arbiter
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C2 noun /ˈɑːrbɪtər/

arbiter

Meaning
a person who has the authority to settle a dispute or decide an issue
Example
The principal acted as the arbiter in the conflict between the students.
C1 adjective /ˌeɪsɪˈmɛtrɪk/

asymmetric

Meaning
Not having equal or corresponding parts; lacking symmetry.
Example
The design of the building is asymmetric and unusual.
C2 verb /ˈæd.l̩/

addle

Meaning
To confuse or muddle someone’s mind.
Example
The complicated instructions only served to addle him.
C1 adjective /ˌeɪˈsɛkʃuəl/

asexual

Meaning
Without sexual feelings, associations, or reproduction through sex.
Example
Many plants reproduce through asexual methods like budding or splitting.
B1 noun /ˌæv.əˈkɑː.doʊ/

Avocado

Meaning
a green pear-shaped fruit with creamy flesh and high fat content, often used in healthy diets
Example
Avocado is rich in healthy fats and is popular in salads and toast.
B1 noun /ˈeɪ.dʒənt/

agent

Meaning
A person who acts on behalf of another person or organization.
Example
The real estate agent showed us several houses.
B1 noun ɔːlˈtɜːrnətɪv

alternative

Meaning
(Of one or more things) available as another possibility or choice.
Example
Finding an alternative to plastic is essential.
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.
C2 verb /ˈædjʊˌleɪt/

adulate

Meaning
to praise or flatter excessively
Example
The fans adulated the actor after his performance.
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.
B1 noun /əˈfer/

Affair

Meaning
an event or situation; a matter that someone deals with
Example
The wedding was a grand affair with hundreds of guests.
C2 noun /əˌbɑː.məˈneɪ.ʃən/

abomination

Meaning
a thing that causes disgust or hatred
Example
Slavery was considered an abomination.
B1 noun /ˈeə.rə.pleɪn/

Aeroplane

Meaning
a powered flying vehicle with fixed wings and a weight greater than that of the air it displaces
Example
The aeroplane took off smoothly from the airport runway.
B1 verb /əˈweɪk/

awake

Meaning
to stop sleeping; to become conscious or alert
Example
I awake every morning at six o'clock.
A2 adverb /əˈhɛd/

ahead

Meaning
in front; in advance; before someone or something in position or progress
Example
She walked ahead of the group.
B2 noun /ˈɑːr.mər/

Armour

Meaning
protective covering worn by soldiers; metal plating for military vehicles
Example
The knight wore heavy armour to protect himself in battle.
B2 verb /əˈweɪkən/

awaken

Meaning
to stop sleeping; to cause to become aware
Example
The loud noise awakened the entire neighborhood.
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.
C2 adjective, adverb /əˈfʊt/

afoot

Meaning
In progress; happening or being prepared.
Example
There are several new projects afoot in the company.
C2 noun /ˌænɪmædˈvɜːʒən/

animadversion

Meaning
Strong criticism or censure.
Example
The policy attracted severe animadversion from the public.
C2 noun /ˈæpəˌlɔːɡ/

apologue

Meaning
a short moral story or fable intended to teach a lesson
Example
The teacher used an old apologue to explain honesty to the children.
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.
B2 adjective /ˈɑːrbɪˌtrɛri/

arbitrary

Meaning
based on random choice or personal whim, rather than reason or system
Example
The teacher's arbitrary grading upset many students.
B2 noun /əˈkʌmplɪʃmənt/

accomplishment

Meaning
something that has been achieved successfully
Example
Graduating from university was a major accomplishment for him.
B2 noun əˈʃɔː.rəns

assurance

Meaning
A positive declaration intended to give confidence; a promise.
Example
Assurance of quality is a priority for the council.
B2 verb /əˈraɪz/

arise

Meaning
to begin to exist or to happen
Example
Problems may arise if you don't plan ahead.
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.
B1 noun /ˈæbsəns/

Absence

Meaning
the state of being away from a place or person; lack or non-existence
Example
His absence from the meeting was noticed by everyone.
C2 noun /ˈæf.ə.rɪ.zəm/

aphorism

Meaning
a short, witty saying that expresses a general truth or principle
Example
He began his speech with an aphorism about life and success.
C1 noun /æbˈstrækʃən/

abstraction

Meaning
the process of forming general ideas by removing specific details; an abstract concept or idea
Example
Abstraction allows complex ideas to be represented in a simplified form.
B1 preposition/adverb /əˈkɔːrdɪŋ/

according

Meaning
As stated by or in agreement with.
Example
According to the report, sales increased last quarter.
C2 noun /æbˈsɪʒən/

abscission

Meaning
The natural detachment of parts of a plant, typically leaves or fruit.
Example
The autumn season is marked by the abscission of leaves from trees.
A2 verb /ədˈmɪt/

admit

Meaning
to confess to be true; to allow entrance; to accept as valid
Example
He had to admit his mistake to the teacher.
A2 noun /ˈæk.ʃənz/

actions

Meaning
The fact or process of doing something, typically to achieve an aim.
Example
Immediate actions are needed for pollution control.
B2 noun /ˈæŋkər/

