441 Nouns That Start with I [with Definitions and Examples]

This article contains nouns that start with I. Nouns starting with I are really useful in your daily life, especially if you use the English language or want to excel in it. It is not only nouns beginning with I, but any noun is needed in every sentence, so the more you know, the better it is for impressing others with your writing.

In order to write an exceptional article or whatever it is that you are trying to write, it is crucial to use advanced words and nouns. These nouns that start with I will help you to expand your vocabulary and write a praiseworthy script. If you memorize these nouns that start with I mentioned here, writing will be a piece of cake for you.

This article contains a list of nouns that start with I, which are unique and fun. You can also use nouns that start with I to describe a person.

Table of Contents

Nouns That Start with I You Always Use

If you are in need of some nouns that are commonly used by people, then these nouns that start with I are perfect as they are common and easy to understand as well.

1. Ice

Definition: frozen water, a brittle transparent crystalline solid
Synonyms: icicle, glaze

Example: She scraped the ice off the windscreen.

2. Inch

Definition: a unit of linear measure equal to one-twelfth of a foot (2.54 cm)
Synonyms: measurement, length

Example: The toy train is four inches long.

3. Itch

Definition: an uncomfortable sensation on the skin that causes a desire to scratch
Synonyms: tingling, irritation

Example: I’ve got an itch on the back of my neck.

4. Idiot

Definition: a stupid person
Synonyms: fool, halfwit
Example: He is an idiot.

5. Image

Definition: a representation of the external form of a person or thing in art
Synonyms: likeness, resemblance
Example: Her work juxtaposed images from serious and popular art.

6. Income

Definition: money received, especially on a regular basis, for work or through investments
Synonyms: salary, pay
Example: He has a nice home and an adequate income.

7. Ivory

Definition: a hard creamy-white substance composing the main part of the tusks of an elephant, walrus, or narwhal, often (especially formerly) used to make ornaments and other articles

Synonyms: tawny, creamy
Example: The light, portable ivories would have been particularly attractive as loot.

8. Importance

Definition: the state or fact of being of great significance or value
Synonyms: significance, consequence
Example: This is the importance of a good education.

9. Illness

Definition: a disease or period of sickness affecting the body or mind
Synonyms: sickness, disease
Example: He died after a long illness.

10. Import

Definition: the action or process of importing goods or services
Synonyms: importation, importing
Example: These are the import of live cattle from Canada.

Nouns That Start with I You Usually Use

These nouns starting with I are used frequently, and so you might already know most of them but keeping them in a list like these is useful. So keep on reading to find out if you know them or not.

1. Ice-boat

Definition: a skeleton boat or frame on runners propelled on ice, usually by sails
Synonyms: ice breaker, ice yacht
Example: Answering the order to pass, the RAV4 Prime picks up the pace like an ice-boat catching a gust, accelerating on the glide.

2. Ice-box

Definition: a chilled box or cupboard for keeping something cold, especially food
Synonyms: refrigerator, freezer
Example: All samples were kept in an ice-box during delivery to the laboratory, and the experiments were performed as soon as possible.

3. Idol

Definition: a person or thing that is greatly admired, loved, or revered
Synonyms: hero, star
Example: He is a soccer idol.

4. Ill-will

Definition: animosity or bitterness
Synonyms: hostility, enmity

Example: He didn’t bear his estranged wife any ill-will.

5. Impression

Definition: an idea, feeling, or opinion about something or someone, especially one formed without conscious thought or on the basis of little evidence
Synonyms: feeling, sense
Example: His first impressions of Manchester were very positive.

6. Incidence

Definition: the occurrence, rate, or frequency of a disease, crime, or another undesirable thing
Synonyms: occurrence, the prevalence
Example: There have been quite a few incidences of bullying in the school this year.

7. Inability

Definition: the state of being unable to do something
Synonyms: incapability, incapacity
Example: He has an inability to accept new ideas.

8. Ill-blood

Definition: bad blood
Synonyms: enmity, resentment
Example: I had forgotten that there was ill-blood between you.

9. Idiom

Definition: a characteristic mode of expression in music or art
Synonyms: expression, phrase

Example: To “have bitten off more than you can chew” is an idiom that means you have tried to do something which is too difficult for you.

10. Icing

Definition: a mixture of sugar with water, egg white, or butter, used as a coating for cakes or biscuits
Synonyms: glaze, frosting
Example: I like chocolate butter icing.

