friday
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A1 noun /ˈfraɪ.deɪ/

friday

viernes
Meaning
the day of the week following Thursday and preceding Saturday
Example
We have a team meeting every Friday afternoon.
Tenemos una reunión de equipo todos los viernes por la tarde.
C2 noun /ˈfɛndər/

fender

guardabarros
Meaning
a part of a vehicle that frames a wheel well to protect against mud or debris
Example
The car's fender was dented in the accident.
El fender del coche se abolló en el accidente.
C1 noun /fjuːd/

feud

disputa, enemistad
Meaning
a prolonged and bitter quarrel or conflict, often between families or groups
Example
The two families have been in a feud for generations.
Las dos familias han estado en una disputa durante generaciones.
C1 noun /frɪndʒ/

fringe

borde decorativo / orilla
Meaning
A decorative border of threads; the outer edge or margin of something.
Example
The festival had a fringe of small independent performances.
El festival tenía un borde de pequeñas actuaciones independientes.
C1 verb /ˈfɔːltər/

falter

vacilar o perder fuerza o impulso
Meaning
to hesitate or lose strength or momentum
Example
Her voice faltered as she delivered the speech.
Su voz vaciló mientras pronunciaba el discurso.
C1 adjective /ˈfæn.sɪ.fəl/

fanciful

fantasioso, irreal
Meaning
overimaginative, unrealistic, or whimsical
Example
The story was too fanciful to be true.
La historia era demasiado fantasiosa para ser cierta.
C1 noun /fɪˈnɛs/

finesse

sutilidad, destreza, refinamiento
Meaning
Subtlety and skill; refinement and delicacy in performance or artistry.
Example
The artist painted with great finesse.
El artista pintó con gran destreza.
C1 noun /fəˌsɪlɪˈteɪʃən/

facilitation

facilitación
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.
Su facilitación hizo que la reunión fuera fluida.
C1 adjective + noun ˈfeɪvərəbəl klaɪˈmætɪk kənˈdɪʃənz

favorable climatic conditions

condiciones climáticas favorables
Meaning
Weather conditions that are suitable and beneficial for growth or development
Example
Winter offers favorable climatic conditions for farming.
El invierno ofrece condiciones climáticas favorables para la agricultura.
B2 verb /fʊlˈfɪl/

fulfill

cumplir
Meaning
to complete or accomplish something, especially a task or promise
Example
He worked hard to fulfill his dreams.
Trabajó duro para cumplir sus sueños.
B2 noun /ˈfrʌn.tɪər/

frontier

frontera o nuevo campo
Meaning
A new area of activity, knowledge, or development; the edge of knowledge or achievement.
Example
Robotic surgery is exploring a new frontier in medicine.
La cirugía robótica está explorando una nueva frontera en la medicina.
B2 verb fəˈsɪl.ɪ.teɪt

facilitate

facilitar
Meaning
Make an action or process easier or more achievable; to help bring about.
Example
Good infrastructure facilitates economic growth.
La buena infraestructura facilita el crecimiento económico.
B1 noun /ˈfeɪ.ljər/

Failure

fracaso
Meaning
lack of success; an unsuccessful person, enterprise, or thing
Example
The project's failure was due to poor planning and communication.
El fracaso del proyecto se debió a una planificación y comunicación deficientes.
B2 noun /frɒk/

Frock

falda
Meaning
a dress, especially a simple or casual one for women or children
Example
The little girl wore a pink frock to her birthday party.
La niña pequeña llevaba una falda rosa a su fiesta de cumpleaños.
A2 noun /ˈfer.i.teɪl/

Fairy-tale

cuento de hadas
Meaning
a children's story about magical and imaginary beings and lands
Example
Children love listening to fairy-tales before bedtime.
A los niños les encanta escuchar cuentos de hadas antes de acostarse.
B1 adjective /ˈfrʌstreɪtɪŋ/

frustrating

frustrante
Meaning
causing annoyance or dissatisfaction
Example
The slow internet connection was really frustrating.
La conexión de internet lenta fue realmente frustrante.
B2 noun /ˈfɔːr.kæst/

