observance
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C1 noun /əbˈzɜːvəns/

observance

Meaning
The practice of following a custom, rule, or religious law.
Example
The festival is held in observance of a centuries-old tradition.
B2 noun /ˈfoʊ.bi.ə/

Phobia

Meaning
an extreme or irrational fear of or aversion to something
Example
She has a phobia of spiders.
B2 adjective /ˈstɪki/

sticky

Meaning
having the quality of adhering or clinging; difficult to remove or deal with
Example
The candy is too sticky to eat with your hands.
C2 noun /dʒeɪp/

jape

Meaning
A practical joke or humorous remark.
Example
He enjoyed a harmless jape with his friends.
C1 adjective /ˈkrɪm.zən/

Crimson

Meaning
a deep purplish-red color
Example
The crimson sunset painted the sky with beautiful shades.
C2 verb /dɪˈtruːd/

detrude

Meaning
To thrust or force something downward or outward.
Example
The violent waves detruded rocks from the cliff.
C1 noun ˌɛkstərˈnælɪtiz

externalities

Meaning
A side effect or consequence of an industrial or commercial activity.
Example
Pollution is a negative externality of industrialization.
B2 noun ˌkɒn.ekˈtɪv.ɪ.ti

connectivity

Meaning
The state of being connected or interconnected; the capacity for the interconnection of platforms, systems, and applications.
Example
Improved connectivity boosts economic development.
A2 noun /smɔːl boʊl/

Small bowl

Meaning
a round, shallow container of small size used for serving food or liquids
Example
She served the soup in a small bowl.
C1 verb /reɪv/

rave

Meaning
to speak or write about something with great enthusiasm or admiration
Example
Critics rave about the new movie.
A2 verb /noʊt/

note

Meaning
to write down or observe something; to pay attention to
Example
Please note the important points during the lecture.
B1 noun /ˈkɒnflɪkt/

conflict

Meaning
A serious disagreement or argument, often a prolonged one.
Example
The two countries are trying to resolve the conflict through negotiations.
C1 noun /fɪˈziːk/

physique

Meaning
the form, size, and development of a person's body
Example
He has an athletic physique due to years of training.
C1 noun /ˈmenəs/

Menace

Meaning
A person or thing that is likely to cause harm; a threat
Example
The reckless driver was a menace to everyone on the road.
C1 noun, verb /ˈmæn.deɪt/

mandate

Meaning
an official order or command; to give someone authority to act in a certain way
Example
The government issued a mandate to reduce carbon emissions.
C2 noun /ˈmaɪkrəˌkɒzəm/

microcosm

Meaning
A small, representative system having analogies to a larger system; a miniature version of something.
Example
The small town is a microcosm of the entire nation.
B1 noun /ˈprɛɡnənsi/

pregnancy

Meaning
the condition of being pregnant; the period during which a woman carries a developing fetus
Example
Her pregnancy was carefully monitored by her doctor.
C2 adjective /ˈlɪmpɪd/

limpid

Meaning
Clear and transparent, easily understood.
Example
The limpid water of the lake reflected the sky perfectly.
C1 verb /daɪˈɡrɛs/

digress

Meaning
To leave the main subject temporarily in speech or writing.
Example
The professor began to digress from the main topic of the lecture.
C2 noun /əˈdjuː/

adieu

Meaning
A farewell or goodbye, often used in a formal or poetic sense.
Example
She bid her friends adieu before leaving for France.
B2 noun /rɛlm/

realm

Meaning
A kingdom or domain; a field or area of activity or interest.
Example
He is well known in the realm of science.
A2 noun /wɔːr/

War

Meaning
a state of armed conflict between different countries or different groups within a country
Example
The war lasted for five years and caused great destruction.
C1 adjective /ˈspaɪn.ləs/

