speculate
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B2 verb /ˈspɛkjʊˌleɪt/

speculate

Meaning
To form a theory or guess without firm evidence; to invest in stocks, property, etc. hoping for profit.
Example
Experts speculate that the company may expand into new markets.
B2 verb /ˌriːkriˈeɪt/

recreate

Meaning
to create or produce something again, especially a new version of something lost or destroyed
Example
The team recreated the lost dataset from backups.
C2 noun /spliːn/

spleen

Meaning
an organ in the body that produces lymphocytes and filters blood; also refers to bad temper or spite
Example
He vented his spleen on his coworkers after the meeting.
C1 verb /ˈprɒfər/

proffer

Meaning
to offer something for acceptance; to present
Example
She proffered her hand as a sign of friendship.
C2 noun /ˈɑːrkeɪˌɪzəm/

archaism

Meaning
a word, expression, or style of language that is no longer in everyday use
Example
The poem is full of archaisms that give it an old-fashioned flavor.
B2 adjective /rɪˈsɔːrsfəl/

resourceful

Meaning
Having the ability to find quick and clever ways to overcome difficulties.
Example
She is very resourceful when it comes to solving unexpected problems.
A2 adjective /ˈnɜː.vəs/

Nervous

Meaning
feeling anxious or worried; relating to the nerves; easily agitated
Example
She felt nervous before her job interview.
C2 adjective /veɪnˈɡlɔːriəs/

vainglorious

Meaning
Excessively proud of oneself or one’s achievements; boastful.
Example
The vainglorious leader boasted about his minor achievements.
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 noun /pəˈfjuː.mər.i/

perfumery

Meaning
the art, business, or products of making perfumes
Example
She works in a perfumery that creates luxury scents.
B1 noun rəʊlz

Roles

Meaning
A person's or thing's function in a particular situation.
Example
Defined roles improve team performance.
C2 noun /ˈhækəlz/

hackles

Meaning
the hairs on the back of an animal’s neck that rise when it is angry or alarmed; figuratively, feelings of anger or resentment
Example
His rude comment raised my hackles.
B1 adverb /ˈɡreɪtli/

greatly

Meaning
to a large extent or degree; very much
Example
She was greatly admired by her students.
B2 adjective, noun, verb /ˈæb.strækt/

abstract

Meaning
existing in thought or as an idea but not having physical or concrete existence; a summary of a text
Example
The artist is known for her abstract paintings.
B2 adjective /pəˈzes.ɪv/

Possessive

Meaning
showing a desire to own or control something; unwilling to share; jealously protective
Example
He is very possessive about his car.
A1 noun /ˈkʌn.tri/

country

Meaning
a nation with its own government and borders
Example
Bangladesh is a beautiful country with rich culture.
A2 adjective /draɪ/

Dry

Meaning
free from moisture or liquid; not wet; lacking interest or excitement
Example
The desert has very dry climate.
A2 noun /ˈdɪkʃəˌnɛri/

dictionary

Meaning
A reference book or electronic resource containing words, usually arranged alphabetically, with information about their meanings, pronunciations, etymologies, and usage.
Example
I looked up the word in the dictionary to understand its meaning.
C2 noun /ˈʌŋɡwənt/

unguent

Meaning
A soothing or healing ointment applied to the skin.
Example
The doctor applied an unguent to heal the burn.
B2 noun /ˈdʒuː.pɪ.tər/

Jupiter

Meaning
the largest planet in our solar system; the chief god of Roman mythology
Example
Jupiter is known for its massive size and distinctive red spot.
C2 adjective /ˈmeɪndʒi/

mangy

Meaning
in poor condition, shabby, dirty, or affected by mange
Example
The stray dog looked mangy and weak.
C1 noun /ˈsɪməli/

simile

Meaning
A figure of speech involving the comparison of one thing with another using 'like' or 'as'.
Example
She used a simile to describe her eyes as bright as stars.
C1 adjective ˈser.ɪ.brəl

cerebral

Meaning
Of the cerebrum of the brain.
Example
Cerebral functions regulate thoughts.
C1 noun dɛkˈstɛr.ɪ.ti

