financier
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C1 noun /fɪˈnænʃɪər/

financier

financier
Meaning
a person who manages large amounts of money or investments
Example
The financier advised the company on its investments.
Le financier a conseillé l'entreprise sur ses investissements.
C1 noun /ˈfæk.ʃən/

Faction

faction
Meaning
a small organized dissenting group within a larger one
Example
Different factions within the party disagreed about the new policy.
Différentes factions au sein du parti étaient en désaccord sur la nouvelle politique.
C1 noun /ˈfɔːrdʒər/

forger

falsificateur
Meaning
a person who makes fake documents, artworks, or signatures
Example
The police arrested a forger who had been selling counterfeit paintings.
La police a arrêté un falsificateur qui vendait des peintures contrefaites.
C1 noun /ˈfɪɡjərˌhɛd/

figurehead

tête symbolique
Meaning
a nominal leader with no real power; a symbolic head
Example
The king was merely a figurehead with no real authority.
Le roi était simplement un chef symbolique sans pouvoir réel.
C1 adjective /ˈfɔːrmətɪv/

formative

formateur
Meaning
Having a lasting influence on a person's development or character.
Example
Childhood is often described as a formative stage in life.
L'enfance est souvent décrite comme une étape formatrice dans la vie.
C1 noun/verb /ˈfʌrəʊ/

furrow

sillon
Meaning
A long narrow trench made in the ground by a plow; to make wrinkles or grooves.
Example
The farmer plowed furrows in the field.
L'agriculteur a tracé des sillons dans le champ.
C1 noun /ˈfʌŋɡəs/

fungus

champignon
Meaning
a spore-producing organism feeding on organic matter, including molds, yeast, and mushrooms
Example
A strange fungus was growing on the old tree.
Un étrange champignon poussait sur l'arbre ancien.
C1 noun, verb /ˈfɛrɪt/

ferret

furet, chercher ou découvrir quelque chose de manière persistante
Meaning
a small domesticated animal used for hunting; to search or uncover something persistently
Example
He ferreted out the hidden documents.
Il a découvert les documents cachés.
C1 adjective + noun ˈfeɪvərəbəl klaɪˈmætɪk kənˈdɪʃənz

favorable climatic conditions

conditions climatiques favorables
Meaning
Weather conditions that are suitable and beneficial for growth or development
Example
Winter offers favorable climatic conditions for farming.
L'hiver offre des conditions climatiques favorables à l'agriculture.
C1 adjective /ˈflaʊəri/

flowery

fleuri / orné
Meaning
Full of flowers or overly elaborate in style or language.
Example
She wrote a flowery letter filled with poetic phrases.
Elle a écrit une lettre fleurie remplie de phrases poétiques.
C1 verb /fɔːrˈɡoʊ/

forego

renoncer
Meaning
to decide not to do or have something pleasant or valuable
Example
She decided to forego dessert to maintain her diet.
Elle a décidé de renoncer au dessert pour maintenir son régime.
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 adjective /ˈfliː.tɪŋ/

fleeting

éphémère
Meaning
Lasting for a very short time; passing quickly.
Example
Happiness can be fleeting, so cherish every moment.
Le bonheur peut être éphémère, alors chérissez chaque moment.
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 adjective fæsˈtɪd.i.əs

fastidious

méticuleux
Meaning
Very attentive to and concerned about accuracy and detail.
Example
She is fastidious about maintaining cleanliness.
Elle est méticuleuse en ce qui concerne le maintien de la propreté.
C1 adjective /ˈfɪs.kəl/

fiscal

fiscal
Meaning
Relating to government revenue, especially taxes, or public money management.
Example
The government introduced new fiscal policies to control inflation.
Le gouvernement a introduit de nouvelles politiques fiscales pour contrôler l'inflation.
C1 noun ˌfɔːtɪfɪˈkeɪʃn

