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B2 noun /ɪnˈfɪnɪti/

infinity

infini
Meaning
A concept describing something without any limit or end.
Example
The universe seems to stretch into infinity.
L'univers semble s'étendre à l'infini.
B2 noun ˈɪnər strɛŋkθ

inner strength

force intérieure
Meaning
Mental or spiritual power that helps a person cope with difficulties.
Example
Community service fosters inner strength in individuals.
Le service communautaire favorise la force intérieure chez les individus.
B2 adjective /ˌɪntəˈpɜːsənl/

interpersonal

interpersonnel
Meaning
Relating to relationships or communication between people.
Example
He has excellent interpersonal skills and gets along well with others.
Il a d'excellentes compétences interpersonnelles et s'entend bien avec les autres.
B2 verb /ɪnˈstrʌkt/

instruct

instruire
Meaning
to teach; to give directions
Example
The teacher instructed the students carefully.
L'enseignant a instruit les élèves avec soin.
B2 verb /ɪnˈfɛkt/

infect

infecter
Meaning
To contaminate with a disease-causing organism.
Example
The virus can infect healthy people quickly.
Le virus peut infecter rapidement les personnes en bonne santé.
B2 adjective /ɪˈmædʒɪnəbl/

imaginable

imaginable
Meaning
Capable of being imagined or conceived.
Example
They offered every imaginable type of food at the festival.
Ils ont proposé tous les types de nourriture imaginables au festival.
B2 adjective /ˌɪnkəmˈpliːt/

incomplete

incomplet
Meaning
Not finished, lacking some parts or not whole.
Example
Her report was incomplete and needed further details.
Son rapport était incomplet et nécessitait des détails supplémentaires.
B2 noun /ˌɪn.dɪˈkeɪ.ʃən/

Indication

indication; signe
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.
Les nuages sombres étaient une indication claire qu'une tempête approchait de la région.
B2 verb ɪnˈvɛst.ɪŋ

investing

investir
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.
Investir dans des actions peut générer de la richesse à long terme.
B2 noun /ɪnˈventər/

inventor

inventeur
Meaning
a person who creates or designs something new, especially a device, method, or process
Example
The inventor patented her new medical device.
L’inventeur a breveté son nouveau dispositif médical.
B2 adjective /ˈɪn.tɪ.mət/

Intimate

intime; proche; privé
Meaning
close in friendship; private and personal; detailed knowledge
Example
They have an intimate friendship that has lasted for decades.
Ils ont une amitié intime qui dure depuis des décennies.
B2 adjective /ˌɪnsɪˈkjʊə/

insecure

insécuritaire
Meaning
not confident or assured; uncertain and anxious
Example
She felt insecure about her performance in the exam.
Elle se sentait insécure par rapport à sa performance dans l'examen.
B2 verb /ɪnˈtɛnsɪfaɪ/

intensify

intensifier
Meaning
To make something stronger, more extreme, or more forceful.
Example
The storm is expected to intensify overnight.
On s'attend à ce que la tempête s'intensifie pendant la nuit.
B2 adjective /ɪnˈklaɪnd/

inclined

incliné
Meaning
having a tendency or disposition toward something
Example
He is inclined to help those in need.
Il est enclin à aider ceux qui sont dans le besoin.
B2 verb /ɪnˈdʒɛkt/

inject

injecter
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.
L'infirmière injectera le vaccin dans le bras du patient.
B2 noun /ˌɪntərˈfɪərəns/

interference

interférence
Meaning
the action of interfering with something
Example
The radio signal was disrupted due to interference from nearby electronics.
Le signal radio a été perturbé en raison de l'interférence des appareils électroniques à proximité.
B2 noun /ˈɪm.pʌls/