Nouns That Start with I You Often Use

These nouns starting with I are used often in many aspects and so are quite useful as well. Keep on reading in order to increase your vocabulary while finding some new words.

1. Ideology

Definition: a system of ideas and ideals, especially one which forms the basis of economic or political theory and policy
Synonyms: beliefs, ideas
Example: The people are caught between two opposing ideologies.

2. Inclusion

Definition: the action or state of including or of being included within a group or structure
Synonyms: incorporation, addition
Example: They have been selected for inclusion in the scheme.

3. Immodesty

Definition: lack of humility or decency
Synonyms: indecency, immorally
Example: He had the immodesty to say that his way is the only way.

4. Imitation

Definition: the action of using someone or something as a model

Synonyms: emulation, copying
Example: A child learns to speak by imitation.

5. Importer

Definition: a person or organization that brings goods or services into a country from abroad for sale
Synonyms: pitcher, shop women
Example: The EU is the largest importer of agricultural products from developing countries.

6. Interrelation

Definition: the way in which each of two or more things is related to the other or others
Synonyms: interconnection, interrelationship
Example: The interrelation between industry and agriculture is huge.

7. Inclination

Definition: a person’s natural tendency or urge to act or feel in a particular way
Synonyms: tendency, propensity
Example: John was a scientist by training and inclination.

8. Impulse

Definition: a sudden strong and unreflective urge or desire to act
Synonyms: urge, drive
Example: I had an almost irresistible impulse to giggle.

9. Incapacity

Definition: physical or mental inability to do something or to manage one’s affairs

Synonyms: disability, inability
Example: They can be sacked only for incapacity or misbehavior.

10. Inaccuracy

Definition: the quality or state of not being accurate
Synonyms: incorrectness, inexactness
Example: The film is full of historical inaccuracies.

Nouns That Start with I You Sometimes Use

Not all nouns are used as frequently as others, right? In this section are some nouns beginning with I, which you may come across sometimes while reading a book.

1. Iguana

Definition: a large arboreal tropical American lizard with a spiny crest along the back and greenish coloration
Synonyms: alligator, lizard

Example: I fully agree with what he says about turtles, but he should not confuse them with iguanas.

2. Imprest

Definition: a fund used by a business for small items of expenditure and restored to a fixed amount periodically
Synonyms: advance, prepayment
Example: A sum of £35,000 is for imprests to individual stores for working capital and £105,000 for other expenditure.

3. Impressionism

Definition: a style of painting, which began in France in the 1860s, in which the artist tries to represent the effects of light on an object, person, area of countryside, etc
Synonyms: impressionist, expressionist
Example: Impressionism is a 19th-century art movement.

4. Improvisation

Definition: the action of improvising
Synonyms: extemporization, spontaneity
Example: She specializes in improvisation on the piano.

5. Incompatibility

Definition: the condition of two things being so different in nature as to be incapable of coexisting

Synonyms: inconsistent, conflicting
Example: Our different backgrounds had something to do with our incompatibility.

6. Inattention

Definition: lack of attention
Synonyms: preoccupation, distraction

Example: A moment of inattention that could have cost lives.

7. Icelander

Definition: a native or inhabitant of Iceland, or a person of Icelandic descent

Synonyms: European, Iceland citizen
Example: The ship was owned by an Icelander.

8. Ichor

Definition: the fluid that flows like blood in the veins of the gods
Synonyms: fluid, ichorous
Example: Talos was eventually deactivated by the witch Medea, who (in one version of the myth) removed a bronze rivet on his ankle and drained out the ichor that powered his movement.

9. Interval

Definition: an intervening time
Synonyms: interim, interlude
Example: After his departure, there was an interval of many years without any meetings.

10. Incense

Definition: a gum, spice, or other substance that is burned for the sweet smell it produces
Synonyms: perfume, fragrance
Example: I love the heavenly incense of spring flowers.

Nouns That Start with I You Occasionally Use

We surely come across some new words once in a while reading, right? In this list below are some noun words that start with I, which are occasionally used.

1. Incision

Definition: a surgical cut made in skin or flesh
Synonyms: cut, slit
Example: The surgeon makes a small incision into which a tube is inserted.

2. Ibex

Definition: a wild mountain goat with long, thick ridged horns and a beard, found in parts of central Asia and in Ethiopia
Synonyms: goat, ram
Example: The primary culture of ibex adapted to the in vitro culture system gradually and spread well.

3. Ibis

Definition: a large wading bird with a long down-curved bill, long neck, and long legs
Synonyms: bird, crane
Example: I think the ibis analogy can be drawn a little too far, but there is perhaps a grain of truth in it.

