Informal
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B1 adjective /ɪnˈfɔːrməl/

Informal

Meaning
relaxed and friendly; not official or ceremonial; casual
Example
The meeting was informal and relaxed.
B1 noun ɪmˈpruːv.mənts

improvements

Meaning
The action of making or becoming better; an instance of something becoming or being made better.
Example
Continuous improvements increase productivity.
B1 noun ˈɪn.də.stri

industry

Meaning
Economic activity concerned with the processing of raw materials and manufacture of goods in factories.
Example
The industry focuses on luxury experiences.
B1 adjective ˈɪnəveɪtɪv

innovative

Meaning
Featuring new methods; advanced and original
Example
Innovative strategies are required to combat pollution.
B1 noun ˌɪnspɪˈreɪʃən

inspiration

Meaning
The process of being mentally stimulated to do or feel something, especially to do something creative.
Example
His journey to success became an inspiration for many.
B1 adjective /ɪˈnɪʃəl/

initial

Meaning
Existing or occurring at the beginning.
Example
Her initial reaction was one of surprise.
B1 adjective ˌɪn.dɪˈpen.dənt

independent

Meaning
Not depending on another for livelihood or subsistence; free from outside control; not subject to another's authority.
Example
An independent institution ensures transparency in governance.
B1 verb /aɪˈdentɪfaɪ/

identify

Meaning
to recognize; to establish who someone is
Example
Can you identify the suspect?
B1 adjective /ɪmˈpres.ɪv/

Impressive

Meaning
striking; remarkable; having the ability to impress
Example
Her impressive performance earned her a standing ovation.
B1 noun ˈɪmpækt

impact

Meaning
A strong effect or influence; the action of one object coming forcibly into contact with another.
Example
The decision had great impact.
B1 adjective /ɪnˈvɑːlvd/

involved

Meaning
complicated or engaged in something
Example
She was deeply involved in community service.
B1 verb /ɪnˈfɔ:m/

inform

Meaning
to tell someone about something; to give information
Example
Please inform me when you arrive at the airport.
B1 noun ˌɪndɪˈpendəns

independence

Meaning
The fact or state of being independent; freedom from outside control; not being subject to another's authority.
Example
Independence inspired the movement.
B1 adjective /ˈɪrɪteɪtɪŋ/

irritating

Meaning
causing annoyance, impatience, or mild anger
Example
The constant noise from the street is extremely irritating.
B1 adjective /ɪnˈtɜːrnəl/

internal

Meaning
situated inside; relating to the inside or inner part of something
Example
The company is conducting an internal audit this month.
B1 noun /ɪmˈpruːvmənt/

improvement

Meaning
the act of making something better
Example
There has been a significant improvement in his health.
B1 noun /ˈɪnkʌm/

income

Meaning
money received for work or through investments
Example
His monthly income is enough to support his family.
B1 adverb /ɪnˈkriːsɪŋli/

increasingly

Meaning
more and more over time
Example
People are increasingly concerned about climate change.
B1 verb /ɪnˈvɑːlv/

involve

Meaning
to include as a necessary part, or to engage someone in an activity
Example
The project will involve several departments working together.
B1 noun aɪˈdɛntɪti

identity

Meaning
The fact of being who or what a person or thing is; the characteristics determining who or what a person or thing is.
Example
The day reinforces our national identity.
B1 verb ɪnˈvɛst

invest

Meaning
To put money, effort, time, etc. into something to make a profit or get an advantage.
Example
Investing in intellectual property can generate passive income.
B1 noun /ɪnˈstrʌkʃənz/

instructions

Meaning
Detailed information on how something should be done or operated.
Example
Please follow the instructions on the box.
B1 noun /ɪnˌvɛs.tɪˈɡeɪ.ʃən/

investigation

Meaning
the process of inquiring into or examining something carefully to find the truth
Example
The investigation revealed new evidence about the fraud.
B1 noun /ɪnˈvɛstər/

investor

Meaning
a person or organization that puts money into financial schemes, property, or business ventures with the expectation of achieving a profit
Example
The investor funded the startup with a large sum of money.
B1 noun /ɪnˈstrʌktər/

