English Words: I

17,902 words · Page 8 of 359

IBMeresenoun

The technical jargon used by IBM employees.

IBMesenoun

The jargon used within the IBM computer company.

ibnnoun

son of

Iboname

Alternative form of Igbo.

ibodutantnoun

A candidate drug for irritable bowel syndrome diarrhea.

iboganoun

Tabernanthe iboga, a perennial rainforest shrub and a source of the hallucinogen ibogaine.

ibogainenoun

A naturally-occurring psychoactive compound found in a number of plants, principally iboga (Tabernanthe iboga), and used for medicinal and ritual purposes in African spiritual traditions of the Bwiti. Its use in opioid addiction treatment seems promising but has safety issues.

ibonnoun

cinnamon ibon (Hypocryptadius cinnamomeus)

iBooknoun

A computer of a line of lower-end laptop computers formerly manufactured by Apple Computer.

ibopaminenoun

A sympathomimetic used in ophthalmology to induce mydriasis.

ibotenatenoun

A salt or ester of ibotenic acid.

ibotenicadj

Relating to ibotenic acid and its derivatives.

Ibotsonname

A surname originating as a matronymic or as a patronymic.

ibrphrase

Initialism of I'll be real.

Ibrahimname

The prophet Abraham in Islam.

Ibrahimicadj

Abrahamic.

ibriknoun

A long-spouted pitcher, typically made of brass.

ibrutinibnoun

A targeted covalent inhibitor of Bruton's tyrosine kinase and hence used in treating B cell malignancies.

IBSadj

Initialism of identical by state.

Ibsenname

A surname.

Ibsenesqueadj

Reminiscent of the style of Henrik Ibsen (1828–1906), 19th-century Norwegian playwright, theatre director, and poet.

Ibsenianadj

Of or pertaining to Henrik Ibsen (1828–1906), 19th-century Norwegian playwright, theatre director, and poet.

Ibsenicadj

Ibsenian

Ibsenishadj

Synonym of Ibsenesque.

Ibsenismname

The dramatic practice or purpose characteristic of the writings of Henrik Ibsen, whose best-known plays deal with conventional hypocrisies, the story in each play thus developing a definite moral problem.

Ibsenitenoun

One who admires or imitates the style of Henrik Ibsen (1828–1906), 19th-century Norwegian playwright.

Ibsonname

A surname originating as a matronymic or as a patronymic.

ibunoun

ibuprofen

ibufenacnoun

The carboxylic acid 4-isobutylphenylacetic acid once used in the treatment of rheumatoid arthritis

ibuprofennoun

A synthetic compound used widely as an analgesic and anti-inflammatory drug.

ibuterolnoun

A beta-adrenergic agonist.

ibutilidenoun

An antiarrhythmic agent indicated for acute cardioconversion of atrial fibrillation and atrial flutter of a recent onset to sinus rhythm.

iBuyernoun

A company which offers to buy real estate (usually residential) quickly for cash, often without the level of due diligence exercised by traditional buyers and using computer algorithms to determine price.

IBWname

Initialism of International Business Wales.

Ibycusname

An Ancient Greek name, particularly borne by a 6th-century Ancient Greek lyric poet from Rhegium in Italy.

Ibăneștiname

A commune of Botoșani County, Romania.

ICnoun

Initialism of independent contractor.

IC lightningnoun

Intracloud lightning; lightning which occurs within a cloud, resulting in the discharge of electricity between regions of the cloud. (Often, but not always, this takes the form of sheet lightning.)

icacinaceousadj

Belonging to the Icacinaceae.

ICANNname

Acronym of Internet Corporation for Assigned Names and Numbers.

ICAOname

Acronym of International Civil Aviation Organization, a United Nations agency headquartered in Montreal, Canada.

Icardname

A surname from French.

Icarianame

Alternative form of Ikaria.

Icarianadj

Of or relating to the mythological Icarus.

Icarianismnoun

A form of communistic utopianism of the late 19th century, established by the followers of Étienne Cabet.

Icarusname

A Greek mythological figure, son of Daedalus, who escaped from the Cretan labyrinth of Knossos by flying with wings made from feathers and wax, but flew too near to the sun, which melted the wax in the wings, so he fell down and drowned in the Aegean Sea.

icasmnoun

imitative or figurative expression

icasticadj

imitative or figurative; making a likeness

ICBMnoun

Initialism of intercontinental ballistic missile.

ICCname

Initialism of International Criminal Court.

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 8. 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.