fertilize
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C1 verb /ˈfɜːr.tɪ.laɪz/

fertilize

Meaning
to make soil or land more fertile by adding substances
Example
Farmers fertilize the fields to increase crop yield.
C2 noun /flɛk/

fleck

Meaning
a small spot or mark, often of a different color
Example
There was a fleck of paint on the floor.
C1 verb/noun ˈfæð.əm

fathom

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.
B2 noun /fleɪm/

Flame

Meaning
a hot glowing body of ignited gas that is generated by something on fire
Example
The candle flame flickered gently in the evening breeze.
C2 noun /ˈfɪɡmənt/

figment

Meaning
something invented or imaginary; a fabrication of the mind
Example
The story of the haunted house is just a figment of her imagination.
C1 noun /frɪˈvɒləti/

frivolity

Meaning
Lack of seriousness; silly or trivial behavior.
Example
The teacher discouraged frivolity during the exam.
C1 noun /fɔːrˈmæl.ə.ti/

Formality

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.
C2 noun /ˈflætʃələns/

flatulence

Meaning
the accumulation of gas in the digestive system; excessive gas in the stomach or intestines
Example
Eating beans can sometimes cause flatulence.
B2 noun /ˈfriː.kwən.si/

Frequency

Meaning
the rate at which something occurs or is repeated over a particular period of time
Example
The frequency of earthquakes in this region has increased dramatically over the past decade.
C1 verb, noun /ˈflʌstər/

fluster

Meaning
to make someone agitated or confused
Example
The unexpected question flustered him.
C2 noun /foʊ ˈpɑː/

faux pas

Meaning
a social blunder or mistake in etiquette
Example
He committed a major faux pas by forgetting her birthday.
A1 noun /ˈfriː taɪm/

free time

Meaning
time when a person is not working or occupied and can do activities they enjoy
Example
She likes to read books in her free time.
C2 noun /ˈflæɡ ˌɒfɪsər/

flag-officer

Meaning
a senior naval officer entitled to fly a flag to mark the command
Example
The flag-officer reviewed the fleet before the ceremony.
B2 noun /ˈfɜːrneɪs/

furnace

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.
C2 noun /ˈfɪlɪɡri/

filigree

Meaning
delicate ornamental work of fine wire, usually of gold or silver
Example
The necklace was decorated with intricate gold filigree.
A1 verb /ˈfɪnɪʃ/

finish

Meaning
to complete or bring to an end; to reach the final point
Example
She finished her homework before dinner.
C2 adjective /fəˈlɪsɪtəs/

felicitous

Meaning
well-chosen, appropriate, or pleasing; marked by good fortune or happiness
Example
She made a felicitous remark that lightened the mood.
C1 verb /ˈfɔːltər/

falter

Meaning
to hesitate or lose strength or momentum
Example
Her voice faltered as she delivered the speech.
B2 noun /fɛər/

fare

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.
C2 noun /fluː/

flue

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.
A2 noun, verb /fɔːrm/

form

Meaning
the shape or structure of something; to bring something into existence
Example
Students filled out the registration form.
B1 noun /ˈfæn.si/

Fancy

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.
C1 noun /ˌfɪɡjʊˈriːn/

figurine

Meaning
a small ornamental statue or model of a human or animal
Example
She bought a porcelain figurine of a dancing ballerina.
C1 noun /ˈfaɪər.wɔːl/

firewall

Meaning
A network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules.
Example
A firewall protects networks from cyber-attacks.
B2 adverb /ˈflu:əntli/

Fluently

Meaning
in a smooth, effortless, and articulate manner; with ease and skill
Example
She speaks French fluently.
C1 adjective /ˈfræɡməntɪd/

fragmented

Meaning
Having been broken into fragments; disjointed or incomplete.
Example
The information was fragmented and difficult to understand.
A1 noun /ˈfɑːðər/

father

Meaning
A male parent of a child.
Example
His father taught him how to ride a bicycle.
A2 noun /ˈfɔːrɪst/

Forest

Meaning
a large area covered chiefly with trees and undergrowth
Example
We went hiking in the dense forest yesterday.
B2 noun /ˌfiː.ɑːnˈseɪ/

Fiancee

Meaning
a woman who is engaged to be married
Example
John bought a beautiful engagement ring for his fiancee.
B2 adjective /flɔːd/

flawed

Meaning
having a mistake or fault that reduces its value or quality
Example
The flawed design of the car led to a recall.
C2 adjective /ˈfrɒθi/

frothy

Meaning
Full of or covered with small bubbles; light and insubstantial.
Example
She ordered a cup of frothy cappuccino.
C1 noun /ˈfɔːls.hʊd/

