apparatus
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C1 noun ˌæp.əˈreɪ.təs

apparatus

Meaning
The technical equipment or machinery needed for a particular activity or purpose.
Example
The apparatus was designed to be eco-friendly.
C1 adjective /ˈædʒɪteɪtɪd/

Agitated

Meaning
disturbed; anxious; restless; excited in a negative way
Example
He became agitated when he heard the bad news.
C1 adjective /iːsˈθɛθɪkəl/

aesthetical

Meaning
concerned with beauty or the appreciation of beauty; related to artistic taste or appearance
Example
The architect focused on the aesthetical balance of the building.
C1 noun ˌɔːɡ.menˈteɪ.ʃən

augmentation

Meaning
Increasing quantity, power or performance.
Example
The company invested in the augmentation of its workforce.
C1 noun /əˈsɛndənsi/

ascendancy

Meaning
A position of power, influence, or control over others.
Example
The company gained ascendancy in the market through innovation.
C1 adjective ˌæɡrɪˈkʌltʃərəli sɪɡˈnɪfɪkənt

agriculturally significant

Meaning
Important or crucial related to farming and agriculture
Example
Winter is agriculturally significant for crop production.
C1 noun /ˌɑːr.kəˈpɛl.əˌɡoʊ/

archipelago

Meaning
A group of islands clustered together in a body of water.
Example
Indonesia is an archipelago with thousands of islands.
C1 verb /əˈpɔːl/

appall

Meaning
To shock or horrify someone with something unpleasant or bad.
Example
The cruelty of the crime appalled the entire community.
C1 adjective əsˈtjuːt

astute

Meaning
Having or showing an ability to accurately assess situations or people and turn this to one's advantage.
Example
His astute observations helped solve the complex problem.
C1 adjective /ˈæmərəs/

amorous

Meaning
Showing, feeling, or relating to romantic love or desire.
Example
He sent her an amorous letter filled with declarations of love.
C1 adverb /əˈraɪ/

awry

Meaning
away from the expected or proper direction; wrong or amiss
Example
The plan went awry when the weather suddenly changed.
C1 noun /ɔːˈtɒkrəsi/

autocracy

Meaning
A system of government in which one person has absolute power.
Example
The country suffered under decades of autocracy.
C1 verb /əˈdʒɜrn/

adjourn

Meaning
to suspend a meeting or session to another time or place
Example
The judge decided to adjourn the hearing until next week.
C1 noun /ˈɑː.kɪ.taɪp/

archetype

Meaning
A very typical example of a certain person or thing; an original model or prototype.
Example
This painting is the archetype of modern art.
C1 noun /ˈɑːr.sən.əl/

arsenal

Meaning
A collection or storage place for weapons and military equipment.
Example
The army kept its weapons in a secure arsenal.
C1 adjective /æmˈbɪvələnt/

ambivalent

Meaning
Having mixed or contradictory feelings about something or someone.
Example
She was ambivalent about accepting the new job offer.
C1 adjective /ədˈmɪsəbl/

admissible

Meaning
acceptable or valid, especially as evidence in a court of law
Example
The judge ruled that the document was admissible as evidence.
C1 adjective /ˌeɪθiˈɪstɪk/

atheistic

Meaning
Relating to or characteristic of atheists or atheism.
Example
She grew up in an atheistic household with no religious rituals.
C1 noun /ænˈtæɡənɪzəm/

antagonism

Meaning
active hostility or opposition
Example
There was clear antagonism between the two political parties.
C1 adjective /ˈɔː.də.bəl/

Audible

Meaning
able to be heard; loud enough to hear
Example
The speaker's voice was barely audible from the back of the large hall.
C1 noun /ˈælɪbaɪ/

alibi

Meaning
A claim or piece of evidence that one was elsewhere when an act, typically a crime, was committed.
Example
She had a strong alibi that proved she was at the cinema during the theft.
C1 adjective /ˈæm.ɪ.kə.bəl/

amicable

Meaning
Having a spirit of friendliness; without serious disagreement or rancor.
Example
They reached an amicable agreement.
C1 adverb /ˈæmpli/

amply

Meaning
more than sufficiently; generously
Example
She was amply rewarded for her hard work.
C1 verb /əˈdʒɔɪn/

