inhabit
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B2 verb /ɪnˈhæbɪt/

inhabit

Meaning
to live in; to occupy as a dwelling
Example
Many animals inhabit the forest.
B2 noun, verb /ˈɪnstɪˌtjuːt/

institute

Meaning
as a noun, an organization founded for a specific purpose; as a verb, to establish or initiate
Example
The university decided to institute new rules for the library.
B2 noun ˌɪr.ɪˈɡeɪ.ʃən

irrigation

Meaning
The artificial application of water to land or soil.
Example
Irrigation systems improve crop yields in dry regions.
B2 adjective /ˌɪnsəˈfɪʃənt/

insufficient

Meaning
Not enough; inadequate.
Example
His explanation was insufficient to clear the confusion.
B2 noun /ɪnˈveɪʒən/

invasion

Meaning
An instance of invading a country, region, or personal space with armed force or unwelcome presence.
Example
The army prepared for the possibility of an invasion.
B2 adjective /ɪˈmædʒ.ɪ.nər.i/

Imaginary

Meaning
existing only in imagination; not real; fictional
Example
The child had an imaginary friend who she talked to every day.
B2 adjective /ɪnˈkluːsɪv/

inclusive

Meaning
Including all the services, facilities, or items normally expected or required; not excluding any section of society or any party involved.
Example
Inclusive growth benefits all sections of society.
B2 adjective ˈaɪsəˌleɪtɪd

isolated

Meaning
Alone or separated from others; having little or no contact with other people.
Example
Technological advancements often leave people isolated.
B2 adjective aɪˈkɒnɪk

iconic

Meaning
Very famous or popular, especially being considered to represent particular opinions or a particular time.
Example
The line "It was the best of times..." is iconic.
B2 adjective ˌɪnɪˈfɛktɪv

ineffective

Meaning
Not producing any significant or desired effect; not achieving the intended result.
Example
Rote learning often proves to be ineffective.
B2 noun /ɪnˈventər/

inventor

Meaning
a person who creates or designs something new, especially a device, method, or process
Example
The inventor patented her new medical device.
B2 adjective /ɪnˈækjərət/

Inaccurate

Meaning
not correct; containing errors; wrong
Example
The weather forecast was inaccurate yesterday.
B2 verb /ɪnˈfɜːr/

infer

Meaning
to conclude or deduce something from evidence and reasoning rather than from explicit statements
Example
From his silence, I inferred that he was not happy with the decision.
B2 adjective /aɪˈdentɪkəl/

Identical

Meaning
exactly the same; not different in any way
Example
The twins look completely identical to each other.
B2 noun ˌɪntəˈlektʃuəlz

intellectuals

Meaning
People possessing a highly developed intellect; scholars or academics.
Example
Intellectuals protested against the dominance.
B2 verb /ɪtʃ/

itch

Meaning
to feel an urge to scratch; to have a restless desire
Example
My skin itches from the mosquito bites.
B2 adjective /ɪnˈsɛnsətɪv/

insensitive

Meaning
Showing or feeling no concern for others' feelings.
Example
His insensitive comment hurt her deeply.
B2 adjective /ɪˈlɪt.ər.ət/

Illiterate

Meaning
unable to read or write; lacking education
Example
The program aims to help illiterate adults learn to read and write.
B2 noun /ˈɪn.flu.ən.sər/

Influencer

Meaning
A person with the ability to influence potential buyers of a product or service by promoting or recommending the items on social media.
Example
Social media influencers shape consumer preferences.
B2 noun /ɪnˈsen.tɪv/

Incentive

Meaning
a thing that motivates or encourages someone to do something; a reward or penalty that influences behavior
Example
The company offered a cash incentive to employees who exceeded their sales targets.
B2 noun /ˌɪnəˈbɪləti/

inability

Meaning
the state of being unable to do something
Example
His inability to make decisions affected his career.
B2 adverb /ɪnˈɛvɪtəbli/

inevitably

Meaning
in a way that cannot be avoided or prevented
Example
Inevitably, the team faced challenges during the project.
B2 noun /ˈɪnvənˌtɔːri/

inventory

Meaning
A complete list of items, such as goods in stock or property.
Example
The shopkeeper checked the inventory before opening the store.
B2 adverb /aɪˈrɒnɪkli/

ironically

Meaning
in a way that is contrary to what is expected or intended
Example
Ironically, the fire station burned down.
B2 noun /ˌɪnsɪˈkjʊərɪti/

