Fuel
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B1 noun /ˈfjuː.əl/

Fuel

carburant
Meaning
a material such as coal, gas, or oil that is burned to produce heat or power
Example
The rising cost of fuel has affected transportation and heating expenses worldwide.
L'augmentation du coût du carburant a affecté les transports et les frais de chauffage dans le monde entier.
A2 noun /frɒɡ/

Frog

grenouille
Meaning
a small amphibian animal that lives both in water and on land
Example
The frog jumped from the lily pad into the pond.
La grenouille a sauté du nénuphar dans l'étang.
C2 noun /fluːk/

fluke

coup de chance
Meaning
A stroke of luck; an unexpected piece of good fortune.
Example
Winning the lottery was a complete fluke.
Gagner à la loterie était un véritable coup de chance.
B2 adverb /ˈfɜ:rmli/

Firmly

fermement
Meaning
in a strong, steady, and unwavering manner
Example
She firmly believed in her decision.
Elle croyait fermement en sa décision.
C2 adjective /ˈfʊtˌluːs/

footloose

libre
Meaning
Free to go anywhere or do anything; not tied down by responsibilities.
Example
After graduating, he felt footloose and ready to explore the world.
Après avoir obtenu son diplôme, il se sentait libre et prêt à explorer le monde.
B2 adjective /ˌfʌndəˈmɛntl/

fundamental

fondamental
Meaning
forming a necessary base or core; of central importance
Example
Honesty is a fundamental principle of good leadership.
L'honnêteté est un principe fondamental du bon leadership.
B1 adverb /ˈfɜːrstli/

firstly

d'abord
Meaning
used to introduce the first point or reason in a discussion or argument
Example
Firstly, we need to address the budget issue before proceeding.
D'abord, nous devons résoudre le problème du budget avant de continuer.
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 ˌfɜːr.tɪ.laɪˈzeɪ.ʃən

fertilization

fertilisation
Meaning
The process of adding nutrients to soil to increase crop productivity.
Example
Organic fertilization enhances soil health.
La fertilisation organique améliore la santé du sol.
A2 noun /ˈfer.i.teɪl/

Fairy-tale

conte de fées
Meaning
a children's story about magical and imaginary beings and lands
Example
Children love listening to fairy-tales before bedtime.
Les enfants adorent écouter des contes de fées avant de se coucher.
B2 noun /fɛər/

fare

tarif
Meaning
the money paid for a journey on public transport; also food or treatment provided
Example
The bus fare to the city center is five dollars.
Le tarif du bus pour le centre-ville est de cinq dollars.
C2 adjective /ˈfæsaɪl/

Facile

facile; superficiel; manquant de profondeur
Meaning
easily achieved; superficial; lacking depth
Example
His facile explanation didn't address the real problem.
Son explication facile n'a pas abordé le vrai problème.
C1 noun, verb /ˈfɜːrloʊ/

furlough

congé temporaire
Meaning
temporary leave of absence from work, especially that granted to an employee or soldier
Example
Many workers were placed on furlough during the crisis.
De nombreux travailleurs ont été mis en congé pendant la crise.
B2 verb /fliː/

flee

fuir
Meaning
To run away from danger or a threatening situation.
Example
The villagers had to flee during the flood.
Les villageois ont dû fuir pendant l'inondation.
C2 adjective /ˈflɪpənt/

flippant

désinvolte
Meaning
not showing a serious or respectful attitude
Example
His flippant remarks annoyed the teacher.
Ses remarques désinvoltes ont agacé le professeur.
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.
C2 adjective /ˈfiːtɪd/

foetid

fétide
Meaning
having an offensive, unpleasant smell
Example
The foetid smell from the garbage made it hard to breathe.
L'odeur fétide des ordures rendait la respiration difficile.
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.
C2 noun /feɪt/

fete

fête, célébration
Meaning
a celebration or festival, often in honor of someone
Example
The village held a grand fete to celebrate the harvest.
Le village a organisé une grande fête pour célébrer la récolte.
C1 noun /ˈfjuː.dʒə.tɪv/

