16-letter words containing u, n, f, r
- defective number — a positive number that is greater than the sum of all positive integers that are submultiples of it, as 10, which is greater than the sum of 1, 2, and 5.
- deferred annuity — an annuity that commences not less than one year after the final purchase premium
- do oneself proud — to do extremely well
- documentary film — factual, informative film
- drug trafficking — smuggling illegal drugs
- eigenfrequencies — Plural form of eigenfrequency.
- electric furnace — any furnace in which the heat is provided by an electric current
- facial neuralgia — paroxysmal darting pain and muscular twitching in the face, evoked by rubbing certain points of the face.
- farquhar islands — an island group in the Indian Ocean: administratively part of the Seychelles
- fashion industry — the industry that deals with the world of fashion
- feather geranium — a Eurasian weed, Chenopodium botrys, of the amaranth family, having clusters of inconspicuous flowers and unpleasant smelling, lobed leaves.
- feeping creature — [feeping creaturism] An unnecessary feature; a bit of chrome that, in the speaker's judgment, is the camel's nose for a whole horde of new features.
- feminine caesura — a caesura occurring immediately after an unstressed or short syllable.
- ferruginous duck — a common European duck, Aythyra nyroca, having reddish-brown plumage with white wing bars
- feulgen reaction — a reaction in which an aldehyde combines with a modified Schiff's reagent to produce a purplish compound: used especially to test for the presence of DNA
- fibonacci number — a number in the Fibonacci sequence, each of which is the sum of the previous two
- figure-conscious — concerned to keep an attractively slim body shape
- find favour with — to be approved of by someone
- finished product — the product that emerges at the end of a manufacturing process
- fire regulations — rules intended to make sure that people and property stay safe in the event of a fire
- first lieutenant — an officer ranking next above second lieutenant and next below a captain.
- fishing industry — the industry of catching fish
- fissure eruption — the emergence of lava from a fissure in the ground rather than from a volcanic cone or vent
- fixed-price menu — In a restaurant, the cost of a meal on a fixed-price menu stays the same and does not vary.
- flowering quince — any shrub belonging to the genus Chaenomeles, of the rose family, native to eastern Asia, having showy, waxy flowers and a quincelike fruit, grown widely as an ornamental.
- fluorescent lamp — a tubular electric discharge lamp in which light is produced by the fluorescence of phosphors coating the inside of the tube.
- flutter tonguing — a method of sounding a wind instrument, esp the flute, with a rolling movement of the tongue
- fool around with — have casual sex
- for a/one minute — If you say that you do not believe for a minute or for one minute that something is true, you are emphasizing that you do not believe that it is true.
- for external use — If medicine is for external use, it is intended to be used only on the outside of your body, and not to be eaten or drunk.
- for the duration — If you say that something will happen for the duration, you mean that it will happen for as long as a particular situation continues.
- foreign currency — money used in another country
- foreign language — language not one's mother tongue
- fort sam houston — a military reservation and U.S. Army training center in San Antonio, Tex.
- founders' shares — shares awarded to the founders of a company and often granting special privileges
- four-dimensional — of a space having points, or a set having elements, which require four coordinates for their unique determination.
- four-minute mile — a mile-long race run in four minutes or less
- fourier analysis — the expression of any periodic function as a sum of sine and cosine functions, as in an electromagnetic wave function. Compare Fourier series.
- fourth amendment — an amendment to the U.S. Constitution, ratified in 1791 as part of the Bill of Rights, prohibiting unlawful search and seizure of personal property.
- fourth dimension — Physics, Mathematics. a dimension in addition to length, width, and depth, used so as to be able to employ geometrical language in discussing phenomena that depend on four variables: Time is considered a fourth dimension for locating points in space-time.
- franchise clause — a clause stipulating that the insured will be responsible for any loss not in excess of a stated amount, and the insurance company will be liable for full payment of the loss equaling or exceeding the amount up to the insured amount.
- francis of paula — Saint, 1416–1507, Italian monk: founder of the order of Minims.
- frankfurt school — a school of thought, founded at the University of Frankfurt in 1923 by Theodor Adorno, Herbert Marcuse and others, derived from Marxist, Freudian, and Hegelian theory
- fraternity house — a house occupied by a college or university fraternity.
- fraunhofer lines — a set of dark lines appearing in the continuous emission spectrum of the sun. It is caused by the absorption of light of certain wavelengths coming from the hotter region of the sun by elements in the cooler outer atmosphere
- freezing mixture — a mixture of two substances, usually salt and ice, to give a temperature below 0°C
- french community — a cultural and economic association of France, its overseas departments and territories, and former French territories that chose to maintain association after becoming independent republics: formed 1958.
- frontier dispute — a conflict concerning a frontier between countries and which usually involves those countries
- functional group — a group of atoms responsible for the characteristic behavior of the class of compounds in which the group occurs, as the hydroxyl group in alcohols.
- functional water — water containing additives that provide extra nutritional value