adjacency
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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 verb /əˈsæsɪneɪt/

assassinate

Meaning
To murder someone important, often a political or religious leader, usually by surprise attack.
Example
The rebels planned to assassinate the king.
C1 noun ˈælərdʒən

allergen

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

aperture

Meaning
an opening, hole, or gap, especially one that lets in light
Example
Light entered through the small aperture in the wall.
C1 noun /ˈæbət/

abbot

Meaning
The head of a monastery for monks.
Example
The abbot welcomed the visitors to the monastery.
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 /ɔːˈdæs.ə.ti/

audacity

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

amputate

Meaning
to cut off a limb from the body by surgery
Example
The doctors had to amputate his leg after the accident.
C1 adjective /əˌpɒk.əˈlɪp.tɪk/

apocalyptic

Meaning
Describing the end of the world, or something catastrophic and disastrous.
Example
The movie depicts an apocalyptic future after a nuclear war.
C1 noun /əˈpærəl/

apparel

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

ampere

Meaning
A unit of electric current in the International System of Units (SI), symbolized as A.
Example
The current flowing through the wire is measured in amperes.
C1 adjective /ˈɑːrɡjuəbl/

arguable

Meaning
open to debate or discussion; not certain and capable of being argued for or against
Example
It is arguable that technology has improved our quality of life.
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 /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 noun /əˌtɜːni ˈdʒɛnərəl/

attorney-general

Meaning
The chief legal officer of a state or country.
Example
The attorney-general announced new reforms to strengthen justice.
C1 noun /ˌædəˈreɪʃən/

adoration

Meaning
deep love and respect; worship
Example
The fans showed their adoration for the singer.
C1 verb /əˈbriːvieɪt/

abbreviate

Meaning
To shorten a word, phrase, or text by leaving out letters or parts.
Example
We often abbreviate 'Doctor' to 'Dr'.
C1 adverb /əˈkjuːtli/

acutely

Meaning
in a sharp, intense, or severe way; with keen awareness
Example
She was acutely aware of the risks involved.
C1 verb ɔːɡˈmɛntɪŋ

augmenting

Meaning
Increasing; making something greater in size, number, or degree
Example
Life expectancy is augmenting with advancements in healthcare.
C1 noun /aɪ/

aye

Meaning
an affirmative vote or expression of agreement
Example
The committee voted aye on the proposal.
C1 noun /əˈseɪlənt/

assailant

Meaning
a person who attacks another
Example
The police arrested the assailant at the scene.
C1 noun /əˈpɒsəl/

apostle

Meaning
A vigorous and pioneering advocate or supporter of a particular cause, often used for the early Christian disciples.
Example
He became an apostle of environmental protection.
C1 noun esˈθet.ɪks

aesthetics

Meaning
A set of principles concerned with the nature and appreciation of beauty, especially in art and design.
Example
Interior design focuses on aesthetics and functionality.
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 adjective /ˈækʃənəbl̩/

actionable

Meaning
Able to be acted on or giving sufficient reason for legal action.
Example
The lawyer confirmed that the evidence was actionable in court.
C1 noun /əˌlɪtəˈreɪʃən/

alliteration

Meaning
the occurrence of the same consonant sound at the beginning of words in close succession
Example
She used alliteration in her poem to add musicality.
C1 noun /ədˈmɪtəns/

admittance

Meaning
the process or fact of entering or being allowed to enter a place
Example
No admittance without a valid ticket.
C1 noun /ˈɑːrdər/

ardor

Meaning
Great enthusiasm or passion.
Example
She spoke with ardor about her new project.
C1 adjective /ˌeɪsɪˈmɛtrɪkəl/

asymmetrical

Meaning
Having parts that are not the same in size, shape, or arrangement.
Example
She wore an asymmetrical dress that drew everyone’s attention.
C1 verb /ˈeɪ.li.ə.neɪt/