adjoin

Meaning
To be next to and joined with something.
Example
Their house adjoins the park.
C1 adjective /əˈnæl.ə.ɡəs/

analogous

Meaning
Comparable in certain respects, typically in a way that makes clearer the nature of things being compared.
Example
The human brain is analogous to a supercomputer.
C1 noun /ˌætəˈʃeɪ/

attache

Meaning
A person officially assigned to the staff of a diplomatic mission, often with a specific area of responsibility.
Example
The cultural attache organized an art exhibition in the embassy.
C1 adjective /ˌæprɪˈhɛnsɪv/

apprehensive

Meaning
feeling anxious or fearful that something bad will happen
Example
He was apprehensive about starting a new job in a foreign country.
C1 adjective /ɔːˈtɒn.ə.məs/

autonomous

Meaning
Acting independently or having the freedom to do so.
Example
Autonomous systems ensure greater precision.
C1 adverb /əˈlɜːrtli/

alertly

Meaning
in a watchful, attentive, and quick-to-notice manner
Example
She listened alertly to every sound in the dark forest.
C1 verb /ˈænɪmeɪt/

animate

Meaning
to bring to life or make lively; to create animation for films or cartoons
Example
The artist will animate the characters for the movie.
C1 noun /əˈflɪkʃən/

affliction

Meaning
a state of pain, suffering, or distress
Example
Poverty is a common affliction in many parts of the world.
C1 adjective /ˌeɪˈmɔːrəl/

amoral

Meaning
Lacking a moral sense; unconcerned with rightness or wrongness of something.
Example
The character in the novel was portrayed as completely amoral.
C1 adjective /ɔːˌθɒr.ɪˈteə.ri.ən/

authoritarian

Meaning
Demanding absolute obedience to authority; excessively controlling or strict in governance.
Example
Authoritarian parenting often limits a child's independence.
C1 adjective /əˈrɛstɪŋ/

arresting

Meaning
Attracting attention in a striking or impressive way.
Example
The actress gave an arresting performance.
C1 noun /ˌæn.ɪˈmɒs.ə.ti/

Animosity

Meaning
strong hostility or dislike; active hatred or ill will
Example
There was clear animosity between the two rival teams.
C1 verb əˈkruː

accrue

Meaning
To accumulate or receive (payments or benefits) over time.
Example
Interest accrues on the savings account every month.
C1 adjective /əˈwɒʃ/

awash

Meaning
covered or flooded with water or something in large quantities
Example
The market was awash with cheap imported goods.
C1 adjective /ˈæntɪkweɪtɪd/

antiquated

Meaning
Old-fashioned or outdated.
Example
The office still uses an antiquated filing system.
C1 adjective /ˌærɪˈstɒkrætɪk/

Aristocratic

Meaning
noble; having the manners of the upper class
Example
She had an aristocratic bearing that commanded respect.
C1 noun /əˈdʒeɪsənsi/

adjacency

Meaning
The state of being next to or adjoining something else.
Example
The adjacency of the two buildings made it easy to connect them.
C1 noun /əˈkwɪtl/

acquittal

Meaning
a judgment that a person is not guilty of the crime with which they have been charged
Example
The acquittal of the accused shocked the public.
C1 verb /əˈfɪliˌeɪt/

affiliate

Meaning
to officially attach or connect (a group or organization) to a larger body
Example
The school is affiliated with the local university.
C1 noun /əˈbreɪʒən/

abrasion

Meaning
a scrape or wearing away of the skin or surface due to friction
Example
He suffered a minor abrasion on his knee after falling.
C1 noun, adjective /ˌæntiˈsɛptɪk/

antiseptic

Meaning
A substance that prevents the growth of disease-causing microorganisms; clean and free from germs.
Example
The nurse applied an antiseptic to the wound.
C1 noun /əˈboʊd/

abode

Meaning
a place of residence; a home
Example
They invited us to their humble abode.
C1 noun /ˈænti ˈeəkræft ɡʌn/

Anti-aircraft-gun

Meaning
a weapon designed to attack aircraft from the ground
Example
The anti-aircraft gun was positioned to defend the military base.
C1 adjective /ˈeɪ.mi.ə.bəl/

