officially
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B2 adverb /əˈfɪʃəli/

officially

Meaning
in a formal or authorized way
Example
The building was officially opened by the mayor.
A2 noun /kraʊd/

crowd

Meaning
a large number of people gathered together
Example
A huge crowd gathered to watch the concert.
C1 adjective /ɑːrˈkeɪɪk/

archaic

Meaning
very old or old-fashioned; belonging to an earlier time
Example
Some laws are considered archaic and no longer relevant.
B2 noun /hɔːk/

Hawk

Meaning
a bird of prey with broad wings and strong talons used for hunting
Example
The hawk soared high above the field hunting for prey.
C1 noun /ˈkɒlərə/

cholera

Meaning
An infectious disease of the small intestine causing severe vomiting and diarrhea.
Example
The village suffered an outbreak of cholera after the flood.
C2 noun /ˌmɪsˈnoʊmər/

misnomer

Meaning
A wrong or inaccurate name or designation.
Example
Calling the tiny dog a 'giant' is a misnomer.
C1 noun /dɪˈvaɪzər/

divisor

Meaning
A number by which another number is divided.
Example
In the equation 12 ÷ 3, the number 3 is the divisor.
C2 noun /ɪnˈfriːkwəns/

infrequence

Meaning
The state of occurring rarely or at long intervals.
Example
The infrequence of their meetings made it hard to maintain close ties.
A2 noun /bɜːrθ/

Birth

Meaning
the emergence of a baby or young from the body of its mother; the beginning or origin of something
Example
The birth of their first child was a joyful moment.
B2 verb /ɪnˈdeɪndʒər/

endanger

Meaning
To put someone or something at risk or in danger.
Example
Cutting down forests can endanger many species of animals.
B2 verb /bɪˈfrɛnd/

befriend

Meaning
to act as a friend to someone; to make friends with
Example
She befriended the new student at school.
B1 noun /ˈætməsˌfɪər/

Atmosphere

Meaning
the envelope of gases surrounding the earth or another planet; the pervading tone or mood of a place
Example
The atmosphere protects us from harmful solar radiation.
A2 adjective /ˈhɛl.θi/

healthy

Meaning
Good physical and mental condition, free from disease or illness.
Example
Regular exercise and a balanced diet keep the body healthy.
A1 adjective /ˈspɛʃəl/

special

Meaning
different from what is usual; better or greater than normal
Example
This gift is very special to me.
C1 noun /ˈtæbloʊ/

tableau

Meaning
a striking or artistic scene or arrangement of people or objects, often presented on stage or in art
Example
The actors froze in a tableau that captured the final moment of the play.
B2 verb /dɪsˈtɜːb/

disturb

Meaning
to interrupt or cause someone to stop what they are doing
Example
Please don’t disturb me while I’m studying.
B1 verb /skrætʃ/

scratch

Meaning
to rub a surface or skin with something sharp or rough, often to relieve itching
Example
The cat scratched the door to be let in.
A2 verb ˈselɪbreɪt

celebrate

Meaning
To acknowledge a significant or happy day or event with a social gathering or enjoyable activity.
Example
Bangladesh celebrates Urban Planning Day on November 8.
C2 noun, adjective /ɪˈklɪptɪk/

ecliptic

Meaning
The apparent path of the sun across the sky; relating to eclipses or this path.
Example
The ecliptic is the plane of Earth's orbit around the Sun.
C2 noun /ˈskɜː.vi/

scurvy

Meaning
A disease caused by a deficiency of vitamin C, leading to weakness, gum disease, and bleeding.
Example
Sailors often suffered from scurvy during long sea voyages without fresh fruits.
C2 noun /praɪˈveɪʃən/

privation

Meaning
A state in which things essential for human well-being such as food and warmth are lacking.
Example
The refugees suffered great privation during the harsh winter.
C1 adjective /prəˈsiːdʒərəl/

procedural

Meaning
Relating to an established or official way of doing something; concerned with procedure.
Example
The committee followed the procedural rules strictly.
C2 noun /ˈfrɔːdjʊləns/

fraudulence

Meaning
The quality or state of being fraudulent; deceitfulness.
Example
The audit revealed fraudulence in the financial statements.
C2 noun /pɪˈdɒl.ə.dʒi/

pedology

Meaning
The study of soils in their natural environment.
Example
Pedology helps scientists understand soil fertility.
B1 noun /ˈhɪr.ɪŋ/

