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B2 adverb /fɔːrθ/

forth

adelante
Meaning
forward in place, time, or order
Example
The leader stepped forth to address the crowd.
El líder avanzó para dirigirse a la multitud.
B2 noun /ˈfɔːrəm/

forum

foro
Meaning
A place, meeting, or medium where ideas and views can be exchanged.
Example
The online forum allows people to discuss a wide range of topics.
El foro en línea permite a las personas discutir una amplia gama de temas.
B2 verb /ˈfɜːrnɪʃ/

furnish

amueblar, proporcionar
Meaning
to provide or supply with furniture or equipment
Example
They furnished the new house with modern furniture.
Ellos amueblaron la nueva casa con muebles modernos.
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.
C2 verb /ˈfæmɪʃ/

famish

morirse de hambre
Meaning
to suffer or cause to suffer from extreme hunger
Example
The stranded hikers began to famish after several days without food.
Los excursionistas varados comenzaron a morirse de hambre después de varios días sin comida.
C1 noun /ˈfɒdər/

fodder

forraje
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.
El granjero almacenó suficiente forraje para que el ganado tuviera suficiente durante el invierno.
B2 adjective /ˈfɔːlti/

faulty

defectuoso
Meaning
Having defects or imperfections; not working properly
Example
The device stopped working because it was faulty.
El dispositivo dejó de funcionar porque estaba defectuoso.
B1 noun /fəˈsɪl.ɪ.ti/

facility

instalación
Meaning
A place, amenity, or piece of equipment provided for a particular purpose.
Example
The facility was well-maintained.
La instalación estaba bien mantenida.
C2 verb /fleɪ/

flay

despojar/criticar severamente
Meaning
to strip off the skin of something or criticize severely
Example
The chef flayed the fish before cooking it.
El chef despojó el pescado antes de cocinarlo.
C1 adjective /ˈfeɪt.fəl/

fateful

decisivo o fatal
Meaning
having significant or disastrous consequences
Example
Their fateful decision changed the course of history.
Su decisión decisiva cambió el curso de la historia.
B2 noun ˌfʌŋk.ʃəˈnæl.ə.ti

functionality

funcionalidad
Meaning
The quality of being functional; the ability to work or operate as intended.
Example
The new refrigerator has improved functionality.
El nuevo refrigerador ha mejorado la funcionalidad.
C2 adjective /fəˈsiːʃəs/

facetious

humerístico
Meaning
Treating serious issues with deliberately inappropriate humor
Example
He was being facetious when he said he wanted to live on the moon.
Estaba siendo humerístico cuando dijo que quería vivir en la luna.
A2 adjective /fɔːls/

False

falso; incorrecto; engañoso; artificial
Meaning
not true; incorrect; deceptive; artificial
Example
The witness gave false testimony in court.
El testigo dio un falso testimonio en el tribunal.
C1 noun /ˈfɔːrdʒər/

forger

falsificador
Meaning
a person who makes fake documents, artworks, or signatures
Example
The police arrested a forger who had been selling counterfeit paintings.
La policía arrestó a un falsificador que había estado vendiendo pinturas falsas.
C2 noun /ˈflɪpənsi/

flippancy

falta de seriedad
Meaning
lack of seriousness; showing a disrespectful or trivial attitude
Example
His flippancy during the meeting offended his colleagues.
Su falta de seriedad durante la reunión ofendió a sus compañeros.
C2 adjective /ˈfætʃuəs/

fatuous

tonto
Meaning
silly or foolish, especially in a self-satisfied way
Example
His fatuous comments during the meeting annoyed everyone.
Sus comentarios tontos durante la reunión molestaron a todos.
C2 noun /feɪt/

fete

fiesta, celebración
Meaning
a celebration or festival, often in honor of someone
Example
The village held a grand fete to celebrate the harvest.
El pueblo celebró una gran fiesta para celebrar la cosecha.
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.
C1 noun /ˈfɔːls.hʊd/

