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C2 verb /ˌsuːpərˈæd/

superadd

superajouter
Meaning
to add something to what has already been added
Example
The author chose to superadd a new chapter to the revised edition.
L'auteur a choisi de superajouter un nouveau chapitre à l'édition révisée.
C2 adjective /ˌvælɪˈdɪktəri/

valedictory

de départ
Meaning
Serving as a farewell or parting; relating to a valediction.
Example
He delivered a valedictory speech at the conference.
Il a prononcé un discours de départ à la conférence.
C2 adjective ˌɪm.pəˈtɜː.bə.bəl

imperturbable

imperturbable
Meaning
Unable to be upset or excited; not easily disturbed.
Example
His imperturbable nature made him a great leader.
Sa nature imperturbable faisait de lui un grand leader.
C2 adjective /ˈpeɪli/

paly

rayé
Meaning
striped with different colors, usually used in heraldry
Example
The knight’s shield was decorated with paly stripes of red and gold.
Le bouclier du chevalier était décoré de rayures rayées rouges et dorées.
C2 noun /ˈkriːdoʊ/

credo

crédo
Meaning
A statement of the beliefs or aims that guide someone's actions.
Example
Honesty has always been the central credo of his life.
L'honnêteté a toujours été le crédo central de sa vie.
C2 noun /ˌɪmprɪˈkeɪʃən/

imprecation

malédiction
Meaning
A spoken curse or expression of strong condemnation.
Example
The angry crowd hurled imprecations at the corrupt official.
La foule en colère a lancé des malédictions à l'officiel corrompu.
C2 noun /ˈmædrɪɡəl/

madrigal

madrigal
Meaning
A short, lyrical poem set to music, typically from the Renaissance period.
Example
The choir performed a beautiful madrigal from the 16th century.
Le chœur a interprété un magnifique madrigal du XVIe siècle.
C2 noun /əˈbaɪdəns/

abidance

obéissance
Meaning
the act of following, accepting, or complying with something
Example
Her abidance by the rules impressed the committee.
Son obéissance aux règles a impressionné le comité.
C2 noun /strəˈmoʊ.ni.əm ˌflaʊ.ər/

Stramonium flower

fleur de stramoine
Meaning
A trumpet-shaped white or purple flower from the jimsonweed plant, known for its toxic properties
Example
The stramonium flower blooms at night with a sweet fragrance.
La fleur de stramoine fleurit la nuit avec un parfum doux.
C2 adjective /ɪnˈɛk.wɪ.tə.bəl/

inequitable

inéquitable
Meaning
Not fair or just; lacking in fairness or equality.
Example
The distribution of resources was inequitable among the workers.
La distribution des ressources était inéquitable parmi les travailleurs.
C2 verb /ˈkænənaɪz/

canonize

canoniser
Meaning
To officially declare a dead person a saint; to regard as great or significant.
Example
The church canonized the martyr after years of investigation.
L'église a canonisé le martyr après des années d'enquête.
C2 adjective /prəˈpʌlsɪv/

propulsive

propulsif
Meaning
Having the power to drive or push something forward.
Example
The propulsive force of the rocket lifted it off the ground.
La force propulsive de la fusée l'a soulevée du sol.
C2 noun /ˈɡræfaɪt/

graphite

graphite
Meaning
a soft, black form of carbon used in pencils and as a lubricant
Example
The artist sketched the portrait using a graphite pencil.
L'artiste a esquissé le portrait avec un crayon graphite.
C2 noun /hɔːɡ plʌm/

