flu
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A2 noun /fluː/

flu

Meaning
a contagious viral illness causing fever, aches, and respiratory symptoms; influenza
Example
She stayed home because she had the flu.
C2 adjective /ˈflæs.ɪd/

Flaccid

Meaning
soft and limp; lacking firmness; drooping
Example
The plant's leaves became flaccid after days without water.
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 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 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.
C2 noun /ˈfɔːrˌnɑːlɪdʒ/

foreknowledge

Meaning
Awareness of something before it happens or exists.
Example
The prophet claimed to have foreknowledge of the event.
C2 adjective /ˈfrɒlɪksəm/

Frolicsome

Meaning
joyful; playful; merry; cheerful
Example
The frolicsome children laughed and played in the park.
C1 verb /ˈflɪk.ər/

flicker

Meaning
to shine unsteadily or waver between light and dark
Example
The candle flickered in the wind.
C2 verb /ˈfrɪtər/

fritter

Meaning
To waste time, money, or energy on trivial matters.
Example
He frittered away his savings on unnecessary gadgets.
B2 noun /ˈfrʌn.tɪər/

frontier

Meaning
A new area of activity, knowledge, or development; the edge of knowledge or achievement.
Example
Robotic surgery is exploring a new frontier in medicine.
B2 verb /ˈflætər/

flatter

Meaning
to praise excessively or insincerely to gain favor
Example
He tried to flatter his boss to get a promotion.
B2 noun /ˈfɪŋ.ɡər.prɪnt/

Fingerprint

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.
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.
C1 verb, noun /ˈflʌstər/

fluster

Meaning
to make someone agitated or confused
Example
The unexpected question flustered him.
B2 adjective /ˈfɛmənɪn/

feminine

Meaning
having qualities traditionally associated with women; feminine in nature
Example
She has a very feminine style of dressing.
C2 noun /ˈflæt.ər.ər/

Flatterer

Meaning
a person who lavishes praise, often insincerely and in order to gain advantage
Example
The king was surrounded by flatterers who only told him what he wanted to hear.
C2 noun /ˌfoʊ.mənˈteɪ.ʃən/

fomentation

Meaning
The action of instigating or stirring up; also the application of warm substances to the body to ease pain.
Example
His speech led to the fomentation of violence in the region.
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 verb /ˈfɛri/

ferry

Meaning
to transport by boat; to carry back and forth
Example
The boat ferried passengers across the river.
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.
A2 noun /ˈfɔːrɪst/

Forest

Meaning
a large area covered chiefly with trees and undergrowth
Example
We went hiking in the dense forest yesterday.
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.
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.
A1 number /ˈfɔːrti/

forty

Meaning
the number 40; ten times four
Example
She celebrated her forty years of life with a big party.
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.
A2 adverb /fɔːrˈɛvər/

forever

Meaning
For all future time; for always.
Example
She promised to love him forever.
C2 verb /frɪz/

frizz

Meaning
to form into small, tight curls or cause hair to become fuzzy and tangled
Example
The humid weather caused her hair to frizz.
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.
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 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 /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 /ˈfɔɪeɪr/

foyer

Meaning
An entrance hall or lobby in a building.
Example
The guests waited in the hotel foyer before checking in.
A1 noun ˈflaʊərz

Flowers

Meaning
The reproductive structures of plants that provide nectar for butterflies.
Example
Butterflies are attracted to colorful flowers.
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.
A1 adjective /frɛntʃ/

french

Meaning
Relating to France, its people, or their language.
Example
We enjoyed delicious French cuisine on our trip to Paris.
C2 verb /fɔːrˈfɛnd/

forfend

Meaning
to protect or defend against something undesirable; to prevent
Example
May good fortune forfend any danger from our journey.
B1 noun /ˈfaɪ.tər/

Fighter

Meaning
a military aircraft designed for attacking other aircraft; a person who fights
Example
The fighter jet flew overhead during the military parade.
A1 noun /ˈfraɪ.deɪ/

friday

Meaning
the day of the week following Thursday and preceding Saturday
Example
We have a team meeting every Friday afternoon.
C2 noun /ˈfiːəlti/

fealty

Meaning
loyalty or allegiance, especially to a sovereign or lord
Example
The knight swore fealty to his king.
A1 adjective/verb/adverb /friː/

free

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.
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.
B2 noun /ˈfækəlti/

faculty

Meaning
an inherent mental or physical ability; a division of a university
Example
She has a remarkable faculty for languages.
A2 noun /ˈfɑː.mɪŋ/

farming

Meaning
the activity or business of growing crops and raising animals for food or other products
Example
Farming requires both hard work and knowledge about the land.
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.
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.
C2 noun /fɔːrˈbɛrəns/

forbearance

Meaning
Patient self-control; restraint and tolerance, especially in difficult situations.
Example
She showed remarkable forbearance during the heated argument.
A1 noun /ˈfʊtˌbɔːl/

football

Meaning
A team sport played with a ball that is kicked or carried to score points.
Example
They watched a football match on TV.
B2 noun /ˈfɔːr.hed/

