Ferry-boat
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B2 noun /ˈfer.i boʊt/

Ferry-boat

ferry
Meaning
a boat that carries passengers and vehicles across water
Example
We took the ferry-boat to cross the river.
Tomamos el ferry-bot para cruzar el río.
C2 verb /ˌfɔːrˈrʌn/

forerun

predecer
Meaning
To go before; to precede in time, place, or action.
Example
Dark clouds often forerun a storm.
Las nubes oscuras a menudo preceden una tormenta.
A2 verb /fɪks/

fix

arreglar
Meaning
To repair or make something work again.
Example
The mechanic fixed the broken car.
El mecánico arregló el coche roto.
C1 noun /fɑːrs/

farce

farsa
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 reunión se convirtió en una farsa completa con todos discutiendo.
C1 verb /fɔːrˈɡoʊ/

forgo

renunciar
Meaning
to decide not to do or have something
Example
She decided to forgo dessert to maintain her diet.
Ella decidió renunciar al postre para mantener su dieta.
B2 adjective /ˈfɜːr.taɪl/

Fertile

fértil
Meaning
capable of producing abundant vegetation or crops; able to conceive children
Example
The fertile soil in this region makes it perfect for growing vegetables.
El suelo fértil de esta región lo hace perfecto para cultivar verduras.
C2 adjective /ˈfraʊzi/

frowsy

desordenado
Meaning
Scruffy and neglected in appearance; musty or stale in smell.
Example
He wore a frowsy old jacket that smelled of damp.
Él llevaba una chaqueta desordenada y vieja que olía a humedad.
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.
A1 noun /faɪər/

Fire

fuego
Meaning
combustion or burning, in which substances combine chemically with oxygen from the air
Example
The fire in the fireplace provided warmth and a cozy atmosphere.
El fuego en la chimenea proporcionó calor y un ambiente acogedor.
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.
C1 adjective/noun /fəˈrɛns.ɪk/

forensic

Análisis científico aplicado a asuntos criminales o legales
Meaning
Scientific analysis applied to criminal or legal matters
Example
Forensic experts analyze cybercrimes using advanced tools.
Los expertos forenses analizan los delitos cibernéticos utilizando herramientas avanzadas.
B2 noun ˈfrʌn.tɪərz

frontiers

fronteras
Meaning
The extreme limit of settled land beyond which lies wilderness; the limits of knowledge or achievement in a particular field.
Example
The project pushes the frontiers of space exploration.
El proyecto expande las fronteras de la exploración espacial.
B2 noun /ˈfræɡ.mənt/

Fragment

fragmento; trozo;
Meaning
a small part broken or separated off something; an incomplete or isolated portion
Example
Archaeologists found fragments of ancient pottery buried in the soil.
Los arqueólogos encontraron fragmentos de cerámica antigua enterrados en el suelo.
C1 noun/verb /fliːs/

fleece

lana de oveja
Meaning
The woolly covering of a sheep; as a verb, to swindle or cheat someone.
Example
The farmer sheared the sheep’s fleece carefully.
El granjero esquiló el vellón de la oveja cuidadosamente.
C2 adjective /ˈfiːbəlˌmaɪndɪd/

feebleminded

tonto o de mente débil
Meaning
lacking intelligence or mental capacity; foolish or weak-minded
Example
The feebleminded man struggled to understand basic instructions.
El hombre de mente débil luchaba por entender instrucciones básicas.
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.
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.
A1 adjective /fʊl/

full

lleno
Meaning
Containing as much or as many as possible; complete.
Example
The glass is full of water.
El vaso está lleno de agua.
C1 noun /fɪlθ/

filth

suciedad
Meaning
dirty or disgusting matter; moral corruption
Example
The streets were full of filth after the storm.
Las calles estaban llenas de suciedad después de la tormenta.
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.
A2 verb /faʊnd/

found

fundar
Meaning
to establish or create something; to discover
Example
They founded the company in 1995.
Ellos fundaron la compañía en 1995.
C2 noun, verb /ˈfɪlɪˌbʌstər/

filibuster

una táctica de retrasar la acción legislativa mediante discursos prolongados; usar tal táctica
Meaning
a tactic of delaying legislative action by prolonged speech; to use such a tactic
Example
The senator filibustered for hours to prevent the bill from passing.
El senador filibusteó durante horas para evitar que se aprobara el proyecto de ley.
B2 adjective /ˌfʌndəˈmɛntl/