Anchor

Meaning
a heavy object used to moor a vessel to the sea bottom; a person or thing that provides stability or confidence
Example
The ship dropped its anchor in the harbor.
B1 verb /əˈsuːm/

assume

Meaning
to think that something is true without proof
Example
I assume he will be late to the meeting.
A1 verb /əˈɡriː/

agree

Meaning
to have the same opinion; to consent; to be in harmony
Example
We all agree that the plan is excellent.
B2 noun /ˌæl.əˈkeɪ.ʃən/

allocation

Meaning
The action or process of distributing resources or duties for a particular purpose.
Example
Budget allocation for education must be increased.
B2 adjective /əˈnɒn.ɪ.məs/

Anonymous

Meaning
having an unknown name or identity; nameless
Example
The author published the book under an anonymous pseudonym.
C2 noun /ˈɔːldər/

alder

Meaning
A type of tree from the birch family that typically grows in wet ground and has simple, serrated leaves.
Example
The alder trees grew thick along the riverbank.
B2 adjective /ænˈdʒelɪk/

angelic

Meaning
Like or characteristic of an angel; pure, kind, or innocent.
Example
The child had an angelic smile.
B1 noun/verb /əˈwɔːrd/

award

Meaning
a prize or recognition given for an achievement; to give a prize or recognition
Example
She received an award for her outstanding performance.
B2 noun ədˈvɜː.sɪ.ti

adversity

Meaning
Difficulties; misfortune; a difficult or unpleasant situation.
Example
He remained strong in the face of adversity.
C2 noun /ˌædʒʊˈreɪʃən/

adjuration

Meaning
a solemn urging or appeal
Example
The priest made an adjuration for peace and unity.
C1 verb /əbˈzɒlv/

absolve

Meaning
to free someone from blame, guilt, or responsibility; to pardon
Example
The priest absolved him of his sins.
C2 adjective ˌeə.rəʊˈstæt.ɪk

aerostatic

Meaning
Relating to or involving gases (especially air) in equilibrium and the equilibrium of balloons or aircraft under the influence of such gases.
Example
Aerostatic designs ensure stability at high altitudes.
B2 adjective /əˈvɔɪdəbl/

avoidable

Meaning
able to be prevented or avoided
Example
Most of the damage was avoidable with proper planning.
C2 adjective /əˈsɜːrbɪk/

acerbic

Meaning
sharp, harsh, or bitter in tone or taste
Example
His acerbic comments offended many people in the meeting.
C2 adjective /ˌævəˈrɪʃəs/

avaricious

Meaning
having or showing extreme greed for wealth or material gain
Example
The avaricious landlord increased the rent unfairly.
C1 noun /ˈæpəθi/

apathy

Meaning
a lack of interest, enthusiasm, or concern
Example
The students showed apathy towards the new rules.
C2 noun /əˈpɜːrtənəns/

appurtenance

Meaning
an accessory or supplementary part of something
Example
The garage is an appurtenance of the main house.
B2 adjective; verb (past/participle) /əˈʃʊrd/

assured

Meaning
confident and certain; guaranteed or made certain
Example
She felt assured that everything would work out.
A2 adjective, adverb, interjection /ɔːlˈraɪt/

alright

Meaning
satisfactory or acceptable; safe or unharmed; used to express agreement or acknowledgment
Example
Everything is going to be alright.
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.
C2 noun /əˈkriːʃən/

accretion

Meaning
The process of growth or increase, typically by the gradual accumulation of additional layers or matter.
Example
The accretion of wealth allowed him to invest in various projects.
B2 noun /ˈæd.və.kət/

Advocate

Meaning
a lawyer who represents clients in court; a person who supports or argues for a cause or policy
Example
The advocate presented strong evidence to defend his client in court.
C1 adjective /ænˈtɪriər/

anterior

Meaning
Situated at or toward the front; coming before in position or time.
Example
The anterior part of the brain controls logical thinking.
C2 noun ˌæɡ.roʊˈiː.koʊˌsɪs.təm

agroecosystem

Meaning
An ecological system centered on agricultural activities and processes.
Example
A healthy agroecosystem improves soil fertility.
C2 adjective /əˈsiːtɪk/

acetic

Meaning
relating to or containing acetic acid; sour or vinegary in taste or smell
Example
The acetic smell of vinegar filled the kitchen.
C2 adjective /əˌnækrəˈnɪstɪk/