Hearing

Meaning
the faculty of perceiving sounds; a session in which testimony and arguments are heard
Example
The elderly man's hearing had deteriorated, so he needed to wear a hearing aid.
C1 adjective /ˈlækˌlʌstər/

lackluster

Meaning
Lacking in vitality, force, or conviction; uninspired or uninspiring.
Example
The lackluster performance disappointed the audience.
C1 verb /ˈtiːtər/

teeter

Meaning
to move or balance unsteadily; to wobble
Example
The glass began to teeter on the edge of the table.
C1 adjective /dɪˈreɪndʒd/

deranged

Meaning
mentally disturbed or insane; behaving irrationally
Example
The deranged man shouted nonsense in the street.
C1 noun /ˈpəʊstˌskrɪpt/

postscript

Meaning
an additional remark at the end of a letter or text, after the signature
Example
She added a brief postscript to thank him again.
B2 noun /dʒiˈɒl.ə.dʒi/

geology

Meaning
the science that deals with the Earth's physical structure and substances
Example
She studied geology to understand earthquakes.
B2 adverb /ˈsɪmɪlərli/

similarly

Meaning
in a similar way
Example
Similarly, we can achieve success with dedication and hard work.
C2 noun /loʊm/

loam

Meaning
Fertile soil mixture of sand, clay, and organic matter.
Example
Loam soil is ideal for agriculture due to its nutrient content.
B2 verb /ɪkˈskleɪm/

exclaim

Meaning
to cry out suddenly in surprise, strong emotion, or excitement
Example
She exclaimed with joy when she saw the gift.
C2 noun /ɪnˈtriːti/

entreaty

Meaning
An earnest or humble request or plea.
Example
She made an entreaty for peace during the heated argument.
B2 adjective /ˈniː.di/

Needy

Meaning
requiring help or support; poor; lacking basic necessities
Example
The charity helps needy families during the winter.
C1 verb /prəˈkræs.tɪ.neɪt/

procrastinate

Meaning
To delay or postpone action; to put off doing something, especially out of habitual carelessness or laziness.
Example
He tends to procrastinate when facing difficult tasks.
C1 adjective ˈɪn.tər.ɪm

interim

Meaning
In or for the intervening period; provisional or temporary.
Example
Interim governments manage transitional phases.
B2 adjective /ɪˈrɛləvənt/

Irrelevant

Meaning
not connected with or relevant to something; having no bearing on the matter
Example
Your past mistakes are irrelevant to this discussion.
C1 verb /ɪnˈθjuːz/

enthuse

Meaning
to express excitement or admiration
Example
She enthused about her trip to Italy.
C2 adjective /ˈfæsaɪl/

Facile

Meaning
easily achieved; superficial; lacking depth
Example
His facile explanation didn't address the real problem.
B2 adjective, noun /ɪzˈreɪli/

israeli

Meaning
relating to Israel or its people; a person from Israel
Example
She works for an Israeli company.
C1 noun səˌsɛp.təˈbɪl.ə.ti

susceptibility

Meaning
The quality of being likely to be influenced or harmed by a particular thing; vulnerability.
Example
High susceptibility to infections requires extra care.
C2 noun /ˌɛpɪˈsaɪklɔɪd/

epicycloid

Meaning
a curve traced by a point on the circumference of a circle that rolls around the outside of another circle
Example
The mathematician demonstrated how to draw an epicycloid.
C1 adjective ˈsɒvrɪn

sovereign

Meaning
Possessing supreme or ultimate power; independent.
Example
The sovereign government has control over its currency.
B1 noun /ˌdɪsəˈpɔɪntmənt/

disappointment

Meaning
the feeling of sadness or displeasure caused by the non-fulfillment of one's hopes or expectations
Example
Her face showed deep disappointment after hearing the results.
C2 noun /ɪˈmɛtɪk/

emetic

Meaning
a substance that causes vomiting
Example
The doctor administered an emetic to remove the poison.
C1 noun /ˈrɛspɪt/

respite

Meaning
A short period of rest or relief from something difficult or unpleasant.
Example
The weekend provided a welcome respite from work.
A2 verb /əˈpɒlədʒaɪz/