fundamental

fundamental
Meaning
forming a necessary base or core; of central importance
Example
Honesty is a fundamental principle of good leadership.
La honestidad es un principio fundamental de buen liderazgo.
B2 adjective, verb (present participle) /ˈfloʊtɪŋ/

floating

flotante
Meaning
remaining on the surface of a liquid without sinking; moving lightly or freely
Example
The boat was floating gently on the calm lake.
El barco estaba flotante suavemente en el lago tranquilo.
C1 adjective /ˈfɪɡərətɪv/

figurative

figurado
Meaning
not literal; using figures of speech or symbolic representation
Example
She used figurative language to describe her feelings.
Ella usó lenguaje figurado para describir sus sentimientos.
B2 noun /fɪɡ/

Fig

higo
Meaning
a soft sweet fruit that is purple or green on the outside and has many small seeds
Example
The fig tree in our backyard produces delicious fruits every summer.
El árbol de higo en nuestro jardín produce frutas deliciosas cada verano.
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.
C2 adjective fɔːˈtjuː.ɪ.təs

fortuitous

fortuito
Meaning
Happening by accident or chance rather than design; lucky or fortunate.
Example
Their meeting was purely fortuitous.
Su encuentro fue completamente fortuito.
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.
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.
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 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 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.
C2 noun /flɛk/

fleck

mancha pequeña
Meaning
a small spot or mark, often of a different color
Example
There was a fleck of paint on the floor.
Había una mancha de pintura en el suelo.
B2 noun, verb /ˈfaɪlɪŋ/

filing

presentación de documentos; organización de papeles
Meaning
the act of submitting documents; the process of organizing papers
Example
The lawyer handled the filing of all court documents.
El abogado manejó la presentación de todos los documentos judiciales.
C1 adjective /ˈflʌstərd/

flustered

desconcertado
Meaning
in a state of confusion or agitation
Example
She appeared flustered after being asked so many questions.
Ella parecía desconcertada después de tantas preguntas.
B1 verb /fel/

fell

derribar, talar
Meaning
to cut down a tree; to cause to fall; to strike down
Example
The lumberjacks felled several trees in the forest today.
Los leñadores talaron varios árboles en el bosque hoy.
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.
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.
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.
B1 adverb /ˈfɜːrstli/

firstly

primero
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.
Primero, necesitamos abordar el problema del presupuesto antes de continuar.
C1 adjective /flæmˈbɔɪənt/

flamboyant

llamativo, colorido o confiado
Meaning
showy, strikingly bold or colorful; confident and lively
Example
His flamboyant style drew everyone's attention at the party.
Su estilo llamativo atrajo la atención de todos en la fiesta.
C1 verb /flɪntʃ/

flinch

retroceder
Meaning
to suddenly move back or away due to fear or pain
Example
He didn’t flinch when the doctor gave him the injection.
Él no se echó atrás cuando el doctor le dio la inyección.
A1 adjective /frɛntʃ/

french

francés
Meaning
Relating to France, its people, or their language.
Example
We enjoyed delicious French cuisine on our trip to Paris.
Disfrutamos de deliciosa comida francesa en nuestro viaje a París.
B2 noun /ˈfriːˌlænsər/

freelancer

trabajador independiente
Meaning
A person who works independently without being permanently employed by one organization.
Example
She works as a freelancer designing websites for different clients.
Ella trabaja como freelancer diseñando sitios web para diferentes clientes.
C1 noun /ˈfoʊk.lɔːr/

folk-lore

folklore
Meaning
The traditional beliefs, customs, stories, songs, and practices of a community, passed down through generations.
Example
Bangladeshi folk-lore is rich with myths and legends.
El folklore mexicano está lleno de mitos y leyendas.
C1 noun, verb /fɔːrd/

ford

vado
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.
Los viajeros decidieron cruzar el río por un vado al amanecer.
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.
A1 preposition /frəm/ or /frʌm/

from

de
Meaning
Used to indicate the starting point of a journey, action, or source.
Example
She came from Dhaka to visit her family.
Ella vino de Dhaka para visitar a su familia.
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.
B2 noun /ˈfleɪvər/