Forecast

pronóstico
Meaning
a prediction or estimate of future events, especially coming weather conditions
Example
The weather forecast predicted heavy rain for the entire weekend.
El pronóstico del tiempo predijo lluvias intensas para todo el fin de semana.
C2 adjective /ˈfæsaɪl/

Facile

fácil; superficial; carente de profundidad
Meaning
easily achieved; superficial; lacking depth
Example
His facile explanation didn't address the real problem.
Su explicación fácil no abordó el problema real.
C1 noun /ˌfæb.rɪˈkeɪ.ʃən/

fabrication

invención falsa
Meaning
The invention of false or misleading information; a lie or falsehood.
Example
The article was full of fabrication and misleading claims.
El artículo estaba lleno de invenciones falsas y reclamos engañosos.
A1 noun/verb /fɪʃ/

fish

felicidad
Meaning
an aquatic animal with gills, or to try to catch such animals
Example
He went to the lake to fish early in the morning.
Ella no pudo ocultar su felicidad cuando recibió el premio.
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.
Ella reservó un facial en el spa.
C1 noun /ˈflɔː.rə/

flora

la vida vegetal encontrada en una región o hábitat particular
Meaning
The plant life found in a particular region or habitat.
Example
The Amazon rainforest is home to a vast flora diversity.
La selva amazónica es hogar de una gran diversidad de flora.
B2 adverb /ˌfɜːrðərˈmɔːr/

furthermore

además
Meaning
Used to introduce an additional point or idea; in addition.
Example
The plan is simple and, furthermore, it is affordable.
El plan es sencillo y, además, es asequible.
B1 verb /fərˈbɪd/

forbid

prohibir
Meaning
to order someone not to do something
Example
The school forbids smoking on campus.
La escuela prohíbe fumar en el campus.
C1 adjective /ˈflæʃi/

flashy

llamativo, ostentoso
Meaning
ostentatious or showy in a way that attracts attention
Example
He drove a flashy sports car through the city streets.
Él condujo un coche deportivo llamativo por las calles de la ciudad.
C1 noun ˌfɔːtɪfɪˈkeɪʃn

fortification

fortificación
Meaning
A defensive wall or other reinforcement built to strengthen a place against attack.
Example
The fortifications protected the city.
Las fortificaciones protegieron la ciudad.
B1 adjective /ˈfæbjələs/

Fabulous

fabuloso; increíble; extraordinario
Meaning
extremely good; wonderful; extraordinary
Example
She wore a fabulous dress to the party.
Ella llevaba un vestido fabuloso a la fiesta.
C2 adjective /ˈfɛtɪd/

fetid

fétido, maloliente
Meaning
having a strong, unpleasant smell
Example
The fetid smell from the garbage was unbearable.
El olor fétido de la basura era insoportable.
B2 noun /ˈfɪlmˌmeɪkər/

filmmaker

cineasta
Meaning
a person who makes films, typically as a profession
Example
He is a well-known filmmaker in the industry.
Es un cineasta muy conocido en la industria.
C1 adjective fæsˈtɪd.i.əs

fastidious

meticuloso
Meaning
Very attentive to and concerned about accuracy and detail.
Example
She is fastidious about maintaining cleanliness.
Ella es meticulosa al mantener la limpieza.
C2 noun /ˈfɪli/

filly

yegua joven
Meaning
a young female horse
Example
The filly ran swiftly across the meadow.
La potra corrió rápidamente por el campo.
A2 noun /fækt/

fact

hecho
Meaning
A thing that is known or proved to be true
Example
It is a fact that the Earth orbits the Sun.
Es un hecho que la Tierra orbita alrededor del Sol.
C1 adjective ˈfjuː.taɪl

futile

fútil
Meaning
Incapable of producing any useful result; pointless.
Example
His attempts to change the situation were futile.
Sus intentos de cambiar la situación fueron inútiles.
A1 noun /frɛnd/

friend

amigo
Meaning
a person with whom one has a bond of mutual affection
Example
He is my best friend.
Él es mi mejor amigo.
C2 adjective fəˈleɪ.ʃəs

fallacious

falso
Meaning
Based on false reasoning or misleading arguments.
Example
His argument was based on fallacious reasoning.
Su argumento estaba basado en razonamientos falsos.
C1 noun /ˌfɪɡjʊˈriːn/

figurine

pequeña figura decorativa
Meaning
a small ornamental statue or model of a human or animal
Example
She bought a porcelain figurine of a dancing ballerina.
Ella compró una figura de porcelana de una bailarina de ballet.
C2 noun /feɪnt/

feint

finta, movimiento engañoso
Meaning
a deceptive or pretended movement, especially in fighting or sports
Example
The boxer made a feint to the left before striking to the right.
El boxeador hizo una finta hacia la izquierda antes de golpear hacia la derecha.
C1 noun /ˈfæm.ɪn/