Hog plum

prune de hog
Meaning
tropical fruit with yellow skin and sour taste
Example
Hog plums are often used to make pickles and chutneys.
Les prunes de hog sont souvent utilisées pour faire des cornichons et des chutneys.
C2 adjective /ˈviːnəl/

venal

vénal
Meaning
willing to do dishonest things in return for money; corrupt
Example
The politician was accused of being venal and corrupt.
Le politicien a été accusé d'être vénal et corrompu.
C2 verb /kənˈsɪlieɪt/

conciliate

concilier
Meaning
to stop someone from being angry; to win over by friendly acts
Example
He tried to conciliate the angry customer with an apology.
Il a essayé de concilier le client en colère avec des excuses.
C2 adjective /ˌæntɪˈmʌndeɪn/

antemundane

avant la création du monde
Meaning
Existing or occurring before the creation of the world.
Example
Some myths speak of an antemundane chaos before order was established.
Certains mythes parlent d'un chaos antémundane avant l'établissement de l'ordre.
C2 noun /pəˈlɛmɪk/

polemic

attaque polémique
Meaning
a strong verbal or written attack on someone or something
Example
The article was a fierce polemic against the government's policies.
L'article était une attaque polémique contre les politiques du gouvernement.
C2 adjective /ˌʌnsɛrəˈmoʊniəs/

unceremonious

sans cérémonie/rude
Meaning
Done without formality or courtesy; abrupt or rude.
Example
He made an unceremonious exit from the party.
Il a fait une sortie sans cérémonie de la fête.
C2 adjective /dɪˈlɛktəbl̩/

delectable

délicieux
Meaning
delicious or highly enjoyable
Example
The restaurant served a delectable meal.
Le restaurant a servi un repas délicieux.
C2 noun /kənˈtraɪ.vəns/

contrivance

appareil ou plan
Meaning
a device or plan that is cleverly or artificially created
Example
The clock was an intricate contrivance of gears and springs.
L'horloge était un dispositif complexe de rouages et de ressorts.
C2 noun /ˌvælɪˌtjuːdɪˈnɛəriən/

valetudinarian

personne hypocondriaque
Meaning
A person who is unduly anxious about their health or constantly concerned with minor ailments.
Example
He was regarded as a valetudinarian, always worrying about his health.
Il était considéré comme un hypocondriaque, toujours préoccupé par sa santé.
C2 verb /ˌkaʊˈtaʊ/

kowtow

agir de manière excessivement servile
Meaning
To act in an excessively subservient or obedient manner.
Example
He refused to kowtow to the unreasonable demands.
Il a refusé de se soumettre aux demandes déraisonnables.
C2 noun /ˈɡeɪm.stər/

gamester

joueur
Meaning
A person who plays games, especially one who plays them skillfully or professionally.
Example
The old tavern was filled with gamesters competing in cards and dice.
L'ancienne taverne était remplie de joueurs qui se mesuraient dans des jeux de cartes et de dés.
C2 adjective /ˈpruːdɪʃ/

prudish

prude
Meaning
having or revealing a tendency to be easily shocked by matters relating to sex or nudity
Example
She was too prudish to watch the movie with her friends.
Elle était trop prude pour regarder le film avec ses amis.
C2 noun /ˈʃɑːdənfrɔɪdə/

schadenfreude

plaisir dérivé du malheur d'autrui
Meaning
pleasure derived from another person's misfortune
Example
He felt a sense of schadenfreude when his rival failed.
Il a ressenti un sentiment de schadenfreude lorsque son rival a échoué.
C2 adjective /ˈsiːkwənt/

sequent

suivant
Meaning
Following in order or as a result.
Example
The sequent events changed the course of history.
Les événements suivants ont changé le cours de l'histoire.
C2 noun /əˈsper.ɪ.ti/

asperity

asperité
Meaning
Harshness of tone, manner, or surface.
Example
She spoke with asperity when she was interrupted.
Elle parla avec aspérité lorsqu'elle fut interrompue.
C2 noun /ˈpɛntəˌɡræm/

pentagram

pentagramme
Meaning
A five-pointed star often used as a symbol in magic, mysticism, or religion.
Example
The wizard drew a pentagram on the floor as part of the ritual.
Le magicien a tracé un pentagramme sur le sol dans le cadre du rituel.
C2 noun /ˈmæk.rəˌkɒz.əm/

macrocosm

macrocosme
Meaning
The whole universe considered as a large, complex system; a large-scale representation of something.
Example
The macrocosm of the universe reflects the microcosm of human life.
Le macrocosme de l'univers reflète le microcosme de la vie humaine.
C2 adjective /ˈsɛrid/