4. Ides

Definition: (in the ancient Roman calendar) a day falling roughly in the middle of each month (the 15th day of March, May, July, and October, and the 13th of other months) from which other dates were calculated
Synonyms: calends, nones
Example: The interim response pros ides the basis for a wide-ranging public consultation before a comprehensive final response is published later this year.

5. Inanity

Definition: a nonsensical remark or action
Synonyms: inane, silliness
Example: They utter whatever inanities will get them elected.

6. Imago

Definition: the final and fully developed adult stage of an insect, typically winged
Synonyms: larva, cocoon
Example: Newbell, who is Black, had spoken about imago Dei — the idea that all humans, of all races, are made in the image and likeness of God.

7. Inapplicability

Definition: irrelevance by virtue of being inapplicable to the matter at hand
Synonyms: impertinence, irrelevance
Example: The sheer inapplicability of the comment made everyone else at the meeting stare in bewilderment.

8. Imprisonment

Definition: the state of being imprisoned
Synonyms: incarceration, internment
Example: He was sentenced to two months’ imprisonment.

9. Incompetency

Definition: the quality or condition of being incompetent; lack of ability
Synonyms: inability, incapability
Example: The incompetency of the secretary was revealed only after she had left the company, and her successor discovered years of filing left undone.

10. Incest

Definition: sexual relations between people classed as being too closely related to marry each other
Synonyms: interbreeding, oedipal love
Example: She is a victim of incest.

Nouns That Start with I You Seldom Use

These words are not so commonly used, and so you will surely come across some new nouns here. Keep reading to find some new nouns that start with the letter I.

1. Intension

Definition: the internal content of a concept
Synonyms: connotation, meaning
Example: I watched the film for the first time really with the intention of remaking it, which is really strange,” he told reporters in Berlin.

2. Intercourse

Definition: communication or dealings between individuals or groups
Synonyms: dealings, relations
Example: Our survey reveals that most couples have intercourse once a week.

3. Inanition

Definition: exhaustion caused by lack of nourishment
Synonyms: lethargy, starvation
Example: The members of the rear party died of inanition.

4. Impresario

Definition: a person who organizes and often finances concerts, plays, or operas
Synonyms: organizer, manager
Example: If an impresario did not meet the minimum, he had to lower the ticket prices, and his theater would receive a smaller subsidy.

5. Impiety

Definition: lack of piety or reverence
Synonyms: godlessness, ungodliness
Example: He blamed the fall of the city on the impiety of the people.

6. Imbecility

Definition: the quality or state of being very stupid or foolish
Synonyms: silliness, futility
Example: We were stunned by the imbecility of the ideas presented by this once-respected biologist.

7. Imp

Definition: a small evil spirit
Synonyms: child, kiddie
Example: Come here, you little imp!

8. Impertinence

Definition: lack of respect
Synonyms: rudeness, insolence
Example: They gasped at the impertinence of the suggestion.

9. Incongruity

Definition: the state of being incongruous
Synonyms: incompatibility, inappropriateness
Example: The incongruity of his fleshy face and skinny body disturbed her.

10. Inconstancy

Definition: the state or act of not staying the same, especially in opinions, behavior, or love
Synonyms: inconstant, moody
Example: As a leader, he is notorious for his inconstancy.

Nouns That Start with I You Rarely Use

Our brain isn’t a dictionary, and so it is likely that we don’t know all the words that exist. These are some I-nouns that might be new to you as they are rarely used.

1. Incombustibility

Definition: incapable of being burned
Synonyms: fireproof, non-combustible
Example: Incombustibility of the board using styrofoam waste as a binder was improved by increasing the density and the resin content of the board.

2. Incipience

Definition: beginning to exist or to be apparent
Synonyms: offset, outset
Example: He placed the incipience of democratic faith at around 1850.

3. Incivility

Definition: rude or unsociable speech or behavior
Synonyms: rudeness, discourtesy
Example: Absenteeism and incivility were not tolerated by everyone.

4. Intelligentsia

Definition: intellectuals or highly educated people as a group, especially when regarded as possessing culture and political influence
Synonyms: intellectuals, academics
Example: He was a presidential candidate who was the darling of the intelligentsia—and very few others.

5. Impunity

Definition: exemption from punishment or freedom from the injurious consequences of an action
Synonyms: immunity, indemnity
Example: The impunity enjoyed by military officers implicated in civilian killings.

