20-letter words containing n, a
- st. george's channel — a channel between Wales and Ireland, connecting the Irish Sea and the Atlantic. 100 miles (160 km) long; 50–90 miles (81–145 km) wide.
- st. james-assiniboia — a city in SE Manitoba, in S central Canada: suburb of Winnipeg.
- st.-germain-des-pres — an area in Paris, on the Left Bank.
- staff sergeant major — a noncommissioned officer equivalent in rank to a command sergeant major but having no command responsibility.
- stained glass window — a window made of coloured glass, often showing religious pictures and usually seen in churches
- stallman, richard m. — Richard Stallman
- standard book number — International Standard Book Number. Abbreviation: SBN.
- standstill agreement — law: between company and bidder
- star spangled banner — Stars and Stripes.
- star-spangled banner — Stars and Stripes.
- 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.
- state enrolled nurse — a nurse with training and examinations enabling him or her to perform many nursing services
- state representative — a person elected by a state to be a member of the House of Representatives
- ste. anne de beaupre — a village in S Quebec, in SE Canada, on the St. Lawrence, NE of Quebec: Roman Catholic shrine.
- steak and kidney pie — meat pastry
- stefan-boltzmann law — the law stating that the total energy radiated from a blackbody is proportional to the fourth power of its absolute temperature.
- step into the breach — If you step into the breach, you do a job or task which someone else was supposed to do or has done in the past, because they are suddenly unable to do it.
- storage area network — (storage) (SAN) A high-speed subnetwork of shared storage devices. A storage device is a machine that contains nothing but a disk or disks for storing data. A SAN's architecture works in a way that makes all storage devices available to all servers on a LAN or WAN. As more storage devices are added to a SAN, they too will be accessible from any server in the larger network. The server merely acts as a pathway between the end user and the stored data. Because stored data does not reside directly on any of a network's servers, server power is used for business applications, and network capacity is released to the end user.
- straight as an arrow — direct, unwavering
- stress concentration — A stress concentration in a solid is a place where there is a lot of stress, either because a force is applied in a particular area or there is a change in the cross-sectional area.
- strong nuclear force — an interaction between elementary particles responsible for the forces between nucleons in the nucleus. It operates at distances less than about 10–15 metres, and is about a hundred times more powerful than the electromagnetic interaction
- subpoena duces tecum — a writ directing a person to appear in court and to bring some document described in the writ.
- subscription library — a commercial lending library
- suitland-silver hill — a city in central Maryland, near Washington, D.C.
- summary jurisdiction — the right a court has to adjudicate immediately upon some matter arising during its proceedings
- summative assessment — general assessment of a pupil's achievements over a range of subjects by means of a combined appraisal of formative assessments
- sunday-go-to-meeting — most presentable; best: Sunday-go-to-meeting clothes.
- supersonic transport — a commercial jet airplane that can fly faster than the speed of sound. Abbreviation: SST.
- supplemental plumage — the third plumage assumed by certain birds having three different plumages in their annual cycle of molts.
- supplementary angles — either of two angles that added together produce an angle of 180°.
- 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.
- surveillance society — a society where surveillance technology is widely used to monitor people's everyday activities
- swan's neck pediment — a broken pediment, the outline of which consists of a pair of S -curves tangent to the cornice level at the ends of the pediment, rising to a pair of scrolls on either side of the center, where a finial often rises between the scrolls.
- sweat one's guts out — to work very hard
- sweetheart agreement — a contract made through collusion between management and labor representatives containing terms beneficial to management and detrimental to union workers.
- synchronized skating — the art or sport of teams of up to twenty skaters holding onto each other and moving in patterns in time to music
- synchronous rotation — rotation of a satellite in which the period of rotation is equal to the period of orbit around its primary, leaving the same face always pointing toward the primary: The moon is in synchronous rotation about the earth.
- system international — Système International d'Unités
- systemic circulation — the circulatory system in general.
- tactical air command — a U.S. Air Force command supplying direct air support to U.S. Army ground combat units.
- take into one's head — the upper part of the body in humans, joined to the trunk by the neck, containing the brain, eyes, ears, nose, and mouth.
- take pity on someone — If you take pity on someone, you feel sorry for them and help them.
- take something amiss — to be annoyed or offended by something
- take to the cleaners — a person who cleans, especially one whose regular occupation is cleaning offices, buildings, equipment, etc.
- take up a collection — to get into one's hold or possession by voluntary action: to take a cigarette out of a box; to take a pen and begin to write.
- take up the gauntlet — to accept a challenge
- talavera de la reina — a city in central Spain, on the Tagus River: British and Spanish defeat of the French 1809.
- tangent galvanometer — a type of galvanometer having a vertical coil of wire with a horizontal magnetic needle at its centre. The current to be measured is passed through the coil and produces a proportional magnetic field which deflects the needle
- 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.
- tchebycheff equation — a differential equation of the form (1 − x 2) d 2 y/dx 2 − x dy/dx + n 2 y = 0, where n is any nonnegative integer.