant la réunion ont agacé tout le monde.
C2 adjective /ˌɪndɪˈsɜːrnəbl/

indiscernible

indiscernable
Meaning
Impossible or difficult to see, notice, or distinguish.
Example
The difference between the two shades was almost indiscernible.
La différence entre les deux teintes était presque indiscernable.
C2 adjective ɪˈnɛfəbl

ineffable

ineffable
Meaning
Too great or extreme to be expressed or described in words.
Example
The beauty of the landscape was ineffable.
La beauté du paysage était ineffable.
C2 noun /foʊˈtɑːmɪtri/

photometry

science de la mesure de la lumière
Meaning
the science of measuring visible light in terms of its perceived brightness to human eyes
Example
Photometry helps in designing efficient lighting systems.
La photométrie aide à concevoir des systèmes d'éclairage efficaces.
C2 noun /ˈplætɪtjuːd/

platitude

platitude, lieu commun
Meaning
a remark or statement that is overused and unoriginal
Example
He kept repeating the same platitudes during the speech.
Il n'a cessé de répéter les mêmes platitudes pendant son discours.
C2 noun/adjective /ˈdɪstæf/

distaff

lié aux femmes, côté maternel
Meaning
Relating to women or the maternal side of a family; also a tool for spinning thread.
Example
She came from the distaff side of a noble family.
Elle venait du côté maternel d'une famille noble.
C2 adjective /məˈlɪfluəs/

mellifluous

mélodieux
Meaning
Sweet or musical; pleasant to hear.
Example
The singer’s mellifluous voice enchanted the audience.
La voix mélodieuse du chanteur a enchanté le public.
C2 noun /ˈsɛrəf/

seraph

séraphin
Meaning
An angelic being associated with light and purity, often depicted as a high-ranking angel in Christian theology.
Example
The stained-glass window depicted a seraph with outstretched wings.
Le vitrail représentait un séraphin avec des ailes déployées.
C2 noun /ˈvaɪnəri/

vinery

vignoble
Meaning
A place where vines are cultivated, especially a vineyard or greenhouse for vines.
Example
The old vinery was filled with grapevines.
Le vieux vignoble était rempli de vignes.
C2 verb /ɪnˈtɜːrpəˌleɪt/

interpolate

interpoler
Meaning
To insert something, often words, into a text or conversation; to estimate values between known data points.
Example
The editor interpolated a missing paragraph into the manuscript.
L'éditeur a interpolé un paragraphe manquant dans le manuscrit.
C2 noun /ˈskɜː.vi/

scurvy

Scorbut
Meaning
A disease caused by a deficiency of vitamin C, leading to weakness, gum disease, and bleeding.
Example
Sailors often suffered from scurvy during long sea voyages without fresh fruits.
Les marins souffraient souvent du scorbut lors de longs voyages en mer sans fruits frais.
C2 adverb /ˈwɪtɪŋli/

wittingly

délibérément
Meaning
Consciously and intentionally; on purpose.
Example
He wittingly withheld information from the police.
Il a délibérément retenu des informations à la police.
C2 noun /ˈɔːldərmən/

alderman

membre du conseil municipal
Meaning
An elected member of a municipal council in certain cities and towns.
Example
The alderman proposed a new plan for community parks.
L'adjoint au maire a proposé un nouveau plan pour les parcs communautaires.
C2 adjective /əˈθɜːrst/

athirst

asif, avideux
Meaning
Very eager or desirous for something.
Example
The explorer was athirst for adventure.
L'explorateur était asif d'aventure.
C2 verb /ɪnˈsaɪfər/

encipher

convertir un message en code ou en chiffre
Meaning
to convert a message into code or cipher
Example
The agent enciphered the secret message before sending it.
L'agent a chiffré le message secret avant de l'envoyer.
C2 adjective /ˈɡlɑːbjələr/

globular

sphérique
Meaning
Having the shape of a globe; spherical.
Example
The scientist studied the globular cluster of stars.
Le scientifique a étudié le groupe globulaire d'étoiles.
C2 verb /bɪˈhuːv/

behoove

être nécessaire ou approprié pour que quelqu'un fasse quelque chose
Meaning
to be necessary, proper, or appropriate for someone to do
Example
It would behoove you to study before the exam.
Il serait approprié que tu étudies avant l'examen.
C2 verb /ɪnˈtɜːr/

inter

enterrer
Meaning
To bury a dead body in the ground.
Example
They decided to inter the soldier with full honors.
Ils ont décidé d'enterrer le soldat avec tous les honneurs.