insecurity

Meaning
lack of confidence or assurance; a state of uncertainty or vulnerability
Example
Her insecurity made her doubt her abilities despite her experience.
B2 verb /ɪnˈsʌlt/

insult

Meaning
to speak or act in a way that hurts someone's feelings or shows disrespect
Example
He felt insulted by her rude comments.
B2 noun /ˈɪmɪɡrənt/

immigrant

Meaning
a person who comes to live permanently in a foreign country
Example
The city has welcomed many new immigrants this year.
B2 adjective /ɪnˈfekʃəs/

infectious

Meaning
capable of causing infection or disease; spreading easily from one person to another; able to spread feelings or attitudes such as enthusiasm
Example
Her infectious laughter made everyone in the room smile.
B2 verb /ɪnˈfɛkt/

infect

Meaning
To contaminate with a disease-causing organism.
Example
The virus can infect healthy people quickly.
B2 noun /ɪnˈkluːʒən/

inclusion

Meaning
the action or state of including or being included within a group or structure
Example
Diversity and inclusion are key values in modern workplaces.
B2 noun ɪnˈtɛɡrɪti

integrity

Meaning
The quality of being honest and having strong moral principles; moral uprightness.
Example
Teachers' integrity fosters a positive learning environment.
B2 adjective /ˈɪmpæktfʊl/

impactful

Meaning
Having a major impact or effect; powerful and forceful.
Example
Her impactful speech moved the audience to take action.
B2 noun /ˈɪm.pʌls/

Impulse

Meaning
a sudden strong and unreflective urge or desire to act; a driving force or motivation
Example
She bought the expensive dress on impulse and later regretted the purchase.
B2 noun /ˌaɪ.səˈleɪ.ʃən/

Isolation

Meaning
the process or fact of isolating or being isolated; separation from other people or things
Example
The patient was kept in isolation to prevent the spread of the infectious disease.
B2 verb /ˌɪntərˈfɪər/

interfere

Meaning
to become involved in something that is not your concern; to hinder or obstruct
Example
Parents should not interfere in their children’s personal choices.
B2 adjective /ɪnˈvɪz.ə.bəl/

Invisible

Meaning
unable to be seen; not visible to the eye
Example
The bacteria are invisible without a microscope.
B2 adjective /ˌɪnkənˈviːniənt/

Inconvenient

Meaning
causing trouble, difficulties, or discomfort; awkward; troublesome
Example
The broken elevator made it inconvenient to reach the top floor.
B2 adjective /ˌɪnsɪˈkjʊə/

insecure

Meaning
not confident or assured; uncertain and anxious
Example
She felt insecure about her performance in the exam.
B2 noun ɪˈlɪtərəsi

illiteracy

Meaning
The inability to read and write; lack of education or knowledge in a particular area.
Example
Illiteracy often leads to poverty and unemployment.
B2 adjective /ˌɪrɪˈzɪstəbəl/

Irresistible

Meaning
too attractive and tempting to be resisted; impossible to resist
Example
The chocolate cake was absolutely irresistible.
B2 verb /ˈɪmɪteɪt/

imitate

Meaning
to copy the behavior or manner of someone or something
Example
Children often imitate their parents' behavior.
B2 adjective + noun aɪˈdiːəl ɪnˈvaɪrənmənt

ideal environment

Meaning
Perfect or most suitable conditions for growth or development
Example
Winter creates an ideal environment for vegetable growth.
B2 noun /ˌɪnstəˈbɪləti/

instability

Meaning
lack of stability or balance; tendency to change, fail, or collapse easily
Example
Political instability has slowed economic growth in the region.
B2 adjective /ɪmˈprɒp.ər/