Amiable

Meaning
friendly and pleasant; good-natured; kind
Example
My neighbor is very amiable and always greets everyone warmly.
C1 adverb /əˈnjuː/

anew

Meaning
In a new or different way; once more.
Example
After the failure, she decided to start her life anew.
C1 noun /əˈpærəl/

apparel

Meaning
Clothing, especially formal or special clothes.
Example
The store specializes in wedding apparel.
C1 noun əˈtrɪʃ.ən

attrition

Meaning
The process of reducing something's strength or effectiveness through sustained attack or pressure.
Example
The company faced high employee attrition due to job dissatisfaction.
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 verb /əˈnʌl/

annul

Meaning
to declare something legally invalid or cancel it
Example
The court decided to annul the marriage due to fraud.
C1 noun /əˈlʌmnəs/

alumnus

Meaning
a former student or graduate of a school, college, or university
Example
He is an alumnus of Harvard University.
C1 noun /ˈæmfɪˌθiətər/

amphitheater

Meaning
A large open circular or oval building with rising tiers of seats, used for public events.
Example
The concert was held in an ancient amphitheater.
C1 noun ˈæk.si.əm

axiom

Meaning
A statement or principle that is considered true and does not require proof.
Example
Actions speak louder than words is a well-known axiom.
C1 adverb /iːsˈθetɪkli/

aesthetically

Meaning
in a way that is concerned with beauty or visual appeal
Example
The building is aesthetically pleasing despite its simple design.
C1 noun /ɑːrˈmɑːdə/

armada

Meaning
A large fleet of warships.
Example
The Spanish Armada sailed against England in 1588.
C1 noun /əˈsem.bli ˈseʃ.ən/

assembly session

Meaning
A formal meeting where representatives gather to discuss and make decisions on important matters.
Example
The assembly session discussed global challenges.
C1 noun /əˈkuːstɪks/

acoustics

Meaning
the science of sound, or the properties of a space that affect how sound is heard
Example
The hall’s excellent acoustics made the orchestra sound rich and clear.
C1 noun /ɑːˌtɪkjʊˈleɪʃən/

articulation

Meaning
The action of putting into words an idea or feeling of a specified type.
Example
His articulation during the debate impressed everyone.
C1 noun/verb /ˈætrəfi/

atrophy

Meaning
a decrease in size or wasting away of a body part, tissue, or ability due to lack of use
Example
Without regular exercise, muscles may atrophy over time.
C1 adjective /ədˈhiːsɪv/

Adhesive

Meaning
আঠালো; চটচটে;
Example
The adhesive tape stuck firmly to the wall.
C1 noun əˈɡrɛriən səˈsaɪətiz

agrarian societies

Meaning
Societies based on agriculture and farming as the primary economic activity.
Example
Agrarian societies emerged from a need for stable food sources.
C1 noun /ˈæpəθi/

apathy

Meaning
a lack of interest, enthusiasm, or concern
Example
The students showed apathy towards the new rules.
C1 verb /əˈluːd/

allude

Meaning
To refer to something indirectly or casually.
Example
The professor alluded to Shakespeare during the lecture.
C1 adjective /ˌæn.ɪkˈdoʊ.t̬əl/

anecdotal

Meaning
Based on personal accounts rather than facts or research; characterized by anecdotes.
Example
The book was filled with anecdotal evidence rather than data.
C1 noun /əˈsæsɪn/

Assassin

Meaning
a person who murders an important person for political or religious reasons
Example
The president was protected from potential assassins by security guards.
C1 noun /ˌɔːkʃəˈnɪər/

auctioneer

Meaning
a person who conducts auctions by calling out bids and selling items to the highest bidder
Example
The auctioneer quickly raised the price as bidders competed for the painting.
C1 noun /ˈɔːtəkræt/

autocrat

Meaning
A ruler with absolute power.
Example
The autocrat controlled the country with an iron fist.
C1 noun /əˈbɪs/

abyss

Meaning
a deep, immeasurable space, chasm, or void; something seemingly without end
Example
The climbers looked down into the dark abyss below.
C1 adjective /əˈkɪn/

akin

Meaning
Of similar character or related by blood.
Example
His reaction was akin to shock.
C1 noun /əˈsɛsər/

assessor

Meaning
a person who evaluates or estimates the nature, ability, or quality of something
Example
An external assessor reviewed the project report.
C1 noun /ˈænvɪl/

anvil

Meaning
A heavy iron block used by blacksmiths for hammering and shaping metal.
Example
The blacksmith placed the hot iron on the anvil.
C1 adjective /ˈɔːbərn/