serried

serré
Meaning
pressed or crowded together, often in rows or ranks
Example
The soldiers stood in serried ranks, ready for inspection.
Les soldats étaient en rangs serrés, prêts pour l'inspection.
C2 noun /ˈdaɪətraɪb/

diatribe

diatribe
Meaning
A forceful and bitter verbal attack against someone or something.
Example
The politician launched a diatribe against his opponents.
Le politicien a lancé une diatribe contre ses opposants.
C2 noun /ˈtrɒɡlədaɪt/

troglodyte

troglodyte
Meaning
A person who lives in a cave or is considered old-fashioned and out of touch.
Example
Some called him a troglodyte for refusing to use modern technology.
Certains l'ont traité de troglodyte pour avoir refusé d'utiliser la technologie moderne.
C2 noun /ˈbeɪleɪ/

Bele

poisson bele
Meaning
a type of freshwater fish found in South Asian rivers, known for its distinctive appearance
Example
The bele fish is commonly caught in the rivers of Bangladesh.
Le poisson bele est couramment pêché dans les rivières du Bangladesh.
C2 adverb /ɪkˈstem.pɔːr/

Extempore

spontané; improvisé
Meaning
without preparation; spontaneously; improvised
Example
The speaker delivered an impressive extempore speech at the conference.
Le conférencier a prononcé un discours extemporané impressionnant à la conférence.
C2 noun /ˈeɪʒən swɒmp iːl/

Asian swamp eel

anguille des marais asiatique
Meaning
a snake-like freshwater fish that can survive in muddy waters and is considered a delicacy in South Asian cuisine
Example
Asian swamp eel can breathe air and survive in shallow muddy waters.
L’anguille des marais asiatique peut respirer de l’air et survivre dans des eaux peu profondes et boueuses.
C2 adverb /əˈmʌk/

amok

de manière incontrôlable
Meaning
Behaving uncontrollably and disruptively.
Example
The angry mob ran amok after the verdict was announced.
La foule en colère courut de manière incontrôlable après l'annonce du verdict.
C2 adjective /ˈflæb.i/

Flabby

mou et lâche; manque de fermeté ou de tonus musculaire; faible
Meaning
soft and loose; lacking firmness or muscle tone; weak
Example
His flabby arms showed he needed to exercise more.
Ses bras flasques montraient qu'il avait besoin de faire plus d'exercice.
C2 adjective /ˈbrɔːni/

brawny

musclé
Meaning
Physically strong and muscular.
Example
The brawny man lifted the heavy box with ease.
L'homme musclé a soulevé la boîte lourde avec facilité.
C2 adjective /həˈrɛtɪkəl/

heretical

hérétique
Meaning
Relating to or characterized by departure from accepted beliefs or standards, especially in religion.
Example
The priest condemned the book as heretical.
Le prêtre a condamné le livre comme hérétique.
C2 noun /liːdʒ/

liege

seigneur féodal
Meaning
A feudal lord entitled to allegiance and service; a loyal subject.
Example
The knight pledged loyalty to his liege.
Le chevalier prêta allégeance à son seigneur féodal.
C2 noun /ˈæmjʊlət/

Amulet

amulette; talisman
Meaning
an ornament or small piece of jewelry thought to give protection against evil, danger, or disease
Example
She wore a silver amulet around her neck for good luck.
Elle portait un amulette en argent autour du cou pour la chance.
C2 adjective /ˈbɒni/

Bonny

joli; charmant; joyeux
Meaning
cheerful; pretty; attractive
Example
The bonny child played happily in the garden.
L'enfant joli a joué joyeusement dans le jardin.
C2 noun /ˈtælɪzmən/

talisman

talisman
Meaning
An object believed to have magical powers or bring good luck.
Example
He always carried a small talisman in his pocket for luck.
Il portait toujours un petit talisman dans sa poche pour la chance.
C2 noun /ˈsækrɪsti/

sacristy

sacristie
Meaning
a room in a church where sacred vessels and vestments are kept
Example
The priest entered the sacristy before the mass began.
Le prêtre est entré dans la sacristie avant que la messe ne commence.
C2 adjective /ˌser.ɪˈməʊ.ni.əs/

