11-Letter Nouns Starting With I

Here's the list of all the 763 11-Letter Nouns Starting With I in the English Language.

The list is arranged by the word lengths. Click on the length below to jump to the relevant section of the page.

Common Nouns (with Definitions and Examples)
information
1. a message received and understood
2. knowledge acquired through study or experience or instruction
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independent
1. a neutral or uncommitted person (especially in politics)
2. a writer or artist who sells services to different employers without a long-term contract with any of them
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improvement
1. a change for the better; progress in development
2. the act of improving something
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integration
1. the action of incorporating a racial or religious group into a community
2. the act of combining into an integral whole
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instruction
1. a message describing how something is to be done
2. the activities of educating or instructing; activities that impart knowledge or skill
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institution
1. an organization founded and united for a specific purpose
2. an establishment consisting of a building or complex of buildings where an organization for the promotion of some cause is situated
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interaction
1. a mutual or reciprocal action; interacting
2. (physics) the transfer of energy between elementary particles or between an elementary particle and a field or between fields; mediated by gauge bosons
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immigration
1. migration into a place (especially migration to a country of which you are not a native in order to settle there)
2. the body of immigrants arriving during a specified interval
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involvement
1. the act of sharing in the activities of a group
2. a connection of inclusion or containment
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investigateMore Definitions →
inspiration
1. arousal of the mind to special unusual activity or creativity
2. a product of your creative thinking and work
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incorporateMore Definitions →
imagination
1. the formation of a mental image of something that is not perceived as real and is not present to the senses
2. the ability to form mental images of things or events
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integrating
1. the action of incorporating a racial or religious group into a community
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inheritance
1. hereditary succession to a title or an office or property
2. that which is inherited; a title or property or estate that passes by law to the heir on the death of the owner
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illustrator
1. an artist who makes illustrations (for books or magazines or advertisements etc.)
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interpreter
1. someone who mediates between speakers of different languages
2. someone who uses art to represent something
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informatics
1. the sciences concerned with gathering, manipulating, storing, retrieving, and classifying recorded information
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influentialMore Definitions →
interchange
1. a junction of highways on different levels that permits traffic to move from one to another without crossing traffic streams
2. mutual interaction; the activity of reciprocating or exchanging (especially information)
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incrementalMore Definitions →
instability
1. an unstable order
2. unreliability attributable to being unstable
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infertility
1. the state of being unable to produce offspring; in a woman it is an inability to conceive; in a man it is an inability to impregnate
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installment
1. a payment of part of a debt; usually paid at regular intervals
2. a part of a broadcast serial
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implication
1. something that is inferred (deduced or entailed or implied)
2. a meaning that is not expressly stated but can be inferred
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inscription
1. letters inscribed (especially words engraved or carved) on something
2. a short message (as in a book or musical work or on a photograph) dedicating it to someone or something
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inefficientMore Definitions →
imperialism
1. a policy of extending your rule over foreign countries
2. a political orientation that advocates imperial interests
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irradiation
1. the condition of being exposed to radiation
2. a column of light (as from a beacon)
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interviewer
1. a person who conducts an interview
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intolerance
1. impatience with annoyances
2. unwillingness to recognize and respect differences in opinions or beliefs
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impeachment
1. a formal document charging a public official with misconduct in office
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importation
1. the commercial activity of buying and bringing in goods from a foreign country
2. commodities (goods or services) bought from a foreign country
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inclination
1. an attitude of mind especially one that favors one alternative over others
2. (astronomy) the angle between the plane of the orbit and the plane of the ecliptic stated in degrees
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indifferentMore Definitions →
interleukin
1. any of several lymphokines that promote macrophages and killer T cells and B cells and other components of the immune system
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incompetent
1. someone who is not competent to take effective action
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incarnation
1. a new personification of a familiar idea
2. time passed in a particular bodily form
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immortality
1. the quality or state of being immortal
2. perpetual life after death
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insecticide
1. a chemical used to kill insects
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interceptor
1. a fast maneuverable fighter plane designed to intercept enemy aircraft
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infestation
1. the state of being invaded or overrun by parasites
2. a swarm of insects that attack plants
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indentation
1. a concave cut into a surface or edge (as in a coastline)
2. the formation of small pits in a surface as a consequence of corrosion
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imperialist
1. a believer in imperialism
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inquisition
1. a severe interrogation (often violating the rights or privacy of individuals)
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isomorphism
1. (biology) similarity or identity of form or shape or structure
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indignation
1. a feeling of righteous anger
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inseparableMore Definitions →
incinerator
1. a furnace for incinerating (especially to dispose of refuse)
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inoculation
1. taking a vaccine as a precaution against contracting a disease
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indigestion
1. a disorder of digestive function characterized by discomfort or heartburn or nausea
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instantiateMore Definitions →
innervation
1. the neural or electrical arousal of an organ or muscle or gland
2. the distribution of nerve fibers to an organ or body region
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impoundment
1. placing private property in the custody of an officer of the law
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interviewee
1. a person who is interviewed
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inferiority
1. the state of being inferior
2. an inferior quality
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immunoassay
1. identification of a substance (especially a protein) by its action as an antigen
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iconography
1. the images and symbolic representations that are traditionally associated with a person or a subject
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infatuation
1. a foolish and usually extravagant passion or love or admiration
2. temporary love of an adolescent
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impersonateMore Definitions →
infomercial
1. a television commercial presented in the form of a short documentary
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interrogateMore Definitions →
indivisibleMore Definitions →
inessential
1. anything that is not essential
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interpolateMore Definitions →
impropriety
1. an improper demeanor
2. the condition of being improper
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incantation
1. a ritual recitation of words or sounds believed to have a magical effect
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irrelevance
1. the lack of a relation of something to the matter at hand
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internalizeMore Definitions →
inattention
1. lack of attention
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infanticide
1. a person who murders an infant
2. murdering an infant
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impingement
1. influencing strongly
2. a sharp collision produced by striking or dashing against something
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indirection
1. indirect procedure or action
2. deceitful action that is not straightforward
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infiltrator
1. someone who takes up a position surreptitiously for the purpose of espionage
2. an intruder (as troops) with hostile intent
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intensifier
1. a modifier that has little meaning except to intensify the meaning it modifies
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illusionist
1. a person with unusual powers of foresight
2. someone who performs magic tricks to amuse an audience
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informality
1. a manner that does not take forms and ceremonies seriously
2. freedom from constraint or embarrassment
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instigation
1. the verbal act of urging on
2. deliberate and intentional triggering (of trouble or discord)
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infantryman
1. fights on foot with small arms
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incoherence
1. lack of cohesion or clarity or organization
2. nonsense that is simply incoherent and unintelligible
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investiture
1. the ceremony of installing a new monarch
2. the ceremonial act of clothing someone in the insignia of an office; the formal promotion of a person to an office or rank
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imprecision
1. the quality of lacking precision
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11-Letter Nouns Starting With I