Famine

hambruna
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 sequía provocó una hambruna generalizada en la región.
B2 adjective /ˈfɛmənɪn/

feminine

femenino
Meaning
having qualities traditionally associated with women; feminine in nature
Example
She has a very feminine style of dressing.
Ella tiene un estilo muy femenino de vestir.
C1 verb /flɑp/

flop

fracaso
Meaning
to fall or move heavily and clumsily; to fail completely
Example
The new movie flopped at the box office.
La nueva película fracasó en la taquilla.
C2 adjective /ˈfɜːr.vɪd/

Fervid

apasionado; intensamente entusiasta; ardiente de emoción
Meaning
passionate; intensely enthusiastic; burning with emotion
Example
She gave a fervid speech about environmental protection.
Ella dio un discurso fervido sobre la protección del medio ambiente.
C1 verb /fɔːrˈʃædoʊ/

foreshadow

presagiar
Meaning
To indicate or suggest something that will happen in the future
Example
Dark clouds foreshadowed an approaching storm.
Las nubes oscuras presagiaron una tormenta inminente.
C2 noun /ˈfaɪər.brænd/

firebrand

persona revolucionaria
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.
El activista era un verdadero revolucionario, inspirando a todos a su alrededor para unirse a la protesta.
C1 verb /fɔːrˈɡoʊ/

forego

renunciar
Meaning
to decide not to do or have something pleasant or valuable
Example
She decided to forego dessert to maintain her diet.
Ella decidió renunciar al postre para mantener su dieta.
B2 adverb /ˈfɜ:rmli/

Firmly

firmemente
Meaning
in a strong, steady, and unwavering manner
Example
She firmly believed in her decision.
Ella creía firmemente en su decisión.
C2 adjective /ˈfɛstəl/

festal

relacionado con un festival, festivo
Meaning
relating to a festival or celebration
Example
The hall was decorated in a festal manner for the wedding.
El salón estaba decorado de manera festiva para la boda.
B2 noun /flɛkˈsɪbɪləti/

flexibility

flexibilidad
Meaning
The quality of bending easily without breaking; willingness to change or compromise.
Example
The flexibility of the working hours made it easier to balance work and personal life.
La flexibilidad de los horarios de trabajo facilitó equilibrar el trabajo y la vida personal.
C1 adjective /ˈfrɪdʒɪd/

Frigid

frío; helado
Meaning
extremely cold; freezing; icy
Example
The frigid weather made it difficult to go outside.
El clima frío dificultó salir afuera.
C2 adjective /ˈflæb.i/

Flabby

blando y flojo; falta de firmeza o tono muscular; débil
Meaning
soft and loose; lacking firmness or muscle tone; weak
Example
His flabby arms showed he needed to exercise more.
Sus brazos flácidos mostraban que necesitaba hacer más ejercicio.
B2 noun /ˈfeɪbəl/

fable

fábula
Meaning
a short story, typically featuring animals as characters, that conveys a moral lesson
Example
Aesop’s fables are famous for teaching valuable lessons through simple stories.
Las fábulas de Esopo son famosas por enseñar valiosas lecciones a través de historias simples.
B2 adjective /ˈfeɪvərəbl/

favourable

favorable
Meaning
Expressing approval, support, or positivity; advantageous or beneficial
Example
The weather conditions were favourable for the outdoor event.
Las condiciones climáticas fueron favorables para el evento al aire libre.
B1 adjective /fɒnd/

fond

afectuoso
Meaning
having a strong liking or affection for something or someone
Example
She is fond of painting and spends hours in front of her canvas.
Ella es afectuosa con la pintura y pasa horas frente a su lienzo.
C1 noun /ˈfɔːrˌrʌnər/

forerunner

precursor
Meaning
A person or thing that comes before another; a predecessor or harbinger.
Example
The Wright brothers were the forerunners of modern aviation.
Los hermanos Wright fueron los precursores de la aviación moderna.
B2 noun /fiːst/