auburn

Meaning
reddish-brown in color, especially used to describe hair
Example
She has long auburn hair that shines in the sunlight.
C1 adjective /əˈɡæst/

aghast

Meaning
filled with shock or horror
Example
The audience was aghast at the tragic scene.
C1 verb /əˈflɪkt/

afflict

Meaning
to cause pain, suffering, or distress to someone or something
Example
Many people are afflicted by seasonal allergies.
C1 adverb /ɔːˈtɒnəməsli/

autonomously

Meaning
In an independent or self-governing manner.
Example
The robot can operate autonomously without human intervention.
C1 verb /ˈæk.lɪ.meɪt/

acclimate

Meaning
To adapt or become accustomed to a new environment or situation
Example
It takes time to acclimate to a new climate.
C1 verb /əˈlʊər/

allure

Meaning
to attract or tempt someone with something desirable; to entice
Example
The beautiful garden allured visitors from far away.
C1 verb /əˈskraɪb/

ascribe

Meaning
To attribute something to a cause, source, or person.
Example
Many scholars ascribe the poem to an unknown author.
C1 noun /ˈæntɪˌdoʊt/

antidote

Meaning
A substance that neutralizes the effects of a poison; something that relieves or counteracts.
Example
The doctor quickly administered an antidote to the snake venom.
C1 noun /ˌɑːrbɪˈtreɪʃən/

arbitration

Meaning
the process of resolving a dispute through an impartial third party whose decision is binding; formal judgment outside a court
Example
The contract requires arbitration to settle any disputes.
C1 adverb /əˈtroʊʃəsli/

atrociously

Meaning
in a very cruel, shocking, or extremely bad manner
Example
The service at the restaurant was atrociously slow.
C1 noun ˈælərdʒən

allergen

Meaning
A substance that causes an allergic reaction.
Example
Pollen is a common allergen that affects many people.
C1 noun /ɔːˈdæs.ə.ti/

audacity

Meaning
The willingness to take bold risks; boldness or fearlessness.
Example
His audacity to question authority was admirable.
C1 verb /ˈɑːrbɪtreɪt/

arbitrate

Meaning
to settle a dispute between two parties by acting as an impartial judge
Example
The committee agreed to arbitrate the contract dispute.
C1 verb /əkˈsɛntʃueɪt/

accentuate

Meaning
to emphasize or make something more noticeable
Example
The lighting accentuated the beauty of the painting.
C1 noun /əˈlɒt.mənt/

allotment

Meaning
The distribution or allocation of something, especially resources or portions.
Example
Each department received an allotment of resources.
C1 noun /ədˈhiːʒən/

adhesion

Meaning
the process or state of sticking to something
Example
Strong adhesion is needed for the tiles to stay in place.
C1 verb /ˈæn.ɛks/

annex

Meaning
To take control of a territory and add it to one's own.
Example
The empire annexed the neighboring kingdom after the war.
C1 noun əˈtrɒs.ɪ.tiz

atrocities

Meaning
Extremely wicked or cruel acts, typically involving physical violence or injury.
Example
The atrocities shocked the international community.
C1 adjective ˈɑː.dʒu.əs

arduous

Meaning
Involving or requiring strenuous effort; difficult and tiring.
Example
The trek through the mountains was an arduous journey.
C1 noun /ˌædʒ.ɪˈteɪ.ʃən/

agitation

Meaning
a state of nervousness, excitement, or unrest; or action of stirring up public concern
Example
There was visible agitation among the crowd.
C1 verb /əˈtjuːn/

attune

Meaning
to make someone or something aware of or responsive to something; to adjust or harmonize
Example
She quickly attuned herself to the needs of her new team.
C1 adjective /əˈvɜːrs/

averse

Meaning
having a strong dislike of or opposition to something
Example
He was averse to taking unnecessary risks.
C1 adjective /æbˈdɑː.mə.nəl/

abdominal

Meaning
relating to the abdomen (the part of the body between the chest and pelvis)
Example
He complained of severe abdominal pain.
C1 noun /æɡˈnɒs.tɪk/

agnostic

Meaning
a person who believes that nothing is known or can be known about the existence of God; uncertain in belief
Example
He described himself as an agnostic rather than an atheist.
C1 adjective /ɔːˈstɪə/