fortification

fortification
Meaning
A defensive wall or other reinforcement built to strengthen a place against attack.
Example
The fortifications protected the city.
Les fortifications ont protégé la ville.
C1 noun /ˈfɒdər/

fodder

fourrage
Meaning
food for livestock such as cattle, horses, or sheep; also something considered of little value but used to supply a demand
Example
The farmer stored enough fodder for the cattle to last through winter.
Le fermier a stocké suffisamment de fourrage pour que le bétail ait de quoi se nourrir pendant l'hiver.
C1 noun/verb ˈfɒr.ɪdʒ

forage

fourrage, chercher de la nourriture
Meaning
Food for horses and cattle, especially dried hay or feed; to search for food.
Example
Animals forage for food during the winter months.
Les animaux cherchent leur nourriture pendant les mois d'hiver.
C1 verb /ˈflɪk.ər/

flicker

clignoter
Meaning
to shine unsteadily or waver between light and dark
Example
The candle flickered in the wind.
La bougie clignotait dans le vent.
C1 adjective /ˌfɑːrˈfetʃt/

farfetched

improbable ou peu probable
Meaning
unlikely to happen or be true; improbable
Example
His explanation for being late sounded farfetched.
Son explication pour son retard semblait invraisemblable.
C1 verb /ˈfɔːrfɪt/

forfeit

perdre, renoncer comme pénalité
Meaning
to lose or give up something, usually as a penalty for wrongdoing
Example
He had to forfeit the match after breaking the rules.
Il a dû abandonner le match après avoir enfreint les règles.
C1 verb /fret/

fret

s'inquiéter
Meaning
to worry or be anxious; to be troubled
Example
Don't fret about the exam results.
Ne t'inquiète pas pour les résultats de l'examen.
C1 noun flɛər

flair

talent naturel
Meaning
A natural ability to do something well.
Example
She has a flair for design, always creating visually stunning work.
Elle a un flair pour le design, créant toujours un travail visuellement impressionnant.
C1 verb /fɔrˈstɔl/

forestall

prévenir à l'avance
Meaning
to prevent by acting in advance; to anticipate and counter
Example
They forestalled the crisis by taking immediate action.
Ils ont évité la crise en prenant des mesures immédiates.
C1 verb /ˈfʌmbəl/

fumble

brouiller
Meaning
to handle something clumsily or to make mistakes while doing something
Example
He fumbled with the keys and dropped them on the floor.
Il a trébuché avec les clés et les a laissées tomber par terre.
C1 verb /fɔːrˈtɛl/

foretell

prédire
Meaning
to predict or announce something before it happens
Example
The old man claimed he could foretell the future.
L'homme âgé a affirmé qu'il pouvait prédire l'avenir.
C1 verb /fɔːrˈɡoʊ/

forgo

renoncer
Meaning
to decide not to do or have something
Example
She decided to forgo dessert to maintain her diet.
Elle a décidé de renoncer au dessert pour maintenir son régime.
C1 noun /ˈfɔː.nə/

fauna

la vie animale d'une région particulière
Meaning
The animal life of a particular region, habitat, or geological period.
Example
The fauna of the African savannah includes lions and elephants.
La faune de la savane africaine comprend des lions et des éléphants.
C1 noun /fɪkˈseɪ.ʃən/

fixation

fixation ou intérêt obsessionnel pour quelque chose ou quelqu'un
Meaning
An obsessive interest in or feeling about someone or something.
Example
His fixation on perfectionism delayed project completion.
Sa fixation sur le perfectionnisme a retardé l'achèvement du projet.
C1 adjective /fəˈnætɪkəl/

fanatical

fanatique
Meaning
showing extreme enthusiasm or obsession
Example
She has a fanatical interest in collecting vintage stamps.
Elle a un intérêt fanatique pour la collection de timbres anciens.
C1 noun /fəˈsɑːd/

facade

façade
Meaning
The front of a building; a false or superficial appearance
Example
The building's glass facade reflected the sunset.
La façade en verre du bâtiment reflétait le coucher du soleil.
C1 noun ˈfɔː.saɪt

foresight

prévision
Meaning
The ability to predict or the action of predicting what will happen or be needed in the future.
Example
His foresight helped the company avoid financial losses.
Sa prévision a aidé l'entreprise à éviter des pertes financières.
C1 noun /ˈfjʊərɔːr/

furor

tumulte
Meaning
An outbreak of public anger or excitement.
Example
The politician's remarks created a furor in the media.
Les remarques du politicien ont créé un furor dans les médias.
C1 noun /ˈfæm.ɪn/