instructor

Meaning
A person who teaches a subject or skill.
Example
The driving instructor was very patient with new learners.
B1 adjective /ɪmˈpruːvd/

improved

Meaning
made better or enhanced in quality or condition
Example
Her health has significantly improved since last month.
B1 verb /ɪnˈstɔːl/

install

Meaning
To place or fix equipment or software so it is ready for use.
Example
He installed the new software on his computer.
B1 noun /ˌɪntərˈækʃən/

interaction

Meaning
The process of people or things acting upon or influencing each other.
Example
The teacher encouraged more interaction between students.
B1 verb /ɪmˈpɔːrt/

import

Meaning
to bring goods or services into a country from abroad; to transfer data
Example
The country imports oil from abroad.
B1 noun ɪnˈven.ʃən

invention

Meaning
The action of inventing something, typically a process or device.
Example
The invention revolutionized communication.
B1 adjective /aɪˈdiːəl/

ideal

Meaning
the best possible; perfect for a situation
Example
This place is ideal for a picnic.
B1 noun ɪnˈvestmənt

investment

Meaning
The action or process of investing money for profit or material result.
Example
Investment in waste management infrastructure is essential.
B1 adjective /ɪmˈpeɪʃənt/

impatient

Meaning
Not able to wait calmly; restless and eager for something to happen.
Example
She grew impatient while waiting in the long queue.
B1 adjective /ɪˈmiːdiət/

immediate

Meaning
happening or done without delay
Example
The doctor gave her immediate attention.
B1 noun /ˈɪnsɪdənt/

incident

Meaning
an event or occurrence, often unpleasant or unusual
Example
The police quickly responded to the incident in the park.
B1 verb ɪnˈkriːsɪŋ

increasing

Meaning
Becoming or making greater in size, amount, intensity, or degree; growing.
Example
Increasing awareness about education is necessary.
B1 noun /ˈɪn.flu.əns/

Influence

Meaning
the capacity to have an effect on the character, development, or behavior of someone or something
Example
The teacher's positive influence helped the student overcome his learning difficulties.
B1 noun /ɪmˈprɛʃən/

impression

Meaning
an idea, feeling, or opinion about something or someone
Example
The book gave me a good first impression.
B1 adjective ɪnˈdʌs.tri.əl

industrial

Meaning
Relating to or characterized by industry.
Example
Industrial sectors boost exports.
B1 noun ɪˈnɪʃətɪvz

initiatives

Meaning
Actions or strategies designed to resolve a difficulty or improve a situation; programs or projects.
Example
Community initiatives benefit underprivileged groups.
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.
B1 noun ɪˈnɪʃətɪv

initiative

Meaning
An act or strategy intended to resolve a difficulty or improve a situation; a fresh approach to something.
Example
NASA's initiative to return humans to the Moon is ambitious.
B1 noun ɪnˈtel.ɪ.dʒəns

intelligence

Meaning
The ability to learn, understand, and think in a logical way about things
Example
Intelligence is key in AI development.
B1 verb /ɪnˈvɛnt/

invent

Meaning
to create or design something that has not existed before
Example
Thomas Edison invented the electric bulb.
B1 adverb /ɪnˈkrɛdɪbli/

incredibly

Meaning
to a great degree; extremely or unbelievably
Example
The view from the top of the mountain was incredibly beautiful.
B1 adjective /ɪnˈkrɛdəbl/

incredible

Meaning
so extraordinary that it is hard to believe; amazing
Example
The view from the mountain was incredible.
B1 adjective /ɪnkəˈrɛkt/

incorrect

Meaning
not correct or accurate
Example
The information you provided was incorrect.
B1 adjective /ɪˈliː.ɡəl/

illegal

Meaning
Not allowed by law; unlawful.
Example
It is illegal to drive without a valid license.
B1 verb /ɪnˈkriːst/

increased

Meaning
became greater in size, amount, or degree
Example
The company's revenue increased last year.
B1 noun /ɪˌmædʒ.ɪˈneɪ.ʃən/

Imagination

Meaning
the faculty or action of forming new ideas or images not present to the senses; creative thinking
Example
Children's imagination allows them to turn a cardboard box into a spaceship or castle.
B1 adjective /ˌɪnɪkˈspɛnsɪv/

