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A2 adjective /flæt/

flat

Meaning
Smooth and level, without raised areas or curves.
Example
The road ahead was completely flat.
B2 noun ˈfrʌn.tɪərz

frontiers

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.
C1 noun /fæd/

fad

Meaning
a temporary fashion or trend; a short-lived craze
Example
The new diet became a popular fad among teenagers.
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.
C2 adjective /ˈfæð.əm.ləs/

fathomless

Meaning
impossible to understand or measure; very deep
Example
The ocean seemed fathomless as it stretched to the horizon.
B2 adverb /ˈfɔ:rmoast/

Foremost

Meaning
most importantly; above all; in the first place
Example
First and foremost, we need to ensure safety.
C2 adjective /ˈfæn.sɪ.ləs/

fanciless

Meaning
without imagination or creativity; plain or ordinary
Example
His drawings were simple and fanciless.
B1 adjective /ˈfæbjələs/

Fabulous

Meaning
extremely good; wonderful; extraordinary
Example
She wore a fabulous dress to the party.
B2 verb /ˈfrʌsˌtreɪt/

frustrate

Meaning
to prevent from accomplishing; to make someone feel annoyed
Example
The traffic jam frustrated all the commuters.
B2 noun /ˈfaʊn.tən/

Fountain

Meaning
a natural spring of water; an artificial structure from which water flows
Example
The fountain in the park attracts many visitors.
B1 noun, verb /flæɡ/

flag

Meaning
a piece of fabric with a symbol or colors; or to mark or signal attention
Example
They raised the national flag during the ceremony.
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 noun /ˌfæb.rɪˈkeɪ.ʃən/

fabrication

Meaning
The invention of false or misleading information; a lie or falsehood.
Example
The article was full of fabrication and misleading claims.
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.
C2 adjective /ˈfækʃəs/

factious

Meaning
causing disagreement or division within a group; inclined to form factions
Example
The debate became factious, splitting the committee into rival camps.
B2 noun /ˌfæs.ɪˈneɪ.ʃən/

Fascination

Meaning
the power to fascinate someone; the state of being intensely interested
Example
Her fascination with ancient history led her to become an archaeologist.
B2 verb /ˈfɜːrnɪʃ/

furnish

Meaning
to provide or supply with furniture or equipment
Example
They furnished the new house with modern furniture.
C1 verb /ˈfɪdʒɪt/

fidget

Meaning
to make small movements, especially because of nervousness or impatience
Example
The child began to fidget during the long lecture.
B2 noun fəˈtiːɡ

fatigue

Meaning
Physical or mental exhaustion due to prolonged exertion or mental stress
Example
Lack of sleep leads to extreme fatigue.
C1 verb /ˈfæbrɪkeɪt/

fabricate

Meaning
to invent or concoct something, often with the intent to deceive; or to construct or manufacture
Example
The witness fabricated his testimony to protect himself.
C2 adjective /ˈfer.əs/

ferrous

Meaning
containing or consisting of iron
Example
Ferrous metals are commonly used in construction.
C2 noun, verb /ˈfɪlɪˌbʌstər/

filibuster

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.
C2 noun /ˈfɛndər/

fender

Meaning
a part of a vehicle that frames a wheel well to protect against mud or debris
Example
The car's fender was dented in the accident.
B2 noun /ˈfæbrɪk/

fabric

Meaning
Cloth or material produced by weaving or knitting fibers.
Example
The tailor used silk fabric to make the dress.
C2 adjective /ˈfæl.oʊ/

fallow

Meaning
Describing land that is left unplanted for a period to restore its fertility, allowing soil to recover nutrients and break pest and disease cycles.
Example
Farmers leave their fields fallow to restore soil fertility.
C1 noun /ˈfɔːrˌθɔːt/

forethought

Meaning
careful consideration of what will be necessary or may happen in the future
Example
With a little forethought, we could have avoided the problem.
C2 verb /ˈflædʒəˌleɪt/

flagellate

Meaning
to whip or flog someone, either literally or as a form of punishment or self-discipline
Example
In history, some monks would flagellate themselves as penance.
A2 verb /fraɪ/