Improper

Meaning
inappropriate; incorrect; not suitable
Example
It would be improper to discuss personal matters in a business meeting.
B2 noun /ˈaɪkɒn/

icon

Meaning
A person or thing regarded as a symbol of something, or a graphic symbol on a screen.
Example
The singer became a cultural icon.
B2 verb /ɪnˈflɪkt/

inflict

Meaning
to cause something unpleasant or painful to be suffered by someone or something
Example
The storm inflicted considerable damage to the city.
B2 verb /ɪnˈspekt/

inspect

Meaning
to examine something carefully to check for problems or faults
Example
The engineer will inspect the building for structural damage.
B2 noun ɪnˈsɛntɪvz

incentives

Meaning
Things that motivate or encourage one to do something.
Example
Tax incentives are used to encourage investment in renewable energy.
B2 adjective /ɪnˈtɒlərənt/

intolerant

Meaning
unwilling to accept or respect beliefs or behavior different from one's own
Example
He is intolerant of any opinion that differs from his own.
B2 adjective /aɪˈrɒnɪk/

ironic

Meaning
happening in the opposite way to what is expected, often amusing or sarcastic
Example
It is ironic that the fire station burned down.
B2 verb /ɪnˈdʒɛkt/

inject

Meaning
To introduce a substance, especially a drug, into the body using a needle.
Example
The nurse will inject the vaccine into the patient's arm.
B2 verb /ˈɪl.ə.streɪt/

illustrate

Meaning
to explain or make something clear by using examples, pictures, or comparisons
Example
The teacher used diagrams to illustrate the concept.
B2 verb ɪmˈpoʊz

imposes

Meaning
To establish or apply by authority; to force something unwelcome or unfamiliar to be accepted or put in place.
Example
Pollution imposes harmful effects on the environment.
B2 verb ɪnˈvɛst.ɪŋ

investing

Meaning
The act of putting money into financial schemes, shares, property, or a commercial venture with the expectation of achieving a profit.
Example
Investing in stocks can generate long-term wealth.
B2 adjective /ɪmˈpɪəriəl/

imperial

Meaning
Relating to an empire or emperor; having supreme authority.
Example
The imperial palace was a symbol of the emperor's power.
B2 verb /ɪnˈtɜːrprət/

interpret

Meaning
to explain the meaning of something; to translate orally
Example
She had to interpret the speech for the foreign guests.
B2 adjective /ˈɪɡ.nər.ənt/

Ignorant

Meaning
lacking knowledge or awareness; uninformed
Example
She was ignorant about the new technology trends.
B2 noun /ˌɪntərˈfɪərəns/

interference

Meaning
the action of interfering with something
Example
The radio signal was disrupted due to interference from nearby electronics.
B2 noun /aɪˈdiː/

id

Meaning
identification; a document or number used to prove who someone is
Example
Please show your ID at the entrance.
B2 adjective /ɪmˈplɪsɪt/

implicit

Meaning
Suggested or understood without being directly stated.
Example
Her trust in him was implicit.
B2 adjective /ˌɪn.trəˈdʌk.tər.i/

introductory

Meaning
Serving as an introduction; preliminary or preparatory.
Example
The professor gave an introductory lecture on economics.
B2 noun ɪnˈdʒʌstɪs

injustice

Meaning
Lack of fairness or justice; the practice of being unjust or unfair.
Example
The story portrays the injustices faced by the common people.
B2 adjective /ˌɪd.iˈɒt.ɪk/

Idiotic

Meaning
extremely stupid; foolish; senseless
Example
His idiotic behavior embarrassed everyone at the meeting.
B2 noun /ˌɪmpərˈfɛkʃən/

imperfection

Meaning
a flaw, defect, or weakness; the state of being imperfect
Example
She accepted her imperfection as part of being human.
B2 verb ˈɪmplɪment

implement

Meaning
To put a decision or plan into effect; to execute or apply.
Example
Implementing educational policies is essential for progress.
B2 noun ɪnˈfleɪʃən

inflation

Meaning
A general increase in prices and fall in the purchasing value of money.
Example
Inflation erodes the purchasing power of consumers.
B2 adjective /ˈɪnˌsaɪtfəl/

insightful

Meaning
Showing deep understanding or perceptiveness.
Example
The professor gave an insightful lecture on global economics.
B2 noun /ˈɪnˌteɪk/

intake

Meaning
the process of taking something in, especially food or drink
Example
He monitored his daily intake of calories to maintain a healthy diet.
B2 adjective ˈɪn.tɪ.ɡrəl

integral

Meaning
Necessary to make a complete whole; essential or fundamental.
Example
Exercise is an integral part of a healthy lifestyle.
B2 adjective, noun /ˌɪn.təlˈɛk.tʃu.əl/

intellectual

Meaning
Relating to the intellect; a person who engages in critical thinking and study.
Example
She enjoys intellectual discussions about philosophy.
B2 noun ˈɪndɪkeɪtə