Falsehood

falsedad; mentira
Meaning
the state of being untrue; a lie
Example
The politician was caught spreading falsehoods about his opponent.
El político fue atrapado difundiendo falsedades sobre su oponente.
B2 noun /ˈfɔːr.hed/

Forehead

frente
Meaning
the part of the face above the eyebrows and below the hairline
Example
He wiped the sweat from his forehead.
Él se secó el sudor de la frente.
A1 preposition /fɔːr/

for

para
Meaning
used to indicate purpose, destination, or recipient
Example
This gift is for you.
Este regalo es para ti.
B2 verb /fɔːrˈsiː/

foresee

prever
Meaning
To be aware of beforehand; to predict or expect.
Example
She could foresee the challenges ahead.
Ella podía prever los desafíos por delante.
C1 noun /ˈfoʊ.kəs ˈtræk.ɪŋ/

focus tracking

seguimiento del enfoque
Meaning
A technique of monitoring and maintaining attention on specific tasks or goals.
Example
Proper focus tracking improves productivity.
Un seguimiento adecuado del enfoque mejora la productividad.
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.
B1 noun /ˈfæn.si/

Fancy

gusto; imaginación o fantasía
Meaning
a feeling of liking or wanting something; imagination or fantasy
Example
The child had a fancy for becoming a famous astronaut when he grew up.
El niño tenía una inclinación por convertirse en un astronauta famoso cuando creciera.
C1 noun /ˈfænsiər/

fancier

aficionado
Meaning
a person who has a special interest in a particular thing or activity, especially animals or hobbies
Example
He is a fancier of rare birds.
Él es un aficionado a las aves raras.
C1 noun /ˈfeɪvərɪtɪzəm/

favoritism

favoritismo
Meaning
the practice of giving unfair preferential treatment to one person or group
Example
The manager was accused of favoritism towards certain employees.
El gerente fue acusado de favoritismo hacia ciertos empleados.
C1 verb/noun ˈfæð.əm

fathom

entender
Meaning
To understand after much thought; to measure the depth of water; to comprehend.
Example
It is difficult to fathom the depths of the ocean.
Es difícil entender las profundidades del océano.
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.
C1 noun /ˈfɔːrˌbɛərz/

forebears

antepasados
Meaning
Ancestors or people in previous generations from whom one is descended.
Example
We must honor the traditions of our forebears.
Debemos honrar las tradiciones de nuestros antepasados.
C2 noun /ˌfrɪdʒɪˈdɛːriəm/

frigidarium

baño frío
Meaning
a large cold pool in ancient Roman baths used for cooling off after hot baths
Example
The ruins of the Roman frigidarium are still visible today.
Las ruinas del frigidarium romano todavía son visibles hoy en día.
C1 noun /fiːt/

feat

hazaña
Meaning
an achievement that requires great courage, skill, or strength
Example
Climbing Mount Everest was a remarkable feat.
Escalar el monte Everest fue una hazaña notable.
C1 verb /fɔrˈstɔl/

forestall

prevenir de antemano
Meaning
to prevent by acting in advance; to anticipate and counter
Example
They forestalled the crisis by taking immediate action.
Ellos evitaron la crisis tomando acción inmediata.
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.
Después de graduarse, se sintió libre y listo para explorar el mundo.
C1 adjective /ˈfruːt.ləs/

Fruitless

infructuoso; inútil; fútil;
Meaning
unsuccessful; futile; pointless;
Example
After hours of searching, their efforts proved fruitless.
Después de horas de búsqueda, sus esfuerzos resultaron infructuosos.
B2 noun /ˈfɒsɪl/

fossil

fósil
Meaning
the remains or impression of a prehistoric plant or animal embedded in rock
Example
The fossil of a dinosaur was discovered in the mountains.
El fósil de un dinosaurio fue descubierto en las montañas.
B2 noun /ˌfiː.ɑːnˈseɪ/