6. Imbroglio

Definition: an extremely confused, complicated, or embarrassing situation
Synonyms: complication, problem
Example: The Soviet Union became anxious to withdraw its soldiers from the Afghan imbroglio.

7. Inbreeding

Definition: breed from closely related people or animals, especially over many generations
Synonyms: incest, oedipal
Example: The effects of inbreeding are immense.

8. Incantation

Definition: a series of words said as a magic spell or charm
Synonyms: chant, invocation
Example: Around the fire, tribal elders chanted incantations.

9. Isthmus

Definition: a narrow piece of land with water on each side that joins two larger areas of land
Synonyms: headland, promontory
Example: Head to the other side of the isthmus (Railay East) for a-rockin’ bar scene.

10. Idiosyncrasy

Definition: a mode of behavior or way of thought peculiar to an individual
Synonyms: eccentricity, peculiarity
Example: One of his little idiosyncrasies was always preferring to be in the car first.

Positive Nouns That Start with I

Positive nouns that start with I can be quite useful when it comes to cheering ourselves up. So here are some nouns that can possibly help you feel better and can increase your vocabulary at the same time.

1. Idealist

Definition: a person who is guided more by ideals than by practical considerations
Synonyms: utopian, visionary
Example: They were idealists and visionaries, in love with the work they had undertaken.

2. Initiative

Definition: the ability to assess and initiate things independently
Synonyms: enterprise, inventiveness
Example: Use your initiative, imagination, and common sense.

3. Innovation

Definition: the action or process of innovating
Synonyms: change, alteration
Example: Innovation is crucial to the continuing success of any organization.

4. Insight

Definition: the capacity to gain an accurate and deep understanding of someone or something
Synonyms: intuition, perception
Example: His mind soared to previously unattainable heights of insight.

5. Integrity

Definition: the quality of being honest and having strong moral principles
Synonyms: honesty, uprightness
Example: He is a gentleman of complete integrity.

6. Intimacy

Definition: close familiarity or friendship
Synonyms: closeness, togetherness
Example: Intimacy between teachers and students is not recommended.

7. Icon

Definition: a very famous person or thing considered as representing a set of beliefs or a way of life
Synonyms: idol, image
Example: Beckham has been one of the country’s best-loved sporting icons.

8. Idea

Definition: a thought or suggestion as to a possible course of action
Synonyms: plan, design
Example: I’ve had an idea – why don’t we go to the coast?

9. Immersion

Definition: deep mental involvement in something
Synonyms: absorption, ingress
Example: I had a week’s immersion in the culinary heritage of Puglia

10. Implementation

Definition: the process of putting a decision or plan into effect; execution
Synonyms: execution, application
Example: She was responsible for the implementation of the plan.

Nouns That Start with I – Full List (441 words)

Ibex
Ibis
Ice
Iceberg
Icebox
Icecap
Icicle
Icon
Iconoclasm
Idea
Ideal
Idealism
Idealist
Idealization
Identification
Identity
Ideologist
Ideology
Idiocy
Idiom
Idiot
Idleness
Idler
Idol
Idolatry
Idolizer
Idyll
Igloo
Ignition
Ignorance
Iguana
Ileum
Ill
Illegal
Illegitimacy
Illiteracy
Illness
Illumination
Illusion
Illustration
Illustrator
Image
Imagery
Imagination
Imagineer
Imagnation
Imbalance
Imbecile
Imbroglio
Imitation
Imitator
Immaturity
Immediacy
Immensity
Immersion
Immigrant
Immigration
Imminence
Immobility
Immodesty
Immorality
Immortality
Immunity
Immunization
Impact
Impairment
Impartiality
Impasse
Impatience
Impediment
Imperative
Imperfectability
Imperfection
Imperialism
Imperialist
Impersonation
Impiety
Implant
Implement
Implementation
Implication
Import
Importance
Importation
Imposition
Impossibility
Impotence
Impotency
Impresario
Impresser
Impression
Impressionist
Imprimatur
Imprisonment
Impromptu
Impropriety
Improvement
Improvisation
Improviser
Impudence
Impulse
Impunity
Impurity
Imputation
Inability
Inaccuracy
Inaction
Inactivation
Inactivity
Inadequacy
Inadvertence
Inamorata
Inamorato
Inaugural
Inauguration
Incantation
Incapacity
Incarnation
Incense
Incentive
Inception
Inceptor
Inch
Incidence
Incident
Incinerator
Incipience
Incipiency
Incitement
Inclination
Incline
Inclusion
Income
Incompatibility
Incompetence
Incomprehension
Incongruity
Inconsistency
Inconvenience
Incorporation
Incorruptibility
Increase
Incredulity
Incubation
Incubi
Inculcation
Incursion
Ind
Indecision
Indefinite
Indefinity
Indemnity
Indenture
Independence
Independent
Index
Indication
Indicator
Indictment
Indifference
Indigation
Indigestion
Indignation
Indirection
Indisposition
Indium
Individual
Individualism
Individualist
Individuality
Individuation
Indivisibility
Indivisible
Indoctrination
Indolence
Inducement
Induction
Indulgence
Industralization
Industrialism
Industrialist
Industrialization
Industry
Inefficiency
Inequality
Inertia
Inevitability
Inexperience
Infamy
Infancy
Infant
Infantry
Infantryman
Infantrymen
Infarct
Infarction
Infatuation
Infection
Inference
Inferiority
Inferno
Infestation
Infidelity
Infield
Infiltration
Infinite
Infinitive
Infinity
Infirmary
Infirmity
Inflammation
Inflation
Inflection
Infliction
Inflow
Influence
Influent
Influenza
Influx
Informality
Informant
Information
Infraction
Infrared
Infringement
Infuriation
Infusion
Ingenuity
Ingestion
Ingratitoode
Ingratitude
Ingredient
Inhabitation
Inhalation
Inheritance
Inheritor
Inhibition
Inhibitor
Initiation