Feast

banquete; festín
Meaning
a large meal, typically one in celebration of something; an annual religious celebration
Example
The wedding feast included traditional dishes from both families' cultures.
El banquete de la boda incluyó platos tradicionales de las culturas de ambas familias.
C2 verb /fleɪl/

flail

agitar o mover algo de manera salvaje; forcejear
Meaning
to wave or swing something about wildly; to thrash about
Example
He flailed his arms to keep afloat in the water.
Él agitó sus brazos para mantenerse a flote en el agua.
C2 noun /ˈfiːəlti/

fealty

fidelidad y lealtad
Meaning
loyalty or allegiance, especially to a sovereign or lord
Example
The knight swore fealty to his king.
El caballero juró fidelidad a su rey.
C1 adjective /fəˈroʊ.ʃəs/

Ferocious

feroz, salvaje, cruel
Meaning
savagely fierce, cruel, or violent; extremely aggressive
Example
The ferocious storm destroyed many houses in the coastal area.
La feroz tormenta destruyó muchas casas en la zona costera.
B2 noun /ˈfleɪ.vər/

Flavour

sabor
Meaning
the distinctive taste of a food or drink; a particular quality or atmosphere
Example
The soup had a rich flavour of herbs and spices from the garden.
La sopa tenía un rico sabor de hierbas y especias del jardín.
C2 verb /ˌfɔːrɔːrˈdeɪn/

foreordain

predestinar
Meaning
to determine or decree something in advance; to predestine
Example
Some believe that our lives are foreordained by fate.
Algunos creen que nuestras vidas están predestinadas por el destino.
C1 noun /frəˈdʒɪl.ɪ.ti/

fragility

fragilidad
Meaning
The quality of being fragile; delicateness.
Example
The cornea's fragility increases with rubbing.
La fragilidad de la córnea aumenta con el frotamiento.
C2 noun /ˈfʌriər/

furrier

peluquero
Meaning
A person who prepares or deals in furs.
Example
The furrier displayed fine coats in his shop.
El peluquero exhibió abrigos finos en su tienda.
B1 noun /ˈfaɪəˌfaɪtə/

firefighter

bombero
Meaning
a person whose job is to put out fires
Example
The firefighter saved the family from the burning building.
El bombero salvó a la familia del edificio en llamas.
A2 adjective /ˈfɔːrməl/

formal

formal
Meaning
done in accordance with rules of convention or etiquette; official or serious in nature
Example
He wore a formal suit to the wedding.
Él usó un traje formal para la boda.
C2 noun /ˈfɜːrðərəns/

furtherance

avance
Meaning
The advancement or promotion of something.
Example
The new policy was introduced in furtherance of social justice.
La nueva política se introdujo en pro de la justicia social.
A2 adjective /ˈfroʊzən/

frozen

congelado
Meaning
preserved by being made extremely cold; turned into ice
Example
The lake was completely frozen during winter.
El lago estaba completamente congelado durante el invierno.
C2 noun /ˈflɛkʃən/

flection

flexión
Meaning
The act of bending or the state of being bent, especially of a limb or joint.
Example
The doctor tested the patient's knee flection during the examination.
El doctor probó la flexión de la rodilla del paciente durante el examen.
C2 noun /fiːf/

fief

un terreno de tierra otorgado bajo el sistema feudal; un dominio o área de control
Meaning
an estate of land held under the feudal system; a domain or area of control
Example
The knight was granted a fief by the lord for his service.
El caballero recibió un feudo del señor por su servicio.
C2 noun /ˈfɔːrˌnɑːlɪdʒ/

foreknowledge

preconocimiento
Meaning
Awareness of something before it happens or exists.
Example
The prophet claimed to have foreknowledge of the event.
El profeta afirmó tener preconocimiento del evento.
C1 noun /fəˈsɑːd/

facade

fachada
Meaning
The front of a building; a false or superficial appearance
Example
The building's glass facade reflected the sunset.
La fachada de vidrio del edificio reflejaba el atardecer.
C2 verb /fɔːrˈdʒʌdʒ/

forejudge

juzgar por adelantado
Meaning
To judge beforehand without adequate information.
Example
It is unfair to forejudge someone without knowing the facts.
Es injusto juzgar a alguien sin conocer los hechos.
B2 adjective /ˈflɔː.ləs/