Forehead

Meaning
the part of the face above the eyebrows and below the hairline
Example
He wiped the sweat from his forehead.
B2 noun /ˈfreɪ.ɡrəns/

Fragrance

Meaning
a pleasant, sweet smell; a perfume or cologne
Example
The fragrance of jasmine flowers filled the entire garden in the evening.
C2 noun /fiːˈkʌndɪti/

fecundity

Meaning
the ability to produce an abundance of offspring or new growth; fertility
Example
The fecundity of the river delta supports diverse wildlife.
C1 noun /ˈflɔː.rə/

flora

Meaning
The plant life found in a particular region or habitat.
Example
The Amazon rainforest is home to a vast flora diversity.
B1 adverb /ˈfɜːrstli/

firstly

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.
C1 noun /fɪˈnænʃɪər/

financier

Meaning
a person who manages large amounts of money or investments
Example
The financier advised the company on its investments.
B1 noun /ˈfes.tə.vəl/

Festival

Meaning
a day or period of celebration, typically for religious reasons; an organized series of concerts, films, etc.
Example
The music festival attracted thousands of visitors from around the world.
C1 noun /ˈflæt.ər.i/

Flattery

Meaning
excessive and insincere praise, given especially to further one's own interests
Example
His constant flattery made everyone suspicious of his true motives.
C2 verb /ˈfjuːmɪˌɡeɪt/

fumigate

Meaning
to disinfect or purify an area by using chemical fumes
Example
They fumigated the warehouse to kill the insects.
A2 noun /ˈfoʊldər/

folder

Meaning
a container or directory used to store and organize papers or digital files
Example
I saved all the photos in a separate folder.
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.
A2 verb /fraɪ/

fry

Meaning
to cook food in hot oil or fat
Example
She fries eggs for breakfast every morning.
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.
C2 adjective /ˈfɛtɪd/

fetid

Meaning
having a strong, unpleasant smell
Example
The fetid smell from the garbage was unbearable.
C1 adjective fæsˈtɪd.i.əs

fastidious

Meaning
Very attentive to and concerned about accuracy and detail.
Example
She is fastidious about maintaining cleanliness.
A2 noun /fɑːrm/

farm

Meaning
an area of land used for growing crops and raising animals
Example
They live on a farm with many animals.
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.
C1 adjective /fəˈnætɪk/

Fanatic

Meaning
extremely passionate about something; showing excessive enthusiasm or devotion
Example
He is a fanatic supporter of his football team.
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.
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 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.
B2 adjective /ˈfeɪtl/

fatal

Meaning
causing death; leading to disaster
Example
The accident proved fatal for the driver.
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.
A2 noun /fæn/

Fan

Meaning
a person who has a strong interest in or admiration for a particular person or thing; a device for creating air current
Example
She is a huge fan of classical music and attends every concert in the city.
B1 noun /feɪm/

Fame

Meaning
the condition of being known or talked about by many people
Example
The young actor achieved international fame with his latest movie.
C1 noun /fɔːn/

Fawn

Meaning
a young deer; a light yellowish-brown color
Example
The mother deer protects her fawn from predators.
B2 noun /fɜːr/

Fur

Meaning
thick hair covering the body of animals
Example
The cat's fur was soft and warm to touch.
C2 adjective /ˈfiːtɪd/

foetid

Meaning
having an offensive, unpleasant smell
Example
The foetid smell from the garbage made it hard to breathe.
B2 noun /flɛkˈsɪbɪləti/

flexibility

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.
B2 verb /ˈfɜːrnɪʃ/

furnish

Meaning
to provide or supply with furniture or equipment
Example
They furnished the new house with modern furniture.
B1 noun /ˈfeɪvər/

favor

Meaning
An act of kindness or approval.
Example
She asked him for a small favor.
B2 noun /feɪt/

