7-letter words containing o, p, s, i
- rosehip — hip2 .
- sampaio — Jorge, 1939–2010, president of Portugal 1996–2006.
- saponin — any of a group of amorphous glycosides of terpenes and steroids, occurring in many plants, characterized by an ability to form emulsions and to foam in aqueous solutions, and used as detergents.
- scoping — extent or range of view, outlook, application, operation, effectiveness, etc.: an investigation of wide scope.
- scorpio — Astronomy. Scorpius.
- semipro — semiprofessional
- senopia — the improvement of near-sight often accompanying old age due to nuclear sclerosis
- serpigo — (formerly) a creeping or spreading skin disease, as ringworm.
- shapiro — Karl (Jay) 1913–2000, U.S. poet and editor.
- shipboy — ship's boy.
- shippon — a cow barn or cattle shed.
- simplon — a mountain pass in S Switzerland, in the Lepontine Alps: crossed by a carriage road constructed 1800–06 on Napoleon's orders. 6592 feet (2010 meters) high.
- simpson — James Young, 1811–70, Scottish professor of obstetrics and obstetrician: pioneer in use of ether and chloroform as anesthetics.
- sinopia — a reddish pigment derived from iron ore
- sinopis — a red ocher, used from antiquity to the Middle Ages.
- siphnos — a Greek island in the SW Aegean Sea, in the Cyclades group: gold and silver mines. 28 sq. mi. (75 sq. km).
- skipton — a market town in N England, in North Yorkshire: 11th-century castle. Pop: 14 313 (2001)
- slip-on — made without buttons, straps, zippers, etc., so as to be put on easily and quickly: a slip-on blouse; slip-on shoes.
- slipout — an instance of slipping out
- sloping — to have or take an inclined or oblique direction or angle considered with reference to a vertical or horizontal plane; slant.
- soliped — solidungulate.
- sonship — the state, fact, or relation of being a son.
- sophies — a female given name.
- sophism — a specious argument for displaying ingenuity in reasoning or for deceiving someone.
- sophist — (often initial capital letter) Greek History. any of a class of professional teachers in ancient Greece who gave instruction in various fields, as in general culture, rhetoric, politics, or disputation. a person belonging to this class at a later period who, while professing to teach skill in reasoning, concerned himself with ingenuity and specious effectiveness rather than soundness of argument.
- sopping — soaked; drenched: Her clothes were sopping from the rain.
- sopwith — Sir Thomas Octave Murdoch. 1888–1989, British aircraft designer, who built the Sopwith Camel biplane used during World War I. He was chairman (1935–63) of the Hawker Siddeley Group, which developed the Hurricane fighter
- soupfin — a requiem shark, Galeorhinus zyopterus, inhabiting the Pacific Ocean, valued for its fins, which are used by the Chinese in the preparation of a soup, and for its liver, which is rich in vitamin A.
- sparoid — resembling or pertaining to the porgy family, Sparidae.
- spinode — cusp (def 3).
- spinoff — the act of causing a spinning or whirling motion.
- spinose — full of spines; spiniferous; spinous.
- spinous — covered with or having spines; thorny, as a plant.
- spinout — a spinning slide or skid by a motor vehicle that is out of control
- spinoza — Baruch [buh-rook] /bəˈruk/ (Show IPA), or Benedict de [ben-uh-dikt duh] /ˈbɛn ə dɪkt də/ (Show IPA), 1632–77, Dutch philosopher.
- spiroid — more or less spiral; resembling a spiral.
- spitbol — SPeedy ImplemenTation of snoBOL. "Macro SPITBOL - A SNOBOL4 Compiler", R.B.K. Dewar et al, Soft Prac & Exp 7:95-113, 1971. Current versions: SPITBOL-68000, Sparc SPITBOL from Catspaw Inc, (719)539-3884.
- spodium — a fine black powder formed by calcination
- spoiled — to damage severely or harm (something), especially with reference to its excellence, value, usefulness, etc.: The water stain spoiled the painting. Drought spoiled the corn crop.
- spoiler — a person or thing that spoils.
- spoking — a simple past tense of speak.
- spongin — a scleroprotein occurring in the form of fibers that form the skeleton of certain sponges.
- sporing — Biology. a walled, single- to many-celled, reproductive body of an organism, capable of giving rise to a new individual either directly or indirectly.
- sporoid — of or like a spore
- sportif — sporty
- spotlit — a strong, focused light thrown upon a particular spot, as on a small area of a stage or in a television studio, for making some object, person, or group especially conspicuous.
- spottie — a young deer of up to three months of age
- spumoni — an Italian style of ice cream of a very fine and smooth texture, usually containing layers of various colors and flavors and chopped fruit or nuts.
- stompie — a cigarette butt
- stop in — to cease from, leave off, or discontinue: to stop running.