dexterity

Meaning
Skill in performing tasks, especially with the hands; mental skill or adroitness.
Example
His dexterity in playing the piano amazed the audience.
C2 adjective /ˌpɛrənˈθɛtɪkəl/

parenthetical

Meaning
Relating to or expressed in parentheses; a side remark or digression.
Example
He added a parenthetical comment during the lecture.
C2 noun /ˈsɛkstənt/

sextant

Meaning
a navigational instrument with a graduated arc of 60°, used to measure the angle between a celestial object and the horizon
Example
Using a sextant, the navigator fixed the ship’s position at noon.
C1 verb θwɔːt

thwart

Meaning
Prevent (someone) from accomplishing something; oppose successfully.
Example
His efforts to thwart the proposal were unsuccessful.
C2 noun /ˈpɒntɪf/

pontiff

Meaning
the pope or a high-ranking bishop in the Christian church
Example
The pontiff addressed the nation in a televised speech.
C2 adjective /ˈtrɛntʃənt/

trenchant

Meaning
expressed strongly, effectively, and clearly; sharp or cutting in style or expression
Example
Her trenchant criticism of the policy left no room for misunderstanding.
B1 noun /əˈsaɪnmənt/

assignment

Meaning
a task or piece of work given to someone as part of their duties
Example
The students completed their homework assignment on time.
C2 adjective /ˈpɑːrtəbl/

partible

Meaning
capable of being divided or separated
Example
The estate was partible among the heirs.
B2 noun /əˈpoʊ.nənt/

Opponent

Meaning
a person who disagrees with or resists a proposal or practice; someone who competes against another
Example
The chess player defeated his strongest opponent.
A1 noun /ˈkrɪsməs/

christmas

Meaning
an annual festival celebrating the birth of Jesus Christ, observed on December 25
Example
Families gather to celebrate Christmas with joy and love.
C1 verb /ˈdɛnɪˌɡreɪt/

denigrate

Meaning
to criticize unfairly; to belittle or disparage someone or something
Example
He was quick to denigrate the achievements of his colleagues.
B2 noun/verb ˈven.tʃər

venture

Meaning
A risky or daring journey or undertaking; a business enterprise involving considerable risk.
Example
His new venture into e-commerce proved successful.
C2 noun /ˈæntiruːm/

anteroom

Meaning
A small room leading to a main one, often used as a waiting area.
Example
The guests waited in the anteroom before being called inside.
C2 noun /ˈaɪdlər/

idler

Meaning
A person who avoids work or spends time lazily.
Example
He was known as an idler who wasted his days.
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 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.
A1 modal verb /kʊd/

could

Meaning
Used to indicate possibility, ability, or permission in the past or as a polite suggestion.
Example
He could swim when he was a child.
A2 adjective /ˈemp.ti/

Empty

Meaning
containing nothing; vacant; without contents
Example
The glass is empty and needs to be refilled.
A2 verb /kjʊər/

cure

Meaning
to make someone healthy again after an illness
Example
The new medicine cured her of the infection.
C1 adjective /ˈbreɪzən/

brazen

Meaning
Bold and without shame; shameless.
Example
She made a brazen attempt to lie in front of everyone.
B2 noun/verb /ræft/

raft

Meaning
A flat structure made of logs or planks tied together, used as a boat or floating platform; to travel or transport on such a structure.
Example
They built a raft to cross the river.
A1 verb /juːz/

use

Meaning
to employ something for a purpose; to take advantage of
Example
I use my computer for work and entertainment.
C1 verb /ɪmˈpɛər/

impair

Meaning
to weaken or damage something, especially a function or ability
Example
Smoking can impair your lung capacity.
B1 noun /ˈtʃæn.əl/

Channel

Meaning
a television or radio station; a passage for water or other liquids; a means of communication
Example
The news channel provided live coverage of the important event.
B2 noun /ˈɡɑːr.di.ən/

Guardian

Meaning
a defender, protector, or keeper; a person legally responsible for the care of someone unable to manage their own affairs
Example
After her parents died, her uncle became her legal guardian and took care of her.
A2 verb dɪˈvɛləp

develop

Meaning
To grow or bring to a more advanced or effective state; to start to exist, experience, or possess gradually.
Example
Develop a brand based on your passion and skills.
C2 noun /ˈkɒɡ.nɪ.zəns/

cognizance

Meaning
Awareness, knowledge, or understanding of something; conscious perception.
Example
The judge took cognizance of the new evidence.
B1 noun /əˌkɒm.əˈdeɪ.ʃənz/

accommodations

Meaning
Lodging; room and board; places to stay.
Example
The students had proper accommodations.
A2 adverb /bɪˈsaɪdz/