Spineless

Meaning
lacking courage or determination; weak-willed
Example
He was too spineless to stand up for his beliefs.
B2 verb /reɪl/

rail

Meaning
to complain or protest strongly about something
Example
He railed against the unfair decision.
C1 noun /lɪŋˈɡwɪstɪks/

linguistics

Meaning
The scientific study of language and its structure.
Example
She decided to major in linguistics at university.
B2 noun ট্রপিক্যাল রিজিওনস

tropical regions

Meaning
Areas of the Earth near the equator characterized by warm temperatures.
Example
Bangladesh is located in tropical regions.
C1 noun /ˈtʃæplɪn/

chaplain

Meaning
A member of the clergy attached to a private chapel, institution, hospital, or military unit.
Example
The army chaplain offered prayers before the battle.
C2 verb /bɪˈdræɡəl/

bedraggle

Meaning
to make something wet, dirty, and untidy by dragging it through mud or water
Example
The children came home bedraggled after playing in the rain.
B1 adjective /ˌen.təˈteɪ.nɪŋ/

Entertaining

Meaning
providing amusement or enjoyment; funny and engaging
Example
The comedian's performance was very entertaining and kept the audience laughing.
C1 noun sɪˈmɛntɪd ɡreɪv

cemented grave

Meaning
A grave that is constructed with cement for permanence.
Example
The cemented grave of the martyrs was seen near the river.
B2 adjective /ɪnˈtɛnsɪv/

intensive

Meaning
Involving a lot of effort, energy, or concentration in a short period of time.
Example
She attended an intensive English course before moving abroad.
B2 verb/noun /ˌdɪsrɪˈɡɑːrd/

disregard

Meaning
To ignore something; lack of consideration or respect for something.
Example
He disregarded the warning signs and kept driving.
C2 verb /ˈɛksplɪkeɪt/

explicate

Meaning
to make an idea or principle clear by explaining it in detail
Example
The professor tried to explicate the theory of relativity for his students.
B1 adjective /ˈæbsənt/

absent

Meaning
not present at a place or event
Example
She was absent from the meeting yesterday.
C2 noun kwɔːrk

quark

Meaning
A fundamental subatomic particle that combines to form protons and neutrons.
Example
Quarks form protons and neutrons.
A2 noun kɒsts

Costs

Meaning
An amount that has to be paid or spent to buy or obtain something.
Example
Reducing costs improves profit margins.
B1 verb ɪnˈvɛst

invest

Meaning
To put money, effort, time, etc. into something to make a profit or get an advantage.
Example
Investing in intellectual property can generate passive income.
B2 adjective /ˌɪnkəmˈpliːt/

incomplete

Meaning
Not finished, lacking some parts or not whole.
Example
Her report was incomplete and needed further details.
B2 adjective, adverb /ˈlɒŋ taɪm/

long-time

Meaning
lasting or existing for a long period of time; having continued for many years
Example
She is a long-time friend of my family.
C2 adjective, noun /ˈænθrəpɔɪd/

anthropoid

Meaning
Resembling a human being in form; a primate such as apes and monkeys.
Example
The gorilla is considered an anthropoid ape.
B1 adjective /ˈteknɪkəl/

Technical

Meaning
relating to or involving special skills or knowledge; requiring specialized training
Example
The manual contains technical instructions for operating the machine.
B2 noun /foʊm/

Foam

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.
C1 adjective /dræb/

drab

Meaning
Dull, lacking brightness or interest; monotonous.
Example
The room looked drab with its gray walls and dim lighting.
B2 noun /ˈbærəl/

barrel

Meaning
a large cylindrical container used to hold liquids
Example
The wine was stored in a wooden barrel.
C1 noun /ˈpɒlɪɡɒn/

polygon

Meaning
a flat shape with three or more straight sides
Example
The artist drew a colorful polygon on the canvas.
C1 noun /kwɪnˈtɛt/

quintet

Meaning
A group of five people or things, especially musicians.
Example
The jazz quintet performed beautifully.
C1 noun speɪst ˌrep.ɪˈtɪʃ.ən

spaced repetition

Meaning
A learning technique that involves reviewing information at increasing intervals to improve long-term retention.
Example
Spaced repetition helps in long-term memory retention.
C1 adjective /ˌɑːpərˈtuːn/