Impulse

impulsion; désir soudain
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.
Elle a acheté la robe chère sur un coup de tête et a ensuite regretté l'achat.
B2 verb /ɪnˈfɜːr/

infer

inférer
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.
De son silence, j'ai inféré qu'il n'était pas content de la décision.
B2 noun /aɪˈdiː/

id

pièce d'identité
Meaning
identification; a document or number used to prove who someone is
Example
Please show your ID at the entrance.
Veuillez montrer votre pièce d'identité à l'entrée.
B2 noun /ɪnˈkluːʒən/

inclusion

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.
La diversité et l'inclusion sont des valeurs clés dans les lieux de travail modernes.
B2 adjective /ˈɪnˌsaɪtfəl/

insightful

perspicace
Meaning
Showing deep understanding or perceptiveness.
Example
The professor gave an insightful lecture on global economics.
Le professeur a donné une conférence perspicace sur l'économie mondiale.
B2 noun /ˈaɪkɒn/

icon

icône, symbole
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.
Le chanteur est devenu une icône culturelle.
B2 verb /ɪnˈkwaɪər/

inquire

demander
Meaning
to ask; to investigate
Example
She inquired about the job opening.
Elle a demandé des informations sur l'offre d'emploi.
B2 noun /ɪnˈsaɪdə/

insider

initié
Meaning
a person within a group or organization who has access to confidential information
Example
He was an insider who knew all the company's secrets.
Il était un initié qui connaissait tous les secrets de l'entreprise.
B2 adjective /ˌɪnkənˈviːniənt/

Inconvenient

inconfortable; gênant; problématique
Meaning
causing trouble, difficulties, or discomfort; awkward; troublesome
Example
The broken elevator made it inconvenient to reach the top floor.
L'ascenseur cassé a rendu l'accès au dernier étage inconfortable.
B2 verb ˈɪmplɪmentɪd

implemented

mis en œuvre
Meaning
Put a decision or plan into effect; carried out or executed.
Example
The master plans were partially implemented.
Les plans principaux ont été partiellement mis en œuvre.
B2 adjective /ˌɪnsəˈfɪʃənt/

insufficient

insuffisant
Meaning
Not enough; inadequate.
Example
His explanation was insufficient to clear the confusion.
Son explication était insuffisante pour clarifier la confusion.
B2 adjective ˌɪn.təˈræk.tɪv

interactive

interactif
Meaning
Allowing a two-way flow of information between it and a user, responding to the user's input.
Example
Interactive learning keeps students engaged in lessons.
L'apprentissage interactif maintient les étudiants engagés dans les leçons.
B2 noun /ɪnˈsen.tɪv/

Incentive

incitation; encouragement
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.
L'entreprise a offert une incitation en argent aux employés qui ont dépassé leurs objectifs de vente.
B2 adjective /ɪnˈækjərət/

Inaccurate

incorrect; erroné; faux
Meaning
not correct; containing errors; wrong
Example
The weather forecast was inaccurate yesterday.
La prévision météorologique était incorrecte hier.
B2 adjective /ɪnˈtriːɡɪŋ/

intriguing

très intéressant et inhabituel ; éveillant la curiosité
Meaning
very interesting and unusual; arousing curiosity
Example
The movie has an intriguing plot that keeps the audience hooked.
Le film a un scénario intrigant qui captive le public.
B2 adjective ˌɪnstrəˈmɛntl

instrumental

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.
Les enfants peuvent être instrumentaux dans la construction d'une société meilleure.
B2 noun /ˈɪdɪət/

idiot

idiot
Meaning
a person who acts in a way that is considered very stupid or foolish
Example
He acted like an idiot at the party last night.
Il a agi comme un idiot à la fête hier soir.
B2 verb /ɪnˈtriːɡ/

intrigue

intriguer
Meaning
to arouse curiosity or interest; to make someone fascinated
Example
The mystery novel will intrigue any reader.
Le roman mystère intriguerait n'importe quel lecteur.
B2 adjective /aɪˈrɒnɪkəl/

ironical

ironique
Meaning
expressing irony; having the nature of irony
Example
Her ironical tone made everyone uncomfortable.
Son ton ironique a mis tout le monde mal à l'aise.
B2 adjective /ˈɪmpæktfʊl/

impactful

impactant
Meaning
Having a major impact or effect; powerful and forceful.
Example
Her impactful speech moved the audience to take action.
Son discours impactant a poussé l'auditoire à passer à l'action.
B2 noun ɪˈmjuː.nɪ.ti

immunity

immunité
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.
Une forte immunité protège contre les infections.
B2 adjective /ɪmˈprɒp.ər/

