foil
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B2 verb /fɔɪl/

foil

Meaning
To prevent something (especially a plan) from succeeding.
Example
The police foiled the robbery attempt.
B1 adjective /fɜːrm/

Firm

Meaning
solid; stable; strong; not yielding to pressure
Example
She has a firm grip on the rope.
C1 noun /ˈfɛləni/

felony

Meaning
a serious crime, usually punishable by imprisonment for more than one year
Example
He was convicted of a felony and sentenced to ten years in prison.
C2 verb /fɔːrˈboʊd/

forebode

Meaning
To predict or have a strong inner feeling of a future misfortune or evil.
Example
Dark clouds forebode a coming storm.
C1 adjective /ˈfɔːrθˌraɪt/

forthright

Meaning
Direct and honest in speech or behavior; straightforward.
Example
She was forthright in her criticism of the policy.
A2 noun /ˈfɔːrɪst/

Forest

Meaning
a large area covered chiefly with trees and undergrowth
Example
We went hiking in the dense forest yesterday.
A2 noun /ˈfɑːr.mər/

Farmer

Meaning
a person who grows crops or raises animals for food or profit
Example
The farmer planted rice in the fertile fields this season.
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.
C2 adjective /ˈfʌsti/

fusty

Meaning
smelling stale, damp, or stuffy; old-fashioned
Example
The room smelled fusty after being closed for months.
C2 verb /ˈfɒn.dəl/

fondle

Meaning
To stroke or caress lovingly or gently.
Example
She fondled the kitten gently in her lap.
C1 noun /fəˈtæləti/

fatality

Meaning
An occurrence of death by accident, disaster, or violence.
Example
The accident resulted in one fatality.
B2 adjective /ˈfræʤaɪl/

fragile

Meaning
Easily broken or damaged; delicate.
Example
Be careful with that vase, it's very fragile.
B2 noun /ˈfriːˌlænsər/

freelancer

Meaning
A person who works independently without being permanently employed by one organization.
Example
She works as a freelancer designing websites for different clients.
A1 preposition /fɔːr/

for

Meaning
used to indicate purpose, destination, or recipient
Example
This gift is for you.
C2 adjective /ˈfɪt.fəl/

fitful

Meaning
occurring in irregular bursts; not continuous or steady
Example
He had a fitful sleep due to the storm.
C1 noun /fəˌsɪlɪˈteɪʃən/

facilitation

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.
C2 adjective /ˈfraɪəbl/

friable

Meaning
Easily crumbled or reduced to powder.
Example
The old brick wall was friable and broke apart at a touch.
B2 adjective /ˈfes.tɪv/

Festive

Meaning
joyful; celebratory; having the characteristics of a festival
Example
The house looked festive with colorful decorations.
C1 noun /ˌfɜːrmənˈteɪʃən/

fermentation

Meaning
a chemical process by which substances like sugar are converted into alcohol or acids using microorganisms
Example
The fermentation of grapes produces wine.
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 adjective /ˈfuːlˌhɑːrdi/

foolhardy

Meaning
Recklessly bold or rash; taking foolish risks.
Example
It was foolhardy of him to climb the mountain without proper gear.
B1 noun /ˈfʌndɪŋ/

funding

Meaning
financial support for a project or organization
Example
The startup is seeking funding from investors.
A2 noun /ˈfɔːrənər/ or /ˈfɑːrənər/

foreigner

Meaning
A person from another country.
Example
The city welcomes every foreigner with kindness.
C2 noun /ˈfiːæt/

fiat

Meaning
an official order or decree; authoritative command
Example
The new policy was enacted by royal fiat.
B2 noun /ˈfjuːʒən/

fusion

Meaning
the process or result of joining two or more things together to form a single entity
Example
The restaurant offers a unique fusion of Asian and European cuisines.
C2 adjective /ˈfʊl.dʒənt/

fulgent

Meaning
Shining brightly; dazzling.
Example
The fulgent stars lit up the night sky.
C1 adjective /fərˈlɔːrn/

forlorn

Meaning
extremely sad, lonely, or abandoned
Example
The abandoned puppy looked so forlorn in the rain.
C2 noun /ˈfriːˌbuːtər/

freebooter

Meaning
A pirate or plunderer who roams freely in search of wealth.
Example
The freebooter raided the merchant ships along the coast.
C2 adjective /ˈfluːviəl/

fluvial

Meaning
relating to or found in a river
Example
The fluvial deposits indicated the presence of an ancient river system.
C2 noun /fəˈlɪsɪti/