opportune

Meaning
Happening at a suitable or convenient time.
Example
She arrived at an opportune moment to help.
A2 noun /flaɪt/

flight

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.
A2 noun, verb /raʊ/ (argument), /roʊ/ (line of things)

row

Meaning
A line of things or people; also, a noisy quarrel; to propel a boat with oars.
Example
They had a loud row about money.
C1 noun /ˌjuːθəˈneɪʒə/

euthanasia

Meaning
The practice of intentionally ending a life to relieve pain and suffering.
Example
The debate about euthanasia raises difficult ethical questions.
C1 noun /luːm/

Loom

Meaning
a machine for weaving cloth; to appear threatening or menacing
Example
The weaver worked at the loom to create beautiful fabrics.
C1 noun /ˈlɪɡ.əmənt/

ligament

Meaning
A tough band of tissue that connects bones at a joint.
Example
He tore a ligament in his knee while playing football.
C2 noun /ˌmɛtəmˌsaɪˈkoʊsɪs/

metempsychosis

Meaning
The supposed transmigration of the soul, especially its reincarnation after death.
Example
Ancient philosophers often debated the idea of metempsychosis.
C1 adjective /suːˈpɜːr.flu.əs/

superfluous

Meaning
Unnecessary, especially through being more than enough.
Example
His speech contained too many superfluous details.
C1 noun /ˈstɪmjʊlənt/

stimulant

Meaning
A substance that raises levels of physiological or nervous activity in the body.
Example
Coffee is a common stimulant that helps people stay awake.
C1 noun /ˈtjuːmʌlt/

tumult

Meaning
A loud, confused noise, especially caused by a crowd; commotion or disorder.
Example
The protest created a tumult in the city square.
C1 noun /ˈsuːdənɪm/

pseudonym

Meaning
a fictitious name used by an author instead of their real name
Example
Mark Twain was the pseudonym of Samuel Clemens.
C2 noun /trəˈveɪl/

travail

Meaning
Painful or laborious effort; suffering or hardship.
Example
After years of travail, she finally completed her degree.
C1 noun /ˈsɒlstɪs/

solstice

Meaning
the two times in the year when the sun is at its greatest distance from the equator (summer and winter solstice)
Example
People celebrate the summer solstice with festivals and rituals.
C2 noun /ˈsɛrəf/

seraph

Meaning
An angelic being associated with light and purity, often depicted as a high-ranking angel in Christian theology.
Example
The stained-glass window depicted a seraph with outstretched wings.
C1 adjective /ˈəʊnərəs/

onerous

Meaning
involving a great deal of effort, difficulty, or burden
Example
Fulfilling the contract proved to be an onerous task for the company.
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.
C2 adjective /ˈbɪz.ən.taɪn/ or /ˈbaɪ.zənˌtiːn/

byzantine

Meaning
Extremely complicated and detailed; relating to the Byzantine Empire or its style.
Example
The new tax regulations are so byzantine that few understand them.
B1 adjective /ˈiː.ɡər/

Eager

Meaning
showing keen interest; enthusiastic; having or showing desire and excitement
Example
She was eager to start her new job.
B2 noun /əkˌseləˈreɪʃən/

acceleration

Meaning
the rate at which velocity changes over time; the act of speeding up
Example
The car showed rapid acceleration as it entered the highway.
A1 verb /tel/

tell

Meaning
to say something to someone; to give information or instructions
Example
Can you tell me the time?
B2 noun /ˈsnoʊ.fɔːl/