austere

Meaning
Severe or strict in manner, attitude, or appearance; plain and simple.
Example
The monk lived an austere life in the mountains.
C1 verb /ɔːˈθɛntɪkeɪt/

authenticate

Meaning
To prove or show that something is genuine or true.
Example
The bank uses advanced technology to authenticate online transactions.
C1 adjective /ˌæl.ɡəˈrɪð.mɪk/

algorithmic

Meaning
Based on or using algorithms; relating to mathematical rules or procedures.
Example
Algorithmic processes power artificial intelligence systems.
C1 noun /ˌæfəˈdeɪvɪt/

affidavit

Meaning
a written statement confirmed by oath or affirmation, used as evidence in court
Example
The witness submitted an affidavit to the court.
C1 adjective, noun /əbˈzɔːrbənt/

absorbent

Meaning
able to soak up liquid, moisture, or energy easily; a material or substance that absorbs
Example
This towel is highly absorbent and dries quickly.
C1 noun əˈpreɪ.zəl

appraisal

Meaning
An assessment or evaluation of performance or quality.
Example
The annual appraisal determines salary increments.
C1 adjective /əˈtrəʊ.ʃəs/

Atrocious

Meaning
horrifyingly wicked; extremely bad or unpleasant
Example
The conditions in the prison were atrocious.
C1 noun /ˈæftərˌθɔːt/

afterthought

Meaning
Something added or considered later than originally planned.
Example
The gift seemed like an afterthought rather than a genuine gesture.
C1 adverb /ˈeɪ.mi.ə.bli/

Amiably

Meaning
in a friendly and pleasant manner
Example
They discussed the issue amiably without any arguments.
C1 noun əˈrɪd.ɪ.ti

aridity

Meaning
The state of being extremely dry, especially having insufficient rainfall to support vegetation.
Example
The aridity of the land is increasing due to climate change.
C1 noun /ˈækəleɪd/

accolade

Meaning
An award, honor, or expression of praise.
Example
She received an accolade for her outstanding performance.
C1 noun /ˌæn.əˈnɪm.ə.ti/

anonymity

Meaning
The state of being anonymous; having one's identity kept secret or unknown.
Example
Online anonymity protects users from cyber threats.
C1 noun /əˈdʒɪl.ɪ.ti/

agility

Meaning
Ability to work quickly and easily, both physically and mentally.
Example
Mental agility is essential for problem-solving.
C1 noun /æmˈniːʒə/

amnesia

Meaning
A partial or total loss of memory, usually caused by injury, illness, or psychological trauma.
Example
After the accident, she suffered from amnesia and could not remember her own name.
C1 verb /əˈkrɛdɪt/

accredit

Meaning
to officially recognize, authorize, or approve someone or something
Example
The university is accredited by the national education board.
C1 noun /əˈtaɪər/

attire

Meaning
Clothing, especially formal or elegant wear.
Example
She wore traditional attire at the wedding ceremony.
C1 adverb /əˈlɒft/

aloft

Meaning
Up in or into the air; overhead.
Example
The kite was flying aloft in the clear sky.
C1 verb /əˈfɪks/

affix

Meaning
to attach or stick something firmly to another thing
Example
Please affix the stamp to the envelope.
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.
C1 noun /ˌæntiˈklaɪmæks/

anticlimax

Meaning
A disappointing end after a big build-up of excitement or expectation.
Example
The movie's ending was an anticlimax after such a thrilling story.
C1 adjective /ˈæʃən/

ashen

Meaning
Very pale in appearance, often due to shock, fear, or illness.
Example
His face turned ashen when he heard the terrible news.
C1 noun /əˈlɜːrtnəs/

alertness

Meaning
the state of being mentally aware and quick to notice or respond; vigilance
Example
The driver maintained a high level of alertness during the long journey.
C1 verb /ænˈtæɡənaɪz/

antagonize

Meaning
to cause someone to become hostile or angry; to provoke opposition
Example
His rude remarks only served to antagonize his colleagues.
C1 noun, verb, adjective /ˈæɡ.rɪ.ɡət/ (noun/adjective), /ˈæɡ.rɪ.ɡeɪt/ (verb)

aggregate

Meaning
A whole formed by combining several elements; to combine into a total.
Example
The data was aggregated to provide a clearer picture of the market.