15-letter words containing a, c, o
- inefficaciously — Without efficacy or effect.
- infants' school — kindergarten.
- inspection arms — a position in military drill in which the missile chamber of a weapon is open for inspection.
- insurrectionary — of, relating to, or of the nature of insurrection.
- intensification — to make intense or more intense.
- inter-parochial — of, relating to, or financially supported by one or more church parishes: parochial churches in Great Britain.
- intercollegiate — taking place between or participating in activities between different colleges: intercollegiate athletics.
- intercolonially — in an intercolonial manner
- intercomparison — mutual comparison
- intercorrelated — to place in or bring into mutual or reciprocal relation; establish in orderly connection: to correlate expenses and income.
- interfoliaceous — situated between leaves, especially opposite leaves.
- interiorscaping — The design, installation, and maintenance of interiorscapes.
- interjaculatory — expressed by interjaculating
- interjectionary — Interjectional.
- interprovincial — belonging or peculiar to some particular province; local: the provincial newspaper.
- interrecord gap — the area or space separating consecutive physical records of data on an external storage medium.
- interscholastic — between schools, or representative of different schools, especially secondary schools: interscholastic athletics.
- intramyocardial — Into or within the myocardium.
- introspectional — Of or relating to introspection.
- inverted commas — Inverted commas are punctuation marks that are used in writing to show where speech or a quotation begins and ends. They are usually written or printed as ' ' or " ". Inverted commas are also sometimes used around the titles of books, plays, or songs, or around a word or phrase that is being discussed.
- invitation card — a card given to someone to invite them to something
- ionospherically — by the ionosphere
- iridocapsulitis — inflammation of the iris and the capsule of the lens.
- ironstone china — a tough durable earthenware
- irrationalistic — Of or relating to irrationalism.
- irreconcileable — Alternative spelling of irreconcilable.
- irrevocableness — Quality of being irrevocable.
- irritable colon — any combination of common disturbances of the bowel, as diarrhea or constipation, occurring with abdominal pain, sometimes accompanied by psychological stress. Abbreviation: IBS.
- islands council — (in Scotland since 1975) any of the three divisions (Orkney, Shetland, and the Western Isles) into which the Scottish islands are divided for purposes of local government
- isoamyl acetate — a colorless liquid, C 7 H 14 O 2 , used in flavorings, perfumery, and as a solvent. Compare banana oil (def 1).
- isolated camera — a television camera used to isolate a subject, part of a sports play, etc., for instant replay.
- isoperimetrical — having equal perimeters
- isothiocyanates — Plural form of isothiocyanate.
- jack-in-the-box — a toy consisting of a box from which an enclosed figure springs up when the lid is opened.
- jack-o'-lantern — a hollowed pumpkin with openings cut to represent human eyes, nose, and mouth and in which a candle or other light may be placed, traditionally made for display at Halloween.
- jacob ben asher — c1269–c1340, Hebrew commentator on the Bible and codifier of Jewish law.
- jaques-dalcroze — Émile [French ey-meel] /French eɪˈmil/ (Show IPA), 1865–1950, Swiss composer and teacher: created eurythmics.
- jerusalem cross — a cross whose four arms are each capped with a crossbar and often with a small Greek cross centered in each quadrant.
- jnt association — (company) A non-profit company funded by the UK's advisory committee to manage and develop the UK national research network backbone. In 1970, the United Kingdom Computer Board commissioned Professor Mike Wells to report on UK university networking. As a result, on 1976-11-01, the Network Unit was created which in turn led to the creation in 1979 of a full-time Joint Network Team (JNT) and in 1982 to the creation of JANET. On 1993-12-10, the JNT Association was formed to develop and manage JANET for the education and research community.
- john barleycorn — a personification of barley as used in malt liquor, of malt liquor itself, or of any intoxicating liquor.
- joint financing — the provision of funds for a project, etc, from two or more sources
- joseph jacquard — Joseph Marie [zhoh-zef ma-ree] /ʒoʊˈzɛf ma ri/ (Show IPA), 1752–1834, French inventor.
- judeo-christian — of or relating to the religious writings, beliefs, values, or traditions held in common by Judaism and Christianity.
- juice extractor — device: squeezes juice from fruit
- jukebox musical — a musical play or film that is based around a series of well-known popular songs
- kailyard school — a school of writers describing homely life in Scotland, with much use of Scottish dialect: in vogue toward the close of the 19th century.
- kaleidoscopical — Alternative form of kaleidoscopic.
- kaleyard school — a group of writers who depicted the sentimental and homely aspects of life in the Scottish Lowlands from about 1880 to 1914. The best known contributor to the school was J. M. Barrie
- karaoke machine — a device that plays a prerecorded backing tape, to which people take it in turns to sing
- kelmscott manor — a Tudor house near Lechlade in Oxfordshire: home (1871–96) of William Morris