Fate

Meaning
the development of events beyond a person's control, regarded as determined by a supernatural power
Example
Many people believe that fate determines the course of their lives.
A2 noun ˈfriː.dəm

freedom

Meaning
The power or right to act, speak, or think as one wants without hindrance or restraint.
Example
Freedom empowers self-expression.
A2 determiner/adjective /ˈfjuːər/

fewer

Meaning
a smaller number of; not as many
Example
Fewer people attended the meeting than expected.
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 /ˈflɒtsəm/

flotsam

Meaning
Floating debris from a shipwreck or things discarded and left floating.
Example
The beach was littered with flotsam after the storm.
A2 noun/verb /ˈfɪʃɪŋ/

fishing

Meaning
the activity of catching fish
Example
Fishing is a popular activity in coastal villages.
C1 adjective /freɪl/

frail

Meaning
Physically weak and delicate.
Example
The old man was too frail to walk without help.
A1 verb /ˈfɪnɪʃ/

finish

Meaning
to complete or bring to an end; to reach the final point
Example
She finished her homework before dinner.
C1 noun ˈfæl.ə.si

fallacy

Meaning
False belief, misconception, false reasoning.
Example
The idea that success comes easy is a fallacy.
B1 verb /fel/

fell

Meaning
to cut down a tree; to cause to fall; to strike down
Example
The lumberjacks felled several trees in the forest today.
B2 verb /ˈflʌrɪʃ/

flourish

Meaning
To grow or develop in a healthy or successful way.
Example
Her business began to flourish after she introduced online sales.
B1 adjective /ˈfɒɡi/

foggy

Meaning
Full of or covered with fog; unclear or hazy.
Example
The mountain road was dangerous on the foggy morning.
C1 adjective /ˈfeɪl.seɪf/

fail-safe

Meaning
designed to prevent failure or accidents; guaranteed to work correctly
Example
The engineers installed a fail-safe mechanism in the nuclear plant.
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 verb /ˈflaʊndər/

flounder

Meaning
To struggle or stagger clumsily; to experience difficulty or confusion.
Example
He floundered in the interview when asked difficult questions.
A1 adjective /fɑːst/

Fast

Meaning
moving or happening quickly; rapid; swift
Example
She runs very fast in the morning.
A2 noun, verb /fɔːrm/

form

Meaning
the shape or structure of something; to bring something into existence
Example
Students filled out the registration form.
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.
B2 adjective /ˈfɔːrtʃənət/

fortunate

Meaning
Having good luck or receiving something desirable by chance.
Example
She was fortunate to escape the accident without injuries.
B2 adverb /fɔːrθ/

forth

Meaning
forward in place, time, or order
Example
The leader stepped forth to address the crowd.
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 /ˈfreʃmən/

freshman

Meaning
a first-year student at a high school, college, or university
Example
The freshman felt nervous on his first day at university.
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 /ˈfrɒθi/

frothy

Meaning
Full of or covered with small bubbles; light and insubstantial.
Example
She ordered a cup of frothy cappuccino.
C2 adjective /ˈfrɪski/

Frisky

Meaning
lively; energetic; playful; mischievous
Example
The frisky puppy ran around the garden playfully.
B2 adjective /fəˈbɪd.ən/

Forbidden

Meaning
not allowed; prohibited; banned
Example
Smoking is strictly forbidden in this building.
C2 noun /ˈfuːləri/

foolery

Meaning
Silly or foolish behavior or actions.
Example
His constant foolery made the meeting hard to take seriously.
B2 adjective /fɪərs/

Fierce

Meaning
violent; aggressive; showing strong feeling or determination
Example
The fierce storm destroyed many houses in the village.
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 /fəˈnætɪkəl/

fanatical

Meaning
showing extreme enthusiasm or obsession
Example
She has a fanatical interest in collecting vintage stamps.
C1 adjective /ˈfrɔːdjʊlənt/

fraudulent

Meaning
Involving or using deceit, especially criminal deception.
Example
He was arrested for making fraudulent insurance claims.
C1 verb /flɑp/

flop

Meaning
to fall or move heavily and clumsily; to fail completely
Example
The new movie flopped at the box office.
C2 adjective /ˈflɒrɪd/

florid

Meaning
Having a red or flushed complexion; or excessively ornate and intricate.
Example
The speaker’s florid style made the lecture hard to follow.
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.
C2 adjective /ˈflʌməksd/

flummoxed

Meaning
Completely confused or bewildered.
Example
He looked flummoxed after hearing the strange question.
A1 preposition /fɔːr/

for

Meaning
used to indicate purpose, destination, or recipient
Example
This gift is for you.
C2 noun /ˌfrɪdʒɪˈdɛːriəm/

frigidarium

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.
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.
B2 verb /flɪp/

flip

Meaning
to turn over quickly or suddenly; to toss lightly
Example
She flipped the pancake in the pan.
B1 noun /feɪk/

Fake

Meaning
a thing that is not genuine; a forgery or sham
Example
The painting was discovered to be a fake worth very little money.
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 /ˈfɪks.tʃər/

fixture

Meaning
a permanent or fixed object, often in a house or building
Example
The bathroom fixture was installed yesterday.
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.