20-letter words containing o, n, r, f
- clothes manufacturer — a business concern that manufactures clothes
- college of cardinals — the collective body of cardinals having the function of electing and advising the pope
- commissioned officer — a military officer holding a commission, such as Second Lieutenant in the British Army, Acting Sub-Lieutenant in the Royal Navy, Pilot Officer in the Royal Air Force, and officers of all ranks senior to these
- committee of inquiry — (in parliament) a group set up to investigate something
- confectioners' sugar — Confectioners' sugar is very fine white sugar that is used for making icing and candy.
- conference committee — a committee made up of members from both houses whose task is to eliminate any differences between versions of legislation on the same subject passed in the different chambers
- conferencing over ip — (communications, standard) (CoIP) Standards for the transmission of multimedia over the Internet. CoIP extends VoIP (voice over Internet Protocol) with text, images, video. The main CoIP standard is based on H.323. The VoIP forum of the IMTC merged with the H.323 Activity Group in January 1999 to form the Conferencing over IP (CoIP) Activity Group. VoIP uses "VoIP Devices" as gateways to route voice data packets over the Internet or PSTN. Protocols such as SGCP and its successor MGCP extend VoIP to handle media other than voice data.
- conflict of interest — a conflict between one's obligation to the public good and one's self-interest, as in the case of a public officeholder who owns stock in a company seeking government contracts
- conformal projection — a map projection in which angles formed by lines are preserved: a map made using this projection preserves the shape of any small area.
- conservation of mass — the principle that the total mass of any isolated system is constant and is independent of any chemical and physical changes taking place within the system
- contempt of congress — contempt of a U.S. Congressional body, as of an investigating committee, shown by a witness summoned or appearing before it.
- context-free grammar — (grammar) (CFG) A grammar where the syntax of each constituent (syntactic category or terminal symbol) is independent of the symbols occuring before and after it in a sentence. A context-free grammar describes a context-free language. Context-free grammars can be expressed by a set of "production rules" or syntactic rules. For example, a language with symbols "a" and "b" that must occur in unequal numbers can be represented by the CFG: S → U | V U → TaU | TaT | UaT V → TbV | TbT | VbT T → aTbT | bTaT | ε meaning the top-level category "S" consists of either a "U" or a "V" and so on. The special category "ε" represents the empty string. This grammar is context-free because each rule has a single symbol on its left-hand side.
- coroneted fruit dove — a brightly coloured bird of the Columbidae family with a distinctive marking on its head, found in Indonesia and Papua new Guinea
- correctional officer — a prison guard
- corruption of minors — the criminal offence of inducing people below the age of consent to engage in sexual activity
- council of ministers — the EU's most important decision-making body
- council of the reich — the Reichsrat.
- counter-inflationary — designed to reduce inflation
- counterproliferation — Action intended to prevent an increase or spread in the possession of nuclear weapons.
- covenant of warranty — warranty (def 2b).
- covenant-of-warranty — warranty (def 2b).
- crisis of confidence — a serious loss of confidence
- data dictionary file — (database) (DDF) A set of files describing the structure of a database file. DDFs define database tables and include information about file locations, field layouts and indexes. DDFs are the standard method for defining field and index characteristics for Btrieve files.
- de facto segregation — racial, ethnic, or other segregation resulting from societal differences between groups, as socioeconomic or political disparity, without institutionalized legislation intended to segregate.
- defender of the bond — an official appointed in each diocese to uphold marriages of disputed validity.
- defense data network — (DDN) A global communications network serving the US Department of Defense. Composed of MILNET, other portions of the Internet, and classified networks which are not part of the Internet. The DDN is used to connect military installations and is managed by the Defense Information Systems Agency.
- definite description — a description that is modified by the definite article or a possessive, such as the woman in white or Rosemary's baby
- department of energy — the department of the U.S. federal government that sets forth and maintains the national energy policy, including energy conservation, environmental protection, etc. Abbreviation: DOE.
- department of health — government ministry for health matters
- difference threshold — the minimum difference between two stimuli that is just detectable by a person
- differential housing — the casing that houses the differential of a motor vehicle
- dirac delta function — delta function.
- double fertilization — the fertilization process characteristic of flowering plants, in which one sperm cell of a pollen grain fertilizes an egg cell while a second fuses with two polar nuclei to produce a triploid body that gives rise to the endosperm.
- ecological footprint — a mark left by the shod or unshod foot, as in earth or sand.
- edward the confessor — Saint, 1002?–66, English king 1042–66: founder of Westminster Abbey.
- eleanor of aquitaine — ?1122–1204, queen of France (1137–52) by her marriage to Louis VII and queen of England (1154–89) by her marriage to Henry II; mother of the English kings Richard I and John
- electrode efficiency — the ratio of the amount of metal deposited in an electrolytic cell to that theoretically deposited according to Faraday's laws
- electronic footprint — data that identifies a computer that has connected to a particular website
- elizabeth of hungary — Saint. 1207–31, Hungarian princess who devoted herself to charity and asceticism. Feast day: Nov 17 and 19
- embryo vitrification — a method of in vitro fertilization in which the embryo is exposed to a vitreous solution and frozen before being thawed and implanted into the uterus
- entry qualifications — the qualifications people wishing to enter an organization, university, etc, have to have
- equity of redemption — the right that a mortgager has in equity to redeem his property on payment of the sum owing, even though the sum is overdue
- erythema infectiosum — a mild infectious disease of childhood, caused by a virus, characterized by fever and a red rash spreading from the cheeks to the limbs and trunk
- european social fund — one of the four Structural Funds of the European Union which aims to support employment and the economic and social well-being of EU member countries
- factor in (or into) — to include as a factor
- factor of production — any instrument, agent, etc., employed in the production of goods and services.
- feast of tabernacles — Sukkoth.
- feather in one's cap — one of the horny structures forming the principal covering of birds, consisting typically of a hard, tubular portion attached to the body and tapering into a thinner, stemlike portion bearing a series of slender, barbed processes that interlock to form a flat structure on each side.
- federal constitution — Constitution of the United States.
- federal reserve note — a form of paper money issued by a Federal Reserve Bank.