Famine

famine
Meaning
extreme scarcity of food; a period when food is extremely scarce
Example
The severe drought led to widespread famine in the region.
La grave sécheresse a provoqué une famine généralisée dans la région.
C1 noun /ˈfɔːrˌbɛər/

forebear

ancêtre
Meaning
An ancestor, especially one who lived a long time ago.
Example
He often speaks of his forebears with great respect.
Il parle souvent de ses ancêtres avec beaucoup de respect.
C1 adjective /ˈfruː.ɡəl/

Frugal

économe; parcimonieux
Meaning
economical; thrifty;
Example
She is very frugal and saves money by buying only necessary items.
Elle est très économe et économise de l'argent en achetant uniquement les articles nécessaires.
C1 verb /flɑp/

flop

échec
Meaning
to fall or move heavily and clumsily; to fail completely
Example
The new movie flopped at the box office.
Le nouveau film a échoué au box-office.
C1 noun /ˈfɔːrwɜːrd/

foreword

préface
Meaning
a short introduction at the beginning of a book, typically written by someone other than the author
Example
The foreword of the book was written by a famous historian.
La préface du livre a été écrite par un historien célèbre.
C1 verb /ˈfɪdʒɪt/

fidget

se tortiller, être agité
Meaning
to make small movements, especially because of nervousness or impatience
Example
The child began to fidget during the long lecture.
L'enfant a commencé à bouger pendant la longue conférence.
C1 noun /fiˈæs.koʊ/

fiasco

échec total
Meaning
a complete failure, especially a ludicrous or humiliating one
Example
The event turned into a complete fiasco due to poor planning.
L'événement est devenu un échec total à cause d'une mauvaise planification.
C1 adjective /ˌfɑːrˈfɛtʃt/

far-fetched

farfelu
Meaning
unlikely to happen or be true; improbable
Example
His explanation for being late was a bit far-fetched.
Son explication pour être en retard était un peu farfelue.
C1 noun fɔːlt ˈtɒl.ər.əns

fault-tolerance

tolérance aux pannes
Meaning
The ability of a system to continue operating properly in the event of the failure of some of its components.
Example
Fault-tolerance ensures dependable systems.
La tolérance aux pannes assure des systèmes fiables.
C1 adjective /ˈfiːbl/

feeble

faible, fragile
Meaning
lacking physical strength or vigor; weak
Example
After the illness, she felt too feeble to stand.
Après la maladie, elle se sentait trop faible pour se lever.
C1 noun /fɔːn/

Fawn

faon
Meaning
a young deer; a light yellowish-brown color
Example
The mother deer protects her fawn from predators.
La mère cerf protège son faon des prédateurs.
C1 adjective /ˈfɔːrθˌraɪt/

forthright

direct
Meaning
Direct and honest in speech or behavior; straightforward.
Example
She was forthright in her criticism of the policy.
Elle a été directe dans sa critique de la politique.
C1 noun /ˌfɜːrmənˈteɪʃən/

fermentation

fermentation, changement chimique par levures ou bactéries
Meaning
a chemical process by which substances like sugar are converted into alcohol or acids using microorganisms
Example
The fermentation of grapes produces wine.
La fermentation des raisins produit du vin.
C1 adjective ˈfɔːr.mɪ.də.bəl