indicator

Meaning
A thing that indicates the state or level of something.
Example
The unemployment rate is a key indicator of economic health.
B2 noun /ɪnˈvɛstɪˌɡeɪtər/

investigator

Meaning
a person who carries out a formal inquiry or investigation
Example
The investigator gathered evidence from the crime scene.
B2 verb /ɪnˈkwaɪər/

inquire

Meaning
to ask; to investigate
Example
She inquired about the job opening.
B2 noun ˈɪnər strɛŋkθ

inner strength

Meaning
Mental or spiritual power that helps a person cope with difficulties.
Example
Community service fosters inner strength in individuals.
B2 adjective /ˈɪnfɪnɪt/

infinite

Meaning
limitless or endless in space, extent, or number
Example
The universe is often described as infinite.
B2 adverb /ɪmˈpeɪʃəntli/

impatiently

Meaning
in a manner showing annoyance or restlessness due to delay or waiting
Example
She tapped her fingers impatiently while waiting for the reply.
B2 adjective /ɪˈmædʒɪnəbl/

imaginable

Meaning
Capable of being imagined or conceived.
Example
They offered every imaginable type of food at the festival.
B2 adjective ˌɪnstrəˈmɛntl

instrumental

Meaning
Serving as a crucial means, agent, or tool; having a part in bringing about a result.
Example
Children can be instrumental in building a better society.
B2 adjective ɪnˈdɪdʒɪnəs

indigenous

Meaning
Originating or occurring naturally in a particular place; native.
Example
Indigenous plants are well adapted to the local environment.
B2 noun /ɪmˈpeɪʃəns/

impatience

Meaning
The state of being quickly irritated or unable to wait calmly.
Example
His impatience grew as the meeting dragged on.
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.
B2 verb /ɪnˈveɪd/

invade

Meaning
to enter a place or country forcefully, especially as an enemy
Example
The army invaded the neighboring country.
B2 noun ˌɪn.fləˈmeɪ.ʃən

inflammation

Meaning
A localized physical condition in which part of the body becomes reddened, swollen, hot, and often painful.
Example
Chronic inflammation can lead to severe diseases.
B2 noun ɪnˌdʌstrɪəlaɪˈzeɪʃən

industrialization

Meaning
The development of industries in a country or region on a wide scale.
Example
Industrialization changed the global economy dramatically.
B2 adjective /ɪnˈtɛns/

intense

Meaning
Of extreme force, degree, or strength.
Example
She felt intense pain after the accident.
B2 noun ˌɪn.təˈven.ʃən

intervention

Meaning
The action or process of intervening; involvement in a situation to improve or help it.
Example
The intervention of the UN was crucial in resolving the conflict.
B2 adjective /ˌɪntəˈpɜːsənl/

interpersonal

Meaning
Relating to relationships or communication between people.
Example
He has excellent interpersonal skills and gets along well with others.
B2 noun /ˈɪnstɪŋkt/

instinct

Meaning
A natural way of behaving or reacting that does not require learning.
Example
Birds build nests by instinct.
B2 verb /ɪnˈkɔːrpəreɪt/

incorporate

Meaning
to include something as part of a whole; to form a corporation
Example
The new design incorporates advanced technology.
B2 noun /ɪmˈpɒlɪtnəs/

impoliteness

Meaning
lack of good manners or courtesy; rude behavior
Example
His impoliteness towards the guests shocked everyone.
B2 verb /ɪnˈʃʊər/

insure

Meaning
to provide insurance; to make certain
Example
I need to insure my new car.
B2 noun ɪˈmjuː.nɪ.ti

immunity

Meaning
The ability of an organism to resist a particular infection or toxin by the action of specific antibodies.
Example
A strong immunity protects against infections.
B2 noun, verb /ˌɪnkənˈviːniəns/

inconvenience

Meaning
trouble or difficulty caused to someone; to cause trouble or difficulty to someone
Example
We apologize for any inconvenience caused by the delay.
B2 verb /ˌɪntərˈviːn/

intervene

Meaning
To come between people, groups, or events, often to prevent conflict or improve a situation.
Example
The teacher had to intervene to stop the fight between the students.
B2 verb /ɪnˈstrʌkt/

instruct

Meaning
to teach; to give directions
Example
The teacher instructed the students carefully.
B2 noun /ˈɪntərfeɪs/

interface

Meaning
a point where two systems, subjects, or organizations meet and interact
Example
The user interface is designed to be intuitive and user-friendly.
B2 noun /ˈɪnˌsaɪt/

insight

Meaning
The ability to understand the true nature of something; deep understanding.
Example
Her insight into human behavior made her a successful psychologist.
B2 adjective, noun /ɪzˈreɪli/

israeli

Meaning
relating to Israel or its people; a person from Israel
Example
She works for an Israeli company.
B2 noun /ɪnˈfek.ʃən/