Improper

inapproprié; incorrect; inadapté
Meaning
inappropriate; incorrect; not suitable
Example
It would be improper to discuss personal matters in a business meeting.
Il serait inapproprié de discuter de sujets personnels lors d'une réunion d'affaires.
B2 noun /ɪˈluː.ʒən/

Illusion

illusion
Meaning
a thing that is or is likely to be wrongly perceived or interpreted; a false idea or belief
Example
The magician created a spectacular illusion that made the elephant appear to vanish.
Le magicien a créé une illusion spectaculaire qui a fait apparaître l'éléphant disparaître.
B2 noun ˌɪr.ɪˈɡeɪ.ʃən

irrigation

irrigation
Meaning
The artificial application of water to land or soil.
Example
Irrigation systems improve crop yields in dry regions.
Les systèmes d'irrigation améliorent les rendements des cultures dans les régions sèches.
B2 verb /ɪnˈsʌlt/

insult

insulter
Meaning
to speak or act in a way that hurts someone's feelings or shows disrespect
Example
He felt insulted by her rude comments.
Il s'est senti insulté par ses commentaires impolis.
B2 noun /ˈɪntərfeɪs/

interface

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.
L'interface utilisateur est conçue pour être intuitive et facile à utiliser.
B2 adjective /ɪnˈtɒlərənt/

intolerant

intolérant
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.
Il est intolérant à toute opinion différente de la sienne.
B2 adjective /ɪnˈfɪə.ri.ər/

inferior

inférieur
Meaning
Of lower quality, rank, or status.
Example
This material is inferior to the one we used before.
Ce matériau est inférieur à celui que nous avons utilisé auparavant.
B2 noun /ˈɪmɪɡrənt/

immigrant

immigrant
Meaning
a person who comes to live permanently in a foreign country
Example
The city has welcomed many new immigrants this year.
La ville a accueilli de nombreux nouveaux immigrants cette année.
B2 noun /ɪnˈvɛstɪˌɡeɪtər/

investigator

bonheur
Meaning
a person who carries out a formal inquiry or investigation
Example
The investigator gathered evidence from the crime scene.
Elle n'a pas pu cacher son bonheur lorsqu'elle a reçu le prix.
B2 adverb /ɪnˈɛvɪtəbli/

inevitably

inévitable
Meaning
in a way that cannot be avoided or prevented
Example
Inevitably, the team faced challenges during the project.
Inévitablement, l'équipe a rencontré des défis pendant le projet.
B2 adjective /ɪnˈkeɪpəbəl/

incapable

incapable
Meaning
lacking the ability, skill, or capacity to do something
Example
He is incapable of understanding complex instructions.
Il est incapable de comprendre des instructions complexes.
B2 adjective /ˌɪn.trəˈdʌk.tər.i/

introductory

introductif
Meaning
Serving as an introduction; preliminary or preparatory.
Example
The professor gave an introductory lecture on economics.
Le professeur a donné une conférence introductive sur l'économie.
B2 adjective /ɪmˈpɪəriəl/

imperial

impérial
Meaning
Relating to an empire or emperor; having supreme authority.
Example
The imperial palace was a symbol of the emperor's power.
Le palais impérial était un symbole du pouvoir de l'empereur.
B2 adjective /ɪˈmætʃʊr/

Immature

immature; pas totalement développé; enfantin
Meaning
not fully developed; lacking emotional or intellectual development; childish
Example
His immature behavior during the meeting disappointed everyone.
Son comportement immature pendant la réunion a déçu tout le monde.
B2 noun /ˌɪntərˈsɛkʃən/

intersection

intersection
Meaning
a point where two or more things intersect, especially a road or path
Example
The intersection of Main Street and 5th Avenue is always busy.
L'intersection de la rue principale et de la 5e avenue est toujours occupée.
B2 verb /ɪnˈherɪt/

inherit

hériter
Meaning
to receive money, property, or characteristics from someone when they die; to acquire from predecessors
Example
She inherited her grandmother's house.
Elle a hérité de la maison de sa grand-mère.
B2 adjective /ɪnˈkluːsɪv/

inclusive

inclusif
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.
La croissance inclusive bénéficie à toutes les sections de la société.
B2 noun /ɪnˈtɒlərəns/

intolerance

intolérance
Meaning
unwillingness to accept or endure beliefs, behaviors, or conditions different from one's own
Example
The leader was criticized for his intolerance toward other religions.
Le leader a été critiqué pour son intolérance envers les autres religions.
B2 noun /ɪnˈspɛktər/

inspector

inspecteur
Meaning
An official employed to ensure regulations are obeyed or standards are met.
Example
The inspector carefully checked the restaurant's kitchen for hygiene standards.
L'inspecteur a soigneusement vérifié la cuisine du restaurant pour les normes d'hygiène.
B2 adjective /ˌɪnfluˈenʃəl/