formidable

formidable
Meaning
Inspiring fear or respect through being impressively large, powerful, intense, or capable.
Example
The boxer was a formidable opponent in the ring.
Le boxeur était un adversaire formidable sur le ring.
C1 noun /ˈfɔːrɡraʊnd/

foreground

premier plan
Meaning
the part of a scene that is nearest to and in front of the viewer
Example
The flowers in the foreground brightened the picture.
Les fleurs au premier plan ont illuminé l'image.
C1 noun /frəˈdʒɪl.ɪ.ti/

fragility

fragilité
Meaning
The quality of being fragile; delicateness.
Example
The cornea's fragility increases with rubbing.
La fragilité de la cornée augmente avec le frottement.
C1 noun ˌfiː.zəˈbɪl.ə.ti

feasibility

faisabilité
Meaning
The state or degree of being easily or conveniently done; possibility.
Example
The company conducted a feasibility study before launching the project.
L'entreprise a mené une étude de faisabilité avant de lancer le projet.
C1 noun /ˈfaɪər.wɔːl/

firewall

pare-feu
Meaning
A network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules.
Example
A firewall protects networks from cyber-attacks.
Un pare-feu protège les réseaux des cyberattaques.
C1 noun /ˈfɔːrmən/

foreman

personne en charge d'un groupe de travailleurs, en particulier dans une usine ou sur un chantier
Meaning
a person in charge of a group of workers, especially in a factory or construction site
Example
The foreman supervised the workers on the construction site.
Le chef de chantier a supervisé les ouvriers sur le site de construction.
C1 noun /ˈfɔːrˌθɔːt/

forethought

prévoyance
Meaning
careful consideration of what will be necessary or may happen in the future
Example
With a little forethought, we could have avoided the problem.
Avec un peu de prévoyance, nous aurions pu éviter le problème.
C1 noun /ˈfɪʃ.ər/

fissure

fissure
Meaning
a long, narrow opening or crack in a surface or object
Example
The earthquake caused a deep fissure in the road.
Le tremblement de terre a provoqué une fissure profonde dans la route.
C1 adjective /fəˈnætɪk/

Fanatic

fanatique
Meaning
extremely passionate about something; showing excessive enthusiasm or devotion
Example
He is a fanatic supporter of his football team.
Il est un fanatique supporter de son équipe de football.
C1 adjective /ˈfleɪɡrənt/

flagrant

flagrant et clairement erroné
Meaning
shockingly noticeable or evident; glaringly wrong
Example
It was a flagrant violation of the rules.
C'était une violation évidente des règles.
C1 adjective /frəˈtɜːrnəl/

fraternal

fraternel
Meaning
Relating to brothers or brotherhood; friendly and supportive.
Example
The two nations maintain a fraternal relationship.
Les deux nations maintiennent une relation fraternelle.
C1 noun /ˈfɔːreɪ/

foray

incursion / première tentative
Meaning
A sudden short attack or attempt, especially into new activity or territory.
Example
The company made its first foray into the international market.
L'entreprise a fait sa première incursion sur le marché international.
C1 adjective /ˈfeɪt.fəl/

fateful

décisif ou fatal
Meaning
having significant or disastrous consequences
Example
Their fateful decision changed the course of history.
Leur décision décisive a changé le cours de l'histoire.
C1 verb /fɔːrˈseɪk/

forsake

abandonner
Meaning
to abandon or give up something or someone
Example
He decided not to forsake his old friends despite his success.
Il a décidé de ne pas abandonner ses vieux amis malgré son succès.
C1 noun/verb /freɪ/

fray

dispute, s'effilocher
Meaning
As a noun, a fight or heated dispute; as a verb, to unravel or wear out through friction.
Example
He tried to stay calm, but his nerves began to fray during the argument.
Il a essayé de rester calme, mais ses nerfs ont commencé à s'effilocher pendant la dispute.
C1 adjective /ˈfɔːrsəbl/

forcible

forcé
Meaning
Done by force; using physical strength or power.
Example
The police made a forcible entry into the house.
La police a fait une entrée forcée dans la maison.
C1 noun /ˈfɔːr.tɪ.tjuːd/