alienate

Meaning
To make someone feel isolated or estranged; to cause someone to become unfriendly.
Example
His rude behavior alienated many of his friends.
C1 adverb /əˈbrɛst/

abreast

Meaning
side by side and facing the same direction; informed about something
Example
The soldiers marched two abreast down the street.
C1 verb /eɪl/

ail

Meaning
to be ill or suffer from a physical or mental problem; to trouble or afflict
Example
She has been ailing since last winter.
C1 noun /ˌæɡ.rəˈveɪ.ʃən/

aggravation

Meaning
The act of making a situation worse or the state of being worsened.
Example
The delay caused great aggravation for the passengers.
C1 noun /əˈliː.dʒəns/

allegiance

Meaning
Loyalty or commitment of a subordinate to a superior or of an individual to a group or cause.
Example
Soldiers take an oath of allegiance to their country.
C1 noun /æbˈdʌk.ʃən/

abduction

Meaning
the act of taking someone away illegally by force; kidnapping
Example
The police are investigating the abduction of the child.
C1 noun /əˌsæsɪˈneɪʃən/

assassination

Meaning
The act of killing someone important, often for political or ideological reasons.
Example
The assassination of the president shocked the nation.
C1 adjective, noun /ɔːɡˈzɪliəri/

auxiliary

Meaning
(adjective) providing supplementary or additional help and support; (noun) a person or thing that provides auxiliary support
Example
The hospital has an auxiliary power generator in case of emergencies.
C1 verb /əˈlɒt/

allot

Meaning
to give or assign something, often a share or portion, to someone
Example
Each student was allotted ten minutes to present.
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 noun /ˌæŋɡloʊ ˈsæksən/

anglo-saxon

Meaning
A member of the Germanic peoples who settled in England in the early Middle Ages; also relating to their language or culture.
Example
The Anglo-Saxon period greatly influenced English culture and language.
C1 adjective/adverb /əˈmɪs/

amiss

Meaning
Not quite right; inappropriate or out of place.
Example
Something seems amiss with the car's engine.
C1 adjective /ɑːrˈkeɪn/

arcane

Meaning
understood by few; mysterious or secret
Example
The professor’s lecture was full of arcane details that only specialists could follow.
C1 verb /əˈmæs/

amass

Meaning
to gather together or accumulate over a period of time
Example
He managed to amass a fortune through wise investments.
C1 adjective /ˌɔːtəˈkrætɪk/

autocratic

Meaning
Relating to a ruler who has absolute power and does not consult others.
Example
The manager’s autocratic style discouraged employees from sharing their ideas.
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 adjective /əˈdɛpt/

adept

Meaning
Very skilled or proficient at something.
Example
She is adept at solving complex mathematical problems.
C1 adjective /ˌærɪˈstɒkrætɪk/

Aristocratic

Meaning
noble; having the manners of the upper class
Example
She had an aristocratic bearing that commanded respect.
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 /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 /ˌæl.ɡəˈrɪð.mɪk/

algorithmic

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

averse

Meaning
having a strong dislike of or opposition to something
Example
He was averse to taking unnecessary risks.
C1 noun /ˈænərkɪst/

anarchist

Meaning
a person who believes in or promotes the absence of government or authority
Example
The anarchist group protested against state control.
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 noun ɔːˈstɛr.ɪ.ti

austerity

Meaning
Simple and disciplined lifestyle, avoiding luxury.
Example
The government implemented austerity measures to reduce expenses.
C1 noun ˌeə.rəʊ.daɪˈnæm.ɪks

aerodynamics

Meaning
The study of the properties of moving air and the interaction between the air and solid bodies moving through it.
Example
The aerodynamics of an aircraft determines its speed and efficiency.
C1 adjective /ˈædəmənt/