felicity

Meaning
intense happiness; the ability to find appropriate expression for one's thoughts
Example
She was known for her felicity in conversation and cheerful nature.
B1 noun /fæts/

fats

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.
C1 verb /ˈfrɒlɪk/

frolic

Meaning
to play and move about cheerfully, energetically, or playfully
Example
The children frolicked in the garden all afternoon.
B2 noun /ˈfɛə(r)nɪs/

fairness

Meaning
the quality of being free from bias, favoritism, or injustice
Example
She always strives for fairness in her decisions.
C2 noun /ˈfæn.feər/

fanfare

Meaning
a short ceremonial tune or display of publicity to attract attention
Example
The new product was launched with much fanfare.
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.
C1 adjective ˈfæʃ.ɪst

fascist

Meaning
Relating to or characteristic of fascism; extremely authoritarian.
Example
Fascist governance undermines freedom.
B1 verb /ˈfraɪtən/

frighten

Meaning
to cause fear or alarm in someone
Example
The loud noise frightened the child.
C1 adjective /fəˈnætɪkəl/

fanatical

Meaning
showing extreme enthusiasm or obsession
Example
She has a fanatical interest in collecting vintage stamps.
C2 adjective /ˈfɔːnɪŋ/

fawning

Meaning
displaying exaggerated flattery or affection
Example
Her fawning compliments made everyone uncomfortable.
A1 number /ˌfɪfˈtiːn/

fifteen

Meaning
the number 15
Example
There are fifteen students in the class.
C2 verb /ˈfrɪtər/

fritter

Meaning
To waste time, money, or energy on trivial matters.
Example
He frittered away his savings on unnecessary gadgets.
C1 adverb /ˈfɜː.vənt.li/

Fervently

Meaning
with passionate intensity; ardently; with great emotion or enthusiasm
Example
She fervently hoped that her dreams would come true.
C2 noun /ˈfræŋkɪnsɛns/

frankincense

Meaning
An aromatic gum resin used in incense and perfumes, often in religious ceremonies.
Example
The temple was filled with the sweet smell of burning frankincense.
C1 adjective /fəˈroʊ.ʃəs/

Ferocious

Meaning
savagely fierce, cruel, or violent; extremely aggressive
Example
The ferocious storm destroyed many houses in the coastal area.
C2 adjective /ˈfiːtɪd/

foetid

Meaning
having an offensive, unpleasant smell
Example
The foetid smell from the garbage made it hard to breathe.
C2 verb /flɛdʒ/

fledge

Meaning
To develop wing feathers large enough for flight; to bring up until able to fly.
Example
The young birds will fledge in a few weeks.
B2 noun /flɔː/

flaw

Meaning
a defect or imperfection in something
Example
The diamond had a small flaw that was barely visible.
A2 adjective /ˈfroʊzən/

frozen

Meaning
preserved by being made extremely cold; turned into ice
Example
The lake was completely frozen during winter.
C1 adjective /ˌfʊl ˈbɒd.id/

full-bodied

Meaning
Having a strong, rich, and robust quality, especially of wine, coffee, or voice.
Example
He prefers a full-bodied red wine with his dinner.
C1 noun/adjective ˈflɛdʒ.lɪŋ

fledgling

Meaning
New, inexperienced, newly established.
Example
The fledgling startup needs investment.
C2 noun /frɒnd/

frond

Meaning
A large, divided leaf of a fern, palm, or similar plant.
Example
The fern's frond stretched gracefully over the garden path.
C1 noun /flæt fɪʃ/

Flat fish

Meaning
a type of fish with a flattened body that lives on the sea floor
Example
Flat fish like sole and flounder are excellent for grilling.
C1 adjective /frəˈtɜːrnəl/

fraternal

Meaning
Relating to brothers or brotherhood; friendly and supportive.
Example
The two nations maintain a fraternal relationship.
C2 noun /ˈfeɪ.tə.lɪ.zəm/

fatalism

Meaning
the belief that all events are predetermined and inevitable
Example
He embraced fatalism, believing that nothing he did could change his destiny.
C1 adjective /ˈfliː.tɪŋ/

fleeting

Meaning
Lasting for a very short time; passing quickly.
Example
Happiness can be fleeting, so cherish every moment.
C2 noun /flæks/

flax

Meaning
a plant whose fibers are used to make linen and whose seeds are edible
Example
Flax is often used in making linen fabrics.
C2 adjective /ˈflaɪti/