ceremonious

cérémonieux et poli
Meaning
marked by formality, politeness, or strict observance of customs
Example
He gave her a ceremonious bow before entering the hall.
Il lui a fait une révérence cérémonieuse avant d'entrer dans la salle.
C2 noun /ˈɡɪni/

guinea

guinée (ancienne monnaie britannique en or)
Meaning
A former British gold coin; also refers to Guinea, a country in West Africa
Example
The antique coin was worth one guinea.
La pièce antique valait une guinée.
C2 noun /ˈkɒn.tɪ.nəns/

continence

continence
Meaning
self-restraint, especially regarding bodily functions or desires
Example
He practiced continence to maintain focus on his studies.
Il a pratiqué la continence pour maintenir son attention sur ses études.
C2 adjective /ˈhʌski/

husky

rauque
Meaning
deep, rough, and slightly hoarse voice; also refers to a strong and sturdy build
Example
He spoke in a husky voice after shouting all day.
Il a parlé d'une voix rauque après avoir crié toute la journée.
C2 verb /lʌɡˈʒʊrieɪt/

luxuriate

se livrer à des plaisirs
Meaning
to enjoy something in a self-indulgent way; to take pleasure in great comfort
Example
She luxuriated in the warm bubble bath after a long day.
Elle s'est luxurieuse dans le bain à bulles chaud après une longue journée.
C2 verb /ˈpɒntɪfɪkeɪt/

pontificate

parler ou agir de manière pompeuse ou dogmatique; officier en tant que pontife
Meaning
to speak or act in a pompous or dogmatic way; to officiate as a pontiff
Example
He pontificated on the importance of education for over an hour.
Il a pontifié pendant plus d'une heure sur l'importance de l'éducation.
C2 adjective /ˈvjuː.ləs/

Viewless

invisible; sans opinions
Meaning
invisible; having no views or opinions
Example
The ghost remained viewless to most people in the haunted house.
Le fantôme est resté invisible pour la plupart des gens dans la maison hantée.
C2 noun /ˈsɜːrtɪˌtjuːd/

certitude

certitude
Meaning
Absolute certainty or conviction about something.
Example
She spoke with certitude about the outcome of the case.
Elle a parlé avec certitude du résultat de l'affaire.
C2 noun /ˈræŋ.kər/

rancor

rancune
Meaning
A feeling of deep and bitter anger or resentment.
Example
There was a rancor between the two rivals that never faded.
Il y avait une rancune entre les deux rivaux qui ne s'est jamais estompée.
C2 noun /ˌriːkruːˈdɛsəns/

recrudescence

recrudescence
Meaning
a new outbreak or revival of something that had subsided, especially an undesirable condition
Example
Health officials warned of a recrudescence of measles in several districts.
Les responsables de la santé ont averti d'une recrudescence de la rougeole dans plusieurs districts.
C2 noun /mjuːˈnɪfəsəns/

munificence

munificence
Meaning
great generosity or lavish giving
Example
The hospital was built thanks to the munificence of a wealthy donor.
L'hôpital a été construit grâce à la munificence d'un riche donateur.
C2 noun /miːn/

mien

mine
Meaning
A person's appearance or manner, especially as an indication of their character or mood.
Example
His serious mien made everyone fall silent.
Son air sérieux fit taire tout le monde.
C2 noun /hɒtʃ pɒtʃ/

