15-letter words containing o, f, a
- flannel-mouthed — speaking thickly, as if one's mouth were full of flannel
- flannelled fool — a cricketer
- flapping router — (networking) A router that transmits routing updates alternately advertising a destination network first via one route, then via a different route. Flapping routers are identified on more advanced protocol analysers such as the Network General (TM) Sniffer.
- flatter oneself — to hold the self-satisfying or self-deluding belief (that)
- flavor enhancer — a substance added to food in order to enhance or intensify its flavor: Salt is a common flavor enhancer.
- 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.
- flesh and blood — offspring or relatives: one's own flesh and blood.
- flight of fancy — An idea or statement that is very imaginative but complicated, silly, or impractical can be referred to as a flight of fancy.
- flight of ideas — a rapid flow of thought, manifested by accelerated speech with abrupt changes from topic to topic: a symptom of some mental illnesses, especially manic disorder.
- flirtatiousness — The quality of being flirtatious.
- floating charge — an unsecured charge on the assets of an enterprise that allows such assets to be used commercially until the enterprise ceases to operate or the creditor intervenes to demand collateral
- floating island — a dessert consisting of boiled custard with portions of meringue, whipped cream, or whipped egg whites and sometimes jelly floating upon it or around it.
- floating policy — (in marine insurance) a policy that provides protection of a broad nature for shipments of merchandise and that is valid continuously until canceled.
- floating screed — Building Trades. screed (def 3).
- floating supply — the aggregate supply of ready-to-market goods or securities.
- flock wallpaper — a type of wallpaper with a raised pattern
- 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 envelope — the calyx and corolla of a flower.
- floral tributes — bunches or arrangements of flowers left as a memorial at the site of a fatal incident
- florida current — the part of the Gulf Stream which extends from the Florida Strait to Cape Hatteras.
- flowering maple — any of various shrubs belonging to the genus Abutilon, of the mallow family, having large, bright-colored flowers.
- 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.
- fluorochemicals — Plural form of fluorochemical.
- fluorophosphate — a salt or ester of a fluorophosphoric acid.
- fly-on-the-wall — A fly-on-the-wall documentary is made by filming people as they do the things they normally do, rather than by interviewing them or asking them to talk directly to the camera.
- fob destination — FOB destination is a shipping term indicating that ownership of goods passes at delivery to their destination, and the seller has total responsibility until then.
- focal infection — an infection in which bacteria are localized in some region, as the tonsils or the tissue around a tooth, from which they may spread to some other organ or structure of the body.
- fool's paradise — a state of enjoyment based on false beliefs or hopes; a state of illusory happiness.
- foolscap octavo — a book size, 41⁄4 by 63⁄4 inches
- foolscap quarto — a book size, 63⁄4 by 81⁄2 inches (foolscap quarto)
- football ground — an area of land where football games are played
- football league — highest-level soccer competition
- football player — sportsperson: plays football
- football season — annual period when soccer is played
- for a certainty — without doubt
- for a rainy day — If you say that you are saving something, especially money, for a rainy day, you mean that you are saving it until a time in the future when you might need it.
- 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 that matter — the substance or substances of which any physical object consists or is composed: the matter of which the earth is made.
- 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.
- force de frappe — a military strike force, esp the independent nuclear strike force of France
- fore-topgallant — being a sail, yard, or rigging belonging to a fore-topgallant mast.
- forecastle deck — a partial weather deck on top of a forecastle superstructure; topgallant forecastle.
- forecastle head — the extreme fore part of a forecastle superstructure.