Flawless

perfecto; sin defectos
Meaning
perfect; without any defects or faults; immaculate
Example
Her flawless performance earned her a standing ovation.
Su actuación perfecta le valió una ovación de pie.
B2 adverb /ˈfɜ:rst hænd/

First-hand

de primera mano; directamente
Meaning
directly experienced or obtained; from the original source
Example
I experienced the earthquake first-hand.
Experimenté el terremoto de primera mano.
B2 adverb /ˈfræŋkli/

Frankly

francamente; abiertamente;
Meaning
honestly; openly; in a direct manner
Example
Frankly, I think this plan needs more consideration.
Francamente, creo que este plan necesita más consideración.
C2 adjective /fɪˈdjuːʃəl/

fiducial

fiducial, de referencia
Meaning
based on trust or confidence; serving as a standard of reference
Example
The fiducial point on the map ensures accurate measurements.
El punto fiducial en el mapa asegura mediciones precisas.
B2 noun /ˈfɜːrneɪs/

furnace

horno
Meaning
an enclosed structure in which heat is produced for a building or for melting metal
Example
The factory's furnace melted the metal quickly.
El horno de la fábrica fundió el metal rápidamente.
B2 noun /fɪst/

Fist

puño; golpe
Meaning
a person's hand when the fingers are bent in toward the palm and held there tightly
Example
He raised his fist in victory after winning the championship match.
Él levantó su puño en victoria después de ganar el campeonato.
B1 adjective /ˈfəʊkəst/

focused

enfocado
Meaning
Directing a great deal of attention or effort toward a particular activity, situation, or person.
Example
Staying focused during work hours enhances productivity.
Mantenerse enfocado durante las horas de trabajo mejora la productividad.
B1 verb /ˈfraɪtən/

frighten

asustar
Meaning
to cause fear or alarm in someone
Example
The loud noise frightened the child.
El ruido fuerte asustó al niño.
C1 adjective /ˈfræɡməntɪd/

fragmented

fragmentado, dividido, incompleto
Meaning
Having been broken into fragments; disjointed or incomplete.
Example
The information was fragmented and difficult to understand.
La información estaba fragmentada y era difícil de entender.
C2 verb /frɪsk/

frisk

registrar
Meaning
To search a person by patting their clothing to check for concealed items.
Example
The security guard frisked the man at the entrance.
El guardia de seguridad registró al hombre en la entrada.
C1 noun /fæd/

fad

moda pasajera, tendencia
Meaning
a temporary fashion or trend; a short-lived craze
Example
The new diet became a popular fad among teenagers.
La nueva dieta se convirtió en una moda pasajera entre los adolescentes.
B2 verb, noun, adjective /flʌʃ/

flush

ponerse rojo / limpiar con agua
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.
Ella se sonrojó de vergüenza cuando se dio cuenta de su error.
A2 noun ˈfriː.dəm

freedom

libertad
Meaning
The power or right to act, speak, or think as one wants without hindrance or restraint.
Example
Freedom empowers self-expression.
La libertad potencia la auto-expresión.
B2 noun /ˈfluː.ən.si/

fluency

fluidez
Meaning
The ability to speak or write a language smoothly and effortlessly.
Example
She speaks English with remarkable fluency.
Ella habla inglés con fluidez notable.
C1 noun /ˈfɔɪeɪr/

foyer

vestíbulo
Meaning
An entrance hall or lobby in a building.
Example
The guests waited in the hotel foyer before checking in.
Los huéspedes esperaron en el vestíbulo del hotel antes de registrarse.
C2 adjective /fækˈtɪʃəs/

factitious

artificial, no genuino
Meaning
artificial or fabricated; not natural or genuine
Example
The excitement in his story seemed factitious and forced.
La emoción en su historia parecía artificial y forzada.
C2 noun /ˌfoʊ.mənˈteɪ.ʃən/

