13-letter words containing r, u, n, i
- eusporangiate — (of ferns) having each sporangium developing from a group of cells, rather than a single cell, and with no specialized dispersal of spores
- excursionists — Plural form of excursionist.
- excursiveness — The quality of being discursive.
- extinguishers — Plural form of extinguisher.
- faerie queene — a chivalric romance in verse (1590–96) by Edmund Spenser.
- fairy penguin — a small penguin, Eudyptula minor, with a bluish head and back, found on the Australian coast
- fantin-latour — (Ignace) Henri (Joseph Théodore) [ee-nyas ahn-ree zhaw-zef tey-aw-dawr] /iˈnyas ɑ̃ˈri ʒɔˈzɛf teɪ ɔˈdɔr/ (Show IPA), 1836–1904, French painter.
- fermentitious — of a fermenting nature
- ferociousness — savagely fierce, as a wild beast, person, action, or aspect; violently cruel: a ferocious beating.
- ferroaluminum — a ferroalloy containing up to 80 percent aluminum.
- ferrotitanium — a ferroalloy containing up to 45 percent titanium.
- ferrovanadium — a ferroalloy containing up to 55 percent vanadium.
- fiddle around — waste time doing sth trivial
- figure of fun — If you describe someone as a figure of fun, you mean that people think they are ridiculous.
- figure-ground — a property of perception in which there is a tendency to see parts of a visual field as solid, well-defined objects standing out against a less distinct background.
- filibustering — Present participle of filibuster.
- film industry — all the companies, studios, people etc involved in making commercial films collectively
- final curtain — end of a theatre performance
- fine adjuster — (jargon, tool, humour) A tool used for percussive maintenance, also known as a "hammer".
- finger buffet — a buffet meal at which food that may be picked up with the fingers (finger food), such as canapés or vol-au-vents, is served
- finger puppet — a miniature puppet fitting over and manipulated by one finger.
- fish geranium — zonal geranium.
- flavopurpurin — a yellow, crystalline anthraquinone dye, C 14 H 8 O 5 , isomeric with purpurin.
- flight number — the identifying number of a scheduled flight
- floor cushion — a cushion placed on the floor of a room for people to sit on
- flourishingly — In a flourishing way; tending to succeed and grow.
- flugelhornist — One who plays the flugelhorn.
- flunitrazepam — a powerful benzodiazepine sedative, C 16 H 12 FN 3 O 3 , that causes semiconsciousness and memory blackouts: has been implicated in date rapes and is illegal in the U.S.
- fluoroscoping — Present participle of fluoroscope.
- flying circus — a squadron of airplanes operating together, especially any of several squadrons of famous World War I aviators.
- flying saucer — any of various disk-shaped objects allegedly seen flying at high speeds and altitudes, often with extreme changes in speed and direction, and thought by some to be manned by intelligent beings from outer space.
- food industry — the industry surrounding the production of food
- forcing house — a place where growth or maturity (as of fruit, animals, etc) is artificially hastened
- foreconscious — the preconscious.
- foregrounding — Present participle of foreground.
- form function — (jargon) The shape of something designed. This term is currently (Feb 1998) in vogue among marketroids.
- formularising — Present participle of formularise.
- formularizing — Present participle of formularize.
- fortitudinous — having or showing fortitude; marked by bravery or courage.
- foundationary — the basis or groundwork of anything: the moral foundation of both society and religion.
- four-wheeling — traveling in a vehicle using four-wheel drive.
- fractiousness — refractory or unruly: a fractious animal that would not submit to the harness.
- frelinghuysen — Frederick Theodore, 1817–85, U.S. statesman.
- french guiana — an overseas department of France, on the NE coast of South America: formerly a French colony. 35,135 sq. mi. (91,000 sq. km). Capital: Cayenne.
- french guinea — former name of Guinea.
- frequentation — the practice of frequenting; habit of visiting often.
- frequentative — noting or pertaining to a verb aspect expressing repetition of an action.
- freudian slip — (in Freudian psychology) an inadvertent mistake in speech or writing that is thought to reveal a person's unconscious motives, wishes, or attitudes.
- frightfulness — The quality of being frightful.
- frivolousness — characterized by lack of seriousness or sense: frivolous conduct.