Fugitive

fugitif
Meaning
a person who has escaped from a place or is in hiding, especially to avoid arrest
Example
The police launched a manhunt to capture the fugitive who escaped from prison.
La police a lancé une chasse à l'homme pour capturer le fugitif qui s'était échappé de la prison.
C1 adjective /ˈfjuː.dəl/

feudal

féodal
Meaning
relating to the system of feudalism, a medieval social system based on land ownership and obligations
Example
The castle is a remnant of the feudal era.
Le château est un vestige de l'époque féodale.
B1 adjective /faɪˈnænʃəl/

financial

financier
Meaning
relating to money, banking, or finance
Example
He made a sound financial decision by investing wisely.
Il a pris une décision financière avisée en investissant judicieusement.
B2 noun /ˈfʌndˌreɪzɪŋ/

fundraising

collecte de fonds
Meaning
the process of collecting money for a cause or project
Example
The organization is organizing a fundraising event.
L'organisation organise un événement de collecte de fonds.
B2 noun /ˈfɜː.tɪ.laɪ.zər/

fertilizer

engrais
Meaning
a substance added to soil to make plants grow more successfully
Example
Farmers use fertilizer to increase crop production.
Les agriculteurs utilisent des engrais pour augmenter la production des cultures.
C2 noun /flæks/

flax

lin
Meaning
a plant whose fibers are used to make linen and whose seeds are edible
Example
Flax is often used in making linen fabrics.
Le lin est souvent utilisé pour fabriquer des tissus en lin.
C2 noun /flɔːˈrɛsəns/

florescence

floraison
Meaning
The process, state, or period of flowering.
Example
The garden reached its peak florescence in spring.
Le jardin a atteint son apogée de floraison au printemps.
A2 noun /ˈflaɪ.ɪŋ ˈkriː.tʃər/

Flying creature

créature volante
Meaning
any animal that has the ability to fly through the air
Example
Birds, bats, and insects are all examples of flying creatures.
Les oiseaux, les chauves-souris et les insectes sont des exemples de créatures volantes.
C2 verb /ˈfʊl.mɪ.neɪt/

fulminate

protester violemment
Meaning
To express strong protest or criticism loudly and forcefully; to explode violently.
Example
The politician began to fulminate against corruption.
Le politicien a commencé à protester violemment contre la corruption.
B2 adjective /ˈfɛdərəl/

federal

fédéral
Meaning
Relating to the central government of a federation.
Example
The federal government passed a new law on healthcare.
Le gouvernement fédéral a adopté une nouvelle loi sur les soins de santé.
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.
C2 noun /ˈfɪli/

filly

jeune jument
Meaning
a young female horse
Example
The filly ran swiftly across the meadow.
La pouliche a couru rapidement à travers la prairie.
B2 adjective /flɔːd/

flawed

défectueux
Meaning
having a mistake or fault that reduces its value or quality
Example
The flawed design of the car led to a recall.
Le design défectueux de la voiture a conduit à un rappel.
A1 adjective /fjuː/

few

quelques
Meaning
A small number of; not many.
Example
Only a few students attended the class.
Seulement quelques étudiants ont assisté au cours.
B2 noun /ˈfer.i boʊt/

Ferry-boat

bac
Meaning
a boat that carries passengers and vehicles across water
Example
We took the ferry-boat to cross the river.
Nous avons pris le ferry-bot pour traverser le fleuve.
C1 adjective /ˈfiːzəbl/

feasible

réalisable
Meaning
possible to do easily or conveniently; practical and workable
Example
It is feasible to complete the project within two months.
Il est réalisable de terminer le projet en deux mois.
B2 verb /fjuːz/

fuse

fusionner
Meaning
To join or blend two or more things together into one.
Example
The two metals fused under high heat.
Les deux métaux ont fusionné sous haute chaleur.
B2 adjective /ˈfjʊə.ri.əs/

Furious

furieux; enragé; violent;
Meaning
extremely angry; violent; fierce;
Example
She was furious when she discovered the mistake.
Elle était furieuse quand elle a découvert l'erreur.
C2 adjective /ˈfæl.oʊ/

fallow

jachère
Meaning
Describing land that is left unplanted for a period to restore its fertility, allowing soil to recover nutrients and break pest and disease cycles.
Example
Farmers leave their fields fallow to restore soil fertility.
Les agriculteurs laissent leurs champs en jachère pour restaurer la fertilité du sol.
B1 noun /flæʃ/