anachronistic

Meaning
belonging to a period other than that being portrayed; old-fashioned or outdated
Example
His views on gender roles are considered anachronistic.
B1 noun/adjective /ˌæfrɪkən əˈmɛrɪkən/

african-american

Meaning
A person of African descent living in or originating from the United States; relating to such people.
Example
She is proud of her African-American heritage.
C1 noun /ˌædəˈreɪʃən/

adoration

Meaning
deep love and respect; worship
Example
The fans showed their adoration for the singer.
C2 noun /əˈpɒθəˌkɛri/

apothecary

Meaning
A historical term for a person who prepared and sold medicines and drugs.
Example
The village apothecary provided remedies for many common illnesses.
B2 verb /əˈveɪl/

avail

Meaning
to make use of something; to be of use or benefit
Example
You should avail yourself of this opportunity.
A2 adverb /əˈbrɔːd/

Abroad

Meaning
in or to a foreign country
Example
She decided to study abroad for a year.
C2 noun /ˈæpəplɛksi/

apoplexy

Meaning
A sudden loss of consciousness or control due to stroke or extreme anger.
Example
The old man nearly had apoplexy when he heard the shocking news.
C2 verb /əˈniːl/

anneal

Meaning
To heat and cool metal or glass to make it stronger or less brittle.
Example
The blacksmith annealed the steel to improve its durability.
C2 adjective /ɔːˈrɪkjʊlər/

auricular

Meaning
Relating to the ear or hearing.
Example
The doctor used an auricular thermometer to check the patient's temperature.
B2 adjective /əˈtʃiːvəbl/

achievable

Meaning
Able to be brought about or reached successfully.
Example
Start with achievable steps to stay motivated.
B1 noun /əˈtæʧmənt/

attachment

Meaning
a strong feeling of affection or connection
Example
The attachment he felt to his hometown was undeniable.
B2 noun /æʃ/

ash

Meaning
the powdery residue left after the burning of a substance
Example
After the fire, only ash remained of the house.
B2 adverb /əˈproʊpriətli/

appropriately

Meaning
in a way that is suitable or proper for a particular situation
Example
She was dressed appropriately for the event.
A1 interjection /ɑː/

ah

Meaning
used to express realization, surprise, or relief
Example
Ah, now I understand what you mean.
C1 noun ˈæltruɪzəm

altruism

Meaning
The belief in or practice of disinterested and selfless concern for the well-being of others.
Example
His altruism motivated others to volunteer.
C2 adjective /ˌæpəˈplɛktɪk/

apoplectic

Meaning
Extremely angry; furious.
Example
He was apoplectic when he heard about the unfair decision.
B1 adjective, verb /əˈproʊpriət/ (adj), /əˈproʊprieɪt/ (verb)

appropriate

Meaning
suitable or proper in the circumstances (adj); to take something for one’s own use, often without permission (verb)
Example
Wearing formal clothes was appropriate for the ceremony.
B2 noun /ˈæli/

alley

Meaning
a narrow passageway between or behind buildings
Example
They walked through a dark alley to reach the main road.
C1 noun /ˌænɛkˈseɪʃən/

annexation

Meaning
the act of adding or taking control of territory or property, especially by a state
Example
The annexation of the region led to international condemnation.
C2 verb /əˈnɔɪnt/

anoint

Meaning
To smear or rub with oil, often as part of a religious ceremony or as a sign of consecration.
Example
The priest anointed the king with holy oil.
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.
B2 adjective /əˈsɪdɪk/

acidic

Meaning
containing acid; having a sour taste; sharp or biting in tone
Example
The lemon has an acidic taste that makes your mouth pucker.
C2 adjective /əˈkjuː.zəˌtɔːr.i/

accusatory

Meaning
Suggesting blame or indicating someone has done wrong.
Example
He gave her an accusatory glance.
A2 noun /əˈraɪvəl/

Arrival

Meaning
the action or process of arriving; the reaching of a destination
Example
The arrival of the train was delayed by two hours.
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.
C2 noun /ˌæŋɡləˈfoʊbiə/

anglophobia

Meaning
Dislike or fear of England, English people, or English culture.
Example
The politician was accused of promoting Anglophobia in his speeches.
A2 verb /əˈplaɪ/

apply

Meaning
to make a formal request for something; to put into practice
Example
He decided to apply for the scholarship.
B2 noun /əkˈnɒlɪdʒmənt/

acknowledgement

Meaning
the act of recognizing or accepting something as true or valid; an expression of gratitude or recognition
Example
She received an acknowledgement for her contribution to the project.
B2 noun ˌɔː.təˈmeɪ.ʃən

automation

Meaning
Replacing manual work with machines or software.
Example
Automation increases efficiency and reduces errors in production.
C2 verb /ˈæpɪtaɪz/

appetize

Meaning
to stimulate the appetite; to make someone eager or interested
Example
The aroma of fresh bread will appetize the guests before dinner.
C2 adjective /əˈbɪs.əl/