fortitude

fortitude
Meaning
Courage in pain or adversity; mental and emotional strength in facing difficulty.
Example
She faced adversity with great fortitude.
Elle a affronté les adversités avec une grande force de caractère.
C1 noun /ˈfɛlən/

felon

criminel
Meaning
a person who has committed a serious crime
Example
The felon was sentenced to ten years in prison.
Le criminel a été condamné à dix ans de prison.
C1 noun /fəˈtæləti/

fatality

fatalité
Meaning
An occurrence of death by accident, disaster, or violence.
Example
The accident resulted in one fatality.
L'accident a entraîné une fatalité.
C1 noun /ˈfæs.ɪt/

facet

facette, aspect, partie
Meaning
One of the many aspects or features of something; a particular part or element of something.
Example
Every facet of the project was carefully analyzed.
Chaque facette du projet a été soigneusement analysée.
C1 verb /ˈfɜːr.tɪ.laɪz/

fertilize

fertiliser
Meaning
to make soil or land more fertile by adding substances
Example
Farmers fertilize the fields to increase crop yield.
Les agriculteurs fertilisent les champs pour augmenter le rendement des récoltes.
C1 adjective /frɔːt/

fraught

chargé
Meaning
Filled with or likely to result in something undesirable.
Example
The negotiations were fraught with tension and uncertainty.
Les négociations étaient chargées de tension et d'incertitude.
C1 adjective /ˌfʊl ˈbɒd.id/

full-bodied

à saveur intense
Meaning
Having a strong, rich, and robust quality, especially of wine, coffee, or voice.
Example
He prefers a full-bodied red wine with his dinner.
Il préfère un vin rouge à saveur intense avec son dîner.
C1 adjective /ˈflɪmzi/

flimsy

fragile
Meaning
weak, fragile, or lacking in strength; not convincing
Example
The chair was too flimsy to support his weight.
La chaise était trop fragile pour supporter son poids.
C1 noun /fiːnd/

fiend

démon, personne malfaisante
Meaning
an evil spirit or demon; a wicked or cruel person; someone obsessed with a particular thing
Example
He is a real fiend when it comes to solving puzzles.
Il est un vrai démon lorsqu'il s'agit de résoudre des énigmes.
C1 noun /fɪlθ/

filth

saleté
Meaning
dirty or disgusting matter; moral corruption
Example
The streets were full of filth after the storm.
Les rues étaient pleines de saleté après la tempête.
C1 adjective /ˈfaɪə.ri/

Fiery

enflammé; passionné; irritable
Meaning
burning; passionate; hot-tempered; showing strong emotion
Example
She has a fiery temper that flares up quickly.
Elle a un tempérament enflammé qui s'emporte rapidement.
C1 adjective /frəˈnɛtɪk/

frenetic

frenétique
Meaning
Fast and energetic in a wild or uncontrolled way.
Example
The stock market experienced frenetic trading after the announcement.
Le marché boursier a connu des transactions frénétiques après l'annonce.
C1 adjective /ˈfæn.sɪ.fəl/

fanciful

fantaisiste, irréaliste
Meaning
overimaginative, unrealistic, or whimsical
Example
The story was too fanciful to be true.
L'histoire était trop fantaisiste pour être vraie.
C1 adjective /ˈfɪk.əl/