Initiative
Initiator
Injection
Injunction
Injury
Injustice
Ink
Inlet
Inmate
Inn
Innocence
Innovation
Innovator
Innuendo
Inoculation
Inpost
Input
Inquest
Inquiry
Inquisitor
Insanity
Inscription
Inscrutability
Insect
Insecticide
Insecurity
Insemination
Insert
Insertion
Inset

Inside
Insight
Insignificance
Insinuation
Insistence
Insolence
Insomnia
Insouciance
Inspection
Inspector
Inspiration
Instability
Installation
Installment
Instance
Instancy
Instant
Instigation
Instigator
Instillation
Instinct
Institute
Institution
Institutionalization
Institutor
Instruction
Instructor
Instrument
Instrumentation
Insubordination

Insularity
Insulation
Insulator
Insulin
Insult
Insurance
Insurgence
Insurrection
Intake
Integer
Integral
Integration
Integrity
Intellect
Intellectual
Intellectuality
Intelligence
Intelligentsia
Intemperance
Intendant
Intensification
Intensifier
Intensity
Intent
Intention
Interaction
Intercept
Interceptor
Interchange
Intercourse

Interdependence
Intereference
Interest
Interface
Interference
Interferometer
Interim
Interior
Interlocutor
Interlude
Intermarriage
Interment
Intermission
Intern
International
Interne
Interplay
Interpolation
Interposition
Interpretation
Interpreter
Interpretor
Interregnum
Interrelation
Interrelationship
Interrogation
Interrogator
Interruption
Intersection
Interval

Intervention
Interview
Interviewee
Interviewer
Intestine
Intima
Intimacy
Intimate
Intimidation
Intolerance
Intonation
Intransigence
Intrigue
Introduction
Introject
Introspection
Intruder
Intrusion
Intuition
Invader
Invalid
Invalidism
Invasion
Invention
Inventor
Inventory
Inverse
Inversion
Investigation
Investigator

Investment
Investor
Invigoration
Inviolability
Invitation
Invite
Invitee
Invocation
Involution
Involvement
Invulnerability
Iodide
Iodination
Iodine
Iodoamino
Iodoprotein
Ion
Ionosphere
Iota
Ire
Iridium
Irish
Iron
Irony
Irradiation
Irrationality
Irredentism
Irregular
Irregularity
Irreproducibility

Irresolution
Irresponsibility
Irreverence
Irrigation
Irritability
Irritant
Irritation
Irsac
Island
Isle
Isocyanate
Isolation
Isolationism
Issuance
Issue
Itch
Item
Itemization
Itinerary
Ity
Ivory
Ivy

Final Thoughts on Nouns That Start with I

Congratulations on finishing this article. So did you come across some new nouns beginning with I or not? I am confident that you surely did. These are some nouns starting with I, but of course not all. If you memorize these nouns, I am sure you will be able to improve your English skills drastically.

Keep on reading this article, and you will surely be able to expand your vocabulary and excel in your writing skills. Hope you found this article containing nouns that start with I helpful.