Flash

éclair; éclat
Meaning
a sudden brief burst of bright light; a very brief moment
Example
There was a bright flash of lightning followed by thunder.
Il y a eu un éclair brillant suivi du tonnerre.
A2 verb /fɪl/

fill

remplir
Meaning
to make or become full; to put something into a container until it is full
Example
Please fill the glass with water.
S'il vous plaît, remplissez le verre avec de l'eau.
A2 adjective /fɪt/

Fit

adapté; approprié; en bonne santé; en bonne condition physique; prêt
Meaning
suitable; appropriate; healthy; in good physical condition; ready
Example
He is fit and healthy.
Il est en forme et en bonne santé.
A1 noun/verb /fɪlm/

film

film
Meaning
a motion picture or movie; or to record on camera
Example
They watched a film together on the weekend.
Ils ont regardé un film ensemble ce week-end.
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.
B1 verb /floʊt/

float

flotter
Meaning
to rest or move on the surface of a liquid or in the air without sinking
Example
The boat began to float gently down the river.
Le bateau a commencé à flotter doucement sur le fleuve.
C2 noun /fləˈtɪlə/

flotilla

flottille
Meaning
A small fleet of ships or boats operating together.
Example
A flotilla of fishing boats left the harbor at dawn.
Une flottille de bateaux de pêche a quitté le port à l'aube.
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 noun /fɑːrs/

farce

farce
Meaning
a comic dramatic work using buffoonery and horseplay, or a ridiculous situation
Example
The meeting turned into a complete farce with everyone arguing.
La réunion est devenue une vraie farce avec tout le monde qui se disputait.
B2 adjective, noun /ˈfeɪʃəl/

facial

facial
Meaning
Relating to the face; a beauty treatment for the face
Example
She booked a facial at the spa.
Elle a réservé un soin du visage au spa.
B1 noun freɪm

Frame

cadre
Meaning
A rigid structure that surrounds something such as a picture, door, or windowpane.
Example
A framed family tree can be displayed in your home.
Un arbre généalogique encadré peut être exposé dans votre maison.
A2 noun /ˈfɜːrnɪtʃər/

furniture

meubles
Meaning
Objects such as chairs, tables, beds, or cupboards used to make a room suitable for living or working.
Example
The living room was filled with beautiful wooden furniture.
Le salon était rempli de beaux meubles en bois.
A2 adjective /ˈfɔːrən/ or /ˈfɑːrən/

foreign

étranger
Meaning
Belonging to or coming from another country.
Example
She loves studying foreign languages.
Elle adore étudier les langues étrangères.
C2 adjective /fɪˈdjuːʃəl/

fiducial

fiduciaire, de référence
Meaning
based on trust or confidence; serving as a standard of reference
Example
The fiducial point on the map ensures accurate measurements.
Le point fiduciaire sur la carte assure des mesures précises.
B1 verb /ˈfraɪtən/

frighten

effrayer
Meaning
to cause fear or alarm in someone
Example
The loud noise frightened the child.
Le bruit fort a effrayé l’enfant.
B1 noun /ˈfaɪ.tər/

Fighter

avion de chasse
Meaning
a military aircraft designed for attacking other aircraft; a person who fights
Example
The fighter jet flew overhead during the military parade.
L'avion de chasse a volé au-dessus de nos têtes pendant le défilé militaire.
C2 noun /ˈfaɪər.brænd/

firebrand

un agitateur
Meaning
a person who is passionate about a cause, often inciting change or action
Example
The activist was a true firebrand, inspiring everyone around him to join the protest.
L'activiste était un véritable agitateur, inspirant tout le monde autour de lui à rejoindre la protestation.
B1 noun /fəˈsɪl.ɪ.ti/

facility

installation
Meaning
A place, amenity, or piece of equipment provided for a particular purpose.
Example
The facility was well-maintained.
L'installation était bien entretenue.
A2 noun /ˈfɪt.nəs/

fitness

forme physique
Meaning
The condition of being physically fit and healthy, or the quality of being suitable to fulfill a particular role or task.
Example
Fitness tests ensure vehicle safety.
Les tests de condition physique assurent la sécurité des véhicules.
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.
A1 noun /faɪv/

five

cinq
Meaning
The number 5; one more than four and one less than six.
Example
She bought five apples from the market.
Elle a acheté cinq pommes au marché.
B1 noun /fɔːlt/