Fickle

changeant; instable; capricieux;
Meaning
changeable; inconstant; liable to sudden unpredictable change
Example
His fickle nature made it hard to trust his promises.
Sa nature changeante a rendu difficile la confiance dans ses promesses.
C1 noun /fəˌsɪlɪˈteɪʃən/

facilitation

facilitation
Meaning
The action of facilitating or making an action or process easier or helping bring about an outcome.
Example
Her facilitation made the meeting run smoothly.
Sa facilitation a permis à la réunion de se dérouler sans heurts.
C1 adjective /fɪkˈtɪʃəs/

fictitious

fictif, faux
Meaning
not real or true; imaginary or fabricated
Example
The story he told was entirely fictitious.
L'histoire qu'il a racontée était entièrement fictive.
C1 noun /ˈfjuː.tʃə.rɪst/

futurist

futuriste
Meaning
A person who studies or predicts the future, especially trends in science, technology, or society.
Example
The futurist predicted major changes in transportation within the next decade.
Le futuriste a prédit d'importants changements dans les transports au cours de la prochaine décennie.
C1 noun /ˈfoʊliɪdʒ/

foliage

feuillage
Meaning
The leaves of a plant, collectively.
Example
The autumn foliage looked stunning in the park.
Le feuillage d'automne était impressionnant dans le parc.
C1 verb /ˈflaʊndər/

flounder

tituber
Meaning
To struggle or stagger clumsily; to experience difficulty or confusion.
Example
He floundered in the interview when asked difficult questions.
Il a échoué dans l'entretien lorsqu'on lui a posé des questions difficiles.
C1 noun /ˈflæt.ər.i/

Flattery

flatterie
Meaning
excessive and insincere praise, given especially to further one's own interests
Example
His constant flattery made everyone suspicious of his true motives.
Sa flatterie constante a poussé tout le monde à douter de ses véritables intentions.
C1 adjective /fəˈroʊ.ʃəs/

Ferocious

féroce, sauvage, cruel
Meaning
savagely fierce, cruel, or violent; extremely aggressive
Example
The ferocious storm destroyed many houses in the coastal area.
La tempête féroce a détruit de nombreuses maisons dans la zone côtière.
C1 noun ˈflɔː.rə ænd ˈfɔː.nə

flora and fauna

flore et faune
Meaning
The plants and animals of a particular region, habitat, or geological period.
Example
The Galápagos Islands have unique flora and fauna.
Les îles Galápagos ont une flore et faune uniques.
C1 noun /ˈfɛtɪʃ/

fetish

dévotion excessive ou irrationnelle
Meaning
an excessive or irrational devotion to something
Example
He has a fetish for collecting rare stamps.
Il a un fétiche pour collectionner des timbres rares.
C1 adjective /ˈfiːlaɪn/

feline

lié aux chats
Meaning
relating to or characteristic of cats
Example
Her movements were graceful and almost feline in their elegance.
Ses mouvements étaient gracieux et presque félins dans leur élégance.
C1 noun /ˈfɛərˌɡraʊndz/

fairgrounds

terrain de foire
Meaning
A designated area where fairs, exhibitions, and amusement events are held
Example
The town set up rides and stalls at the fairgrounds for the annual festival.
La ville a installé des manèges et des stands sur le terrain de foire pour le festival annuel.
C1 adjective /ˈfænsiːd/

fancied

imaginé, désiré
Meaning
imagined, desired, or believed without evidence
Example
He is a fancied suitor in the eyes of the young lady.
Il est un prétendant imaginé aux yeux de la jeune fille.
C1 adjective /ˈfruːt.ləs/

Fruitless

inutile; vain; futile;
Meaning
unsuccessful; futile; pointless;
Example
After hours of searching, their efforts proved fruitless.
Après des heures de recherche, leurs efforts se sont avérés inutiles.
C1 noun, verb /fɔːrd/

ford

gué
Meaning
A shallow place in a river where one can cross; to cross a river at such a place.
Example
The travelers decided to ford the river at dawn.
Les voyageurs ont décidé de traverser la rivière par un gué à l'aube.
C1 noun /fəˈrɒs.ə.ti/

ferocity

férocité, violence, intensité
Meaning
The state or quality of being ferocious; extreme fierceness or violence.
Example
The storm's ferocity was devastating.
La férocité de la tempête était dévastatrice.
C1 noun /ˌfɪɡjʊˈriːn/