Snowfall

Meaning
the process of snow falling from the sky; the amount of snow that falls
Example
The heavy snowfall blocked all the roads yesterday.
A2 adjective /ˈɔːfəl/

awful

Meaning
very bad or unpleasant
Example
The weather was awful during our trip.
B2 noun /ˈproʊtəˌtaɪp/

prototype

Meaning
The first model or version of something, used as a sample for testing or improvement.
Example
The company built a prototype of the new smartphone before mass production.
C1 noun /ˈæbsɛs/

abscess

Meaning
A swollen area within body tissue containing pus, usually caused by infection.
Example
The dentist treated the abscess in his tooth.
C1 noun /prɪˈrɒɡətɪv/

prerogative

Meaning
a special right or privilege exclusive to a particular person or group
Example
It is the manager’s prerogative to make the final decision.
A2 noun /mæp/

map

Meaning
a drawing that shows the features of an area of land or sea
Example
He studied the map before starting his journey.
C1 adjective /dɪˈvɔɪd/

devoid

Meaning
Completely lacking or without something.
Example
His speech was devoid of any real emotion.
C1 verb /prəˈlɪf.ə.reɪt/

proliferate

Meaning
To increase rapidly in numbers; to grow or spread quickly and extensively.
Example
Startups tend to proliferate in a thriving economy.
C1 verb /ˈlɪbəreɪt/

liberate

Meaning
to set free from imprisonment, oppression, or restraint
Example
The army liberated the city from enemy control.
A1 verb /rɪˈmembə/

remember

Meaning
to bring a past event back into one's mind; to keep in memory
Example
I remember my first day at school.
C2 noun /daɪˈɡrɛʃən/

digression

Meaning
A temporary departure from the main subject in speech or writing.
Example
Her story was full of interesting digressions.
C1 noun /ˈdʒiː.nəs/

genus

Meaning
a category in biological classification ranking above species and below family
Example
The tiger belongs to the genus Panthera.
C1 noun /ˈloʊ.fər/

Loafer

Meaning
a person who avoids work or effort; an idler
Example
Don't be a loafer, help us with the work.
C1 verb /ˈbɒɡəl/

boggle

Meaning
to overwhelm or confuse; to be astonished or puzzled by something
Example
The complexity of the puzzle boggled his mind.
C2 noun /bɪsk/

bisque

Meaning
A rich, creamy soup made from shellfish.
Example
We ordered lobster bisque at the restaurant.
C1 noun /ˈdel.ɪ.kə.si/

Delicacy

Meaning
fineness of texture or structure; a choice or expensive food; sensitivity in handling
Example
The chef prepared a local delicacy that was famous throughout the region.
C1 noun /rɪˈmɛmbrəns/

remembrance

Meaning
the act of remembering or honoring someone or something
Example
A service was held in remembrance of the fallen soldiers.
C2 verb /ˈbeɪɪŋ/

baying

Meaning
making a loud, prolonged barking or howling sound, especially of dogs
Example
The baying of the hounds echoed through the forest.
B1 verb /ɪmˈplɔɪ/

employ

Meaning
to hire someone to do a job; to use something effectively
Example
The company plans to employ more engineers next year.
A2 noun /ˈdrɔːər/

drawer

Meaning
a box-shaped storage compartment that slides in and out of furniture
Example
She kept her jewelry in the top drawer of the dresser.
B1 noun /ɪnˈɡriːdiənt/

ingredient

Meaning
A component part or element of something, especially in a recipe.
Example
Flour is a key ingredient in baking bread.
B2 noun /ˈrem.ə.di/

Remedy

Meaning
a medicine or treatment for a disease; a solution to a problem
Example
This herbal remedy helps with headaches.
C1 noun /ˈdʒʌɡ.lər/

Juggler

Meaning
a person who skillfully throws and catches objects as entertainment
Example
The juggler entertained the crowd with his amazing ball tricks.
C1 verb /ɪˈlæps/

elapse

Meaning
to pass or go by, usually referring to time
Example
Several hours elapsed before he finally returned home.
C1 adjective /ˈtɜːrnkiː/

turnkey

Meaning
ready for immediate use; a complete product or solution
Example
The company provides turnkey solutions for small businesses.
C2 verb /ˈhɛnˌpɛk/

henpeck

Meaning
To continually criticize, nag, or dominate (especially a husband).
Example
He felt henpecked by his overly controlling wife.
C1 adjective /ˈpʌlməˌneri/