Fault

faute; erreur; défaut
Meaning
an unattractive or unsatisfactory feature; responsibility for an accident or misfortune
Example
The accident was caused by a fault in the car's braking system.
L'accident a été causé par un défaut dans le système de freinage de la voiture.
C1 adjective /ˈfɛrəl/

feral

sauvage
Meaning
existing in a wild or untamed state; not domesticated
Example
The feral cat roamed the streets at night.
Le chat sauvage errait dans les rues la nuit.
C1 noun /frɪˈvɒləti/

frivolity

frivolité
Meaning
Lack of seriousness; silly or trivial behavior.
Example
The teacher discouraged frivolity during the exam.
Le professeur a découragé la frivolité pendant l'examen.
B2 verb, noun, adjective /flʌʃ/

flush

rougir / nettoyer avec de l'eau
Meaning
to become red in the face, usually from embarrassment, heat, or excitement; to clean something with a flow of water
Example
She flushed with embarrassment when she realized her mistake.
Elle rougit de honte quand elle se rendit compte de son erreur.
B1 adjective /ˈfrʌstreɪtɪŋ/

frustrating

frustrant
Meaning
causing annoyance or dissatisfaction
Example
The slow internet connection was really frustrating.
La connexion Internet lente était vraiment frustrante.
C1 adjective /ˈfaɪ.naɪt/

Finite

limité; ayant des limites
Meaning
limited; having bounds or limits; not infinite
Example
Earth has finite natural resources.
La Terre dispose de ressources naturelles limitées.
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.
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 /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.
A2 adjective /ˈfɔːrməl/

formal

formel
Meaning
done in accordance with rules of convention or etiquette; official or serious in nature
Example
He wore a formal suit to the wedding.
Il portait un costume formel au mariage.
C2 adjective /ˈfʌŋɡəs/

fungous

semblable à un champignon
Meaning
relating to or resembling a fungus
Example
The damp basement had a fungous smell.
Le sous-sol humide avait une odeur semblable à un champignon.
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 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.
B1 adjective /fɪkst/

fixed

fixé, stable
Meaning
firmly in place; not changing or movable
Example
The schedule for the meeting is fixed for Monday morning.
Le programme de la réunion est fixé pour lundi matin.
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 /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.
B2 verb /ˈflʌrɪʃ/

flourish

prospérer
Meaning
To grow or develop in a healthy or successful way.
Example
Her business began to flourish after she introduced online sales.
Son entreprise a commencé à prospérer après qu'elle ait introduit les ventes en ligne.
C2 adjective /fəˈsiːʃəs/

facetious

moqueur
Meaning
Treating serious issues with deliberately inappropriate humor
Example
He was being facetious when he said he wanted to live on the moon.
Il était moqueur quand il a dit qu'il voulait vivre sur la lune.
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.
C2 adjective /fluːˈɛnʃəl/

fluential

influent
Meaning
Having the power to influence or flowing freely (rare/archaic usage).
Example
The fluential speaker captivated the entire audience.
Le locuteur influent a captivé toute l'audience.
C2 noun /ˈflæt.ər.ər/

Flatterer

flatteur
Meaning
a person who lavishes praise, often insincerely and in order to gain advantage
Example
The king was surrounded by flatterers who only told him what he wanted to hear.
Le roi était entouré de flatteurs qui lui disaient seulement ce qu'il voulait entendre.
A1 verb /ˈfɪnɪʃ/

finish

terminer
Meaning
to complete or bring to an end; to reach the final point
Example
She finished her homework before dinner.
Elle a terminé ses devoirs avant le dîner.
A2 noun/verb /fɛns/

fence

clôture
Meaning
a barrier, usually made of wood or wire, that surrounds an area; to enclose with a barrier
Example
They built a fence around the garden.
Ils ont construit une clôture autour du jardin.
A2 adjective /frɛʃ/