figurine

figurine décorative
Meaning
a small ornamental statue or model of a human or animal
Example
She bought a porcelain figurine of a dancing ballerina.
Elle a acheté une figurine en porcelaine d'une ballerine dansante.
C1 adjective ˈflʌd proʊn

flood-prone

sujette aux inondations
Meaning
Susceptible to flooding; likely to experience floods frequently.
Example
Bangladesh is a flood-prone deltaic nation.
Le Bangladesh est une nation deltaïque sujette aux inondations.
C1 noun (plural of fungus) /ˈfʌndʒaɪ/

fungi

champignon
Meaning
a group of spore-producing organisms such as mushrooms, molds, and yeasts
Example
Fungi play an important role in breaking down organic matter in nature.
Les champignons jouent un rôle important dans la dégradation de la matière organique dans la nature.
C1 verb /fɔːˈbɛər/

forbear

s'abstenir
Meaning
To refrain from doing something; to show patience or self-control.
Example
She forbore from commenting on his mistake.
Elle s'est abstenue de commenter son erreur.
C1 noun fluˈɪd.ɪ.ti

fluidity

fluidité
Meaning
The ability of a substance to flow easily; smooth and graceful movement or style.
Example
The fluidity of the dancer's movements was mesmerizing.
La fluidité des mouvements de la danseuse était envoûtante.
C1 noun/adjective /fɔːrˈboʊdɪŋ/

foreboding

présage inquiétant
Meaning
A feeling that something bad will happen; ominous.
Example
She felt a deep sense of foreboding as she entered the abandoned house.
Elle ressentit une profonde sensation de présage inquiétant en entrant dans la maison abandonnée.
C1 noun /ˈfreɪlti/

frailty

fragilité
Meaning
The condition of being weak, delicate, or easily broken.
Example
Old age often comes with physical frailty.
La vieillesse vient souvent avec une fragilité physique.
C1 noun ˈfɜːr.vɚ

fervor

passion ou enthousiasme
Meaning
Strong passion or enthusiasm for something.
Example
He spoke with great fervor about his vision for the company.
Il a parlé avec beaucoup de ferveur de sa vision pour l'entreprise.
C1 noun /ˌfæb.rɪˈkeɪ.ʃən/

fabrication

invention fausse
Meaning
The invention of false or misleading information; a lie or falsehood.
Example
The article was full of fabrication and misleading claims.
L'article était plein d'inventions fausses et de réclamations trompeuses.
C1 adjective /ˈfeɪl.seɪf/

fail-safe

antifaille
Meaning
designed to prevent failure or accidents; guaranteed to work correctly
Example
The engineers installed a fail-safe mechanism in the nuclear plant.
Les ingénieurs ont installé un mécanisme antifaille dans la centrale nucléaire.
C1 noun /ˈfɪʃˌmʌŋ.ɡər/

fishmonger

poissonnier
Meaning
a person or store that sells fish
Example
I bought fresh salmon from the local fishmonger.
J'ai acheté du saumon frais chez le poissonnier local.
C1 noun/adjective ˈflɛdʒ.lɪŋ

fledgling

novice, inexpérimenté, nouvellement établi
Meaning
New, inexperienced, newly established.
Example
The fledgling startup needs investment.
La startup novice a besoin d'investissement.
C1 adjective /ˈfuːlpruːf/

foolproof

infaillible
Meaning
Designed to be very easy to use or understand, leaving no possibility of failure or error.
Example
The new software has a foolproof installation process.
Le nouveau logiciel a un processus d'installation infaillible.
C1 adjective /ˈfɜːrtɪv/

furtive

furtif
Meaning
Attempting to avoid notice or attention, typically because of guilt or a belief that discovery would lead to trouble.
Example
He cast a furtive glance at the door before leaving.
Il lança un regard furtif vers la porte avant de partir.
C1 verb /ˈflʌtər/

flutter

battre des ailes / trembler
Meaning
to move or flap quickly and lightly; to beat or wave with small rapid motions
Example
The butterfly began to flutter its wings in the sunlight.
Le papillon a commencé à battre des ailes sous le soleil.
C1 verb ˈflʌk.tʃu.eɪt