apologize

Meaning
to say sorry for something wrong you have done
Example
He apologized for being late to the meeting.
B2 verb ədˈhɪər

adhere

Meaning
To stick firmly to something or stay attached.
Example
Neutrons adhere to protons.
C1 adjective /daɪˈvɜːrsɪfaɪd/

diversified

Meaning
Made or having variety in form, nature, or content.
Example
The company adopted a diversified business strategy to reduce risks.
C1 noun /sɪˈkluːʒən/

seclusion

Meaning
The state of being private, away from other people.
Example
She spent the weekend in complete seclusion in her cabin.
A2 adverb /ˈɒbviəsli/

obviously

Meaning
in a way that is easily perceived or understood; clearly
Example
Obviously, he didn’t read the instructions.
C1 noun /ˈwiː.vər/

Weaver

Meaning
a person who makes cloth by interlacing threads on a loom
Example
The skilled weaver created intricate patterns on the silk fabric.
C2 verb /rɪˈpruːv/

reprove

Meaning
to criticize or correct someone gently or disapprove of their actions
Example
The teacher reproved the student for being late.
C2 adjective /baɪˈkæmərəl/

bicameral

Meaning
Having two branches or chambers, especially in a legislature.
Example
The United States has a bicameral legislature consisting of the Senate and the House of Representatives.
B2 verb /ˌmɪsbɪˈheɪv/

misbehave

Meaning
to behave badly or inappropriately; to act in an unacceptable way
Example
The children misbehaved during the school assembly.
B1 noun /pəˈlɪtɪʃən/

politician

Meaning
a person who is involved in politics, especially as a profession
Example
The politician promised to improve the economy.
C1 adjective /ˈneɡ.lɪ.dʒə.bəl/

Negligible

Meaning
so small or unimportant as to be not worth considering; insignificant
Example
The side effects of this medicine are negligible.
A2 noun ˈmɒd.əl

model

Meaning
A framework, prototype, or simulation used to represent or understand a system or process.
Example
Scientists use a model to simulate climate change.
B2 verb /səbˈskraɪb/

subscribe

Meaning
to pay to receive a service regularly; to agree with or support something
Example
I subscribe to several online magazines.
B2 noun /ˈkɒŋɡrɛs/

congress

Meaning
a formal meeting or assembly, especially of representatives for discussion
Example
The international congress on climate change will be held next year.
C2 noun /ˈklævɪkəl/

clavicle

Meaning
the collarbone, a long bone that serves as a strut between the shoulder blade and the sternum
Example
He fractured his clavicle in the accident.
C2 noun /pəˈlæv.ər/

palaver

Meaning
prolonged and idle discussion; fuss or unnecessary talk
Example
After much palaver, they finally agreed on the plan.
B1 noun /əˈpruː.vəl/

approval

Meaning
official permission or agreement for something
Example
The project received government approval.
A2 noun ədˈvɛnʧər

Adventure

Meaning
An unusual and exciting experience or activity that is typically bold and sometimes risky.
Example
Adventure travel is loved by thrill-seekers.
B1 verb /ɪkˈsplɔːrɪŋ/

exploring

Meaning
Investigating or studying thoroughly; searching into or ranging over for the purpose of discovery.
Example
They are exploring different areas of Antarctica.
B2 noun /ˈmeɪər/

mayor

Meaning
The elected head of a city, town, or municipality.
Example
The mayor announced a new policy to improve public transport.
C1 adjective, noun /rɪˈsiːvəbl/

receivable

Meaning
Money that is owed to a company and is expected to be paid.
Example
The company's receivables increased significantly this quarter.
C1 noun ˈaʊt.sɔːr.sɪŋ

outsourcing

Meaning
The practice of having certain job functions done outside a company instead of having an in-house department or employee handle them.
Example
Many companies use outsourcing to reduce labor costs.
B2 noun /koʊl/

coal

Meaning
a black or dark brown rock used as fuel, formed from decomposed plant matter
Example
The factory still uses coal as its main source of energy.
C1 adjective /prɪˈkoʊʃəs/

precocious

Meaning
Showing advanced development or maturity at an unusually early age.
Example
The precocious child was reading novels at the age of five.
C1 adjective /ʌnˈtʃælɪndʒd/