pulmonary

Meaning
relating to the lungs
Example
The patient suffered from a serious pulmonary infection.
B1 noun /ˈkɪlər/

killer

Meaning
A person or thing that kills.
Example
The police caught the killer last night.
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 adjective /raɪf/

rife

Meaning
widespread or common, often in a negative sense
Example
Corruption was rife in the old government system.
B2 noun, verb /steɪk/

stake

Meaning
A share or interest in a business or venture; to risk or support something of value.
Example
He has a major stake in the new company.
C2 noun /ˈʌndərlɪŋ/

underling

Meaning
a person of low rank or importance; a subordinate
Example
The manager ordered his underlings to finish the task quickly.
B2 adverb /ˈəʊvəli/

overly

Meaning
to an excessive degree or extent
Example
She was overly concerned about the results.
C2 adverb /əˈsʌndər/

asunder

Meaning
into separate parts; apart
Example
The ancient empire was torn asunder by war.
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 noun /ˈlɑːrsəni/

larceny

Meaning
The unlawful taking of personal property with intent to deprive the rightful owner of it.
Example
He was arrested for committing larceny at the store.
C1 verb /ˈlaɪ.kən/

liken

Meaning
to compare one thing to another, often in a figurative way
Example
He likened her voice to sweet music.
B2 noun /ˈsɜːdʒən/

surgeon

Meaning
a doctor who performs medical operations
Example
The surgeon performed a complex heart operation.
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.
B2 adjective /ˈsɪvɪk/

civic

Meaning
relating to a city, town, or the duties of its citizens
Example
The mayor encouraged people to take part in civic activities.
C1 adjective /ˈlɔːf.ti/

Lofty

Meaning
of great height; noble in character; elevated in style
Example
He has lofty ideals about making the world a better place.
C2 verb /kɔːk/

caulk

Meaning
to seal a crack or gap with a waterproof filler
Example
He caulked the window frames to stop the draft.
C2 verb /ˌæd ˈlɪb/

ad-lib

Meaning
to speak or perform without preparation; to improvise
Example
The comedian ad-libbed a joke when the microphone failed.
C2 verb /rɪˈkjʊə/

recure

Meaning
to cure again; to remedy a second time
Example
The doctor had to recure the wound after it reopened.
C2 noun /ˈɡlæsi fɪʃ/

Glassy fish

Meaning
a transparent freshwater fish with a glassy appearance, popular in aquariums
Example
The glassy fish is known for its transparent body and peaceful nature.
B2 noun /jʌŋ fɪʃ/

Young fish

Meaning
juvenile or small fish; fish that has not reached maturity
Example
Young fish need protection from predators.
B2 noun /ˌɡriːn ˈen.ə.dʒi/

green energy

Meaning
Energy derived from renewable sources that have minimal environmental impact.
Example
Green energy reduces environmental harm.
C1 adjective /rɪˈmiːdiəl/

Remedial

Meaning
intended as a remedy; corrective; providing a cure;
Example
The students need remedial classes to improve their math skills.
B1 noun /kɑːrt/

Cart

Meaning
a wheeled vehicle for carrying goods; a shopping cart
Example
The farmer loaded hay onto his cart.
B1 noun /ˌʌnɪmˈplɔɪmənt/

Unemployment

Meaning
the state of being unemployed; lack of paid work
Example
The unemployment rate has increased significantly this year.
A2 verb /ɪkˈspres/

express

Meaning
to show or make known a feeling, thought, or opinion
Example
She expressed her gratitude for the help she received.
C1 adjective /ɪnˈflæməbəl/

Inflammable

Meaning
easily set on fire; flammable; combustible
Example
The inflammable material caught fire quickly.
A1 verb /tɔːk/

talk

Meaning
to speak; to communicate by speaking; to discuss
Example
Let's talk about your future plans.
B1 noun ˈreɪn.fɒr.ɪst

rainforest

Meaning
A luxuriant, dense forest rich in biodiversity, found typically in tropical areas with consistently heavy rainfall.
Example
The Amazon rainforest is home to millions of species.