Fiance

prometido
Meaning
a man who is engaged to be married
Example
Sarah introduced her fiance to her parents during the family dinner.
Sara presentó a su prometido a sus padres durante la cena familiar.
C1 noun /ˈfiːtəs/

fetus

feto
Meaning
an unborn or unhatched offspring in the womb or egg
Example
The doctor explained the development of the fetus during pregnancy.
El doctor explicó el desarrollo del feto durante el embarazo.
A2 adjective /ˈfɪnɪʃt/

finished

terminado, completo
Meaning
completed or brought to an end
Example
The painting is finished and ready to display.
La pintura está terminada y lista para exhibir.
C2 noun /ˈflæɡ ˌɒfɪsər/

flag-officer

oficial de bandera
Meaning
a senior naval officer entitled to fly a flag to mark the command
Example
The flag-officer reviewed the fleet before the ceremony.
El oficial de bandera revisó la flota antes de la ceremonia.
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.
A1 adjective/noun /fɔːrθ/

fourth

cuarto
Meaning
Constituting number four in a sequence; coming after the third in position.
Example
He finished in fourth place in the race.
Terminó en el cuarto lugar en la carrera.
B1 noun /fɔːlt/

Fault

culpa; error; defecto
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.
El accidente fue causado por un fallo en el sistema de frenos del coche.
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.
B1 noun /fɒɡ/

Fog

niebla
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.
La densa niebla cubrió la carretera esta mañana.
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 /ˈfækəlti/

faculty

facultad, capacidad
Meaning
an inherent mental or physical ability; a division of a university
Example
She has a remarkable faculty for languages.
Ella tiene una facultad notable para los idiomas.
C1 noun /fəˈtæləti/

fatality

fatalidad
Meaning
An occurrence of death by accident, disaster, or violence.
Example
The accident resulted in one fatality.
El accidente resultó en una fatalidad.
C1 adjective /ˈflæɡɪŋ/

flagging

decaer, agotarse o perder entusiasmo
Meaning
becoming tired, weaker, or less enthusiastic
Example
After hours of work, his energy was flagging.
Después de horas de trabajo, su energía estaba disminuyendo.
B2 noun fəˈtɪl.ɪ.ti

fertility

fertilidad
Meaning
The quality of being fertile; fruitfulness.
Example
Fertility of the soil is crucial for farming.
La fertilidad del suelo es crucial para la agricultura.
C2 noun /ˈfɔːrˌseɪl/

foresail

vela de proa
Meaning
The principal sail set on the foremast of a sailing vessel.
Example
The crew adjusted the foresail to catch the wind.
La tripulación ajustó la vela de proa para capturar el viento.
C1 noun /fruˈɪʃən/

fruition

cumplimiento
Meaning
The realization or fulfillment of a plan, project, or desire.
Example
Her dream of becoming a doctor finally came to fruition.
El sueño de convertirse en doctora finalmente se hizo realidad.
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.
C1 noun ˌfiː.zəˈbɪl.ə.ti

feasibility

viabilidad
Meaning
The state or degree of being easily or conveniently done; possibility.
Example
The company conducted a feasibility study before launching the project.
La empresa realizó un estudio de viabilidad antes de lanzar el proyecto.
A1 noun /fuːd/

food

comida
Meaning
any nutritious substance that people or animals eat or drink to maintain life and growth
Example
Rice is a common food in Asia.
El arroz es una comida común en Asia.
B1 noun /ˈfjuː.əl/

Fuel

combustible
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.
El aumento del costo del combustible ha afectado el transporte y los gastos de calefacción en todo el mundo.
C2 verb /ˈfɒn.dəl/

fondle

acariciar
Meaning
To stroke or caress lovingly or gently.
Example
She fondled the kitten gently in her lap.
Ella acarició al gatito suavemente en su regazo.
C1 adjective /ˈfiːlaɪn/

feline

relacionado con los gatos
Meaning
relating to or characteristic of cats
Example
Her movements were graceful and almost feline in their elegance.
Sus movimientos eran gráciles y casi felinos en su elegancia.
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.
B1 adjective /faɪˈnænʃəl/

financial

financiero
Meaning
relating to money, banking, or finance
Example
He made a sound financial decision by investing wisely.
Tomó una decisión financiera sólida al invertir sabiamente.
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.
B2 noun /faʊl/