Influential

influant; puissant
Meaning
having great influence on someone or something; powerful; persuasive
Example
She is an influential leader in the community.
C'est un leader influent dans la communauté.
B2 noun /ɪmˈpeɪʃəns/

impatience

impatience
Meaning
The state of being quickly irritated or unable to wait calmly.
Example
His impatience grew as the meeting dragged on.
Son impatience grandissait à mesure que la réunion s'éternisait.
B2 noun /ˈɪnˌsaɪt/

insight

perspicacité
Meaning
The ability to understand the true nature of something; deep understanding.
Example
Her insight into human behavior made her a successful psychologist.
Sa perspicacité sur le comportement humain en a fait une psychologue réussie.
B2 adjective /ˈɪɡ.nər.ənt/

Ignorant

ignorant
Meaning
lacking knowledge or awareness; uninformed
Example
She was ignorant about the new technology trends.
Elle était ignorante des nouvelles tendances technologiques.
B2 adjective /ɪˈlɪt.ər.ət/

Illiterate

analphabète; illettré; ignorants
Meaning
unable to read or write; lacking education
Example
The program aims to help illiterate adults learn to read and write.
Le programme vise à aider les adultes illettrés à apprendre à lire et à écrire.
B2 noun /ɪnˈfek.ʃən/

Infection

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.
Le médecin a prescrit des antibiotiques pour traiter l'infection bactérienne dans sa gorge.
B2 noun /ɪnˈdʌstriəl ˌrɛvəˈluːʃən/

Industrial Revolution

Révolution industrielle
Meaning
The rapid development of industry that occurred in Britain in the late 18th and 19th centuries, brought about by the introduction of machinery and characterized by the use of steam power and the growth of factories.
Example
The Industrial Revolution marked a shift in production processes.
La Révolution industrielle a marqué un changement dans les processus de production.
B2 noun ˌɪmplɪmenˈteɪʃən

implementation

mise en œuvre
Meaning
The process of putting a decision or plan into effect; execution.
Example
Proper implementation of policies is crucial.
La mise en œuvre correcte des politiques est cruciale.
B2 adjective /ɪnˈfɔːrmətɪv/

Informative

informatif
Meaning
giving or providing useful information; educational; instructive
Example
The documentary was very informative and educational.
Le documentaire était très informatif et éducatif.
B2 noun /ˌɪmɪˈɡreɪʃən/

immigration

immigration
Meaning
the action of coming to live permanently in a foreign country
Example
Immigration policies vary from country to country.
Les politiques d'immigration varient d'un pays à l'autre.
B2 noun ɪnˈtɛɡrɪti

integrity

intégrité
Meaning
The quality of being honest and having strong moral principles; moral uprightness.
Example
Teachers' integrity fosters a positive learning environment.
L'intégrité des enseignants favorise un environnement d'apprentissage positif.
B2 adjective /aɪˈrɒnɪk/

ironic

ironique, sarcastique
Meaning
happening in the opposite way to what is expected, often amusing or sarcastic
Example
It is ironic that the fire station burned down.
Il est ironique que la caserne de pompiers ait brûlé.
B2 noun ˌɪn.stəˈleɪ.ʃən

installation

installation
Meaning
The action or process of installing someone or something, or of being installed.
Example
The installation of the submarine cable is almost complete.
L'installation du câble sous-marin est presque terminée.
B2 adjective /ɪsˈlɑːmɪk/

islamic

islamique
Meaning
relating to Islam, its followers, or its teachings
Example
The city has many Islamic cultural centers.
La ville possède de nombreux centres culturels islamiques.
B2 noun ˌɪn.əˈveɪ.ʃən

innovation

innovation
Meaning
The action or process of innovating; a new method, idea, product, etc.
Example
Innovation drives solutions to global challenges.
L'innovation conduit à des solutions aux défis mondiaux.
B2 noun /ˈɪn.flu.ən.sər/