fry

Meaning
to cook food in hot oil or fat
Example
She fries eggs for breakfast every morning.
B2 verb /flɜːrt/

flirt

Meaning
to behave as if you are attracted to someone, but not in a serious way
Example
She often flirts with her colleagues at work.
C1 noun ˌfɔːtɪfɪˈkeɪʃn

fortification

Meaning
A defensive wall or other reinforcement built to strengthen a place against attack.
Example
The fortifications protected the city.
B1 noun /ˈfɪkʃən/

fiction

Meaning
Literature created from the imagination, not presented as fact.
Example
She enjoys reading science fiction novels.
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.
C1 noun /fiːt/

feat

Meaning
an achievement that requires great courage, skill, or strength
Example
Climbing Mount Everest was a remarkable feat.
C2 adjective /fəˈsiːʃəs/

facetious

Meaning
Treating serious issues with deliberately inappropriate humor
Example
He was being facetious when he said he wanted to live on the moon.
A1 adjective /ˈfrɛndli/

friendly

Meaning
Kind and pleasant; showing goodwill and affection.
Example
The shop owner is very friendly to new customers.
C1 noun ˈfɔː.saɪt

foresight

Meaning
The ability to predict or the action of predicting what will happen or be needed in the future.
Example
His foresight helped the company avoid financial losses.
C2 adjective /ˈfʊl.səm/

fulsome

Meaning
Excessively flattering or insincere; abundant or generous in amount.
Example
He offered fulsome praise to his boss.
C1 noun /frɪndʒ/

fringe

Meaning
A decorative border of threads; the outer edge or margin of something.
Example
The festival had a fringe of small independent performances.
C1 noun /ˈfjuː.dʒə.tɪv/

Fugitive

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.
C1 noun ˌflʌk.tʃuˈeɪ.ʃən

fluctuation

Meaning
An irregular rising and falling in number or amount; a variation.
Example
The stock market experiences frequent fluctuation.
B2 noun/verb /flɑːk/

flock

Meaning
a group of birds or animals; to gather or move in a crowd
Example
Tourists flocked to the beach during summer.
A2 noun/adjective /ˈfiːmeɪl/

female

Meaning
a person or animal of the sex that can bear offspring; relating to women or girls
Example
The female lion protects her cubs fiercely.
B2 adjective, verb (present participle) /ˈfloʊtɪŋ/

floating

Meaning
remaining on the surface of a liquid without sinking; moving lightly or freely
Example
The boat was floating gently on the calm lake.
C2 noun /ˈfiːəlti/

fealty

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

falter

Meaning
to hesitate or lose strength or momentum
Example
Her voice faltered as she delivered the speech.
C1 noun ˌfiː.zəˈbɪl.ə.ti

feasibility

Meaning
The state or degree of being easily or conveniently done; possibility.
Example
The company conducted a feasibility study before launching the project.
B1 adverb /ˈfɔːtʃənətli/

fortunately

Meaning
by good luck; luckily
Example
Fortunately, no one was injured in the accident.
A1 adjective /fjuː/

few

Meaning
A small number of; not many.
Example
Only a few students attended the class.
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 /ˈflɔːrəl/

floral

Meaning
Relating to flowers or decorated with flowers.
Example
She wore a beautiful floral dress to the party.
C1 adjective /ˈfiːbl/

feeble

Meaning
lacking physical strength or vigor; weak
Example
After the illness, she felt too feeble to stand.
C1 noun /ˈfænsiər/

fancier

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.
B2 adjective /ˈfeɪvərəbəl/

favorable

Meaning
expressing approval or support; advantageous
Example
The weather conditions were favorable for the outdoor event.
A2 adjective /ˈfraɪtənd/

frightened

Meaning
feeling fear or anxiety; scared
Example
The child was frightened by the loud noise.
C2 adjective /ˈfluːtɪd/

fluted

Meaning
having grooves or ridges, often for decoration
Example
The vase had a beautiful fluted design around the rim.
B1 adjective /faɪˈnænʃəl/

financial

Meaning
relating to money, banking, or finance
Example
He made a sound financial decision by investing wisely.
C1 noun /ˈfɔːls.hʊd/