Hotch potch

pot-au-feu
Meaning
A mixed dish; a hodgepodge of ingredients cooked together
Example
She made a delicious hotch potch with rice, lentils, and vegetables.
Elle a préparé un délicieux hôtch potch avec du riz, des lentilles et des légumes.
C2 noun /taɪð/

tithe

dixième
Meaning
A tenth part of one’s income or produce, often given as a religious offering.
Example
He gave a tithe of his earnings to the church.
Il a donné un dixième de ses gains à l'église.
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 /kɒzˈmɒɡ.rə.fi/

cosmography

cosmographie
Meaning
the science or art of mapping the universe or cosmos
Example
Medieval scholars practiced cosmography to chart the stars and planets.
Les érudits médiévaux pratiquaient la cosmographie pour cartographier les étoiles et les planètes.
C2 noun /ˈspɛndˌθrɪft/

spendthrift

dépensier
Meaning
A person who spends money extravagantly or wastefully.
Example
The young prince was known as a spendthrift, wasting his fortune on lavish parties.
Le jeune prince était connu comme un dépensier, gaspillant sa fortune dans des fêtes somptueuses.
C2 noun /ˈsʌfrədʒɪst/

suffragist

suffragiste
Meaning
a person advocating the extension of suffrage, especially to women
Example
The suffragists organized rallies to demand voting rights for women.
Les suffragistes ont organisé des rassemblements pour revendiquer le droit de vote pour les femmes.
C2 noun /ˌmɑːrtəˈnɛt/

martinet

un tyran
Meaning
A strict disciplinarian who demands rigid adherence to rules.
Example
The new manager was such a martinet that even minor infractions were punished.
Le nouveau gestionnaire était un martinet au point que même les infractions mineures étaient punies.
C2 adjective /kəmˈbʌstɪbəl/

combustible

combustible
Meaning
Capable of catching fire and burning easily.
Example
Dry leaves are highly combustible.
Les feuilles sèches sont hautement combustibles.
C2 verb /ɛksˈproʊprieɪt/

expropriate

exproprier
Meaning
To take property from its owner, especially by authority or for public use.
Example
The government decided to expropriate the land for a new highway.
Le gouvernement a décidé d'exproprier la terre pour une nouvelle autoroute.
C2 verb /ˈsʌn.dər/

sunder

séparer
Meaning
To split apart or separate, especially with force.
Example
The war sundered families and friends.
La guerre a séparé des familles et des amis.
C2 noun /ˌser.əˈbreɪ.ʃən/

cerebration

cérébration
Meaning
the process of thinking or using the brain actively
Example
The lecture sparked intense cerebration among the students.
La conférence a suscité une intense cérébration parmi les étudiants.
C2 noun /ˈkɔːrpəskəl/

corpuscle

petite particule ou cellule, en particulier cellule sanguine
Meaning
a small particle or cell, especially a blood cell
Example
Red corpuscles carry oxygen throughout the body.
Les globules rouges transportent l'oxygène dans tout le corps.
C2 adjective /ˌɛpɪkjʊˈriːən/

epicurean

épicurien
Meaning
relating to the enjoyment of fine food, drink, and luxury
Example
The chef prepared an epicurean feast for the guests.
Le chef a préparé un festin épicurien pour les invités.
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 noun /ˈkwɪzlɪŋ/

quisling

traître
Meaning
A traitor who collaborates with an enemy force occupying their country.
Example
During the war, he was branded a quisling for aiding the invaders.
Pendant la guerre, il a été étiqueté comme un quisling pour avoir aidé les envahisseurs.
C2 adjective /kəˈnaɪ.vɪŋ/

conniving

rusé
Meaning
secretly scheming or plotting to help in wrongdoing
Example
He is a conniving politician who manipulates people for power.
C'est un homme politique rusé qui manipule les gens pour le pouvoir.
C2 adjective /ˈfjuːzəbl/

fusible

fusionnable
Meaning
Capable of being melted or fused.
Example
The engineer used a fusible alloy in the experiment.
L'ingénieur a utilisé un alliage fusionnable dans l'expérience.
C2 noun /ˈmɪn.i.ən/

minion

minion
Meaning
A follower or underling of a powerful person, especially a servile one.
Example
The dictator was surrounded by loyal minions who carried out his orders.
Le dictateur était entouré de ministres fidèles qui exécutaient ses ordres.
C2 noun /ˈdʒæz.mɪn/