Fowl

ave de corral
Meaning
a domesticated bird kept for meat or eggs; chicken or other poultry
Example
The farmer raised fowl in his backyard for fresh eggs and meat.
El granjero criaba aves de corral en su jardín trasero para huevos frescos y carne.
A1 number /ˈfɔːrti/

forty

felicidad
Meaning
the number 40; ten times four
Example
She celebrated her forty years of life with a big party.
Ella no pudo ocultar su felicidad cuando recibió el premio.
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.
B2 adjective /ˈfraɪtfəl/

frightful

espantoso
Meaning
causing fear or horror; very unpleasant
Example
The hikers faced frightful weather conditions on the mountain.
Los excursionistas enfrentaron condiciones climáticas espantosas en la montaña.
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.
A2 noun /ˈfiː.lɪŋ/

Feeling

sensación; sentimiento; emoción
Meaning
an emotional state or reaction; the capacity to experience physical sensations
Example
She had a strange feeling that something important was about to happen.
Ella tenía una extraña sensación de que algo importante iba a suceder.
B2 adverb /ˌfʌndəˈmɛntəli/

fundamentally

fundamentalmente
Meaning
in a basic and important way; at the core
Example
The two theories are fundamentally different.
Las dos teorías son fundamentalmente diferentes.
A2 adjective /fænˈtæstɪk/

Fantastic

fantástico; maravilloso; excelente
Meaning
extremely good; wonderful; excellent
Example
The movie was absolutely fantastic!
¡La película fue absolutamente fantástica!
A1 adjective/verb/adverb /friː/

free

libre
Meaning
Not under the control or in the power of another; able to act or be done as one wishes.
Example
The children are free to play outside.
Los niños son libres para jugar afuera.
B2 adverb /ˈfɔ:rmoast/

Foremost

ante todo; lo más importante
Meaning
most importantly; above all; in the first place
Example
First and foremost, we need to ensure safety.
Primero y ante todo, necesitamos asegurar la seguridad.
B1 noun /ˈflaʊər veɪs/

Flower-vase

jarrón de flores
Meaning
a decorative container used to hold cut flowers
Example
She placed beautiful roses in the flower vase on the table.
Ella colocó hermosas rosas en el florero sobre la mesa.
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.
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.
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.
B2 adverb /ˈfeɪθ.fəl.i/

Faithfully

fielmente
Meaning
in a loyal and steadfast manner; with dedication
Example
She faithfully attended every meeting despite her busy schedule.
Ella asistió fielmente a todas las reuniones a pesar de su apretada agenda.
C1 adjective /ˈfɔːrθˌraɪt/

forthright

directo
Meaning
Direct and honest in speech or behavior; straightforward.
Example
She was forthright in her criticism of the policy.
Ella fue directa en su crítica a la política.
A2 noun /fiːld/

field

campo
Meaning
an area of open land, often used for farming, sports, or scientific study
Example
The children played football in the field.
Los niños jugaron al fútbol en el campo.
C2 adjective /ˈfrəʊərd/

froward

terco
Meaning
Difficult to deal with; contrary and disobedient.
Example
The teacher found the froward child hard to manage.
El maestro encontró al niño terco difícil de manejar.
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.
C2 adjective /ˈfʊl.səm/

fulsome

elogios excesivos
Meaning
Excessively flattering or insincere; abundant or generous in amount.
Example
He offered fulsome praise to his boss.
Él ofreció elogios excesivos a su jefe.
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.
C2 verb /ˈfɛtər/

fetter

atar, restringir
Meaning
to restrain or restrict someone’s freedom
Example
The strict rules fettered the creativity of the students.
Las reglas estrictas limitaban la creatividad de los estudiantes.
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 /ˈfɔɪbəl/

foible

pequeña debilidad
Meaning
A minor weakness or eccentricity in someone's character.
Example
She loved him despite his little foibles.
A pesar de sus pequeñas debilidades, ella lo quería.
B1 adjective /ˈflek.sə.bəl/