abyssal

Meaning
Related to or characteristic of the deep ocean, especially the zone below 4000 meters.
Example
Abyssal creatures survive in extreme pressure conditions.
C2 noun /əˈpɒstəsi/

apostasy

Meaning
The abandonment or renunciation of a religious or political belief.
Example
His public apostasy shocked his followers.
C2 adjective /ˈæpəzɪt/

apposite

Meaning
highly appropriate or relevant to what is being discussed
Example
Her remark was particularly apposite to the situation.
C2 noun /ˈɛərəˌnɔːt/

aeronaut

Meaning
A person who travels in an airship, balloon, or other aircraft.
Example
The aeronaut skillfully guided the hot-air balloon across the valley.
C2 adjective /ˈæprəbəˌtɔːri/

approbatory

Meaning
expressing approval or praise
Example
The teacher gave an approbatory nod after reading the essay.
B2 adjective, noun /ˈɛəriəl/

aerial

Meaning
As an adjective: existing or happening in the air. As a noun: an antenna for receiving radio or television signals.
Example
The pilot performed an amazing aerial maneuver.
C1 noun /ˈæl.ɪ.moʊ.ni/

alimony

Meaning
financial support that a person is ordered by a court to give to their spouse after separation or divorce
Example
He was ordered by the court to pay monthly alimony to his ex-wife.
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 adjective /əˈθɔːrɪtətɪv/

authoritative

Meaning
Having or showing authority; commanding and self-confident; reliable as a source of information.
Example
She spoke in an authoritative tone that silenced the room.
A2 noun /ˈæmbjʊləns/

ambulance

Meaning
A specially equipped vehicle used to transport sick or injured people to the hospital.
Example
The ambulance rushed to the accident site within minutes.
C1 verb /əˈdʒɔɪn/

adjoin

Meaning
To be next to and joined with something.
Example
Their house adjoins the park.
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.
B2 noun /ˈɑː.mənd/

Almond

Meaning
edible seed of the almond tree
Example
Almonds are a healthy snack rich in protein and good fats.
A2 noun /əˈdɪʃ.ən/

Addition

Meaning
the process of adding numbers; something that is added
Example
The addition of a new room made the house more spacious.
B2 noun /ˈæftərˌlaɪf/

afterlife

Meaning
Life or existence that some believe continues after physical death.
Example
Many cultures have different beliefs about the afterlife.
B1 noun /əˈmjuːzmənt/

Amusement

Meaning
the state or experience of finding something funny; entertainment or recreational activities
Example
The children's laughter showed their amusement at the clown's performance.
C1 noun /əˈkʌmpənɪmənt/

accompaniment

Meaning
Something that goes together with or complements another thing, often music or food.
Example
The dish was served with a spicy sauce as an accompaniment.
B2 verb /əˈspaɪər/

aspire

Meaning
to have a strong desire to achieve something
Example
Many students aspire to study abroad.
B2 adjective /ˈæbsəluːt/

absolute

Meaning
total, complete, or without restriction
Example
The dictator had absolute power over the nation.
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 verb /ədˈmɒnɪʃ/

admonish

Meaning
to warn or reprimand someone firmly; to advise or urge earnestly
Example
The teacher admonished the students for being late.
B1 adjective /ˈeɪn.ʃənt/

Ancient

Meaning
belonging to the very distant past; very old; historical
Example
We visited the ancient ruins of the Roman empire.
A1 adverb /əˈɡoʊ/

ago

Meaning
Used to indicate how long before the present something happened.
Example
I met her two years ago.
B1 adverb /əˈlaʊd/

Aloud

Meaning
in a voice that can be heard; not silently
Example
Please read the instructions aloud so everyone can hear.
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.
B2 noun /əˈnætəmi/

anatomy

Meaning
the study of the structure of living things, especially the human body
Example
She is studying human anatomy at medical school.
B1 noun /əˈpruː.vəl/

approval

Meaning
official permission or agreement for something
Example
The project received government approval.
C2 adjective /əˈluːsɪv/

allusive

Meaning
Making indirect references or hints; suggestive without being explicit.
Example
The novel is full of allusive passages that point to classical literature.
B1 adjective /əkˈsɛptəbəl/

acceptable

Meaning
able to be agreed upon; satisfactory or suitable
Example
Your proposal is acceptable to the committee.
A2 noun /əˈtɛnʃən/

attention

Meaning
the act of focusing on something or someone
Example
The teacher asked for the students' attention.
B1 adverb /ˌɔːtəˈmætɪkli/

automatically

Meaning
without human control or intervention; done by itself
Example
The door closes automatically after you enter.
B2 verb ədˈhɪər

adhere

Meaning
To stick firmly to something or stay attached.
Example
Neutrons adhere to protons.