15-letter words containing s, a, f, r, o
- first-day cover — a cover marked so as to indicate that it was mailed on the first day of issue of the stamp it bears and from one of the cities at which the stamp was issued on that day.
- fishing harbour — a place where fishing boats are tied up
- fission reactor — a nuclear reactor in which a fission reaction takes place
- fissiparousness — The quality of being fissiparous.
- five-star hotel — a top-quality hotel offering exceptional luxury
- flatter oneself — to hold the self-satisfying or self-deluding belief (that)
- flavourdynamics — as in quantum flavour dynamics, a mathematical model used to describe the interaction of flavoured particles (weak force) through the exchange of intermediate vector bosons
- flavourlessness — Alternative spelling of flavorlessness.
- flavoursomeness — Alt form flavorsomeness.
- flirtatiousness — The quality of being flirtatious.
- floating screed — Building Trades. screed (def 3).
- flood insurance — insurance covering loss or damage to property arising from a flood, flood tide, or the like.
- floods of tears — If you say that someone was in floods of tears or in a flood of tears, you are emphasizing that they were crying with great intensity because they were very upset.
- floral tributes — bunches or arrangements of flowers left as a memorial at the site of a fatal incident
- fluoridationist — One who supports the addition of fluoride to the public water supply.
- fluorochemicals — Plural form of fluorochemical.
- fluorophosphate — a salt or ester of a fluorophosphoric acid.
- fool's paradise — a state of enjoyment based on false beliefs or hopes; a state of illusory happiness.
- foolscap quarto — a book size, 63⁄4 by 81⁄2 inches (foolscap quarto)
- for pity's sake — You can say for pity's sake to add emphasis to what you are saying, especially when you are annoyed or upset.
- for some reason — for an unknown reason
- for the sake of — for the good of
- 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.
- forecastle deck — a partial weather deck on top of a forecastle superstructure; topgallant forecastle.
- forecastle head — the extreme fore part of a forecastle superstructure.
- foreign affairs — politics: international relations
- forest of arden — a region of N Warwickshire, part of a former forest: scene of Shakespeare's As You Like It
- formal calculus — an uninterpreted symbolic system whose syntax is precisely defined, and on which a relation of deducibility is defined in purely syntactic terms; a logistic system
- formation rules — the set of rules that specify the syntax of a formal system; the algorithm that generates the well-formed formulae
- foster daughter — a girl raised like one's own daughter, though not such by birth or adoption.
- fovea centralis — a small pit or depression at the back of the retina forming the point of sharpest vision.
- franz joseph ii — 1906–1989, prince of Liechtenstein 1938–89.
- free atmosphere — the part of the atmosphere that lies above the frictional influence of the earth's surface.
- free soil party — a former U.S. political party (1848–56) that opposed the extension of slavery in the Territories not yet admitted to statehood.
- freestone state — Connecticut (used as a nickname).
- front-page news — a story printed on the first page of a newspaper
- fructifications — Plural form of fructification.
- fusospirochetal — Relating to fusospirochetes.
- garrison finish — the finish of a race, especially a horse race, in which the winner comes from behind to win at the last moment.
- giant sunflower — a composite plant, Helianthus giganteus, of eastern North America, growing nearly 12 feet (4 meters) high and having very large yellow flower heads.
- golden starfish — an award given to a bathing beach that meets EU standards of cleanliness
- grafenberg spot — a patch of tissue in the front wall of the vagina, claimed to be erectile and highly erogenous.
- grapes of wrath — a novel (1939) by John Steinbeck.
- gulf of argolis — an inlet of the Aegean Sea, in the E Peloponnese
- half-understood — partially understood
- hausdorff space — a topological space in which each pair of points can be separated by two disjoint open sets containing the points.
- have no use for — to employ for some purpose; put into service; make use of: to use a knife.
- heart of hearts — the depths of one's conscience or emotions
- heralds' office — the official heraldic authority of Scotland.
- house of prayer — house of God.