23-letter words containing a, p, o, i, n
- saint christopher-nevis — St. Kitts-Nevis.
- schizotypal personality — a personality disorder characterized by a group of symptoms similar to but less severe than schizophrenia, as odd behavior, peculiar thinking, and social isolation.
- scottish national party — a political party advocating the independence of Scotland, founded in 1934
- separation of variables — a grouping of the terms of an ordinary differential equation so that associated with each differential is a factor consisting entirely of functions of the independent variable appearing in the differential.
- silicone breast implant — silicone filled bags that are implanted into a woman in order to increase the size of her breasts
- social security payment — a payment of social security made to an individual
- somaliland protectorate — official name of the former British Somaliland.
- specialite de la maison — the specialty of the house (used in referring to the most important dish served by a restaurant).
- spigot and socket joint — a joint between two pipes using male and female parts
- st. pierre and miquelon — two small groups of islands off the S coast of Newfoundland: an overseas territory of France; important base for fishing. 3 sq. mi. (240 sq. km). Capital: St. Pierre.
- statutory maternity pay — the maternity pay a woman is legally entitled to
- sustainable development — supporting economy via renewable resources
- the data protection act — a United Kingdom act of parliament designed to ensure the proper handling of information stored about individuals on computers and entitling individuals to find out what information is stored about them
- the metropolitan police — the police organization that is responsible for Greater London, excluding the City of London
- the scottish parliament — the devolved national legislature of Scotland, located in Edinburgh
- the teaching profession — the profession of a teacher
- thompson submachine gun — a portable, .45-caliber, automatic weapon designed to be fired from the shoulder or hip.
- to jump to a conclusion — If you say that someone jumps to a conclusion, you are critical of them because they decide too quickly that something is true, when they do not know all the facts.
- to keep a tight rein on — If you keep a tight rein on someone, you control them firmly.
- to send someone packing — If you send someone packing, you make them go away.
- to win the popular vote — to get a majority as regards the votes cast by individual voters
- to wipe the slate clean — If you wipe the slate clean, you decide to forget previous mistakes, failures, or debts and to start again.
- topological equivalence — the property of two topological spaces such that there is a homeomorphism from one to the other.
- transplantation antigen — a histocompatibility antigen identified by its effect on the rejection of transplanted cells or tissues.
- transverse presentation — presentation in which the fetus is turned with its long axis across the mouth of the uterus, at right angles to the axis of the birth canal.
- triple expansion engine — (formerly) a steam engine in which the steam is expanded in three stages in cylinders of increasing diameter to accommodate the increasing volume of the steam
- turn-and-slip indicator — bank-and-turn indicator.
- unincorporated business — a privately owned business, often owned by one person who has unlimited liability as the business is not legally registered as a company
- unipress software, inc. — (company) A developer and distributor of Unix software. They produce PC-UNIX connectivity software, development tools and applications and provide technical support and maintenance, porting services, training and consulting.
- variable contrast paper — printing paper in which the contrast of the image is controlled by the color of the printing light.
- virtual private network — (networking, security) (VPN) The use of encryption in the lower protocol layers to provide a secure connection through an otherwise insecure network, typically the Internet. VPNs are generally cheaper than real private networks using private lines but rely on having the same encryption system at both ends. The encryption may be performed by firewall software or possibly by routers. Link-level (layer 2 and 3) encryption provides extra protection by encrypting all of each datagram except the link-level information. This prevents a listener from obtaining information about network structure. While link-level encryption prevents traffic analysis (a form of attack), it must encrypt/decrypt on every hop and every path. Protocol-level encryption (layer 3 and 4) encryption encrypts protocol data but leaves protocol and link headers clear. While protocol-level encryption requires you to encrypt/decrypt data only once, and it encrypts/decrypts only those sessions that need it, headers are sent as clear text, allowing traffic analysis. Application (layer 5 up) encryption is based on a particular application and requires that the application be modified to incorporate encryption.
- volumetric displacement — the volume of air per revolution that passes through a mechanical pump when the pressure at the intake and the exhaust is the same as that of the atmosphere
- voyageurs national park — a national park in N Minnesota. 343 sq. mi. (888 sq. km).
- war manpower commission — the board (1942–45) that regulated the most efficient use of labor during World War II. Abbreviation: WMC.
- weak accumulation point — accumulation point.
- when the chips are down — a small, slender piece, as of wood, separated by chopping, cutting, or breaking.
- whet someone's appetite — If someone or something whets your appetite for a particular thing, they increase your desire to have it or know about it, especially by giving you an idea of what it is like.
- white-coat hypertension — the phenomenon of having elevated blood pressure only during a medical consultation
- wind cave national park — a national park in SW South Dakota. 41½ sq. mi. (107 sq. km).
- wordperfect corporation — (company) The original developers of the WordPerfect word processor and a variety of other applications for personal computers. WordPerfect was founded in Provo, Utah, USA in 1979 by Alan Ashton and Bruce Bastion as "Satellite Software International". The company name was changed to Wordperfect Corporation in 1986. The company was bought by Novell, Inc. in 1994, who then sold it to Corel Corporation in 1996.