Besides

Meaning
in addition to; moreover; furthermore
Example
Besides being smart, he is also kind.
A2 noun/verb /ɡraʊnd/

ground

Meaning
the solid surface of the earth; to prohibit someone (often a child) from going out
Example
The children played on the ground near the house.
C2 noun /ˈɔːrɪndʒfɪn ˈleɪbiːoʊ/

Orangefin labeo

Meaning
a freshwater fish species native to South Asian rivers, commonly found in Bangladesh and India
Example
The orangefin labeo is an important food fish in Bangladesh.
C1 noun /ˈɪn.tə.lekt/

intellect

Meaning
The ability to think, reason, and understand objectively.
Example
Her intellect is admired by all her colleagues.
C2 noun /ˌɛpɪzəʊˈɒtɪk/

epizootic

Meaning
An outbreak of disease affecting many animals of one kind at the same time.
Example
The farmer feared an epizootic might wipe out his cattle.
C2 adjective /əˈvʌŋkjələr/

avuncular

Meaning
kind and friendly, like an uncle
Example
He had an avuncular manner that made everyone feel comfortable.
B2 verb /ɪkˈsploʊd/

explode

Meaning
to burst or shatter violently and noisily as a result of rapid combustion or pressure
Example
The bomb exploded in the middle of the street.
B2 noun /ˈɡwɑːvə/

Guava

Meaning
a tropical fruit with sweet pink or white flesh and small seeds
Example
I love eating fresh guava from the tree in our garden.
A1 noun /ˈsɪti/

city

Meaning
a large town or an urban area with its own government
Example
Dhaka is the largest city in Bangladesh.
C1 adjective /ˈɪnsələnt/

insolent

Meaning
showing a rude and arrogant lack of respect
Example
The insolent student refused to follow the teacher's instructions.
C1 noun /dɪˈmaɪz/

demise

Meaning
Death or end of something, especially the end of an institution or system.
Example
The sudden demise of the company shocked investors.
A2 noun /ˈmeɪkɪŋ/

making

Meaning
the process of producing or constructing something
Example
The making of the movie took over two years.
C2 noun /njuːˈmɪzmətɪst/

numismatist

Meaning
A person who studies or collects coins, paper currency, and medals.
Example
The numismatist displayed his rare coin collection at the exhibition.
B2 verb əˈkwaɪər

acquire

Meaning
To gain or obtain something, especially knowledge or skills, through effort or experience.
Example
Volunteers acquire new skills through their experiences.
B2 adjective /dɛns/

dense

Meaning
Closely compacted in substance; having parts crowded together.
Example
The forest was so dense that little sunlight reached the ground.
B2 verb /daɪ/

dye

Meaning
to change the color of something using a chemical substance
Example
She will dye her hair blonde tomorrow.
C1 adjective /ˈsek.j ə.l ər/

Secular

Meaning
not connected with religious or spiritual matters; worldly
Example
The country maintains a secular government that separates religion from politics.
C2 adjective /sɛnˈtrɪpɪtəl/

centripetal

Meaning
Moving or directed toward a center.
Example
Centripetal force keeps the planets in orbit around the sun.
C2 verb /leɪv/

lave

Meaning
To wash or bathe.
Example
She laved her face with cool water.
A2 adjective /ˈkruːəl/

cruel

Meaning
Willfully causing pain or suffering to others, or feeling no concern about it.
Example
It was cruel to make fun of the injured boy.
B2 noun oʊˈbiː.sə.t̬i

obesity

Meaning
The condition of being grossly fat or overweight.
Example
Obesity increases the risk of diabetes and heart disease.
C1 noun /ˈdɛljuːdʒ/

deluge

Meaning
A severe flood; an overwhelming quantity of something.
Example
The town was hit by a deluge of rain in just a few hours.
B1 noun /ˈtʃæptər/

chapter

Meaning
A main division of a book or a period in someone's life.
Example
I just finished the first chapter of the novel.
C2 adjective /dʒɛnˈtiːl/

genteel

Meaning
Polite, refined, or respectable, often in an affected or exaggerated way
Example
She spoke in a genteel manner that impressed the guests.
A2 noun /ˈzi.brə/