Influencer

influenceur, personne qui recommande des produits
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.
Les influenceurs des réseaux sociaux façonnent les préférences des consommateurs.
B2 adjective /ˌɪnkənˈsɪstənt/

inconsistent

incohérent
Meaning
Not staying the same throughout; lacking harmony or regularity.
Example
His answers were inconsistent and confusing.
Ses réponses étaient incohérentes et confuses.
B2 noun ˌɪn.tɪˈɡreɪ.ʃən

integration

Intégration. Unification.
Meaning
The action or process of integrating; the process of combining or adding parts to make a unified whole.
Example
Integration of networks will improve global communication.
L'intégration des réseaux améliorera la communication mondiale.
B2 adverb /ɪmˈpɒlɪtli/

impolitely

impoliment
Meaning
in a rude or discourteous manner; without showing respect or proper manners
Example
He spoke impolitely to the waiter despite the polite service.
Il a parlé impoliment au serveur malgré le bon service.
B2 adjective /ˌɪnɪˈfɪʃənt/

Inefficient

inefficace
Meaning
not achieving maximum productivity; wasteful of time or resources
Example
The old computer system was inefficient and wasted a lot of time.
Le vieux système informatique était inefficace et gaspillait beaucoup de temps.
B2 adjective /ɪˈrɛləvənt/

Irrelevant

irrélévant
Meaning
not connected with or relevant to something; having no bearing on the matter
Example
Your past mistakes are irrelevant to this discussion.
Vos erreurs passées sont irrélévantes pour cette discussion.
B2 adjective ɪnˈev.ɪ.tə.bəl

inevitable

inévitable
Meaning
Certain to happen; unavoidable.
Example
Death is an inevitable part of life.
La mort est une partie inévitable de la vie.
B2 noun, verb /ɪntʃ/

inch

pouce / se déplacer lentement
Meaning
A unit of length equal to 2.54 centimeters; or to move slowly and carefully in small amounts.
Example
She inched closer to the edge of the stage.
Elle s'est lentement rapprochée du bord de la scène.
B2 adjective /ɪnˈfekʃəs/

infectious

infectieux
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.
Son rire infectieux a fait sourire tout le monde.
B2 adjective /ɪnˈtɛnsɪv/

intensive

intensif
Meaning
Involving a lot of effort, energy, or concentration in a short period of time.
Example
She attended an intensive English course before moving abroad.
Elle a suivi un cours intensif d'anglais avant de partir à l'étranger.
B2 adjective /ɪˈmædʒ.ɪ.nər.i/

Imaginary

imaginaire; fictif; irréel
Meaning
existing only in imagination; not real; fictional
Example
The child had an imaginary friend who she talked to every day.
L'enfant avait un ami imaginaire avec lequel elle parlait tous les jours.
B2 verb /ɪmˈpoʊzd/

imposed

imposé
Meaning
forced something to be accepted or put in place
Example
The government imposed new regulations on the industry.
Le gouvernement a imposé de nouvelles régulations sur l'industrie.
B2 noun /ˌɪm.ɪˈteɪ.ʃən/

Imitation

imitation; copie; réplique
Meaning
the action of using someone or something as a model; a copy of something original
Example
His imitation of the famous actor was so good that everyone burst into laughter.
son imitation de l'acteur célèbre était tellement bonne que tout le monde a éclaté de rire.
B2 verb /ɪnˈsɜːrt/

insert

insérer
Meaning
to put or place something into something else
Example
Please insert the key into the lock.
veuillez insérer la clé dans la serrure.
B2 noun ɪˈlɪtərəsi

illiteracy

illettrisme
Meaning
The inability to read and write; lack of education or knowledge in a particular area.
Example
Illiteracy often leads to poverty and unemployment.
L'illettrisme conduit souvent à la pauvreté et au chômage.
B2 verb /ɪnˈdjuːs/

induce

induire
Meaning
to cause or persuade someone to do something; to bring about a result
Example
The doctor induced sleep with a mild sedative.
Le médecin a induit le sommeil avec un sédatif léger.
B2 adjective /ˌɪntərˈmiːdiət/