Jesmine

jasmin
Meaning
a climbing shrub with fragrant white or yellow flowers
Example
The jasmine flowers filled the garden with their sweet fragrance.
Les fleurs de jasmin remplissaient le jardin de leur douce fragrance.
C2 noun /ˈnoʊmənˌkleɪtʃər/

nomenclature

nomenclature
Meaning
A system of names or terms used in a particular science, art, or field.
Example
The chemical nomenclature can be difficult for beginners to understand.
La nomenclature chimique peut être difficile à comprendre pour les débutants.
C2 noun /proʊˈdʒɛnɪtər/

progenitor

ancêtre
Meaning
a direct ancestor; a person or thing that originates something
Example
Researchers traced the custom back to a common progenitor.
Les chercheurs ont retracé la coutume jusqu'à un ancêtre commun.
C2 noun /ˈdʒæk.dɔː/

Jack-daw

petit corbeau
Meaning
a small gray and black bird of the crow family, known for its intelligence
Example
The jackdaw collected shiny objects for its nest.
Le jackdaw a collecté des objets brillants pour son nid.
C2 adjective /ɪˈnɪkwɪtəs/

iniquitous

iniquité
Meaning
grossly unfair and morally wrong
Example
Slavery was one of the most iniquitous practices in history.
L'esclavage était l'une des pratiques les plus iniquitous de l'histoire.
C2 adjective /ˌaɪdəˈlɑːtrɪəs/

idolatrious

idolâtre
Meaning
Excessively devoted or reverent towards idols or false gods.
Example
The ancient tribe was known for its idolatrious practices.
La tribu ancienne était connue pour ses pratiques idolâtres.
C2 verb /bɪˈfɪt/

befit

convenir à
Meaning
to be suitable for; to be appropriate to
Example
Formal attire befits the seriousness of the occasion.
Une tenue formelle convient au sérieux de l’occasion.
C2 noun /ɒmˈnɪpətəns/

omnipotence

omnipotence
Meaning
The quality of having unlimited power or authority.
Example
Many religions describe God’s omnipotence as absolute.
De nombreuses religions décrivent l'omnipotence de Dieu comme absolue.
C2 verb əˈmiːljəreɪt

ameliorate

améliorer, perfectionner
Meaning
To make better; improve or enhance something.
Example
The new policies are designed to ameliorate living conditions.
Les nouvelles politiques sont conçues pour améliorer les conditions de vie.
C2 adjective /ˈbɪz.ən.taɪn/ or /ˈbaɪ.zənˌtiːn/

byzantine

complexe
Meaning
Extremely complicated and detailed; relating to the Byzantine Empire or its style.
Example
The new tax regulations are so byzantine that few understand them.
Les nouvelles réglementations fiscales sont tellement complexes que peu de gens les comprennent.
C2 noun /ˈsuːpsɒ̃/

soupcon

une petite quantité
Meaning
a very small quantity of something; a trace
Example
She added just a soupcon of spice to the dish.
Elle a ajouté juste une petite quantité d'épices au plat.
C2 noun /ˈhækəlz/

hackles

les poils à l'arrière du cou d'un animal qui se dressent lorsqu'il est en colère ou alarmé; figurativement, des sentiments de colère ou de ressentiment
Meaning
the hairs on the back of an animal’s neck that rise when it is angry or alarmed; figuratively, feelings of anger or resentment
Example
His rude comment raised my hackles.
Son commentaire grossier a levé mes hackles.
C2 noun /sɛnˈtjʊəriən/

centurion

centurion
Meaning
A commander of a unit of one hundred soldiers in the ancient Roman army.
Example
The centurion led his men into battle with courage.
Le centurion a mené ses hommes au combat avec courage.
C2 noun /ˌsæv.wɑːr ˈfeər/

savoir-faire

habileté sociale
Meaning
The ability to act or speak appropriately in social situations; polished social skills.
Example
She handled the delicate situation with remarkable savoir-faire.
Elle a géré la situation délicate avec un remarquable savoir-faire.
C2 adjective /ˈvælərəs/

valorous

vaillant
Meaning
showing great courage and bravery
Example
The valorous soldier led his troop into battle without hesitation.
Le soldat vaillant a dirigé ses troupes au combat sans hésitation.
C2 noun /proʊˈbɑːsɪs/

