13-letter words containing o, u, p, i
- group captain — an officer holding commissioned rank senior to a wing commander but junior to an air commodore in the RAF and certain other air forces
- group of five — France, Japan, UK, US, and Germany acting as a group to stabilize their currency exchange rates
- guilt complex — If you say that someone has a guilt complex about something, you mean that they feel very guilty about it, in a way that you consider is exaggerated, unreasonable, or unnecessary.
- half coupling — a flange fixed at the end of each of the two shafts that are connected in a flange coupling
- haruspication — the use of animal entrails for divination
- hippo zarytus — ancient name of Bizerte.
- house painter — a person whose occupation is painting houses.
- house slipper — a slipper worn in the house or indoors, often distinguished from a bedroom slipper by having a back and heel.
- housepainters — Plural form of housepainter.
- housewifeship — the role of a housewife, household management
- hydrosulphide — a compound containing the univalent group –HS.
- hydrosulphite — hyposulfite (def 1).
- hypercautious — Especially or unreasonably cautious.
- hyperfunction — abnormally increased function, especially of glands or other organs.
- hypermutation — (uncountable) Frequent mutation.
- hypochondrium — either of two regions of the abdomen, situated on each side of the epigastrium and above the lumbar regions.
- hypoeutectoid — (of steel) having less carbon than the 0.8 percent of eutectoid steel.
- hypoperfusion — (medicine) Decreased perfusion of blood through an organ.
- hyposexuality — A significantly low level of sexuality.
- hyposulphuric — relating to sulphur which is in a lower state of oxidation than it is in sulphuric compounds
- if you please — expressing mild outrage
- immunotherapy — treatment designed to produce immunity to a disease or enhance the resistance of the immune system to an active disease process, as cancer.
- impecuniosity — having little or no money; penniless; poor.
- impecuniously — In an impecunious manner.
- imperiousness — domineering in a haughty manner; dictatorial; overbearing: an imperious manner; an imperious person.
- impetuosities — Plural form of impetuosity.
- impetuousness — of, relating to, or characterized by sudden or rash action, emotion, etc.; impulsive: an impetuous decision; an impetuous person.
- importunately — urgent or persistent in solicitation, sometimes annoyingly so.
- importunities — Plural form of importunity.
- impostumation — an abscess or swelling filled with pus
- in one's cups — a small, open container made of china, glass, metal, etc., usually having a handle and used chiefly as a receptable from which to drink tea, soup, etc.
- inclusion map — a map of a set to itself in which each element of a given subset of the set is mapped to itself.
- inconspicuous — not conspicuous, noticeable, or prominent.
- incorruptable — Misspelling of incorruptible.
- incorruptible — not corruptible: incorruptible integrity.
- incorruptibly — In an incorruptible manner.
- incorruptness — The state of being incorrupt.
- indo-european — a large, widespread family of languages, the surviving branches of which include Italic, Slavic, Baltic, Hellenic, Celtic, Germanic, and Indo-Iranian, spoken by about half the world's population: English, Spanish, German, Latin, Greek, Russian, Albanian, Lithuanian, Armenian, Persian, Hindi, and Hittite are all Indo-European languages. Compare family (def 14).
- inner product — Also called dot product, scalar product. the quantity obtained by multiplying the corresponding coordinates of each of two vectors and adding the products, equal to the product of the magnitudes of the vectors and the cosine of the angle between them.
- inopportunely — In an inopportune manner.
- inopportunity — not opportune; inappropriate; inconvenient; untimely or unseasonable: an inopportune visit.
- insupportable — not endurable; unbearable; insufferable: insupportable pain.
- insupportably — In an insupportable manner.
- interpunction — the insertion of punctuation marks in a piece of writing
- interruptions — an act or instance of interrupting.
- isoamyl group — the univalent group C 5 H 11 .
- isospondylous — of, relating to, or belonging to the Isospondyli (or Clupeiformes), an order of soft-finned teleost fishes that includes the herring, salmon, trout, and pike
- jodhpuri coat — a coat worn by men in India, similar to but shorter than a sherwani
- john q public — the average or typical U.S. citizen: an entertainment aimed at Mr. and Mrs. John Q. Public.
- judeo-spanish — Ladino (def 1).