flighty

Meaning
unstable, impulsive, or easily distracted; lacking seriousness or stability
Example
She’s too flighty to stick with one job for long.
C2 noun /ˈfɔːrkɔːrt/

forecourt

Meaning
an open area in front of a large building, especially a petrol station or hotel
Example
The car was parked in the hotel forecourt.
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 noun /ˈfɔːrsəm/

foursome

Meaning
a group of four people or things, especially in games or social activities
Example
The foursome enjoyed a game of golf together.
B2 noun /ˈfʌndˌreɪzɪŋ/

fundraising

Meaning
the process of collecting money for a cause or project
Example
The organization is organizing a fundraising event.
B1 verb /fəʊld/

fold

Meaning
to bend something, especially paper or cloth, so that one part covers another
Example
She folded the letter neatly before placing it in the envelope.
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 noun /ˈfoʊ.li.oʊ/

folio

Meaning
A sheet of paper folded once to form two leaves (four pages) of a book; also a term for a large book or manuscript.
Example
The library houses an ancient Shakespeare folio.
B1 noun faʊnˈdeɪʃən

foundation

Meaning
The lowest load-bearing part of a building, typically below ground level.
Example
The foundation of the building was laid with strong materials.
C2 adjective /ˈflɪpənt/

flippant

Meaning
not showing a serious or respectful attitude
Example
His flippant remarks annoyed the teacher.
C1 adjective /ˈfɑːð.ər.ləs/

fatherless

Meaning
without a father
Example
The fatherless child relied on the support of his community.
C2 noun /ˈfʊl.krəm/

fulcrum

Meaning
The point or support on which a lever pivots; a central or essential point of activity or support.
Example
The teacher became the fulcrum of change in the school.
C1 adjective /ˈfæn.sɪ.fəl/

fanciful

Meaning
overimaginative, unrealistic, or whimsical
Example
The story was too fanciful to be true.
C1 adjective /ˈfuːlpruːf/

foolproof

Meaning
Designed to be very easy to use or understand, leaving no possibility of failure or error.
Example
The new software has a foolproof installation process.
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.
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.
C1 adjective /ˈfruːt.ləs/

Fruitless

Meaning
unsuccessful; futile; pointless;
Example
After hours of searching, their efforts proved fruitless.
C2 adjective fəˈleɪ.ʃəs

fallacious

Meaning
Based on false reasoning or misleading arguments.
Example
His argument was based on fallacious reasoning.
C1 noun /ˈfɔːrˌbɛər/

forebear

Meaning
An ancestor, especially one who lived a long time ago.
Example
He often speaks of his forebears with great respect.
C2 noun /ˈfɔːrʃɔːr/

foreshore

Meaning
The part of the shore between the high and low tide marks
Example
Children were playing on the foreshore, collecting shells.
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 adjective /ˈfɪs.kəl/

fiscal

Meaning
Relating to government revenue, especially taxes, or public money management.
Example
The government introduced new fiscal policies to control inflation.
A1 number /ˈfɔːrti/

forty

Meaning
the number 40; ten times four
Example
She celebrated her forty years of life with a big party.
B2 adjective /ˈfeɪtl/

fatal

Meaning
causing death; leading to disaster
Example
The accident proved fatal for the driver.
B2 adjective /ˈfɛmənɪn/

feminine

Meaning
having qualities traditionally associated with women; feminine in nature
Example
She has a very feminine style of dressing.
A2 adjective /flæt/

flat

Meaning
Smooth and level, without raised areas or curves.
Example
The road ahead was completely flat.
C1 adjective /ˈflæɡɪŋ/

flagging

Meaning
becoming tired, weaker, or less enthusiastic
Example
After hours of work, his energy was flagging.
B1 adjective /ˈfæbjələs/

Fabulous

Meaning
extremely good; wonderful; extraordinary
Example
She wore a fabulous dress to the party.
B1 noun /ˈfiːdbæk/

feedback

Meaning
information or opinions about how well someone is doing something
Example
She asked her teacher for feedback on her essay.
B2 noun /ˈfriːdəm ˌfaɪtər/

freedom fighter

Meaning
a person who takes part in an armed or political struggle to achieve freedom or independence for their people or country
Example
The freedom fighter dedicated his life to the liberation of his homeland.
B2 verb ˈfaɪ.nəl.aɪz

finalize

Meaning
To complete arrangements for something; put into final form.
Example
The treaty was finalized after the discussions.
C2 adjective /ˈfiːbraɪl/

febrile

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.
C1 verb /fɔːrˈseɪk/

forsake

Meaning
to abandon or give up something or someone
Example
He decided not to forsake his old friends despite his success.
B2 noun ˈfreɪm.wɜːk