proboscis

trompe
Meaning
The long, flexible nose of some animals, especially an elephant, or a tubular feeding and sucking organ in insects.
Example
The elephant used its proboscis to grab food.
L'éléphant a utilisé sa trompe pour attraper de la nourriture.
C2 adjective /bəˈnɛfɪsənt/

beneficent

bénévole, généreux
Meaning
generous or doing good
Example
The beneficent leader donated funds to build a hospital.
Le leader bénéfique a donné des fonds pour construire un hôpital.
C2 noun /luːˈbrɪsɪti/

lubricity

lubrification
Meaning
the quality of being slippery or smooth; sometimes also refers to lewdness
Example
The lubricity of the surface made it difficult to walk on.
La lubrification de la surface rendait la marche difficile.
C2 adjective /ˈtɛnɪbrəs/

tenebrous

ténébreux
Meaning
dark, shadowy, or obscure
Example
The cave was damp and tenebrous, filled with eerie sounds.
La grotte était humide et ténébreuse, remplie de bruits étranges.
C2 verb /prɪˈpɒndəreɪt/

preponderate

prépondérer
Meaning
To be greater in influence, weight, or number.
Example
In the debate, logical arguments preponderated over emotional appeals.
Dans le débat, les arguments logiques ont prépondéré sur les appels émotionnels.
C2 noun /ˈsʌbtrəˌhɛnd/

subtrahend

minuende
Meaning
a number that is to be subtracted from another number
Example
In the equation 10 - 4, the number 4 is the subtrahend.
Dans l'équation 10 - 4, le nombre 4 est le minuende.
C2 adjective /ˈlæŋɡwɪd/

Languid

languide; paresseux; faible
Meaning
lacking energy or vitality; slow and relaxed; weak or faint
Example
After the long journey, she felt languid and needed to rest.
Après le long voyage, elle se sentait languissante et avait besoin de repos.
C2 noun /ˌdɛrɪˈlɪkʃən/

dereliction

négligence
Meaning
the state of being abandoned; neglect of duty
Example
The officer was charged with dereliction of duty.
L'officier a été accusé de négligence dans l'accomplissement de son devoir.
C2 verb /kəˈmɪŋɡəl/

commingle

mélanger
Meaning
To mix or blend different things together.
Example
The charity does not commingle donations with operational funds.
La charité ne mélange pas les dons avec les fonds opérationnels.
C2 noun /ˈpætwɑː/

patois

patois
Meaning
a regional or social dialect, especially one considered nonstandard or informal
Example
The guide slipped into local patois when chatting with the fishermen.
Le guide a commencé à parler en patois local en discutant avec les pêcheurs.
C2 noun /ˈpɛtjʊləns/

petulance

pétulance
Meaning
The quality of being childishly sulky or bad-tempered.
Example
His petulance during the meeting annoyed everyone.
Sa pétulance pendant la réunion a agacé tout le monde.
C2 adjective /ˈbɪloʊɪŋ/

billowing

ondulant
Meaning
Describing something that swells or surges outward in waves or large masses.
Example
She walked through the billowing curtains.
Elle marcha à travers les rideaux ondulants.
C2 adjective /ˈɪrˌsplɪtɪŋ/

earsplitting

assourdissant
Meaning
extremely loud or piercing sound
Example
The earsplitting noise of the fire alarm startled everyone.
Le bruit assourdissant de l'alarme incendie a surpris tout le monde.
C2 noun ˈtɪl.ɪdʒ

tillage

labours agricoles
Meaning
The preparation of land for growing crops.
Example
Excessive tillage can lead to soil erosion.
Un excès de travail du sol peut entraîner de l'érosion.
C2 adjective /ˈnjuː.mər.ə.bəl/