Falsehood

Meaning
the state of being untrue; a lie
Example
The politician was caught spreading falsehoods about his opponent.
C1 noun /fɪˈdɛl.ɪ.ti/

fidelity

Meaning
Faithfulness to a person, cause, or belief, demonstrated by continuing loyalty and support.
Example
A dog's fidelity to its owner is unmatched.
C1 adjective /ˈfrɪdʒɪd/

Frigid

Meaning
extremely cold; freezing; icy
Example
The frigid weather made it difficult to go outside.
A1 verb /faɪnd/

find

Meaning
to discover or locate something that was lost or hidden
Example
I can't find my keys anywhere.
B2 adjective /ˈfʌsi/

fussy

Meaning
hard to please; very concerned with details
Example
The child is very fussy about what she eats.
C2 adjective/noun /fɪˈduː.ʃi.er.i/

fiduciary

Meaning
Involving trust, especially with regard to the relationship between a trustee and a beneficiary.
Example
Banks have fiduciary duties towards their clients.
C2 adjective /ˈfʌŋɡəs/

fungous

Meaning
relating to or resembling a fungus
Example
The damp basement had a fungous smell.
C2 noun /ˈfɜːrðərəns/

furtherance

Meaning
The advancement or promotion of something.
Example
The new policy was introduced in furtherance of social justice.
C1 adjective /fəˈnætɪk/

Fanatic

Meaning
extremely passionate about something; showing excessive enthusiasm or devotion
Example
He is a fanatic supporter of his football team.
C1 adjective /ˈfɜːr.vənt/

fervent

Meaning
having or showing intense passion or enthusiasm
Example
She gave a fervent speech about climate change.
C1 noun /ˈfreɪlti/

frailty

Meaning
The condition of being weak, delicate, or easily broken.
Example
Old age often comes with physical frailty.
C1 noun /ˈfaɪərɑːm/

firearm

Meaning
a weapon capable of firing a projectile using gunpowder or other propellant
Example
The police found a hidden firearm during the investigation.
B1 noun /ˈfɪnɪʃ laɪn/

finish line

Meaning
The line or point at the end of a race or competition where participants complete it.
Example
She sprinted towards the finish line and won the race.
C2 verb /ˈfrʌktɪˌfaɪ/

fructify

Meaning
To make fruitful or productive; to bear fruit.
Example
The new policies will help fructify the economic potential of the region.
C2 noun /fɔːrˈbɛrəns/

forbearance

Meaning
Patient self-control; restraint and tolerance, especially in difficult situations.
Example
She showed remarkable forbearance during the heated argument.
A2 verb /faɪt/

fight

Meaning
to engage in battle or combat; to struggle against
Example
The soldiers fight for their country.
A2 noun /ˈfɪʃ.ər.mən/

Fisherman

Meaning
a person who catches fish as a job or hobby
Example
The fisherman caught three large fish in the river today.
B2 adjective /ˈfræʤaɪl/

fragile

Meaning
Easily broken or damaged; delicate.
Example
Be careful with that vase, it's very fragile.
C2 noun /ˈfiːəlti/

fealty

Meaning
loyalty or allegiance, especially to a sovereign or lord
Example
The knight swore fealty to his king.
C1 noun /ˈfɔːrˌrʌnər/

forerunner

Meaning
A person or thing that comes before another; a predecessor or harbinger.
Example
The Wright brothers were the forerunners of modern aviation.
C1 noun /ˈfɔːrdʒəri/

forgery

Meaning
the crime of making fake documents, money, or artworks
Example
The bank detected a forgery in the signature on the cheque.
A1 preposition /fɔːr/

for

Meaning
used to indicate purpose, destination, or recipient
Example
This gift is for you.
A2 adverb, adjective, verb, noun /ˈfɔːrwərd/

forward

Meaning
toward the front; to advance or send ahead; an onward position or direction
Example
The troops moved forward to secure the bridge.
B2 adverb /ˈfɜ:rmli/

Firmly

Meaning
in a strong, steady, and unwavering manner
Example
She firmly believed in her decision.
C1 adjective + noun ˈfeɪvərəbəl klaɪˈmætɪk kənˈdɪʃənz

favorable climatic conditions

Meaning
Weather conditions that are suitable and beneficial for growth or development
Example
Winter offers favorable climatic conditions for farming.
C1 noun /fəˈsɑːd/

facade

Meaning
The front of a building; a false or superficial appearance
Example
The building's glass facade reflected the sunset.
B2 noun ˈflaɪ.ɪŋ kɑːrz

flying cars

Meaning
Vehicles that can travel both on roads and in the air.
Example
Flying cars could soon solve urban traffic congestion.
B1 noun /fəˈsɪl.ɪ.ti/

facility

Meaning
A place, amenity, or piece of equipment provided for a particular purpose.
Example
The facility was well-maintained.
B1 adverb /ˈfɔːtʃənətli/

fortunately

Meaning
by good luck; luckily
Example
Fortunately, no one was injured in the accident.
C2 adjective /ˈfæn.sɪ.ləs/

fanciless

Meaning
without imagination or creativity; plain or ordinary
Example
His drawings were simple and fanciless.
A2 adjective /fəˈmɪl.jər/

