12-Letter Nouns Starting With I
Here's the list of all the 663 12-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) | |
|---|---|
| introduction | 1. the act of beginning something new 2. the first section of a communication More Definitions → |
| instructions | 1. a manual usually accompanying a technical device and explaining how to install or operate it More Definitions → |
| installation | 1. the act of installing something (as equipment) 2. a building or place that provides a particular service or is used for a particular industry More Definitions → |
| intelligence | 1. the ability to comprehend; to understand and profit from experience 2. a unit responsible for gathering and interpreting information about an enemy More Definitions → |
| intellectual | 1. a person who uses the mind creatively More Definitions → |
| independence | 1. freedom from control or influence of another or others 2. the successful ending of the American Revolution More Definitions → |
| intermediate | 1. a substance formed during a chemical process before the desired product is obtained More Definitions → |
| intervention | 1. the act of intervening (as to mediate a dispute, etc.) 2. a policy of intervening in the affairs of other countries More Definitions → |
| illustration | 1. artwork that helps make something clear or attractive 2. showing by example More Definitions → |
| investigator | 1. a scientist who devotes himself to doing research 2. someone who investigates More Definitions → |
| instrumental | More Definitions → |
| intersection | 1. a point where lines intersect 2. a junction where one street or road crosses another More Definitions → |
| interference | 1. a policy of intervening in the affairs of other countries 2. the act of hindering or obstructing or impeding More Definitions → |
| infringement | 1. an act that disregards an agreement or a right 2. a crime less serious than a felony More Definitions → |
| interpreting | 1. an explanation of something that is not immediately obvious More Definitions → |
| inflammation | 1. a response of body tissues to injury or irritation; characterized by pain and swelling and redness and heat 2. the state of being emotionally aroused and worked up More Definitions → |
| imprisonment | 1. putting someone in prison or in jail as lawful punishment 2. the state of being imprisoned More Definitions → |
| invitational | More Definitions → |
| immunization | 1. the act of making immune (especially by inoculation) More Definitions → |
| illumination | 1. a condition of spiritual awareness; divine illumination 2. the degree of visibility of your environment More Definitions → |
| incompatible | More Definitions → |
| interruption | 1. an act of delaying or interrupting the continuity 2. some abrupt occurrence that interrupts an ongoing activity More Definitions → |
| interconnect | More Definitions → |
| incontinence | 1. involuntary urination or defecation 2. indiscipline with regard to sensuous pleasures More Definitions → |
| intermediary | 1. a negotiator who acts as a link between parties More Definitions → |
| infiltration | 1. a process in which individuals (or small groups) penetrate an area (especially the military penetration of enemy positions without detection) 2. the slow passage of a liquid through a filtering medium More Definitions → |
| intimidation | 1. the act of intimidating a weaker person to make them do something 2. the feeling of discouragement in the face of someone's superior fame or wealth or status etc. More Definitions → |
| interception | 1. the act of intercepting; preventing something from proceeding or arriving 2. (American football) the act of catching a football by a player on the opposing team More Definitions → |
| indebtedness | 1. an obligation to pay money to another party 2. a personal relation in which one is indebted for a service or favor More Definitions → |
| indifference | 1. unbiased impartial unconcern 2. apathy demonstrated by an absence of emotional reactions More Definitions → |
| inauguration | 1. the act of starting a new operation or practice 2. the ceremonial induction into a position More Definitions → |
| implantation | 1. (embryology) the organic process whereby a fertilized egg becomes implanted in the lining of the uterus of placental mammals 2. the act of planting or setting in the ground More Definitions → |
| incompetence | 1. lack of physical or intellectual ability or qualifications 2. inability of a part or organ to function properly More Definitions → |
| incandescent | More Definitions → |
| interstitial | More Definitions → |
| inactivation | 1. the process of rendering inactive 2. breaking up a military unit (by transfers or discharges) More Definitions → |
| invertebrate | 1. any animal lacking a backbone or notochord; the term is not used as a scientific classification More Definitions → |
| intoxication | 1. the physiological state produced by a poison or other toxic substance 2. a temporary state resulting from excessive consumption of alcohol More Definitions → |
| interlocking | 1. contact by fitting together 2. the act of interlocking or meshing More Definitions → |
| intermission | 1. the act of suspending activity temporarily 2. a time interval during which there is a temporary cessation of something More Definitions → |
| illegitimate | 1. the illegitimate offspring of unmarried parents More Definitions → |
| incineration | 1. the act of burning something completely; reducing it to ashes More Definitions → |
| inspectorate | 1. a body of inspectors More Definitions → |
| inefficiency | 1. unskillfulness resulting from a lack of efficiency More Definitions → |
| irritability | 1. an irritable petulant feeling 2. excessive sensitivity of an organ or body part More Definitions → |
| immunisation | 1. the act of making immune (especially by inoculation) More Definitions → |
| insurrection | 1. organized opposition to authority; a conflict in which one faction tries to wrest control from another More Definitions → |
| impartiality | 1. an inclination to weigh both views or opinions equally More Definitions → |
| insemination | 1. the act of sowing (of seeds in the ground or, figuratively, of germs in the body or ideas in the mind, etc.) 2. the introduction of semen into the genital tract of a female More Definitions → |
| intercession | 1. a prayer to God on behalf of another person 2. the act of intervening (as to mediate a dispute, etc.) More Definitions → |
| invisibility | 1. the quality of not being perceivable by the eye More Definitions → |
| irregularity | 1. behavior that breaches the rule or etiquette or custom or morality 2. not characterized by a fixed principle or rate; at irregular intervals More Definitions → |
| indomethacin | 1. a nonsteroidal anti-inflammatory drug (trade name Indocin) More Definitions → |
| interdiction | 1. authoritative prohibition 2. a court order prohibiting a party from doing a certain activity More Definitions → |
| imperfection | 1. the state or an instance of being imperfect More Definitions → |
| infotainment | 1. a film or TV program presenting the facts about a person or event More Definitions → |
| inexperience | 1. lack of experience and the knowledge and understanding derived from experience More Definitions → |
| impersonator | 1. someone who (fraudulently) assumes the appearance of another More Definitions → |
| interrogator | 1. a questioner who is excessively harsh More Definitions → |
| invalidation | 1. (law) a formal termination (of a relationship or a judicial proceeding etc) 2. when a person's thoughts and feelings are rejected, ignored, or judged. More Definitions → |
| interjection | 1. an abrupt emphatic exclamation expressing emotion 2. the action of interjecting or interposing an action or remark that interrupts More Definitions → |
| impregnation | 1. material with which something is impregnated 2. the process of totally saturating something with a substance More Definitions → |
| intransitive | 1. a verb (or verb construction) that does not take an object More Definitions → |
| indiscretion | 1. the trait of being injudicious 2. a petty misdeed More Definitions → |
| isolationism | 1. a policy of nonparticipation in international economic and political relations More Definitions → |
| isolationist | 1. an advocate of isolationism in international affairs More Definitions → |
| interlocutor | 1. the performer in the middle of a minstrel line who engages the others in talk 2. a person who takes part in a conversation More Definitions → |
| inarticulate | More Definitions → |