Numerable

comptable; numérable
Meaning
capable of being counted; countable
Example
The stars in the sky are not numerable.
Les étoiles dans le ciel ne sont pas numérables.
C2 noun /ˈreɪdɪks/

radix

base
Meaning
the base or root of something; the number on which a system of numeration is built
Example
In mathematics, the decimal system has a radix of ten.
En mathématiques, le système décimal a une base de dix.
C2 noun /ˈlɪθəˌɡræf/

lithograph

lithographie (impression sur pierre)
Meaning
a print made by lithography, often artistic
Example
The museum displayed a rare lithograph from the 19th century.
Le musée a exposé une lithographie rare du 19e siècle.
C2 noun /səbˈmɜːrʒən/

submersion

submersion
Meaning
the state of being under water
Example
The submersion of the fields lasted for several days after the heavy rain.
La submersion des champs a duré plusieurs jours après la forte pluie.
C2 adjective /ˈeksɪkrəbl/

execrable

exécrable
Meaning
Extremely bad or unpleasant.
Example
The movie was so execrable that many people left the theater early.
Le film était tellement exécrable que beaucoup de gens sont partis tôt du cinéma.
C2 noun /ˈaɪ.ərn.wʊd/

Ironwood

bois de fer
Meaning
a hard, dense wood from various trees; also the tree itself that produces small flowers
Example
The ironwood tree blooms with tiny white flowers.
L'arbre de bois de fer fleurit avec de petites fleurs blanches.
C2 noun /ˈfaɪləm/

phylum

une catégorie principale dans la classification biologique, au-dessus de la classe et en dessous du règne
Meaning
a primary category in the biological classification of organisms, above class and below kingdom
Example
Humans belong to the phylum Chordata.
Les humains appartiennent au phylum Chordata.
C2 adjective /ˌɪnˌɑːpərˈtuːn/

inopportune

moment inopportun
Meaning
Happening at a bad or inconvenient time.
Example
His call came at the most inopportune moment.
Son appel est arrivé au moment le plus inopportun.
C2 adjective /ɜːrˈbeɪn/

urbane

urbain
Meaning
showing polished manners, refinement, and sophistication
Example
He was an urbane gentleman who charmed everyone at the party.
C'était un gentleman urbain qui a charmé tout le monde à la fête.
C2 noun /kəmˈpɒz.ɪ.tər/

Compositor

compositeur
Meaning
a person who arranges type for printing or creates musical compositions
Example
The compositor carefully arranged the text for the newspaper.
Le compositeur a soigneusement organisé le texte pour le journal.
C2 adjective /ˈtɪtjələr/

titular

titulaire
Meaning
holding a title or position in name only without real power; relating to the title of a work
Example
She is the titular head of the committee, but decisions are made by the coordinator.
Elle est la titulaire du comité, mais les décisions sont prises par le coordinateur.
C2 noun /ˈfɔːrˌnɑːlɪdʒ/

foreknowledge

prémonition
Meaning
Awareness of something before it happens or exists.
Example
The prophet claimed to have foreknowledge of the event.
Le prophète a affirmé avoir la prémonition de l'événement.
C2 noun /ˈkɔːfər/

coffer

coffre
Meaning
A strongbox or small chest for holding valuables, often used metaphorically for funds or financial reserves.
Example
The city's coffers were drained after the costly project.
Les coffres de la ville ont été vidés après le projet coûteux.
C2 adjective /ˈsækərɪn/

saccharine

bonheur
Meaning
Excessively sweet or sentimental.
Example
His saccharine smile seemed insincere.
Elle ne pouvait pas cacher son bonheur lorsqu'elle a reçu le prix.
C2 noun /boʊl/

boll

capsule arrondie de graines (comme celles de coton ou de lin)
Meaning
The rounded seed capsule of plants such as cotton or flax.
Example
The farmer examined the cotton boll to check its quality.
L'agriculteur a examiné le bol de coton pour vérifier sa qualité.
C2 noun /ˈlaɪər/

lier

menteur
Meaning
a person who tells lies; an alternative spelling of liar
Example
No one trusted him because he was known as a habitual lier.
Personne ne lui faisait confiance parce qu’il était un menteur habituel.
C2 verb /ˌfɔːrˈrʌn/

forerun

précéder
Meaning
To go before; to precede in time, place, or action.
Example
Dark clouds often forerun a storm.
Les nuages sombres annoncent souvent une tempête.