framework

Meaning
An essential supporting structure of a building, vehicle, or object; a basic structure underlying a system, concept, or text.
Example
A strong framework is vital for governance.
C1 noun ˌfɜːr.tɪ.laɪˈzeɪ.ʃən

fertilization

Meaning
The process of adding nutrients to soil to increase crop productivity.
Example
Organic fertilization enhances soil health.
C1 noun /frɪˈvɒləti/

frivolity

Meaning
Lack of seriousness; silly or trivial behavior.
Example
The teacher discouraged frivolity during the exam.
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.
C2 adjective /ˈfiːbəlˌmaɪndɪd/

feebleminded

Meaning
lacking intelligence or mental capacity; foolish or weak-minded
Example
The feebleminded man struggled to understand basic instructions.
C2 adjective /ˈfætʃuəs/

fatuous

Meaning
silly or foolish, especially in a self-satisfied way
Example
His fatuous comments during the meeting annoyed everyone.
C2 noun /feɪnt/

feint

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.
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 /ˈfaɪər.brænd/

firebrand

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.
A1 adjective /ˈfʌn.i/

Funny

Meaning
humorous; strange; amusing;
Example
He told a funny joke that made everyone laugh.
B2 noun /ˈfeɪ.lɪŋ/

Failing

Meaning
a weakness, especially in a person's character; a fault
Example
His only failing is that he talks too much during meetings.
C2 adjective /ˈfrɛtfəl/

fretful

Meaning
Feeling or showing distress or irritation.
Example
The baby was fretful all night and could not sleep.
A2 adjective, adverb /ˈfæstər/

faster

Meaning
moving or able to move quickly; more quickly than usual
Example
This car is faster than the old one.
A2 noun /ˈfrɛndʃɪp/

friendship

Meaning
A close and trusting relationship between two or more people.
Example
Their friendship has lasted since childhood.
C1 verb /flɪntʃ/

flinch

Meaning
to suddenly move back or away due to fear or pain
Example
He didn’t flinch when the doctor gave him the injection.
B2 adjective /ˈfɪr.fəl/

fearful

Meaning
feeling afraid or showing fear
Example
She was fearful of walking alone at night.
B1 noun /ˈfaɪər.mən/

Fireman

Meaning
a person whose job is to extinguish fires and rescue people
Example
The brave fireman rescued the family from the burning building.
C1 noun fɔːlt ˈtɒl.ər.əns

fault-tolerance

Meaning
The ability of a system to continue operating properly in the event of the failure of some of its components.
Example
Fault-tolerance ensures dependable systems.
C2 verb /ˈfrɪzəl/

frizzle

Meaning
to fry something until it becomes crisp and curled, or to make a sizzling noise
Example
The bacon began to frizzle in the pan.
C2 noun /floʊ/

floe

Meaning
a large sheet of floating ice
Example
The polar bears rested on the ice floe.
C2 verb /fɪltʃ/

filch

Meaning
to steal something in a sneaky or petty way
Example
He tried to filch a candy bar from the shop.
A2 verb /fərˈɡɪv/

forgive

Meaning
to stop feeling angry or resentful toward someone; to pardon
Example
She decided to forgive him for his mistakes.
C2 adjective /fjuːˈɡeɪʃəs/

fugacious

Meaning
Lasting only a short time; fleeting or ephemeral.
Example
Youth is beautiful but fugacious.
C2 adjective /ˈflæs.ɪd/

Flaccid

Meaning
soft and limp; lacking firmness; drooping
Example
The plant's leaves became flaccid after days without water.
C1 noun /foʊ/

foe

Meaning
an enemy or opponent
Example
The knight fought bravely against his foe.
C1 noun /fɪˈnænʃɪər/

financier

Meaning
a person who manages large amounts of money or investments
Example
The financier advised the company on its investments.
C2 noun /fluːk/

fluke

Meaning
A stroke of luck; an unexpected piece of good fortune.
Example
Winning the lottery was a complete fluke.
B2 noun /ˈfjʊr.i/

Fury

Meaning
wild or violent anger; extreme intensity of emotion or activity
Example
His fury was evident when he discovered someone had stolen his bicycle.
A1 verb /fərˈɡet/

forget

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.
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.
B2 noun /fʌs/

Fuss

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.
C1 noun /ˈfɔːreɪ/

foray

Meaning
A sudden short attack or attempt, especially into new activity or territory.
Example
The company made its first foray into the international market.