fluctuate

fluctuer
Meaning
To regularly increase or decrease.
Example
Stock prices fluctuate due to market conditions.
Les prix des actions fluctuent en raison des conditions du marché.
C1 adjective /ˈflæɡɪŋ/

flagging

faiblir, se fatiguer ou perdre de l'enthousiasme
Meaning
becoming tired, weaker, or less enthusiastic
Example
After hours of work, his energy was flagging.
Après des heures de travail, son énergie était en baisse.
C1 noun /ˈfɔɪeɪr/

foyer

hall d'entrée
Meaning
An entrance hall or lobby in a building.
Example
The guests waited in the hotel foyer before checking in.
Les invités ont attendu dans le hall de l'hôtel avant de s'enregistrer.
C1 noun /ˈfɛləni/

felony

crime grave
Meaning
a serious crime, usually punishable by imprisonment for more than one year
Example
He was convicted of a felony and sentenced to ten years in prison.
Il a été reconnu coupable d'un crime grave et condamné à dix ans de prison.
C1 adjective /ˈfræɡməntɪd/

fragmented

fragmenté, divisé, incomplet
Meaning
Having been broken into fragments; disjointed or incomplete.
Example
The information was fragmented and difficult to understand.
L'information était fragmentée et difficile à comprendre.
C1 noun /ˈfræk.tʃər/

Fracture

fracture; cassure d'os
Meaning
the cracking or breaking of a hard object or material; a break in a bone
Example
The doctor confirmed that he had a hairline fracture in his wrist.
Le docteur a confirmé qu'il avait une fracture du poignet.
C1 noun /ˈfjuː.də.lɪ.zəm/

feudalism

féodalisme
Meaning
the social system in medieval Europe in which people worked and fought for nobles who gave them protection and land in return
Example
Feudalism shaped the political structure of medieval Europe.
Le féodalisme a façonné la structure politique de l'Europe médiévale.
C1 adjective ˈfjuː.taɪl

futile

futile
Meaning
Incapable of producing any useful result; pointless.
Example
His attempts to change the situation were futile.
Ses tentatives de changer la situation étaient futiles.
C1 noun /ˈfoʊ.kəs ˈtræk.ɪŋ/

focus tracking

suivi de la concentration
Meaning
A technique of monitoring and maintaining attention on specific tasks or goals.
Example
Proper focus tracking improves productivity.
Un bon suivi de la concentration améliore la productivité.
C1 adjective, adverb (informal, vulgar) /ˈfʌkɪŋ/

fucking

putain (mot vulgaire pour l'emphase)
Meaning
used for emphasis, often expressing anger or frustration (vulgar slang)
Example
It was a fucking disaster!
C'était un putain de désastre!
C1 noun /ˈfren.zi/

Frenzy

frénésie
Meaning
a state or period of uncontrolled excitement or wild behavior; intense activity
Example
The announcement of the sale created a shopping frenzy at the mall.
L'annonce de la vente a créé une frénésie de shopping au centre commercial.
C1 noun /ˈflɔː.rə/

flora

la vie végétale trouvée dans une région ou un habitat particulier
Meaning
The plant life found in a particular region or habitat.
Example
The Amazon rainforest is home to a vast flora diversity.
La forêt amazonienne abrite une grande diversité de flore.
C1 noun /ˈfɔːrˌbɛərz/

forebears

ancêtres
Meaning
Ancestors or people in previous generations from whom one is descended.
Example
We must honor the traditions of our forebears.
Nous devons honorer les traditions de nos ancêtres.
C1 noun ˌflʌk.tʃuˈeɪ.ʃən

fluctuation

fluctuation
Meaning
An irregular rising and falling in number or amount; a variation.
Example
The stock market experiences frequent fluctuation.
Le marché boursier connaît des fluctuations fréquentes.