Unchallenged

Meaning
not disputed or questioned; accepted without opposition; having no rival
Example
He remained the unchallenged champion for five years.
A2 noun /teɪp/

tape

Meaning
a long, narrow strip of material, often sticky on one side, used for fastening or sticking things together
Example
I need some tape to seal this box.
C1 adjective /fəˈnɛtɪk/

phonetic

Meaning
relating to the sounds of speech or pronunciation
Example
The teacher taught the students the phonetic spelling of difficult words.
C1 verb /rɪˈklaɪn/

recline

Meaning
To lean or lie back in a relaxed position.
Example
She reclined on the sofa with a book.
C2 noun /ˈkeɪsiːn/

Casein

Meaning
the main protein found in milk and cheese, used in food production and supplements
Example
Casein protein powder is popular among athletes for muscle recovery.
C1 adjective /tjuːˈmʌltʃuəs/

tumultuous

Meaning
Characterized by disorder, noisy excitement, or emotional agitation.
Example
They had a tumultuous relationship full of ups and downs.
C2 noun /ˌhoʊ.mi.oʊˈsteɪ.sɪs/

homeostasis

Meaning
The tendency toward a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes.
Example
The human body maintains homeostasis through temperature regulation.
C2 verb /ˌænɪmədˈvɜːt/

animadvert

Meaning
To comment critically or unfavorably.
Example
The teacher animadverted on the student's careless mistakes.
C2 noun /ˈhæŋ.kər/

Hanker

Meaning
a feeling of yearning or craving; a strong desire for something
Example
After years abroad, she developed a deep hanker for her homeland's traditional cuisine.
C2 noun /ʃiːt fɪʃ/

Sheat-fish

Meaning
A large freshwater catfish with a broad flat head and long barbels
Example
The sheat-fish is one of the largest freshwater fish in South Asia.
C1 verb /ˈɒs.ɪ.leɪt/

oscillate

Meaning
To swing or move back and forth between two points or states
Example
The stock market tends to oscillate during uncertain times.
B2 adverb /ˈsɛkʃuəli/

sexually

Meaning
in a way that relates to or involves sexual activity or feelings
Example
The film was considered too sexually explicit for young audiences.
C2 noun /ˈkɒn.tjʊ.mə.si/

contumacy

Meaning
stubborn refusal to obey authority
Example
His contumacy led to his suspension from the council.
C2 adjective /prɪˈmɒnɪtəri/ or /ˌpriːməˈnɪtəri/

premonitory

Meaning
giving a warning or prediction about something, especially something unpleasant
Example
He ignored the premonitory signs of illness.
B1 noun /ˈfɪnɪʃ laɪn/

finish line

Meaning
The line or point at the end of a race or competition where participants complete it.
Example
She sprinted towards the finish line and won the race.
B2 noun /ˈkæp.tɪv/

Captive

Meaning
a person who has been taken prisoner or an animal that has been confined
Example
The captive was held in a small cell for several months.
A2 adverb; noun /ˌaʊtˈdɔːrz/

outdoors

Meaning
outside a building; the natural environment outside
Example
We spent the whole afternoon outdoors enjoying the fresh air.
A2 noun /dʌk/

Duck

Meaning
a waterbird with webbed feet and a broad flat bill
Example
The duck swam gracefully across the lake.
C1 noun /vəˈlɒs.ɪ.ti/

velocity

Meaning
Speed or acceleration, the rate of movement of any object or vehicle.
Example
High velocity trains reduce travel time significantly.
B2 noun ɪˈfɪʃ.ən.si

efficiency

Meaning
The state or quality of being efficient; achieving maximum productivity with minimum wasted effort or expense.
Example
Efficiency in communication is crucial for businesses.
C2 noun /kəˈraʊzl/

carousal

Meaning
A noisy or lively drinking party or festivity.
Example
They were exhausted after a night of wild carousal.
C1 verb /ɛtʃ/

etch

Meaning
to cut or carve a design onto a surface
Example
The artist etched her initials into the glass.
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.
C2 adjective /ˈæpəzɪt/

apposite

Meaning
highly appropriate or relevant to what is being discussed
Example
Her remark was particularly apposite to the situation.
B1 noun ˈliː.də.ʃɪp

leadership

Meaning
The action of leading a group of people or an organization.
Example
Leadership is crucial for institutional success.
B2 adjective /raɪp/