Zebra

Meaning
an African animal like a horse with black and white stripes
Example
The zebra ran across the African savanna with its herd.
B2 noun /ɪnˈspekʃən/

inspection

Meaning
a careful examination of something, especially to check that it is correct or safe
Example
The building passed the safety inspection last week.
C1 adjective /frəˈnɛtɪk/

frenetic

Meaning
Fast and energetic in a wild or uncontrolled way.
Example
The stock market experienced frenetic trading after the announcement.
C1 verb /ˈtræmpəl/

trample

Meaning
to tread heavily on something and cause damage or injury
Example
The crowd trampled the flowers in the park.
B2 noun /iːz/

Ease

Meaning
absence of difficulty or effort; comfort and relaxation
Example
After years of practice, she played the piano with great ease.
C2 noun /ˈdɪktəm/

dictum

Meaning
A formal pronouncement, authoritative statement, or maxim.
Example
The judge’s dictum clarified the principle of equality before the law.
B2 verb /ˈnæreɪt/

narrate

Meaning
To tell a story or describe events, often in detail.
Example
She will narrate the events of her journey to the audience.
C2 noun /ˌbaɪ.oʊ.rɪˌmiː.diˈeɪ.ʃən/

bioremediation

Meaning
The use of living organisms to neutralize or remove environmental contaminants.
Example
Bioremediation helps remove toxins from polluted soil.
B1 noun/verb /wuːnd/

wound

Meaning
an injury to the body or to harm someone
Example
He received a deep wound on his arm.
B2 verb /sɪp/

sip

Meaning
to drink in small quantities; to taste carefully
Example
She sipped her tea slowly while reading the newspaper.
C2 adjective /əˈpɒ.krɪ.fəl/

apocryphal

Meaning
Of doubtful authenticity, though widely circulated as true.
Example
The story about him saving the village is probably apocryphal.
B2 adjective + noun æmˈbɪʃəs ɪnˈdevər

ambitious endeavor

Meaning
A bold and determined attempt to achieve something challenging.
Example
Artemis is an ambitious endeavor in space exploration.
C1 adjective /ʌnˈvaɪəbl/

unviable

Meaning
Not capable of working successfully; not feasible or practical.
Example
The project was deemed unviable due to high costs.
C1 noun /ˈlɔː.meɪ.kər/

Lawmaker

Meaning
a person who writes and passes laws, especially a member of a legislative body
Example
The lawmakers voted on the new education bill.
C2 noun /dɪˈtraɪtəs/

detritus

Meaning
Waste or debris of any kind; fragments left from destruction or decay.
Example
The riverbank was covered with detritus after the flood.
C2 noun /ˌmælˈoʊdər/

malodor

Meaning
An unpleasant smell; bad odor.
Example
The garbage bin gave off a terrible malodor.
A2 verb (past tense / past participle) /əˈtræktɪd/

attracted

Meaning
felt interest or liking toward someone or something; was drawn by appeal or force
Example
She was attracted to the idea of studying abroad.
C1 noun /ˈbɪɡ.ət/

bigot

Meaning
A person who is intolerant toward those holding different opinions or beliefs.
Example
He was called a bigot for refusing to listen to others' views.
C2 noun /ˈmaʊntɪˌbæŋk/

mountebank

Meaning
A charlatan or trickster who deceives others, often for personal gain.
Example
The crowd was fooled by the mountebank’s false promises.
B2 noun /ɪnˈdjʊə.rəns/

endurance

Meaning
The fact or power of enduring an unpleasant or difficult process or situation without giving way.
Example
Running a marathon requires exceptional endurance.
C1 verb /wɪðˈhoʊld/

withhold

Meaning
to refuse to give or keep back something
Example
The company decided to withhold his bonus.
C2 adjective /ˌlɪlɪˈpjuːʃən/

lilliputian

Meaning
Extremely small or tiny; trivial or petty.
Example
The model village was filled with lilliputian houses.
C1 phrase ˌbaɪ.oʊ.daɪˈvɜː.sɪ.ti ˌprez.əˈveɪ.ʃən