fresh

frais
Meaning
new, recently made, or clean and pure
Example
The bread is still fresh from the oven.
Le pain est encore frais du four.
B1 noun /ˈfʌndɪŋ/

funding

financement
Meaning
financial support for a project or organization
Example
The startup is seeking funding from investors.
La startup cherche des financements auprès des investisseurs.
B2 noun/verb /ˈfɒs.tər.ɪŋ/

fostering

favoriser
Meaning
The process of encouraging or promoting the development or growth of something; nurturing and caring for.
Example
Good teachers play a key role in fostering creativity in students.
Les bons enseignants jouent un rôle clé dans le développement de la créativité chez les élèves.
C1 noun, verb /ˈfrænʧaɪz/

franchise

franchise
Meaning
A legal right to sell or distribute goods or services in a specific area; to grant such a right.
Example
He opened a new fast-food franchise in the city.
Il a ouvert une nouvelle franchise de restauration rapide dans la ville.
C2 noun /ˈfjʊr.ʌŋ.kəl/

Furuncle

furoncle; bosse;
Meaning
a painful pus-filled bump under the skin caused by infected, inflamed hair follicles
Example
The doctor prescribed antibiotics to treat the painful furuncle on his neck.
Le médecin a prescrit des antibiotiques pour traiter le furoncle douloureux sur son cou.
B1 noun /ˈfɛloʊ/

fellow

camarade
Meaning
a person who shares a common situation, interest, or activity with another
Example
He is a fellow student in my class.
Il est un camarade étudiant dans ma classe.
B2 verb /feɪd/

fade

faner
Meaning
To gradually lose brightness, color, or strength.
Example
The colors of the old photo have started to fade.
Les couleurs de la vieille photo ont commencé à se faner.
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.
B2 adjective /fɔːrˈsiːəbl/

foreseeable

prévisible
Meaning
Able to be predicted or expected in advance
Example
The company is unlikely to make changes in the foreseeable future.
Il est peu probable que l'entreprise apporte des changements dans un avenir prévisible.
B2 adjective /ˈfeɪvərəbəl/

favorable

favorable
Meaning
expressing approval or support; advantageous
Example
The weather conditions were favorable for the outdoor event.
Les conditions météorologiques étaient favorables pour l'événement en plein air.
B1 noun /feɪm/

Fame

célébrité
Meaning
the condition of being known or talked about by many people
Example
The young actor achieved international fame with his latest movie.
Le jeune acteur a acquis une célébrité internationale grâce à son dernier film.
A1 verb /fɔːl/

fall

tomber
Meaning
to drop down from a higher place; to decrease; to happen or occur
Example
The leaves fall from the trees in autumn.
Les feuilles tombent des arbres en automne.
C1 noun /ˈfeɪvərɪtɪzəm/

favoritism

favoritisme
Meaning
the practice of giving unfair preferential treatment to one person or group
Example
The manager was accused of favoritism towards certain employees.
Le responsable a été accusé de favoritisme envers certains employés.
C1 verb /fɔːrˈʃædoʊ/

foreshadow

présager
Meaning
To indicate or suggest something that will happen in the future
Example
Dark clouds foreshadowed an approaching storm.
Les nuages sombres ont présagé une tempête imminente.
C2 noun /ˈflɪpənsi/

flippancy

légèreté
Meaning
lack of seriousness; showing a disrespectful or trivial attitude
Example
His flippancy during the meeting offended his colleagues.
Sa légèreté pendant la réunion a offensé ses collègues.
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.
B1 noun /fɒɡ/

Fog

brouillard
Meaning
a thick cloud of tiny water droplets suspended in the atmosphere at or near the earth's surface that reduces visibility
Example
Dense fog covered the highway this morning.
Un épais brouillard a couvert l'autoroute ce matin.
B1 verb /fəʊld/

fold

plier
Meaning
to bend something, especially paper or cloth, so that one part covers another
Example
She folded the letter neatly before placing it in the envelope.
Elle a plié la lettre soigneusement avant de la placer dans l'enveloppe.
C1 noun /ˈfɔːrdʒəri/