Infection

Meaning
the process of infecting or the state of being infected; a disease caused by germs
Example
The doctor prescribed antibiotics to treat the bacterial infection in her throat.
B2 noun /ɪnˈkwaɪəri/ or /ˈɪnkwəri/

inquiry

Meaning
An act of asking for information; an investigation into something.
Example
The committee launched an inquiry into the financial irregularities.
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.
B2 adjective /ˌɪnəˈproʊpriət/

inappropriate

Meaning
not suitable or proper in the circumstances
Example
It was inappropriate to talk loudly in the library.
B2 verb /ɪnˈtriːɡ/

intrigue

Meaning
to arouse curiosity or interest; to make someone fascinated
Example
The mystery novel will intrigue any reader.
B2 verb /ɪmˈplaɪ/

imply

Meaning
To suggest something without directly stating it.
Example
Her tone seemed to imply that she was upset.
B2 verb ˈɪmplɪmentɪd

implemented

Meaning
Put a decision or plan into effect; carried out or executed.
Example
The master plans were partially implemented.
B2 adjective /ɪnˈseɪn/

insane

Meaning
mentally ill; extremely foolish or unreasonable
Example
The idea of jumping off the cliff seemed insane.
B2 verb /ɪnˈheɪl/

inhale

Meaning
to breathe in; to draw air into the lungs
Example
Take a deep breath and inhale slowly.
B2 adjective /ɪnˈstrʌkʃənəl/

instructional

Meaning
providing knowledge or information; intended to teach
Example
The website offers many instructional videos for beginners.
B2 verb /ˈɪntɪɡreɪt/

integrate

Meaning
To combine or bring together into a unified whole.
Example
The new system integrates data from multiple sources.
B2 noun /ˌɪntəˈrʌpʃən/

interruption

Meaning
the act of stopping or breaking the continuity of something; a pause caused by an external action
Example
The meeting was delayed due to an unexpected interruption.
B2 verb /ɪmˈprɪzən/

imprison

Meaning
to put someone in prison; to confine or restrict someone's freedom
Example
The judge imprisoned the criminal for five years.
B2 noun ˌɪm.plɪˈkeɪ.ʃən

implication

Meaning
A conclusion that can be drawn from something although it is not explicitly stated; a likely consequence.
Example
The implication of climate change is severe.
B2 noun ˈɪn.deks

index

Meaning
An alphabetical list of names, subjects, etc. with references to the places where they occur, typically found at the end of a book; a sign or measure of something.
Example
An index organizes critical data.
B2 adjective ɪnˈev.ɪ.tə.bəl

inevitable

Meaning
Certain to happen; unavoidable.
Example
Death is an inevitable part of life.
B2 adjective /ɪˈmɒrəl/

immoral

Meaning
Not conforming to accepted standards of morality; unethical or wicked.
Example
He was fired for his immoral behavior.
B2 adjective /ˈɪn.tɪ.mət/

Intimate

Meaning
close in friendship; private and personal; detailed knowledge
Example
They have an intimate friendship that has lasted for decades.
B2 noun /ˌɪn.dɪˈkeɪ.ʃən/

Indication

Meaning
a sign or piece of information that indicates something; a suggestion or hint
Example
The dark clouds were a clear indication that a storm was approaching the area.
B2 adjective /ɪmˈper.ə.tɪv/

imperative

Meaning
Of vital importance; crucial; giving or expressing a command.
Example
It is imperative to address the climate crisis immediately.
B2 noun /ɪnˈvɒlvmənt/

involvement

Meaning
the act of taking part in something
Example
His involvement in the project was crucial.
B2 noun /ˈɪntərvəl/

interval

Meaning
a period of time between two events or points; a pause or break in activity
Example
There was a short interval between the two performances.
B2 verb /ˈɪmɪɡreɪt/

immigrate

Meaning
to come to live permanently in a foreign country
Example
He immigrated to Canada five years ago.