biodiversity preservation

Meaning
The protection and conservation of the variety of life in all its forms, including different species, genetic diversity, and ecosystems.
Example
Biodiversity preservation is critical for ecological balance.
C2 noun /ɪnˌtɛl.ɪˈdʒɛntsi.ə/

intelligentsia

Meaning
The group of people engaged in intellectual and cultural pursuits in a society.
Example
The intelligentsia played a key role in shaping public opinion.
C2 noun /flɔːˈrɛsəns/

florescence

Meaning
The process, state, or period of flowering.
Example
The garden reached its peak florescence in spring.
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.
B1 adverb /ˈrʌfli/

Roughly

Meaning
approximately; in a harsh or violent way
Example
The project will take roughly three months to complete.
B2 adjective /bɪˈzɑːr/

bizarre

Meaning
very strange or unusual, especially so as to cause interest or amusement
Example
He told a bizarre story that no one could believe.
C2 verb /ˈkɒndʒʊɡeɪt/

conjugate

Meaning
to list the different forms of a verb according to tense, person, and number
Example
Students are asked to conjugate the verb 'to be'.
B2 verb /kənˈveɪ/

convey

Meaning
To communicate or make known; to transport or carry from one place to another.
Example
The teacher conveys the lesson clearly to students.
B1 noun /dʒʌdʒ/

Judge

Meaning
a public official appointed to decide cases in a law court; a person who decides the results of a competition
Example
The judge carefully reviewed all the evidence before making a decision.
C1 noun /aɪˈdiː.ə.lɪ.zəm/

Idealism

Meaning
the pursuit of high principles and noble goals; unrealistic pursuit of perfection
Example
His youthful idealism motivated him to join various social justice movements.
B1 noun /lenz/

lens

Meaning
a curved piece of glass or plastic that makes things look clearer or larger when you look through it
Example
He cleaned the camera lens before taking the picture.
B1 adjective /ˈmiː.nɪŋ.fəl/

Meaningful

Meaning
having significance; purposeful; important
Example
She found meaningful work helping others.
B2 adjective /ˈpreɪz.wɜː.ði/

Praiseworthy

Meaning
deserving praise; commendable; admirable
Example
Her charitable work is truly praiseworthy.
B1 noun /ɪnˌvɛs.tɪˈɡeɪ.ʃən/

investigation

Meaning
the process of inquiring into or examining something carefully to find the truth
Example
The investigation revealed new evidence about the fraud.
B2 noun /piːk/

Peak

Meaning
the highest point of a mountain or hill; the maximum level or intensity
Example
The climbers reached the peak of Mount Everest.
C2 noun /ˌviːələnsɛloʊ/

violoncello

Meaning
The full name of the cello, a large string instrument played with a bow and held between the knees.
Example
He practiced the violoncello for hours each day.
C1 noun /ˈhɪpnətɪzəm/

hypnotism

Meaning
The practice or act of inducing hypnosis.
Example
He studied hypnotism as part of his psychology degree.
C1 noun ˌmɪt.ɪˈɡeɪ.ʃən

mitigation

Meaning
The action of reducing the severity, seriousness, or painfulness of something.
Example
Mitigation of climate change requires collective effort.
C1 verb /doʊt/

dote

Meaning
to show excessive love or fondness for someone or something
Example
She tends to dote on her grandchildren.
B2 verb /swel/

swell

Meaning
to become larger, rounder, or thicker; to increase in size
Example
Her ankle began to swell after the injury.
B2 noun /ˈdɔː.weɪ/

doorway

Meaning
the space where a door opens into a room or building
Example
She stood in the doorway waiting for him to arrive.
C2 adjective /ˌpɒliˈæn.ɪ.ɪʃ/

pollyannaish

Meaning
overly or blindly optimistic
Example
Her pollyannaish attitude ignored the obvious problems.
A2 adjective /maɪld/

mild

Meaning
not severe or strong; gentle in nature
Example
The patient had only mild symptoms.
B2 verb /ɪnˈlɑːrdʒ/

enlarge

Meaning
to make something bigger or increase in size
Example
They decided to enlarge their house.