Falsehood

Meaning
the state of being untrue; a lie
Example
The politician was caught spreading falsehoods about his opponent.
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.
B1 noun /ˈfeɪvər/

favor

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

foyer

Meaning
An entrance hall or lobby in a building.
Example
The guests waited in the hotel foyer before checking in.
B2 adjective /ˈfruːt.fəl/

Fruitful

Meaning
productive; beneficial; successful;
Example
Our discussion was very fruitful and led to many new ideas.
C1 noun, verb /ˈfɜːrloʊ/

furlough

Meaning
temporary leave of absence from work, especially that granted to an employee or soldier
Example
Many workers were placed on furlough during the crisis.
B1 verb /floʊt/

float

Meaning
to rest or move on the surface of a liquid or in the air without sinking
Example
The boat began to float gently down the river.
B2 verb ˈfaɪ.nəl.aɪz

finalize

Meaning
To complete arrangements for something; put into final form.
Example
The treaty was finalized after the discussions.
C1 noun/adjective /fɔːrˈboʊdɪŋ/

foreboding

Meaning
A feeling that something bad will happen; ominous.
Example
She felt a deep sense of foreboding as she entered the abandoned house.
A2 noun fɔːrs

force

Meaning
A physical power or energy that can cause movement, change, or influence.
Example
Strong nuclear force binds particles.
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.
B1 adjective /ˈfrʌstreɪtɪd/

frustrated

Meaning
feeling annoyed or upset because of inability to achieve something
Example
She felt frustrated after failing the exam.
A2 noun /frʌnt/

front

Meaning
the forward-facing part of something
Example
The house has a garden in front.
B1 noun /ˈfʌŋkʃən/

function

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.
C1 noun /ˈfren.zi/

Frenzy

Meaning
a state or period of uncontrolled excitement or wild behavior; intense activity
Example
The announcement of the sale created a shopping frenzy at the mall.
B1 noun/verb /ˈfaɪtɪŋ/

fighting

Meaning
the act of engaging in a physical or verbal conflict
Example
The soldiers were fighting bravely on the battlefield.
C2 verb /fɪˈlɪsɪˌteɪt/

felicitate

Meaning
to congratulate; to express good wishes
Example
We felicitated the graduating students at the ceremony.
B1 noun /ˈflaʊər veɪs/

Flower-vase

Meaning
a decorative container used to hold cut flowers
Example
She placed beautiful roses in the flower vase on the table.
B2 verb /fraʊn/

frown

Meaning
to wrinkle one's brow in displeasure or concentration
Example
She frowned when she heard the bad news.
B2 adjective /ˈfʌŋkʃənl/

functional

Meaning
designed to be practical and useful, rather than just decorative
Example
The design of the chair is simple but highly functional.
C2 noun /floʊ/

floe

Meaning
a large sheet of floating ice
Example
The polar bears rested on the ice floe.
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 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.
B2 adjective /ˈflɔː.ləs/

Flawless

Meaning
perfect; without any defects or faults; immaculate
Example
Her flawless performance earned her a standing ovation.
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 adjective /ˈflæɡɪŋ/

flagging

Meaning
becoming tired, weaker, or less enthusiastic
Example
After hours of work, his energy was flagging.
C2 noun /fez/

Fez

Meaning
a cone-shaped red hat with a tassel, traditionally worn by men in some Middle Eastern countries
Example
The traditional costume included a red fez with a black tassel.
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.
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.
A2 noun /fɔːrk/

Fork

Meaning
a tool with two or more prongs used for eating or serving food
Example
Please use a fork to eat your salad.
C1 adjective /ˈfɛrəl/

feral

Meaning
existing in a wild or untamed state; not domesticated
Example
The feral cat roamed the streets at night.
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 noun /ˈfriːˌθɪŋkər/

freethinker

Meaning
A person who forms opinions based on reason and independent thought rather than tradition or authority.
Example
Voltaire was considered a great freethinker of his time.
B1 noun /ˌfɜːrst eɪd kɪt/

first aid kit

Meaning
A collection of medical supplies for giving initial treatment in emergencies
Example
I always keep a first aid kit in my car for emergencies.
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.
A2 noun /faɪl/

