15-letter words containing n, o, r, t
- flow of control — control flow
- flowering plant — a plant that produces flowers, fruit, and seeds; angiosperm.
- fluoridationist — One who supports the addition of fluoride to the public water supply.
- fluorine dating — a method of determining the relative age of fossil bones found in the same excavation by comparing their fluorine content.
- flying fortress — a heavy bomber, the B-17, with four radial piston engines, widely used over Europe and the Mediterranean by the U.S. Air Force in World War II.
- food insecurity — an economic and social condition of limited or uncertain access to adequate food.
- football ground — an area of land where football games are played
- for a certainty — without doubt
- for the present — being, existing, or occurring at this time or now; current: increasing respect for the present ruler of the small country.
- for their pains — You say that something was all you got for your pains when you are mentioning the disappointing result of situation into which you put a lot of work or effort.
- forbidden fruit — the fruit of the tree of knowledge of good and evil, tasted by Adam and Eve against God's prohibition. Gen. 2:17; 3:3.
- fore-topgallant — being a sail, yard, or rigging belonging to a fore-topgallant mast.
- forensic expert — an expert in applying scientific, technical or medical knowledge to the purposes of law
- foreshortenings — Plural form of foreshortening.
- foresightedness — care or provision for the future; provident care; prudence.
- forest of arden — a region of N Warwickshire, part of a former forest: scene of Shakespeare's As You Like It
- formal argument — (programming) (Or "parameter") A name in a function or subroutine definition that is replaced by, or bound to, the corresponding actual argument when the function or subroutine is called. In many languages formal arguments behave like local variables which get initialised on entry. See: argument.
- formation dance — any dance in which a number of couples form a certain arrangement, such as two facing lines or a circle, and perform a series of figures within or based on that arrangement
- formation fluid — Formation fluid is fluid in the pores (=tiny holes) of a rock.
- formation rules — the set of rules that specify the syntax of a formal system; the algorithm that generates the well-formed formulae
- formularization — The act of formularizing; a formularized or formulated statement or exhibition.
- forthcomingness — coming, forth, or about to come forth; about to appear; approaching in time: the forthcoming concert.
- fortysomethings — Plural form of fortysomething.
- founding father — The founding father of an institution, organization, or idea is the person who sets it up or who first develops it.
- fourteen points — a statement of the war aims of the Allies, made by President Wilson on January 8, 1918.
- fourteen-points — a statement of the war aims of the Allies, made by President Wilson on January 8, 1918.
- fourth position — a position in which the feet are at right angles to the direction of the body, the toes pointing out, with one foot forward and the other foot back.
- fovea centralis — a small pit or depression at the back of the retina forming the point of sharpest vision.
- fractional note — a banknote in a denomination smaller than the standard unit of currency
- fractionalizing — Present participle of fractionalize.
- fraternal order — men's organization
- freak of nature — a person or animal that is born or grows with abnormal physical features.
- frederick north — Christopher, pen name of John Wilson.
- free throw lane — the rectangular area, 19 feet (5.7 meters) long and usually 12 or 16 feet (3.6 m or 4.8 meters) wide, extending from the end line behind each backboard to the foul line and along the sides of which players line up during a foul shot.
- free throw line — foul line (def 2).
- free-trade zone — foreign-trade zone. free port (def 1). Abbreviation: FTZ.
- freestone state — Connecticut (used as a nickname).
- french overture — a short piece in three movements common in the 17th and 18th centuries
- french togoland — a former United Nations Trust Territory in W Africa, administered by France (1946–60), now the independent republic of Togo
- french vermouth — a dry aromatic white wine
- friction clutch — a clutch in which one part turns another by friction between them.
- friend at court — a friend in a position of influence or power who may advance one's interests, especially a helpful person who is close to someone in authority.
- fringing forest — gallery forest.
- from sun to sun — from sunrise to sunset
- front-page news — a story printed on the first page of a newspaper
- frontal cyclone — any extratropical cyclone associated with a front: the most common cyclonic storm.
- fructifications — Plural form of fructification.
- full outer join — outer join
- funeral oration — a formal speech delivered at a funeral
- furniture depot — a shop that sells the movable, generally functional, articles that equip a room, house, etc