Familiar

Meaning
well-known; easily recognized; having knowledge of; informal and friendly
Example
This song sounds familiar to me.
C2 adjective /ˈfɛkləs/

feckless

Meaning
lacking initiative or strength of character; irresponsible
Example
His feckless attitude at work caused several missed deadlines.
A2 verb /fɪks/

fix

Meaning
To repair or make something work again.
Example
The mechanic fixed the broken car.
C1 adjective /ˈfleɪɡrənt/

flagrant

Meaning
shockingly noticeable or evident; glaringly wrong
Example
It was a flagrant violation of the rules.
B2 noun/verb /ˈfɒs.tər.ɪŋ/

fostering

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.
C2 noun /ˈfɒpəri/

foppery

Meaning
Foolish or excessive concern with one's appearance or manners; pretentious behavior.
Example
His obsession with fashion was dismissed as mere foppery.
A1 adjective /ˈfrɛndli/

friendly

Meaning
Kind and pleasant; showing goodwill and affection.
Example
The shop owner is very friendly to new customers.
C2 adjective /ˈfætʃuəs/

fatuous

Meaning
silly or foolish, especially in a self-satisfied way
Example
His fatuous comments during the meeting annoyed everyone.
C1 noun /ˈfɔːrˌbɛərz/

forebears

Meaning
Ancestors or people in previous generations from whom one is descended.
Example
We must honor the traditions of our forebears.
B2 noun ˈfreɪm.wɜːks

frameworks

Meaning
A basic structure underlying a system, concept, or text; an essential supporting structure.
Example
Frameworks define the basis of systems.
B1 noun /ˈfeɪvər/

favor

Meaning
An act of kindness or approval.
Example
She asked him for a small favor.
C1 noun /fəˈnætɪsɪzəm/

fanaticism

Meaning
the quality of being fanatical; extreme zeal or obsession
Example
Religious fanaticism can lead to intolerance and conflict.
C2 adjective /ˈfrəʊərd/

froward

Meaning
Difficult to deal with; contrary and disobedient.
Example
The teacher found the froward child hard to manage.
C2 adjective /ˈfjuːzəbl/

fusible

Meaning
Capable of being melted or fused.
Example
The engineer used a fusible alloy in the experiment.
A2 noun /frɪdʒ/

fridge

Meaning
a household appliance used to keep food and drinks cold to preserve freshness
Example
I put the milk back in the fridge after breakfast.
B1 noun /ˈfeɪ.ljər/

Failure

Meaning
lack of success; an unsuccessful person, enterprise, or thing
Example
The project's failure was due to poor planning and communication.
B2 noun /fɔːrt/

Fort

Meaning
a strong building or group of buildings where soldiers live and defend
Example
The ancient fort stood on top of the hill for centuries.
C1 noun /ˈfɔːrmən/

foreman

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.
C2 adjective /fækˈtɪʃəs/

factitious

Meaning
artificial or fabricated; not natural or genuine
Example
The excitement in his story seemed factitious and forced.
B1 adjective /ˈfriːkwənt/

Frequent

Meaning
happening often; occurring regularly; repeated
Example
He makes frequent visits to his grandmother.
B1 noun /flæʃ/

Flash

Meaning
a sudden brief burst of bright light; a very brief moment
Example
There was a bright flash of lightning followed by thunder.
C1 adjective /ˈflɪmzi/

flimsy

Meaning
weak, fragile, or lacking in strength; not convincing
Example
The chair was too flimsy to support his weight.
A1 preposition /frəm/ or /frʌm/

from

Meaning
Used to indicate the starting point of a journey, action, or source.
Example
She came from Dhaka to visit her family.
B1 noun /ˈfɛloʊ/

fellow

Meaning
a person who shares a common situation, interest, or activity with another
Example
He is a fellow student in my class.
B1 adjective /ˈfrʌstreɪtɪd/

frustrated

Meaning
feeling annoyed or upset because of inability to achieve something
Example
She felt frustrated after failing the exam.
B1 adjective /feɪld/

failed

Meaning
not successful in achieving a desired result
Example
The project failed to meet the expectations.
B2 noun /frɒk/

Frock

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.
A2 adjective /ˈfæstɪst/

fastest

Meaning
moving or capable of moving at the highest speed
Example
Usain Bolt is the fastest runner in the world.
C2 noun /feɪt/

fete

Meaning
a celebration or festival, often in honor of someone
Example
The village held a grand fete to celebrate the harvest.
B2 adjective /fəˈɡɪv.ɪŋ/