Inexpensive

Meaning
not costing a lot of money; affordable; budget-friendly
Example
This restaurant offers delicious and inexpensive meals for students.
B1 noun /ɪnˈtɛnʃən/

intention

Meaning
A plan, aim, or purpose behind an action.
Example
Her intention was to finish the project before the deadline.
B1 verb /ɪmˈprɛs/

impress

Meaning
to cause someone to feel admiration or respect
Example
Her speech managed to impress the audience.
B1 noun/adjective /ˈɪnstənt/

instant

Meaning
A very short period of time; happening immediately.
Example
He replied in an instant without hesitation.
B1 adjective /ˈɪnəsənt/

Innocent

Meaning
free from guilt or sin; pure; harmless; naive
Example
The innocent child had no idea that her parents were planning a surprise party.
B1 adjective /ˌɪmpəˈlaɪt/

impolite

Meaning
Not showing good manners; rude.
Example
It is impolite to interrupt someone while they are speaking.
B1 adverb /ɪˈnɪʃəli/

initially

Meaning
At the beginning; at first.
Example
Initially, he refused the offer but later accepted it.
B1 verb ˈɪndɪkeɪts

indicates

Meaning
Point out; show; be a sign or symptom of; suggest as a desirable or necessary course of action.
Example
The rising trend indicates an urgent need for action.
B1 noun /ˈɪnstrəmənt/

instrument

Meaning
A tool or device used for a particular purpose, especially for scientific or musical work.
Example
The doctor used a special instrument during the surgery.
B1 verb /ˈɪndɪkeɪt/

indicate

Meaning
to point out; to show or suggest; to be a sign of
Example
The red light indicates that you should stop.
B1 verb /ɪnˈsɪst/

insist

Meaning
to demand firmly; to state persistently
Example
He insisted on paying the bill.
B1 adverb /ˈɪnstəntli/

instantly

Meaning
immediately, without any delay
Example
He replied instantly to the message.
B1 verb /ˌɪntəˈrʌpt/

interrupt

Meaning
to stop someone from speaking or doing something by suddenly saying or doing something
Example
She tried not to interrupt while he was speaking.
B1 adjective /ˈɪnər/

inner

Meaning
Located inside or closer to the center; relating to one’s thoughts or feelings.
Example
She shared her inner thoughts with her best friend.
B1 abbreviation /ˌaɪˈiː/

ie

Meaning
That is to say; used to clarify or explain something more precisely.
Example
Many amphibians, i.e., frogs and salamanders, can live both in water and on land.
B1 verb /ˈɪndʒər/

injure

Meaning
to cause physical harm or damage to someone or something
Example
He injured his leg while playing football.
B1 verb /ɪnˈtend/

intend

Meaning
to plan or have in mind as a purpose; to mean
Example
I intend to finish this project by tomorrow.
B1 noun ˌɪn.stɪˈtjuː.ʃən

institution

Meaning
An organization founded and united for a specific purpose; an established law, practice, or custom.
Example
Institutions play a crucial role in governance.
B1 verb /ˌɪntərˈækt/

interact

Meaning
to communicate or work together with someone or something
Example
Students interact with teachers during class discussions.
B1 verb ɪnˈspaɪər

inspire

Meaning
To fill someone with the urge or ability to do or feel something, especially creative or noble.
Example
Artemis seeks to inspire future generations.
B1 noun /ˈɪnstəns/

instance

Meaning
An example or single occurrence of something.
Example
This is just one instance of his generosity.
B1 noun /ɪnˈʃʊərəns/

insurance

Meaning
An arrangement by which a company provides compensation for loss, damage, or illness in return for a premium.
Example
He bought health insurance to cover medical expenses.
B1 noun /ˈɪnpʊt/

input

Meaning
information, advice, or data that is put into a system, device, or process
Example
The manager asked for everyone's input on the new project.
B1 noun /ɪnˈstrʌkʃən/

instruction

Meaning
Detailed information telling how something should be done or operated.
Example
Please read the instruction carefully before using the machine.
B1 verb /ɪnˈvɛs.tɪ.ɡeɪt/

investigate

Meaning
to carry out a systematic inquiry to discover facts or information
Example
The police will investigate the incident thoroughly.