Flexible

flexible; fácil de adaptar
Meaning
able to bend easily; adaptable to change; not rigid
Example
She has a flexible work schedule that allows her to work from home.
Ella tiene un horario de trabajo flexible que le permite trabajar desde casa.
B2 noun /ˈfeɪ.lɪŋ/

Failing

debilidad; defecto; falla
Meaning
a weakness, especially in a person's character; a fault
Example
His only failing is that he talks too much during meetings.
Su única debilidad es que habla demasiado durante las reuniones.
A1 adjective /ˈfʌn.i/

Funny

divertido; extraño; gracioso;
Meaning
humorous; strange; amusing;
Example
He told a funny joke that made everyone laugh.
Él contó una broma divertida que hizo reír a todos.
A2 noun /ˈfɑː.loʊ.ɪŋ/

following

seguidores
Meaning
a group of supporters or people who admire something or someone
Example
The singer has a large following around the world.
El cantante tiene una gran cantidad de seguidores alrededor del mundo.
B2 noun /ˈfaʊn.tən/

Fountain

fuente
Meaning
a natural spring of water; an artificial structure from which water flows
Example
The fountain in the park attracts many visitors.
La fuente en el parque atrae a muchos visitantes.
A2 noun, verb /fuːl/

fool

tonto
Meaning
a silly or stupid person; to trick someone
Example
He felt like a fool after believing the prank.
Se sintió como un tonto después de creer en la broma.
A2 noun /ˈfɪt.nəs/

fitness

condición física
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.
Las pruebas de acondicionamiento físico aseguran la seguridad del vehículo.
C1 noun /ˈfjuː.də.lɪ.zəm/

feudalism

feudalismo
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.
El feudalismo moldeó la estructura política de la Europa medieval.
B2 noun /faɪˈnæn.ʃəl rɪˌspɒn.sɪˈbɪl.ə.ti/

financial responsibility

responsabilidad financiera
Meaning
The practice of managing money and other financial resources in a responsible and effective manner.
Example
Financial responsibility ensures long-term economic stability.
La responsabilidad financiera asegura la estabilidad económica a largo plazo.
B2 adjective /ˈflɔːrəl/

floral

floral
Meaning
Relating to flowers or decorated with flowers.
Example
She wore a beautiful floral dress to the party.
Ella llevó un hermoso vestido floral a la fiesta.
A2 verb /feɪl/

fail

fracasar
Meaning
to not succeed in achieving something; to be unsuccessful
Example
He failed to complete the assignment on time.
Él fracasó en completar la tarea a tiempo.
C2 noun /ˈfriːˌbuːtər/

freebooter

pirata
Meaning
A pirate or plunderer who roams freely in search of wealth.
Example
The freebooter raided the merchant ships along the coast.
El fríbuter asaltó los barcos mercantes a lo largo de la costa.
B2 noun /ˈfɪŋ.ɡər.prɪnt/

Fingerprint

huella dactilar
Meaning
an impression or mark made on a surface by a person's fingertip; unique identification pattern
Example
The police found his fingerprints on the door handle at the crime scene.
La policía encontró sus huellas dactilares en la manija de la puerta en la escena del crimen.
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.
El boxeador era un oponente formidable en el ring.
C2 adjective /ˈfrɒlɪksəm/

Frolicsome

juguetón; alegre; vivaz
Meaning
joyful; playful; merry; cheerful
Example
The frolicsome children laughed and played in the park.
Los niños juguetones rieron y jugaron en el parque.
A2 noun /ˈflaɪ.ɪŋ ˈkriː.tʃər/