intermediate

intermédiaire
Meaning
Coming between two things in time, place, or order; in the middle level or stage.
Example
She is taking an intermediate-level French course.
Elle suit un cours de français de niveau intermédiaire.
B2 noun /ˈaɪrəni/

irony

ironie
Meaning
a situation that is strange or amusing because it is the opposite of what is expected; the use of words to convey the opposite meaning
Example
The irony of the situation was that the winner forgot his own prize.
L'ironie de la situation était que le gagnant avait oublié son propre prix.
B2 noun /ɪnˈtɛnt/

intent

intention
Meaning
the purpose or reason behind an action; a strong determination to do something
Example
Her intent was to improve the quality of education in the community.
Son intention était d'améliorer la qualité de l'éducation dans la communauté.
B2 noun ˌɪntəˈlektʃuəlz

intellectuals

intellectuels
Meaning
People possessing a highly developed intellect; scholars or academics.
Example
Intellectuals protested against the dominance.
Les intellectuels ont protesté contre la domination.
B2 adjective/noun /ɪˈrɑːki/

iraqi

irakien
Meaning
relating to Iraq or its people
Example
The Iraqi culture is rich and diverse.
La culture irakienne est riche et diversifiée.
B2 adjective ˈɪn.tɪ.ɡreɪ.tɪd

integrated

intégré
Meaning
Combining or coordinating separate elements so as to provide a harmonious, interrelated whole.
Example
Integrated systems optimize efficiency.
Les systèmes intégrés optimisent l'efficacité.
B2 verb /ɪnˈflɪkt/

inflict

infliger
Meaning
to cause something unpleasant or painful to be suffered by someone or something
Example
The storm inflicted considerable damage to the city.
La tempête a infligé des dégâts considérables à la ville.
B2 adjective, noun /ˌɪn.təlˈɛk.tʃu.əl/

intellectual

intellectuel
Meaning
Relating to the intellect; a person who engages in critical thinking and study.
Example
She enjoys intellectual discussions about philosophy.
Elle aime les discussions intellectuelles sur la philosophie.
B2 verb /ɪmˈpoʊz/

impose

imposer
Meaning
to force someone to accept something; to establish or apply by authority
Example
The government imposed new taxes on luxury goods.
Le gouvernement a imposé de nouvelles taxes sur les produits de luxe.
B2 noun /ɪnˈtɛnsəti/

intensity

intensité
Meaning
The quality of being extreme, strong, or forceful in degree.
Example
The intensity of the storm frightened the villagers.
L'intensité de la tempête a effrayé les villageois.
B2 verb /ɪnˈspekt/

inspect

inspecter
Meaning
to examine something carefully to check for problems or faults
Example
The engineer will inspect the building for structural damage.
L'ingénieur inspectera le bâtiment pour des dommages structurels.
B2 verb /ɪnˈʃʊər/

insure

assurer
Meaning
to provide insurance; to make certain
Example
I need to insure my new car.
J'ai besoin d'assurer ma nouvelle voiture.
B2 adjective ˈɪn.tɪ.ɡrəl

integral

intégral
Meaning
Necessary to make a complete whole; essential or fundamental.
Example
Exercise is an integral part of a healthy lifestyle.
L'exercice est une partie intégrante d'un mode de vie sain.
B2 noun /ˈɪnˌteɪk/

intake

ingestion
Meaning
the process of taking something in, especially food or drink
Example
He monitored his daily intake of calories to maintain a healthy diet.
Il a surveillé son apport quotidien en calories pour maintenir un régime alimentaire sain.
B2 noun /ˈɪn.vɔɪs/

Invoice

facture
Meaning
a list of goods sent or services provided, with a statement of the sum due for these
Example
The company sent an invoice for the office supplies delivered last week.
L'entreprise a envoyé une facture pour les fournitures de bureau livrées la semaine dernière.
B2 verb /ˌɪntərˈfɪər/

interfere

bonheur
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.
Elle ne pouvait pas cacher son bonheur quand elle a reçu le prix.
B2 adjective /ˈɪrɪteɪtɪd/

irritated

irrité
Meaning
feeling annoyed or impatient; having inflamed or sore physical condition
Example
She felt irritated by the constant noise outside her window.
Elle était irritée par le bruit constant à l’extérieur.
B2 adjective /ɪnˈvɪz.ə.bəl/