flavor

sabor
Meaning
The distinctive taste of a food or drink.
Example
This ice cream has a delicious mango flavor.
Este helado tiene un delicioso sabor a mango.
A2 noun /flaɪt/

flight

vuelo / vuelo
Meaning
the act of flying, typically through the air; or a scheduled trip by an aircraft
Example
Our flight to London was delayed due to bad weather.
Nuestro vuelo a Londres se retrasó debido al mal tiempo.
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.
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.
C2 verb /feɪz/

faze

perturbar
Meaning
to disturb or disconcert someone; to cause to feel unsettled
Example
She was not fazed by the unexpected question.
Ella no se perturbó por la pregunta inesperada.
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.
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.
B1 noun /ˈfɛloʊ/

fellow

compañero
Meaning
a person who shares a common situation, interest, or activity with another
Example
He is a fellow student in my class.
Él es un compañero de clase en mi clase.
B2 verb /ˈfrʌsˌtreɪt/

frustrate

frustrar
Meaning
to prevent from accomplishing; to make someone feel annoyed
Example
The traffic jam frustrated all the commuters.
El embotellamiento de tráfico frustró a todos los pasajeros.
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.
B1 noun /ˈfʌŋkʃən/

function

función
Meaning
An activity or purpose natural to or intended for a person or thing.
Example
The main function of the heart is to pump blood.
La principal función del corazón es bombear sangre.
B1 verb /ˈfɛri/

ferry

transportar en ferry
Meaning
to transport by boat; to carry back and forth
Example
The boat ferried passengers across the river.
El bote transportó a los pasajeros a través del río.
C1 noun (plural of fungus) /ˈfʌndʒaɪ/

fungi

hongo
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.
Los hongos desempeñan un papel importante en la descomposición de materia orgánica en la naturaleza.
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.
B2 noun /ˈfreʃmən/

freshman

estudiante de primer año
Meaning
a first-year student at a high school, college, or university
Example
The freshman felt nervous on his first day at university.
El estudiante de primer año se sintió nervioso en su primer día en la universidad.
C1 noun /ˈflæt.ər.i/

Flattery

adulación
Meaning
excessive and insincere praise, given especially to further one's own interests
Example
His constant flattery made everyone suspicious of his true motives.
Su constante adulación hizo que todos sospecharan de sus verdaderas intenciones.
A2 adverb /fɔːrˈɛvər/

forever

para siempre
Meaning
For all future time; for always.
Example
She promised to love him forever.
Ella prometió amarlo para siempre.
C2 verb /ˈfʌdəl/

fuddle

confundir
Meaning
To confuse or stupefy, especially with alcohol or overwhelming information.
Example
The complicated instructions fuddled the new employees.
Las instrucciones complicadas confundieron a los nuevos empleados.
B1 noun freɪm

Frame

marco
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 árbol genealógico enmarcado puede exhibirse en tu hogar.
A1 noun /ˈfɑːðər/

father

felicidad
Meaning
A male parent of a child.
Example
His father taught him how to ride a bicycle.
Ella no pudo esconder su felicidad cuando recibió el premio.
B2 adjective /ˈfræntɪk/

frantic

desesperado
Meaning
Extremely anxious, hurried, or out of control due to fear or excitement.
Example
She made a frantic call to her family after the accident.
Ella hizo una llamada desesperada a su familia después del accidente.
B1 noun /feɪm/

Fame

fama
Meaning
the condition of being known or talked about by many people
Example
The young actor achieved international fame with his latest movie.
El joven actor alcanzó fama internacional con su última película.
A2 noun /fɪər/

Fear

miedo; temor
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.
Ella superó su miedo a las alturas tomando clases de escalada.
A1 verb /fərˈɡet/

forget

olvidar
Meaning
to be unable to remember something; to fail to bring something to mind
Example
Don't forget to lock the door when you leave.
No olvides cerrar la puerta cuando te vayas.
C2 noun /fækˈtoʊtəm/

factotum

trabajador polifacético
Meaning
an employee who does many different types of work; a general servant
Example
He worked as a factotum, handling both clerical and maintenance duties.
Trabajaba como un factótum, manejando tanto tareas administrativas como de mantenimiento.
A2 noun /ˈfɪɡ.jər/