File

Meaning
a tool with a rough surface for smoothing or shaping hard materials; a collection of papers or data
Example
He used a metal file to smooth the rough edges.
C2 noun /ˈfɔːrˌpiːk/

forepeak

Meaning
The compartment in the forward part of a ship, often used for storage.
Example
The sailors stored extra ropes in the forepeak.
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.
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.
B1 verb /fərˈbɪd/

forbid

Meaning
to order someone not to do something
Example
The school forbids smoking on campus.
B2 adjective /ˈfæktʃuəl/

Factual

Meaning
based on facts; accurate; true
Example
The report contains only factual information.
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 verb /ˈflætər/

flatter

Meaning
to praise excessively or insincerely to gain favor
Example
He tried to flatter his boss to get a promotion.
C2 adjective /ˈfæsaɪl/

Facile

Meaning
easily achieved; superficial; lacking depth
Example
His facile explanation didn't address the real problem.
C2 noun /ˈflɛdʒlɪŋ/

fledgeling

Meaning
A young bird that has just developed its feathers and is learning to fly; a beginner.
Example
The fledgeling was trying hard to take its first flight.
C2 adjective /ˈfɛstəl/

festal

Meaning
relating to a festival or celebration
Example
The hall was decorated in a festal manner for the wedding.
C1 noun /faɪˈnælɪti/

finality

Meaning
the quality of being final or irreversible; a sense of conclusiveness
Example
The judge's decision gave the case a sense of finality.
C1 adjective /flæmˈbɔɪənt/

flamboyant

Meaning
showy, strikingly bold or colorful; confident and lively
Example
His flamboyant style drew everyone's attention at the party.
A2 noun /ˈflaɪ.ɪŋ ˈkriː.tʃər/

Flying creature

Meaning
any animal that has the ability to fly through the air
Example
Birds, bats, and insects are all examples of flying creatures.
B2 noun /ˈfɜː.tɪ.laɪ.zər/

fertilizer

Meaning
a substance added to soil to make plants grow more successfully
Example
Farmers use fertilizer to increase crop production.
B2 adjective /fɔːrˈsiːəbl/

foreseeable

Meaning
Able to be predicted or expected in advance
Example
The company is unlikely to make changes in the foreseeable future.
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 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.
C1 noun, verb /fɔːrd/

ford

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.
B2 adjective /ˈfjʊə.ri.əs/

Furious

Meaning
extremely angry; violent; fierce;
Example
She was furious when she discovered the mistake.
B1 adjective /ˈfɔːrmər/

former

Meaning
Having been previously in a particular role or position.
Example
He is a former president of the association.
C1 noun /fruːˈɡæl.ə.ti/

frugality

Meaning
The quality of being economical in use or expenditure; not wasteful.
Example
Frugality is essential for saving money effectively.
A1 adjective /ˈfʌn.i/

Funny

Meaning
humorous; strange; amusing;
Example
He told a funny joke that made everyone laugh.
B1 noun /ˈfaɪn.dɪŋ/

finding

Meaning
a discovery, conclusion, or result reached after investigation
Example
The scientist published her findings in a leading journal.
C2 verb /fɔɪst/

foist

Meaning
To impose something unwelcome or unnecessary on someone.
Example
He tried to foist his old books onto his friends.
A2 noun/verb /fɛns/

fence

Meaning
a barrier, usually made of wood or wire, that surrounds an area; to enclose with a barrier
Example
They built a fence around the garden.
C2 verb /feɪz/

faze

Meaning
to disturb or disconcert someone; to cause to feel unsettled
Example
She was not fazed by the unexpected question.
A2 noun /ˈfrɛndʃɪp/

friendship

Meaning
A close and trusting relationship between two or more people.
Example
Their friendship has lasted since childhood.
A1 noun/verb /fɪlm/

film

Meaning
a motion picture or movie; or to record on camera
Example
They watched a film together on the weekend.
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.