Invisible

invisible
Meaning
unable to be seen; not visible to the eye
Example
The bacteria are invisible without a microscope.
Les bactéries sont invisibles sans un microscope.
B2 verb /ɪnˈdʌldʒ/

indulge

se livrer
Meaning
to allow oneself to enjoy something enjoyable, often excessively
Example
He indulged in a piece of chocolate cake after dinner.
Il s'est adonné à un morceau de gâteau au chocolat après le dîner.
B2 adjective ˈaɪsəˌleɪtɪd

isolated

isolé
Meaning
Alone or separated from others; having little or no contact with other people.
Example
Technological advancements often leave people isolated.
Les progrès technologiques isolent souvent les gens.
B2 adjective /ɪˈmjuːn/

immune

immunisé
Meaning
protected from disease or from the effects of something
Example
Children who are vaccinated are immune to many diseases.
Les enfants vaccinés sont immunisés contre de nombreuses maladies.
B2 adjective /ɪmˈpɜːrfɪkt/

imperfect

imparfait
Meaning
Not perfect; having faults or flaws.
Example
The painting was beautiful despite being imperfect.
La peinture était belle malgré qu'elle fût imparfaite.
B2 adjective /ˈɪmɪnənt/

imminent

imminent
Meaning
About to happen; likely to occur very soon.
Example
Dark clouds signaled that a storm was imminent.
Les nuages sombres ont signalé qu'une tempête était imminente.
B2 verb ɪmˈpoʊz

imposes

imposer
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.
La pollution impose des effets nuisibles à l'environnement.
B2 noun /ˈaɪ.dəl/

Idol

idole; personne admirée
Meaning
an image or representation of a god used as an object of worship; a person who is greatly admired
Example
The singer became a teenage idol after her hit song topped the charts worldwide.
La chanteuse est devenue une idole adolescente après que sa chanson à succès ait atteint le sommet des classements mondiaux.
B2 noun /ɪnˈspekʃən/

inspection

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.
Le bâtiment a passé l'inspection de sécurité la semaine dernière.
B2 verb /ɪmˈprɪzən/

imprison

emprisonner
Meaning
to put someone in prison; to confine or restrict someone's freedom
Example
The judge imprisoned the criminal for five years.
Le juge a emprisonné le criminel pour cinq ans.
B2 noun, verb /ˈɪnstɪˌtjuːt/

institute

institut
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.
L'université a décidé d'instituer de nouvelles règles pour la bibliothèque.
B2 noun /ɪsˈlɑːm/

islam

religion islamique
Meaning
the religion founded by the Prophet Muhammad, based on belief in one God (Allah)
Example
Islam emphasizes peace, justice, and compassion.
L'Islam met l'accent sur la paix, la justice et la compassion.
B2 adjective /ˌɪnsɪɡˈnɪfɪkənt/

insignificant

insignifiant
Meaning
Too small or unimportant to be worth considering.
Example
The cost was so insignificant that nobody noticed it.
Le coût était tellement insignifiant que personne ne l'a remarqué.
B2 verb /ˌɪntərˈviːn/

intervene

intervenir
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.
L'enseignant a dû intervenir pour arrêter la bagarre entre les élèves.
B2 adjective /ˈaɪ.dəl/

Idle

paresseux; inactif; ne travaillant pas
Meaning
lazy; inactive; not working or being used
Example
The factory workers were idle during the strike.
Les ouvriers de l'usine étaient inactifs pendant la grève.
B2 adjective /ɪˈrɪˌspɑn.sə.bəl/

Irresponsible

irresponsable
Meaning
lacking a sense of responsibility; careless
Example
It was irresponsible of him to leave without telling anyone.
C'était irresponsable de sa part de partir sans prévenir personne.
B2 adjective + noun aɪˈdiːəl ɪnˈvaɪrənmənt

ideal environment

environnement idéal
Meaning
Perfect or most suitable conditions for growth or development
Example
Winter creates an ideal environment for vegetable growth.
L'hiver crée un environnement idéal pour la croissance des légumes.