Flying creature

criatura voladora
Meaning
any animal that has the ability to fly through the air
Example
Birds, bats, and insects are all examples of flying creatures.
Los pájaros, los murciélagos y los insectos son ejemplos de criaturas voladoras.
C1 noun /ˈfɔːreɪ/

foray

incursión / primer intento
Meaning
A sudden short attack or attempt, especially into new activity or territory.
Example
The company made its first foray into the international market.
La empresa hizo su primera incursión en el mercado internacional.
B2 noun /ˈfɜː.tɪ.laɪ.zər/

fertilizer

fertilizante
Meaning
a substance added to soil to make plants grow more successfully
Example
Farmers use fertilizer to increase crop production.
Los agricultores usan fertilizante para aumentar la producción de cultivos.
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.
B2 noun /frɔːd/

Fraud

fraude
Meaning
wrongful or criminal deception intended to result in financial or personal gain
Example
The company was investigated for credit card fraud and money laundering.
La empresa fue investigada por fraude con tarjeta de crédito y lavado de dinero.
C2 adjective /ˈfrɪski/

Frisky

vivaz; energético; juguetón; travieso
Meaning
lively; energetic; playful; mischievous
Example
The frisky puppy ran around the garden playfully.
El cachorro juguetón corrió alrededor del jardín de manera juguetona.
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.
C1 noun fluˈɪd.ɪ.ti

fluidity

fluididez
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 fluididez de los movimientos de la bailarina era hipnotizante.
C1 verb /flɔːnt/

flaunt

presumir
Meaning
to show off something proudly, often to attract attention
Example
She likes to flaunt her new jewelry at parties.
A ella le gusta presumir sus nuevas joyas en las fiestas.
C1 adjective /ˈfjuː.dəl/

feudal

feudal
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.
El castillo es un vestigio de la era feudal.
C2 adjective /ˈfiːbraɪl/

febrile

febril, excitado
Meaning
having or showing the symptoms of a fever; or highly excitable or agitated
Example
The patient was in a febrile state with high temperature.
El paciente estaba en un estado febril con alta temperatura.
C2 adjective /fjuːˈnɪəriəl/

funereal

funerario
Meaning
having the mournful, somber character of a funeral
Example
The room was filled with a funereal silence after the announcement.
La habitación se llenó de un silencio funerario después del anuncio.
C1 noun /ˈfjuː.dʒə.tɪv/

Fugitive

fugitivo
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 policía lanzó una búsqueda para capturar al fugitivo que escapó de la prisión.
A2 noun /ˈfɪʃ.ər.mən/

Fisherman

pescador
Meaning
a person who catches fish as a job or hobby
Example
The fisherman caught three large fish in the river today.
El pescador atrapó tres grandes peces en el río hoy.
C1 adjective /ˈfiːbl/

feeble

débil, flojo
Meaning
lacking physical strength or vigor; weak
Example
After the illness, she felt too feeble to stand.
Después de la enfermedad, se sintió demasiado débil para levantarse.
B2 adjective /ˈflʌfi/

fluffy

felicidad
Meaning
soft, light, and airy in texture
Example
She baked a fluffy cake for the party.
Ella no pudo ocultar su felicidad cuando recibió el premio.
C2 adjective /ˈfɪnɪki/

finicky

difícil de complacer; muy particular en los detalles
Meaning
difficult to please; very particular about details
Example
He is so finicky about his food that he only eats organic vegetables.
Él es tan quisquilloso con su comida que solo come verduras orgánicas.
C2 verb /ˈfɜːrbɪʃ/

furbish

pulir
Meaning
to polish, renovate, or give a fresh look to something
Example
The workers furbished the old sword until it gleamed like new.
Los trabajadores pulieron la antigua espada hasta que brilló como nueva.
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 noun /ˈfɔːr.tɪ.tjuːd/

fortitude

fortaleza
Meaning
Courage in pain or adversity; mental and emotional strength in facing difficulty.
Example
She faced adversity with great fortitude.
Ella enfrentó las adversidades con gran fortaleza.
C2 verb /flɪt/

flit

revolotear
Meaning
to move quickly and lightly from one place to another
Example
Butterflies flitted from flower to flower.
Las mariposas revoloteaban de flor en flor.