17-letter words containing o, p, s, n, i
- spatial summation — the act or process of summing.
- speak one's piece — a separate or limited portion or quantity of something: a piece of land; a piece of chocolate.
- special constable — a person recruited for temporary or occasional police duties, esp in time of emergency
- special education — education that is modified or particularized for those with singular needs, as disabled or maladjusted people, slow learners, or gifted children.
- special schooling — the system of educating children with special needs in schools designed to meet their needs
- speech correction — the reeducation of speech habits that deviate from accepted speech standards.
- speed restriction — the maximum speed allowed for road vehicles, trains, or other vehicles
- spenserian sonnet — a sonnet employing the rhyme scheme abab, bcbc, cdcd, ee.
- sperrin mountains — a mountain range in NW Northern Ireland
- spherical polygon — a closed figure formed by arcs of great circles on a spherical surface.
- spin one's wheels — a circular frame or disk arranged to revolve on an axis, as on or in vehicles or machinery.
- spiny-headed worm — any of a small group of endoparasites of the phylum Acanthocephala, as larvae parasitic in insects and crustaceans and as adults in various vertebrates.
- spit in the ocean — a variety of poker in which four cards are dealt face down to each player and one card, forming the fifth for all hands, is dealt face up in the center of the table, the exposed card and others of its denomination being wild cards.
- split keyboarding — the act or practice of editing data from one terminal on another terminal
- split one's sides — to laugh very heartily
- split personality — multiple personality.
- spondylolisthesis — the forward displacement of a vertebra.
- spoonbill catfish — flathead catfish.
- spot-illustration — a rounded mark or stain made by foreign matter, as mud, blood, paint, ink, etc.; a blot or speck.
- spotted sandpiper — a North American sandpiper, Actitis macularia, that has brownish-gray upper parts and white underparts, and is spotted with black in the summer.
- spread your wings — if you spread your wings, you do something new and rather difficult or move to a new place, because you feel more confident in your abilities than you used to and you want to gain wider experience
- spring cankerworm — the striped, green caterpillar of any of several geometrid moths: a foliage pest of various fruit and shade trees, as Paleacrita vernata (spring cankerworm) and Alsophila pometaria (fall cankerworm)
- stand-up comedian — performer: tells jokes
- steamboat springs — a town in NW Colorado: ski resort.
- steamship company — a company which has a fleet of steamships
- stenothermophilic — growing best within a narrow temperature range.
- stir one's stumps — to move or become active
- storm in a teacup — a violent fuss or disturbance over a trivial matter
- subscription rate — the price charged for a subscription
- suction lipectomy — the removal of fatty tissue by making a small incision in the skin, loosening the fat layer, and withdrawing it by suction.
- super-nationalism — an extreme or fanatical loyalty or devotion to a nation.
- superaerodynamics — the branch of aerodynamics that deals with gases at very low densities.
- superalimentation — nourishment; nutrition.
- supercolumniation — the placing of one order of columns above another.
- superconductivity — the phenomenon of almost perfect conductivity shown by certain substances at temperatures approaching absolute zero. The recent discovery of materials that are superconductive at temperatures hundreds of degrees above absolute zero raises the possibility of revolutionary developments in the production and transmission of electrical energy.
- superregeneration — regeneration in which a signal is alternately amplified and quenched at a frequency slightly above the audible range to achieve high sensitivity with a single tube.
- superstitiousness — of the nature of, characterized by, or proceeding from superstition: superstitious fears.
- supervision order — an order by a juvenile court requiring a named probation officer or local-authority social worker to advise, assist, and befriend a child or young person who is the subject of care proceedings, over a period of up to three years
- support mechanism — any formal system or method of providing support or assistance
- supra-nationalism — outside or beyond the authority of one national government, as a project or policy that is planned and controlled by a group of nations.
- surprise symphony — the Symphony No. 94 in G major (1791) by Franz Josef Haydn.
- suspension bridge — a bridge having a deck suspended from cables anchored at their extremities and usually raised on towers.
- suspension points — a group of dots, usually three, used in written material to indicate the omission of a word or words
- synthetic phonics — a method of teaching people to read by training them to pronounce sounds associated with particular letters in isolation and then blend them together
- take no prisoners — to be uncompromising and resolute in one's actions
- take-no-prisoners — wholeheartedly aggressive; zealous; gung-ho: a businessman with a take-no-prisoners attitude toward dealmaking.
- teaching hospital — a hospital associated with a medical college and offering clinical and other facilities to those in various areas of medical study, as students, interns, and residents.
- technical support — an advising and troubleshooting service provided by a manufacturer, typically a software or hardware developer, to its customers, often online or on the telephone.
- teething problems — If a project or new product has teething problems, it has problems in its early stages or when it first becomes available.
- telephone service — a company or public utility that provides a telephone-operating service