fomentation

incitación, estimulación
Meaning
The action of instigating or stirring up; also the application of warm substances to the body to ease pain.
Example
His speech led to the fomentation of violence in the region.
Su discurso llevó a la fomentación de la violencia en la región.
C2 adjective /ˈfjuːzəbl/

fusible

fundible
Meaning
Capable of being melted or fused.
Example
The engineer used a fusible alloy in the experiment.
El ingeniero usó una aleación fundible en el experimento.
C2 noun /ˈfʌstɪən/

fustian

discurso pomposo
Meaning
pompous or pretentious speech or writing; originally a type of thick cloth
Example
The politician's speech was filled with fustian and empty promises.
El discurso del político estaba lleno de fustián y promesas vacías.
A1 verb /fɔːl/

fall

caer
Meaning
to drop down from a higher place; to decrease; to happen or occur
Example
The leaves fall from the trees in autumn.
Las hojas caen de los árboles en otoño.
C1 noun /fɔːrˈmæl.ə.ti/

Formality

formalidad
Meaning
the rigid observance of rules of convention or etiquette; a thing done simply to comply with requirements
Example
The signing of the contract was just a formality; the deal was already agreed upon.
La firma del contrato fue solo una formalidad; el acuerdo ya estaba acordado.
B2 verb /ˈfæsən/

fasten

abrochar
Meaning
To attach or secure something firmly in place
Example
Please fasten your seatbelt before the plane takes off.
Por favor, abroche su cinturón antes de que despegue el avión.
B1 noun /fæts/

fats

grasas
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.
Las grasas saludables de los frutos secos y los aguacates apoyan la función cerebral.
B2 noun /fʌs/

Fuss

alboroto; agitación; preocupación innecesaria
Meaning
unnecessary worry or bother about something; agitated excitement over a trivial matter
Example
She made such a fuss about the small stain on her dress that everyone noticed.
Hizo tanto alboroto por la pequeña mancha en su vestido que todos lo notaron.
A2 noun ˈfɔːrɪsts

Forests

bosques
Meaning
Large areas covered with trees and undergrowth, providing natural habitats for wildlife.
Example
Forests provide shelter and food for butterflies.
Los bosques proporcionan refugio y alimento para las mariposas.
C1 verb /ˈfɔːlsɪfaɪ/

falsify

falsificar
Meaning
to make something false or to misrepresent
Example
He tried to falsify the documents to avoid taxes.
Él trató de falsificar los documentos para evitar impuestos.
C1 noun /fruːˈɡæl.ə.ti/

frugality

frugalidad
Meaning
The quality of being economical in use or expenditure; not wasteful.
Example
Frugality is essential for saving money effectively.
La frugalidad es esencial para ahorrar dinero de manera efectiva.
B2 noun /ˈfɛə(r)nɪs/

fairness

equidad
Meaning
the quality of being free from bias, favoritism, or injustice
Example
She always strives for fairness in her decisions.
Ella siempre lucha por la equidad en sus decisiones.
A2 noun /frɒɡ/

Frog

rana
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 rana saltó desde la almohadilla de lirio al estanque.
B1 noun /ˈfaɪ.tər/

Fighter

avión de combate
Meaning
a military aircraft designed for attacking other aircraft; a person who fights
Example
The fighter jet flew overhead during the military parade.
El avión de combate voló sobre nuestras cabezas durante el desfile militar.
C2 adjective /ˈfækʃəs/

factious

faccionado
Meaning
causing disagreement or division within a group; inclined to form factions
Example
The debate became factious, splitting the committee into rival camps.
El debate se volvió faccioso, dividiendo al comité en campos rivales.
C1 adverb /ˈfɜː.vənt.li/

Fervently

con fervor; ardientemente;
Meaning
with passionate intensity; ardently; with great emotion or enthusiasm
Example
She fervently hoped that her dreams would come true.
Ella esperaba fervientemente que sus sueños se hicieran realidad.
C2 noun /fluːk/

fluke

golpe de suerte
Meaning
A stroke of luck; an unexpected piece of good fortune.
Example
Winning the lottery was a complete fluke.
Ganar la lotería fue un completo golpe de suerte.
C2 adjective /ˈfiːtɪd/

foetid

hediondo
Meaning
having an offensive, unpleasant smell
Example
The foetid smell from the garbage made it hard to breathe.
El hedor del basurero hizo que fuera difícil respirar.
B1 noun /ˈfɔːr.tʃən/