Adamant

Meaning
একগুঁয়ে; জেদী; দৃঢ়সংকল্প; অনমনীয়;
Example
She was adamant about her decision to leave the company.
C1 verb /ˈæbdɪkeɪt/

abdicate

Meaning
To give up a position of power or responsibility, especially a throne.
Example
The king decided to abdicate the throne.
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 /ˈɑːrmfʊl/

armful

Meaning
As much as can be carried in one or both arms.
Example
She carried an armful of books into the library.
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 verb əˈkruː

accrue

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

ancillary

Meaning
providing necessary support to the main system or organization
Example
The company provides ancillary services to the healthcare industry.
C1 adjective /əˈsɛndənt/

ascendant

Meaning
Rising in power or influence; dominant.
Example
She is an ascendant leader in the political party.
C1 adjective /əˈɡrɛəriən/

agrarian

Meaning
Related to farming, agriculture, or rural land.
Example
The country’s economy is still largely agrarian.
C1 noun /ədˈhɪə.rəns/

adherence

Meaning
The practice of following or keeping to a rule, standard, or belief.
Example
Adherence to rules is crucial in any organization.
C1 adjective /əˈdɒptɪv/

adoptive

Meaning
relating to the adoption of a child or the act of taking something as one’s own
Example
She grew up in a loving adoptive family.
C1 adjective /ˌeɪsɪˈmɛtrɪk/

asymmetric

Meaning
Not having equal or corresponding parts; lacking symmetry.
Example
The design of the building is asymmetric and unusual.
C1 noun /ˈæspɪrənt/

aspirant

Meaning
a person who seeks or hopes to achieve a position of honor or advancement
Example
She is an aspirant for the university's top scholarship.
C1 noun /ˈæl.kə.laɪ/

alkali

Meaning
a soluble base substance, typically with a pH greater than 7, that neutralizes acids
Example
Soap contains alkali which helps remove grease.
C1 noun /əˈbændənmənt/

abandonment

Meaning
the act of leaving someone or something behind completely; the state of being deserted
Example
The child suffered deep emotional pain because of abandonment.
C1 noun /əˈtrɑːsəti/

atrocity

Meaning
an extremely cruel or violent act, often involving physical violence
Example
The world condemned the atrocity committed against civilians.
C1 preposition /əˈtɒp/

atop

Meaning
on the top of something
Example
A flag was placed atop the tower.
C1 verb /əˈdʒɔɪn/

adjoin

Meaning
To be next to and joined with something.
Example
Their house adjoins the park.
C1 verb /əkˈsɛntʃueɪt/

accentuate

Meaning
to emphasize or make something more noticeable
Example
The lighting accentuated the beauty of the painting.
C1 noun əˈpreɪ.zəl

appraisal

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

abrasive

Meaning
harsh, rough, or capable of wearing down by rubbing
Example
His abrasive tone made everyone uncomfortable.
C1 noun əbˈzɔːrp.ʃən

absorption

Meaning
The process or action by which one thing absorbs or is absorbed by another.
Example
Plants help in the absorption of carbon dioxide.
C1 adjective /ˈɑːtfəl/

Artful

Meaning
clever or skillful, especially in a cunning way
Example
She gave an artful answer that avoided the real question.
C1 noun əˈniː.mi.ə

anemia

Meaning
A condition in which there is a deficiency of red blood cells or hemoglobin in the blood.
Example
Genetic therapy addresses anemia effectively.
C1 verb /əˈpɛnd/

append

Meaning
to add something as an attachment or supplement, usually at the end of a document or list
Example
She decided to append a note to the end of the report.
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 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 noun /ɔːˈtɒmətən/

automaton

Meaning
A machine that works automatically; also refers to a person who behaves like a machine, without thinking.
Example
He worked like an automaton, without showing any emotion.
C1 noun /ˌæntɪˈsiːdənts/

antecedents

Meaning
previous events, conditions, or people that influence or serve as a basis for something that follows
Example
The lawyer examined the criminal antecedents of the suspect.
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 /ˈækəleɪd/

accolade

Meaning
An award, honor, or expression of praise.
Example
She received an accolade for her outstanding performance.
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 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 verb /ˈæɡənaɪz/

