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20-letter words containing r, f, i

  • refuse disposal unit — a unit or part of a sink that disposes of waste food, etc, by grinding
  • regenerative furnace — a furnace in which the incoming air is heated by regenerators.
  • republic of maldives — a republic occupying an archipelago of 1087 coral islands in the Indian Ocean, southwest of Sri Lanka: came under British protection in 1887; became independent in 1965 and a republic in 1968; member of the Commonwealth (1982–2016). The economy and infrastructure were severely damaged in the Indian Ocean tsunami of December 2004. Official language: Divehi. Official religion: (Sunni) Muslim. Currency: rufiyaa. Capital: Malé. Pop: 393 988 (2013 est). Area: 298 sq km (115 sq miles)
  • restriction fragment — a length of DNA cut from the strand by a restriction enzyme.
  • return of the native — a novel (1878) by Thomas Hardy.
  • ring of the nibelung — Richard Wagner's tetralogy of music dramas: Das Rheingold (completed 1869), Die Walküre (completed 1870), Siegfried (completed 1876), and Götterdämmerung (completed 1876): the cycle was first performed at Bayreuth, 1876.
  • ring wall foundation — A ring wall foundation is a base made of concrete, used to put large tanks on.
  • ringing off the hook — If your phone is ringing off the hook, so many people are trying to telephone you that it is ringing constantly.
  • rotary-wing aircraft — an aircraft, esp a helicopter, that is lifted or propelled by rotating airfoils
  • royal air force list — an official list of all serving commissioned officers of the RAF and reserve officers liable for recall
  • saint anthony's fire — any of certain skin conditions that are of an inflammatory or gangrenous nature, as erysipelas, hospital gangrene, or ergotism.
  • sarcastic fringehead — any fish of the genus Neoclinus, characterized by a row of fleshy processes on the head, as N. blanchardi (sarcastic fringehead) of California coastal waters.
  • sb's future lies swh — If you say that someone's future lies in a particular place or activity, you think they will be most successful or happy in that place or doing that activity.
  • self-differentiating — to form or mark differently from other such things; distinguish.
  • senior aircraftwoman — a rank in the Royal Air Force comparable to that of a private in the army, though not the lowest rank in the Royal Air Force
  • separation of powers — the principle or system of vesting in separate branches the executive, legislative, and judicial powers of a government.
  • sergeant first class — a noncommissioned officer ranking next above a staff sergeant and below a first or master sergeant.
  • serious fraud office — a UK government office responsible for investigating and prosecuting serious fraud cases
  • shear transformation — a map of a coordinate space in which one coordinate is held fixed and the other coordinate or coordinates are shifted.
  • sinfonia concertante — a type of concerto for two or more solo instruments accompanied by an orchestra
  • sing for your supper — If someone has to sing for their supper, they have to do a job before they are allowed to do something they want to do.
  • small craft advisory — a U.S. National Weather Service advisory of sustained winds, over coastal and inland waters, with speeds of 20–33 knots (23–38 mph, 10–17 m/sec). Regional NWS offices have discretion over the choice of the lower limit.
  • snowflake generation — the generation of people who became adults in the 2010s, viewed as being less resilient and more prone to taking offence than previous generations
  • snows of kilimanjaro — a short story (1936) by Ernest Hemingway.
  • sodium fluoroacetate — a white, amorphous, water-soluble, poisonous powder, C 2 H 2 FO 2 Na, used as a rodenticide.
  • software engineering — the process of writing computer programs
  • solitary confinement — the confinement of a prisoner in a cell or other place in which he or she is completely isolated from others.
  • span of apprehension — the maximum number of objects that can be correctly assessed after a brief presentation
  • spanish west african — of or relating to the former Spanish overseas territory of Spanish West Africa (now the overseas provinces of Ifni and Spanish Sahara) or its inhabitants
  • specific performance — (especially in the sale of land) literal compliance with one's contractual promises pursuant to a judicial mandate.
  • spiral of archimedes — a curve that is the locus of a point that moves outward with uniform speed along a vector, beginning at the origin, while the vector rotates about the origin with uniform angular velocity. Equation (in polar coordinates): r = aθ.
  • spirit of enterprise — the motivation to set up and succeed in business or commerce
  • spirits of hartshorn — a colorless, pungent, suffocating, aqueous solution of about 28.5 percent ammonia gas: used chiefly as a detergent, for removing stains and extracting certain vegetable coloring agents, and in the manufacture of ammonium salts.
  • split the difference — the state or relation of being different; dissimilarity: There is a great difference between the two.
  • spread like wildfire — If something, especially news or a rumour, spreads like wildfire, it spreads extremely quickly.
  • square of opposition — a diagrammatic representation of the opposition of categorical propositions.
  • squirrel's-foot fern — ball fern.
  • stare sb in the face — If a situation or the answer to a problem is staring you in the face, it is very obvious, although you may not be immediately aware of it.
  • strike off the rolls — to expel from membership
  • surface-active agent — any substance that when dissolved in water or an aqueous solution reduces its surface tension or the interfacial tension between it and another liquid.
  • symmetric difference — the union of the relative complements of two sets.
  • tax-deferred annuity — an annuity that enables one to purchase an insurance product that will earn interest, with the tax obligation deferred until withdrawals begin, usually at retirement. Abbreviation: TDA.
  • the founding fathers — any of the men who were members of the U.S. Constituional Convention of 1787
  • the gnomes of zurich — Swiss bankers and financiers
  • the legal profession — the profession of law
  • the price of someone — what someone deserves, esp a fitting punishment
  • theory of everything — a theory intended to show that the electroweak, strong, and gravitational forces are components of a single quantized force.
  • theory of relativity — relativity (def 2).
  • there is no call for — If you say that there is no call for someone to behave in a particular way, you are criticizing their behaviour, usually because you think it is rude.
  • theresa of avila, st — Saint. Also, Teresa. Also called Theresa of Avila [ah-vee-lah] /ˈɑ viˌlɑ/ (Show IPA), 1515–82, Spanish Carmelite nun, mystic, and writer.
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