19-letter words containing i, o, n, a
- south san francisco — a city in central California.
- soviet central asia — the region of the former Soviet Union now occupied by Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, and Uzbekistan
- sow one's wild oats — any uncultivated species of Avena, especially a common weedy grass, A. fatua, resembling the cultivated oat.
- spaghetti bolognese — Italian dish of pasta and tomato sauce
- spanish inquisition — the Inquisition in Spain, under state control from 1480 to 1834, marked by the extreme severity and cruelty of its proceedings in the 16th century.
- speaking in tongues — a form of glossolalia in which a person experiencing religious ecstasy utters incomprehensible sounds that the speaker believes are a language spoken through him or her by a deity.
- specular reflection — Specular reflection is reflection of heat or light in which the angles of different parts of the surface are important.
- speculative fiction — a broad literary genre encompassing any fiction with supernatural, fantastical, or futuristic elements
- spherical astronomy — the branch of astronomy dealing with the determination of the positions of celestial bodies on the celestial sphere.
- spirit 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.
- splinterproof glass — glass that is designed not to form sharp splinters should it be shattered
- spread oneself thin — to draw, stretch, or open out, especially over a flat surface, as something rolled or folded (often followed by out).
- stabilization print — a print made by the stabilization process.
- staff-student ratio — the ratio of teachers to pupils or students in a school, college, or university
- stagnation mastitis — caked breast.
- stakeholder pension — In Britain, a stakeholder pension is a flexible pension scheme with low charges. Both employees and the state contribute to the scheme, which is optional, and is in addition to the basic state pension.
- stand in good stead — the place of a person or thing as occupied by a successor or substitute: The nephew of the queen came in her stead.
- standing broad jump — a jump for distance from a standing position.
- stanford university — (education) A University in the city of Palo Alto, California, noted for work in computing, especially artificial intelligence. See SAIL.
- stanford-binet test — a revised version of the Binet-Simon scale, prepared at Stanford University for use in the U.S.
- stanislavski method — method (def 5).
- stationary engineer — a person who runs or is licensed to run a stationary engine.
- stationers' company — a company or guild of the city of London composed of booksellers, printers, dealers in writing materials, etc., incorporated in 1557.
- stationery cupboard — a cupboard where things like paper, pens and paper clips are kept
- sternocleidomastoid — of, relating to, or involving the sternum, the clavicle, and the mastoid process.
- stick in one's craw — the crop of a bird or insect.
- stick to one's last — a wooden or metal form in the shape of the human foot on which boots or shoes are shaped or repaired.
- straight and narrow — the way of virtuous or proper conduct: After his release from prison, he resolved to follow the straight and narrow.
- straightforwardness — going or directed straight ahead: a straightforward gaze.
- streaming potential — the potential produced in the walls of a porous membrane or a capillary tube by forcing a liquid through it.
- strike a false note — to behave inappropriately
- sugar loaf mountain — a mountain in SE Brazil in Rio de Janeiro, at the entrance to Guanabara Bay. 1280 feet (390 meters).
- superannuation fund — a fund used for paying pensions
- suspended animation — a state of temporary cessation of the vital functions.
- suspensory ligament — any of several tissues that suspend certain organs or parts of the body, especially the transparent, delicate web of fibrous tissue that supports the crystalline lens.
- sympathetic contact — behavior toward an individual based on the individual's personal makeup rather than on his or her group membership.
- symptomatic anthrax — blackleg.
- synchronous machine — an alternating-current machine in which the average speed of normal operation is exactly proportional to the frequency of the system to which it is connected.
- take (the) occasion — to use the opportunity (to do something)
- take evasive action — If you take evasive action, you deliberately move away from someone or something in order to avoid meeting them or being hit by them.
- take it for granted — If you take it for granted that something is the case, you believe that it is true or you accept it as normal without thinking about it.
- take it on the chin — the lower extremity of the face, below the mouth.
- take one's medicine — any substance or substances used in treating disease or illness; medicament; remedy.
- take one's mind off — to stop one from thinking about; turn one's attention from
- talleyrand-perigord — Charles Maurice de [sharl moh-rees duh] /ʃarl moʊˈris də/ (Show IPA), Prince de Bénévent [duh bey-ney-vahn] /də beɪ neɪˈvɑ̃/ (Show IPA), 1754–1838, French statesman.
- taming of the shrew — a comedy (1594?) by Shakespeare.
- tangential-velocity — the component of the linear motion of a star with respect to the sun, measured along a line perpendicular to its line of sight and expressed in miles or kilometers per second.
- tanizaki jun-ichiro — 1886–1965, Japanese novelist, whose works, such as Some Prefer Nettles (1929) and The Makioka Sisters (1943–48), reflect the tension between Western values and Japanese traditions
- teaching fellowship — a fellowship providing a student in a graduate school with free tuition and expenses and stipulating that the student assume some teaching duties in return.
- tear one's hair out — the act of tearing.