agonize

Meaning
To suffer extreme physical or mental pain; to spend time worrying.
Example
She agonized for days over whether she had made the right decision.
C1 noun /ˈædɪdʒ/

adage

Meaning
a short, well-known saying that expresses a general truth or piece of advice
Example
The old adage says that honesty is the best policy.
C1 adjective /ˈæv.ɪd/

avid

Meaning
having an eager desire or enthusiasm for something
Example
She is an avid reader of mystery novels.
C1 verb ˌæs.ɚˈteɪn

ascertain

Meaning
To find out or discover something with certainty; to verify.
Example
The police tried to ascertain the cause of the accident.
C1 noun /əˈrɪəz/

arrears

Meaning
Money that is owed and should have been paid earlier.
Example
She was months in arrears with her electricity bill.
C1 adjective /ˌeɪpəˈlɪtɪkəl/

apolitical

Meaning
not interested in or not connected with politics
Example
She prefers to stay apolitical and focus on her work.
C1 verb /ˈædʒ.ɪ.teɪt/

agitate

Meaning
to stir up feelings or disturb; to campaign for change
Example
The protesters agitated for better working conditions.
C1 adjective /ˌæntiˈneɪtl/

antenatal

Meaning
Relating to the medical care and treatment given to a pregnant woman before the birth of her child.
Example
She attended regular antenatal checkups throughout her pregnancy.
C1 adverb /əˈfrɛʃ/

afresh

Meaning
From the beginning, in a new way.
Example
After the failure, they started the project afresh.
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 adjective /əˈɡæst/

aghast

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

arresting

Meaning
Attracting attention in a striking or impressive way.
Example
The actress gave an arresting performance.
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 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 noun /əˈtjuːn.mənt/

attunement

Meaning
Being in harmony or responsive to someone's emotional state.
Example
Attunement to emotions improves relationships.
C1 noun /ˈænəɡræm/

anagram

Meaning
A word or phrase formed by rearranging the letters of another word or phrase.
Example
The word 'listen' is an anagram of 'silent'.
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 adjective /ɔːˈtʌmnəl/

autumnal

Meaning
relating to or characteristic of autumn; occurring in autumn
Example
The autumnal colors of red and gold filled the forest.
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 adverb /əˈtroʊʃəsli/

atrociously

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

astuteness

Meaning
The ability to accurately assess situations or people and turn this to one's advantage.
Example
His astuteness helped in negotiations.
C1 adjective /əˈbɪzməl/

abysmal

Meaning
extremely bad or appalling
Example
The team's performance was abysmal.
C1 verb /əˈbeɪt/

abate

Meaning
to become less intense or widespread
Example
The storm began to abate after midnight.
C1 noun ˈæ.sɛt ˌæl.əˈkeɪ.ʃən

asset allocation

Meaning
An investment strategy that aims to balance risk and reward by apportioning a portfolio's assets according to an individual's goals, risk tolerance, and investment horizon.
Example
Proper asset allocation is key to financial growth.
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 /ˈæb.stɪ.nəns/

abstinence

Meaning
the practice of restraining oneself from indulging in something, typically alcohol or sex
Example
His doctor advised abstinence from alcohol for better health.
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 noun /əˈduː/

ado

Meaning
a fuss or unnecessary activity; trouble or difficulty
Example
Without further ado, let’s begin the ceremony.
C1 noun /əˈluːʒən/

allusion

Meaning
An indirect reference to something without mentioning it explicitly.
Example
Her story contained an allusion to a famous myth.
C1 adjective /ˈædʒ.aɪl/

agile

Meaning
able to move quickly and easily; quick and adaptable in thinking or action
Example
The startup team was agile in responding to market changes.
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 /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 noun /ˌeɪ.li.əˈneɪ.ʃən/

alienation

Meaning
The state of being isolated or estranged from a group or activity.
Example
The new policies created a sense of alienation among employees.