Fortune

fortuna; suerte; riqueza
Meaning
chance or luck as an external, arbitrary force affecting human affairs; a large amount of money or assets
Example
He made his fortune by investing wisely in technology companies.
Hizo su fortuna invirtiendo sabiamente en empresas tecnológicas.
C1 noun /ˈfɛlən/

felon

delincuente
Meaning
a person who has committed a serious crime
Example
The felon was sentenced to ten years in prison.
El delincuente fue sentenciado a diez años de prisión.
C1 adjective /ˈflaʊəri/

flowery

florido / ornamentado
Meaning
Full of flowers or overly elaborate in style or language.
Example
She wrote a flowery letter filled with poetic phrases.
Ella escribió una carta florida llena de frases poéticas.
B2 noun /ˈfæntəsi/

fantasy

fantasía
Meaning
a creation of the imagination, especially something improbable or impossible
Example
She has a vivid fantasy about traveling to space.
Ella tiene una vívida fantasía sobre viajar al espacio.
B2 verb ˈfɔːr.mjə.leɪt

formulate

formular
Meaning
To create or develop a plan or idea clearly and specifically, to construct an idea or strategy clearly.
Example
The company must formulate a strategy for expansion.
La empresa debe formular una estrategia para la expansión.
C2 verb /fɔrˈswɛr/

forswear

renunciar
Meaning
to renounce or reject; to give up completely
Example
He forswore his old habits and started a new life.
Él renunció a sus viejos hábitos y empezó una nueva vida.
B2 adjective /ˈfræʤaɪl/

fragile

frágil
Meaning
Easily broken or damaged; delicate.
Example
Be careful with that vase, it's very fragile.
Ten cuidado con ese jarrón, es muy frágil.
A2 adjective /ˈfuː.lɪʃ/

Foolish

tonto; estúpido; ridículo
Meaning
lacking good sense or judgment; unwise; silly
Example
It was foolish of him to drive in such heavy rain.
Fue tonto de su parte conducir con tanta lluvia.
B1 noun /ˈfæktər/

factor

factor
Meaning
A circumstance, fact, or influence that contributes to a result.
Example
Weather is an important factor in crop production.
El clima es un factor importante en la producción de cultivos.
C1 adjective /ˈfænsiːd/

fancied

imaginado, deseado
Meaning
imagined, desired, or believed without evidence
Example
He is a fancied suitor in the eyes of the young lady.
Él es un pretendiente imaginado a los ojos de la joven.
C1 adjective /frəˈnɛtɪk/

frenetic

frenético
Meaning
Fast and energetic in a wild or uncontrolled way.
Example
The stock market experienced frenetic trading after the announcement.
El mercado de valores experimentó un comercio frenético después del anuncio.
C2 noun /ˈfæn.feər/

fanfare

gran pompa, publicidad
Meaning
a short ceremonial tune or display of publicity to attract attention
Example
The new product was launched with much fanfare.
El nuevo producto fue lanzado con gran pompa.
C2 noun /ˈfrɛʃɪt/

freshet

desbordamiento repentino del río
Meaning
A sudden overflow of a stream or river caused by heavy rain or melting snow.
Example
After the storm, the river turned into a raging freshet.
Después de la tormenta, el río se convirtió en un freshet furioso.
C1 noun /ˈfɔːrmən/

foreman

persona encargada de un grupo de trabajadores, especialmente en una fábrica o en una obra de construcción
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.
El capataz supervisó a los trabajadores en el sitio de construcción.
B2 adjective /ˈfeɪtl/

fatal

fatal
Meaning
causing death; leading to disaster
Example
The accident proved fatal for the driver.
El accidente resultó fatal para el conductor.
A2 adjective /fəˈmɪl.jər/

Familiar

familiar; conocido; informal y amistoso
Meaning
well-known; easily recognized; having knowledge of; informal and friendly
Example
This song sounds familiar to me.
Esta canción me suena familiar.
C2 adjective /ˈfer.əs/

ferrous

rico en hierro
Meaning
containing or consisting of iron
Example
Ferrous metals are commonly used in construction.
Los metales ferrosos se usan comúnmente en la construcción.