Figure

figura; imagen; número;
Meaning
a number, especially one which forms part of official statistics; the shape of a human body
Example
The sales figure for this quarter exceeded all expectations.
La cifra de ventas de este trimestre superó todas las expectativas.
C2 adjective /ˈflæs.ɪd/

Flaccid

flácido; flojo; colapsado;
Meaning
soft and limp; lacking firmness; drooping
Example
The plant's leaves became flaccid after days without water.
Las hojas de la planta se volvieron flácidas después de varios días sin agua.
B2 noun fɪkst ˈɪnkʌm

fixed income

ingresos fijos
Meaning
Investment that provides a return in the form of fixed periodic payments.
Example
Fixed income investments provide reliable returns.
Las inversiones de ingreso fijo proporcionan rendimientos confiables.
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.
C2 noun /ˈfoʊksl/

forecastle

castillo de proa
Meaning
The forward part of a ship below the deck, traditionally used as living quarters for the crew.
Example
The sailors gathered in the forecastle after their shift.
Los marineros se reunieron en el castillo de proa después de su turno.
A2 adjective /ˈfɔːrən/ or /ˈfɑːrən/

foreign

extranjero
Meaning
Belonging to or coming from another country.
Example
She loves studying foreign languages.
A ella le encanta estudiar lenguas extranjeras.
C1 adjective ˈflʌd proʊn

flood-prone

propenso a inundaciones
Meaning
Susceptible to flooding; likely to experience floods frequently.
Example
Bangladesh is a flood-prone deltaic nation.
Bangladesh es una nación deltaica propensa a inundaciones.
B2 noun fəˈtiːɡ

fatigue

fatiga
Meaning
Physical or mental exhaustion due to prolonged exertion or mental stress
Example
Lack of sleep leads to extreme fatigue.
La falta de sueño conduce a una fatiga extrema.
B1 noun /ˈfaɪn.dɪŋ/

finding

descubrimiento, conclusión o resultado obtenido después de una investigación
Meaning
a discovery, conclusion, or result reached after investigation
Example
The scientist published her findings in a leading journal.
La científica publicó sus hallazgos en una revista de prestigio.
C1 noun/verb /ˈfʌrəʊ/

furrow

surco
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.
El agricultor hizo surcos en el campo.
C1 noun /ˈfaɪərɑːm/

firearm

arma de fuego
Meaning
a weapon capable of firing a projectile using gunpowder or other propellant
Example
The police found a hidden firearm during the investigation.
La policía encontró un arma de fuego oculta durante la investigación.
A1 number /ˌfɪfˈtiːn/

fifteen

quince
Meaning
the number 15
Example
There are fifteen students in the class.
Hay quince estudiantes en la clase.
B2 noun /foʊm/

Foam

espuma
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.
Las olas chocaron contra las rocas, creando espuma blanca en la orilla.
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.
A1 adverb /fɑːr/

far

lejos
Meaning
at, to, or by a great distance
Example
The school is far from my house.
La escuela está lejos de mi casa.
B2 noun /ˌfæs.ɪˈneɪ.ʃən/

Fascination

fascinación; atracción; asombro
Meaning
the power to fascinate someone; the state of being intensely interested
Example
Her fascination with ancient history led her to become an archaeologist.
Su fascinación por la historia antigua la llevó a convertirse en arqueóloga.
A2 noun/verb /ˈfɪʃɪŋ/

fishing

pesca
Meaning
the activity of catching fish
Example
Fishing is a popular activity in coastal villages.
La pesca es una actividad popular en las aldeas costeras.
C1 noun ˈflɔː.rə ænd ˈfɔː.nə

flora and fauna

flora y fauna
Meaning
The plants and animals of a particular region, habitat, or geological period.
Example
The Galápagos Islands have unique flora and fauna.
Las Islas Galápagos tienen una flora y fauna únicas.
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.
C1 noun /fɪˈnænʃɪər/

financier

financista
Meaning
a person who manages large amounts of money or investments
Example
The financier advised the company on its investments.
El financista asesoró a la empresa sobre sus inversiones.
A2 noun /ˈfrɛndʃɪp/

friendship

amistad
Meaning
A close and trusting relationship between two or more people.
Example
Their friendship has lasted since childhood.
Su amistad ha perdurado desde la infancia.
B1 noun /ˈfaɪər.mən/