Ripe

Meaning
fully developed and ready to eat; mature; ready for action or use
Example
The bananas are ripe and ready to eat.
B1 noun /ˈmaɪ.krəˌskoʊp/

microscope

Meaning
An optical instrument used for viewing very small objects, such as cells, by magnifying them.
Example
The scientist observed the bacteria under the microscope.
C2 noun /səbˈmɜːrʒən/

submersion

Meaning
the state of being under water
Example
The submersion of the fields lasted for several days after the heavy rain.
B1 noun /ˈvɪk.tɪm/

Victim

Meaning
a person who suffers harm, injury, or death as a result of an event or action
Example
The victim was taken to the hospital immediately.
C2 noun /fɪˈlændərər/

philanderer

Meaning
a man who habitually engages in casual romantic or sexual affairs
Example
The politician was exposed as a notorious philanderer.
C1 noun /dɪˈfɪʃ.ən.si/

Deficiency

Meaning
a lack or shortage of something; inadequacy or insufficiency
Example
The doctor diagnosed a vitamin D deficiency in the patient's blood test.
C1 adjective /pərˈsɛptəbl̩/

perceptible

Meaning
Able to be noticed or recognized by the senses or the mind.
Example
There was a perceptible change in the atmosphere.
C1 noun /ˈiːdɪkt/

edict

Meaning
An official order, proclamation, or decree issued by an authority.
Example
The king issued an edict banning smoking in public places.
C1 noun /trænsˈfɜːrər/

transferrer

Meaning
A person who transfers something, such as property, rights, or responsibilities, to another.
Example
The transferrer is responsible for ensuring the property is legally passed on.
A2 noun /ˈpɪərɪəd/

period

Meaning
a length or portion of time
Example
The meeting will last for a period of two hours.
B2 noun /ˈɑː.mənd/

Almond

Meaning
edible seed of the almond tree
Example
Almonds are a healthy snack rich in protein and good fats.
C1 adjective /ˈɒm.ɪ.nəs/

Ominous

Meaning
giving the impression that something bad will happen; threatening; foreboding
Example
The dark clouds looked ominous before the storm.
C1 adjective ˌɪn.təˈstel.ər

interstellar

Meaning
Occurring or situated between stars.
Example
Scientists study interstellar travel possibilities.
C1 verb /ˈhaɪbərˌneɪt/

hibernate

Meaning
To spend the winter in a dormant state, as some animals do.
Example
Bears hibernate in caves during the winter.
C1 adjective /rɪˈtaɪərɪŋ/

retiring

Meaning
Shy and reserved; avoiding social contact.
Example
She is a quiet, retiring woman who avoids attention.
C1 noun /ˈæltoʊ/

alto

Meaning
the second highest adult singing voice, between soprano and tenor
Example
She sang the alto part in the choir beautifully.
A1 adverb /ðeər/

There

Meaning
in or at that place; to that place
Example
I will meet you there at 5 PM.
C1 noun /ˈweɪs(t).koʊt/

waistcoat

Meaning
a sleeveless garment worn over a shirt and under a jacket
Example
He wore a black waistcoat with his suit.
C1 noun /ˈsteɪl.meɪt/

stalemate

Meaning
A situation in which no progress can be made or no party can win.
Example
Negotiations ended in a stalemate.
B1 verb /ˌɛntərˈteɪn/

entertain

Meaning
to provide amusement, enjoyment, or hospitality to others
Example
The comedian entertained the audience with his jokes.
B1 noun /ˈwɜːrkaʊt/

workout

Meaning
a session of physical exercise or training to improve fitness or health
Example
She does a full-body workout every morning before work.
C2 noun /ˈtrʌk.jʊ.ləns/

truculence

Meaning
Aggressiveness or eagerness to fight.
Example
His speech was full of truculence and threats.
C2 verb /ˈsæŋktɪfaɪ/

sanctify

Meaning
to make holy or sacred; to purify
Example
The priest will sanctify the marriage ceremony.
B2 adjective /dɪsˈɡreɪsfəl/

Disgraceful

Meaning
shameful; bringing dishonor; worthy of condemnation
Example
His disgraceful behavior shocked everyone at the party.
C2 adjective /ˌfærɪˈseɪɪkəl/

pharisaical

Meaning
Excessively concerned with formal rules or outward show of morality, often in a hypocritical way.
Example
His pharisaical behavior made people doubt his sincerity.