Forgiving

Meaning
ready and willing to forgive; merciful; lenient
Example
She has a forgiving nature and rarely holds grudges.
B2 adjective /ˈfes.tɪv/

Festive

Meaning
joyful; celebratory; having the characteristics of a festival
Example
The house looked festive with colorful decorations.
B2 adverb /ˈfɜ:rst hænd/

First-hand

Meaning
directly experienced or obtained; from the original source
Example
I experienced the earthquake first-hand.
C1 noun /ˈfjuː.tʃə.rɪst/

futurist

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.
C2 adjective /ˈfʊl.dʒənt/

fulgent

Meaning
Shining brightly; dazzling.
Example
The fulgent stars lit up the night sky.
C1 noun /ˈfjuː.də.lɪ.zəm/

feudalism

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.
C1 adjective /ˈfaɪ.naɪt/

Finite

Meaning
limited; having bounds or limits; not infinite
Example
Earth has finite natural resources.
A2 adjective /fɔːls/

False

Meaning
not true; incorrect; deceptive; artificial
Example
The witness gave false testimony in court.
C2 noun /ˈfʌstɪən/

fustian

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.
C2 noun /fiːf/

fief

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.
A1 noun /fʌn/

fun

Meaning
enjoyment, amusement, or light-hearted pleasure
Example
We had a lot of fun at the party.
B2 noun /ˈfeɪbəl/

fable

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.
C2 adjective /ˈfɒksi/

foxy

Meaning
Clever, cunning, or attractive.
Example
He came up with a foxy plan to win the game.
B2 adjective /ˈfeɪθ.fəl/

Faithful

Meaning
loyal and committed; reliable; true to one's beliefs
Example
She remained faithful to her principles throughout her career.
C1 noun /ˈfoʊ.kəs ˈtræk.ɪŋ/

focus tracking

Meaning
A technique of monitoring and maintaining attention on specific tasks or goals.
Example
Proper focus tracking improves productivity.
A1 noun /fʊt/

Foot

Meaning
the lower extremity of the leg that is in direct contact with the ground in standing or walking
Example
She hurt her foot while running.
B2 adverb /ˈfɔːrməli/

formally

Meaning
in a formal or official manner; according to established rules or conventions
Example
The agreement was formally signed by both parties.
C1 verb /fɔːˈbɛər/

forbear

Meaning
To refrain from doing something; to show patience or self-control.
Example
She forbore from commenting on his mistake.
C2 adjective /ˈfædɪʃ/

faddish

Meaning
Following a temporary trend or fashion
Example
Wearing neon clothes was a faddish style in the 1980s.
B2 noun /ˌfer.ˈwel/

Farewell

Meaning
an act of parting or of marking someone's departure
Example
The company organized a farewell party for the retiring manager.
B2 noun /fluːt/

Flute

Meaning
a musical wind instrument with holes along its length that is played by blowing across a hole at one end
Example
He played a sweet melody on his flute.
B2 noun /ˈfaɪ.bər/

fibre

Meaning
A thread or filament from which a vegetable tissue, mineral substance, or textile is formed; dietary material that aids digestion.
Example
Eating foods rich in fibre can improve your digestion.
C1 noun /ˈfɔːrɡraʊnd/

foreground

Meaning
the part of a scene that is nearest to and in front of the viewer
Example
The flowers in the foreground brightened the picture.
B1 noun /foʊk/

folk

Meaning
people in general, often referring to a group or community
Example
Country folk often live a simple life.
B2 noun /ˈfaʊn.dər/

Founder

Meaning
a person who establishes an institution or settlement; someone who starts or creates something
Example
Steve Jobs was the co-founder of Apple Inc. and revolutionized personal computing.
A2 noun /ˈfɪɡ.jər/

Figure

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.
C1 noun ˈflɔː.rə ænd ˈfɔː.nə

flora and fauna

Meaning
The plants and animals of a particular region, habitat, or geological period.
Example
The Galápagos Islands have unique flora and fauna.
B2 adjective /ˌfjuːtʃəˈrɪstɪk/

futuristic

Meaning
Having or involving very modern technology or design that is advanced beyond what is currently available
Example
Futuristic technologies are transforming industries worldwide.
C1 adjective ˈfɔːr.mɪ.də.bəl

formidable

Meaning
Inspiring fear or respect through being impressively large, powerful, intense, or capable.
Example
The boxer was a formidable opponent in the ring.
C2 noun /ˈfɜːrlɔːŋ/

furlong

Meaning
a unit of distance equal to 220 yards or about 201 meters
Example
The horse ran a furlong before slowing down.
B1 adjective /fɪkst/

fixed

Meaning
firmly in place; not changing or movable
Example
The schedule for the meeting is fixed for Monday morning.