Fireman

bombero
Meaning
a person whose job is to extinguish fires and rescue people
Example
The brave fireman rescued the family from the burning building.
El valiente bombero rescató a la familia del edificio en llamas.
C2 noun /ˈfiːæt/

fiat

decreto, mandato
Meaning
an official order or decree; authoritative command
Example
The new policy was enacted by royal fiat.
La nueva política fue implementada por un decreto real.
B2 adjective /ˈfɔːrtʃənət/

fortunate

afortunado
Meaning
Having good luck or receiving something desirable by chance.
Example
She was fortunate to escape the accident without injuries.
Ella fue afortunada de escapar del accidente sin heridas.
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.
A2 adjective /fænˈtæstɪk/

Fantastic

fantástico; maravilloso; excelente
Meaning
extremely good; wonderful; excellent
Example
The movie was absolutely fantastic!
¡La película fue absolutamente fantástica!
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 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.
C1 noun /fɪkˈseɪ.ʃən/

fixation

fijación o interés obsesivo en algo o alguien
Meaning
An obsessive interest in or feeling about someone or something.
Example
His fixation on perfectionism delayed project completion.
Su fijación con el perfeccionismo retrasó la finalización del proyecto.
C2 noun /fluː/

flue

conducto de humos
Meaning
A pipe or channel for smoke and waste gases produced by a fire, gas heater, or power station.
Example
The chimney flue needs to be cleaned regularly.
El conducto de humos de la chimenea necesita ser limpiado regularmente.
B2 verb /ˈfɪltər/

filter

filtrar
Meaning
to pass a substance through a device to remove unwanted material or to selectively pass certain items
Example
She used a coffee filter to separate the grounds from the liquid.
Ella usó un filtro de café para separar los posos del líquido.
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.
C2 adjective /ˈfʌsti/

fusty

húmedo y rancio
Meaning
smelling stale, damp, or stuffy; old-fashioned
Example
The room smelled fusty after being closed for months.
La habitación olía a rancio después de estar cerrada durante meses.
B1 adverb /ˈfʊli/

fully

completamente
Meaning
completely or entirely; to the fullest extent
Example
She is fully aware of the risks.
Ella está completamente consciente de los riesgos.
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.
A2 adjective /ˈfaɪ.nəl/

Final

final; concluyente; decisivo; último
Meaning
last; concluding; decisive; ultimate
Example
This is the final exam of the semester.
Este es el examen final del semestre.
C2 adverb /ˈfɔːrbi/

forby

además
Meaning
In addition; besides (archaic Scottish/English word).
Example
He is kind and generous, and wise forby.
Él es amable y generoso, y además sabio.
C2 adjective /ˈfrɒθi/

frothy

espumoso
Meaning
Full of or covered with small bubbles; light and insubstantial.
Example
She ordered a cup of frothy cappuccino.
Ella pidió una taza de capuchino espumoso.
B2 noun /fliːt/

fleet

flota
Meaning
a group of ships, vehicles, or aircraft operating together under one command
Example
The navy deployed its entire fleet for the exercise.
La armada desplegó toda su flota para el ejercicio.
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.
A2 determiner/adjective /ˈfjuːər/

fewer

menos
Meaning
a smaller number of; not as many
Example
Fewer people attended the meeting than expected.
Menos personas asistieron a la reunión de lo esperado.
B1 noun /frʌˈstreɪʃən/

frustration

frustración
Meaning
The feeling of being upset or annoyed due to inability to achieve something.
Example
He felt deep frustration when his plans failed.
Sintió una profunda frustración cuando sus planes fracasaron.
C1 noun /fiˈæs.koʊ/

fiasco

fracaso total
Meaning
a complete failure, especially a ludicrous or humiliating one
Example
The event turned into a complete fiasco due to poor planning.
El evento se convirtió en un fracaso total debido a una mala planificación.
C1 noun/adjective ˈflɛdʒ.lɪŋ

fledgling

principiante, inexperto, recién establecido
Meaning
New, inexperienced, newly established.
Example
The fledgling startup needs investment.
La empresa principiante necesita inversión.
A1 noun/verb /fɪlm/

film

película
Meaning
a motion picture or movie; or to record on camera
Example
They watched a film together on the weekend.
Ellos vieron una película juntos el fin de semana.
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.