English Words: I

17,902 words · Page 25 of 359

innsnoun

plural of inn

Innsbruckname

The capital city of Tyrol, in western Austria.

innuendonoun

A derogatory hint or reference to, or (often sexual) insinuation about, a person or thing.

innumerableadj

Not capable of being counted, enumerated, or numbered.

inoculateverb

To introduce an antigenic substance or vaccine into something (e.g. the body) or someone, such as to produce immunity to a specific disease.

inoculationnoun

The introduction of an antigenic substance or vaccine into the body to produce immunity to a specific disease.

inoculumnoun

The active material used in an inoculation; an inoculant (i.e., a material or a dose thereof).

inoffensiveadj

not offensive

inoperableadj

Incapable of being successfully operated on.

inoperativeadj

Not working or functioning; either idle or broken.

inopportuneadj

Unsuitable for some particular purpose.

inordinateadj

Excessive; unreasonable or inappropriate in magnitude.

inordinatelyadv

In an inordinate manner.

inorganicadj

Relating to a compound that does not contain carbon.

inositolnoun

A simple carbocyclic sugar (hexahydroxycyclohexane; chemical formula: C₆H₁₂O₆) which occurs in animal and plant tissue. Once treated as part of the vitamin B complex, but is not a vitamin as it can be synthesized by the body.

Inouename

A surname from Japanese.

Inouyename

A surname from Japanese.

inpatientnoun

A patient whose treatment requires at least one night's residence in a hospital; a hospitalized patient.

inputnoun

The act or process of putting in; infusion.

inquestnoun

A formal investigation, often held before a jury, especially one into the cause of a death

inquireverb

To ask (about something).

inquiredverb

simple past and past participle of inquire

inquirernoun

One who inquires.

inquiriesnoun

plural of inquiry

inquiringverb

present participle and gerund of inquire

inquirynoun

The act of inquiring; a seeking of information by asking questions; interrogation; a question or questioning.

inquisitionnoun

An inquiry or investigation into the truth of some matter.

inquisitiveadj

Eager to acquire knowledge; acquisitive.

inquisitornoun

A person who inquires, especially searchingly or ruthlessly.

inquisitorialadj

Of or pertaining to an inquisition, specifically the Inquisition.

inroadsnoun

plural of inroad

insnoun

plural of in

insaneadj

Exhibiting unsoundness or disorder of mind; not sane; utterly mad.

insanelyadv

In an insane manner; not sanely.

insanitynoun

The state of being insane; madness.

insatiableadj

Not satiable; incapable of being satisfied or appeased; very greedy.

inscribeverb

To write or cut (words) onto (something, especially a hard surface, or a book to be given to another person); to engrave.

inscribedverb

simple past and past participle of inscribe

inscriptionnoun

The act of inscribing.

inscrutableadj

Difficult or impossible to comprehend, fathom, or interpret.

inseamnoun

The seam of a trouser up the inside of the leg.

insectnoun

An arthropod (in the Insecta class) characterized by six legs, up to four wings, and a chitinous exoskeleton.

insecticidaladj

Of, relating to, or being insecticide; insect-killing.

insecticidenoun

A substance used to kill insects.

insectivorousadj

Feeding on insects.

insectsnoun

plural of insect

insecureadj

Not secure.

insecuritynoun

A lack of security; uncertainty.

inseminationnoun

A sowing of seed; the act of inseminating.

insensibleadj

Unable to be perceived by the senses.

Spelling & Dictionary Insight

The English alphabetical index for the letter I contains 17,902 headwords drawn from our Wiktionary-derived dictionary table. At 50 entries per page the browse splits into 359 pages, and you are currently viewing page 25. Every row above is a dictionary-backed entry with a canonical slug, and each links through to a full definition page with pronunciation, senses, etymology, and related-word data where available.

On this page 50 of 50 entries carry a part-of-speech tag and 50 carry at least one stored definition. Coverage varies across letters because Wiktionary volunteers build entries at different speeds for different parts of the alphabet, letters with common starting sounds (S, C, T, P) usually have the densest coverage, while less frequent starters (X, Q, Z) tend to have shorter but more specialised lists. PlainSpell surfaces whatever data is present and links back to the source when a definition is not yet recorded.

For readers using this index as a spelling reference, the guarantee is that every form you see on the list is a documented English headword, not a guess, not a derived inflection lacking a lemma row. If a word you expected to find is absent from the "I" list, it usually means the form exists only as an inflection of another lemma (e.g. a past participle stored under the infinitive) or the entry has not yet been imported from Wiktionary. Use the search bar or the misspelling lookup to resolve these cases.