forgery

falsification
Meaning
the crime of making fake documents, money, or artworks
Example
The bank detected a forgery in the signature on the cheque.
La banque a détecté une falsification dans la signature sur le chèque.
B2 adjective /ˈfeɪvərəbl/

favourable

favorable
Meaning
Expressing approval, support, or positivity; advantageous or beneficial
Example
The weather conditions were favourable for the outdoor event.
Les conditions météorologiques étaient favorables pour l'événement en plein air.
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 noun /fɪˈnɛs/

finesse

subtilité, habileté, raffinement
Meaning
Subtlety and skill; refinement and delicacy in performance or artistry.
Example
The artist painted with great finesse.
L'artiste a peint avec une grande finesse.
B1 noun /feɪk/

Fake

contrefaçon; fraude; objet factice
Meaning
a thing that is not genuine; a forgery or sham
Example
The painting was discovered to be a fake worth very little money.
Le tableau a été découvert comme étant une contrefaçon d'une valeur très faible.
A1 verb /ˈfɒloʊ/

follow

suivre
Meaning
to move behind someone or something; to go after or come after
Example
The children followed their teacher into the classroom.
Les enfants ont suivi leur professeur dans la salle de classe.
B2 noun /foʊm/

Foam

écume
Meaning
a mass of small bubbles formed on or in liquid; frothy white mass
Example
The waves crashed against the rocks, creating white foam on the shore.
Les vagues se sont écrasées contre les rochers, créant de l'écume blanche sur le rivage.
B1 noun /ˈfɪkʃən/

fiction

fiction
Meaning
Literature created from the imagination, not presented as fact.
Example
She enjoys reading science fiction novels.
Elle aime lire des romans de science-fiction.
C2 noun /fɔːrˈbɛrəns/

forbearance

tolérance
Meaning
Patient self-control; restraint and tolerance, especially in difficult situations.
Example
She showed remarkable forbearance during the heated argument.
Elle a montré une tolérance remarquable pendant la dispute animée.
A2 adjective /ˈfuː.lɪʃ/

Foolish

stupide; ridicule; insensé
Meaning
lacking good sense or judgment; unwise; silly
Example
It was foolish of him to drive in such heavy rain.
C'était stupide de sa part de conduire sous une telle pluie.
C2 verb /frɪsk/

frisk

fouiller
Meaning
To search a person by patting their clothing to check for concealed items.
Example
The security guard frisked the man at the entrance.
Le garde de sécurité a fouillé l'homme à l'entrée.
C2 noun /ˈfɔːrˌseɪl/

foresail

voile de proue
Meaning
The principal sail set on the foremast of a sailing vessel.
Example
The crew adjusted the foresail to catch the wind.
L'équipage a ajusté la voile de proue pour attraper le vent.
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.
C2 noun /ˈfɔːltˌfaɪndər/

faultfinder

chercheur de défauts
Meaning
a person who habitually finds fault with others
Example
He is such a faultfinder that nothing anyone does is ever good enough.
C'est un chercheur de défauts au point que rien de ce que fait quelqu'un n'est jamais assez bien.
C2 verb /ˈfrɪtər/

fritter

gaspiller
Meaning
To waste time, money, or energy on trivial matters.
Example
He frittered away his savings on unnecessary gadgets.
Il a gaspillé ses économies sur des gadgets inutiles.
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.
B1 noun /fæts/

fats

graisses
Meaning
Essential macronutrients that provide energy, support cell growth, and protect organs while helping absorb vitamins.
Example
Healthy fats from nuts and avocados support brain function.
Les graisses saines des noix et des avocats soutiennent la fonction cérébrale.
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.
B2 noun /ˈfɔːr.hed/

Forehead

front
Meaning
the part of the face above the eyebrows and below the hairline
Example
He wiped the sweat from his forehead.
Il essuya la sueur de son front.
A2 noun /fɪər/

Fear

peur; crainte
Meaning
an unpleasant emotion caused by the belief that someone or something is dangerous
Example
She overcame her fear of heights by taking rock climbing lessons.
Elle a surmonté sa peur des hauteurs en prenant des cours d'escalade.
A2 adjective /flæt/

flat

plat
Meaning
Smooth and level, without raised areas or curves.
Example
The road ahead was completely flat.
La route devant était complètement plate.