15-letter words containing w, a, t, s, o, n
- stationary wave — standing wave.
- strawberry roan — a horse with a reddish coat that is liberally flecked with white hairs.
- streamline flow — the flow of a fluid past an object such that the velocity at any fixed point in the fluid is constant or varies in a regular manner.
- sunflower state — Kansas (used as a nickname).
- swallow-tanager — a tropical American bird, Tersina viridis, related to the true tanagers but with longer, swallowlike wings.
- swing both ways — to enjoy sexual partners of both sexes
- take one's word — a unit of language, consisting of one or more spoken sounds or their written representation, that functions as a principal carrier of meaning. Words are composed of one or more morphemes and are either the smallest units susceptible of independent use or consist of two or three such units combined under certain linking conditions, as with the loss of primary accent that distinguishes black·bird· from black· bird·. Words are usually separated by spaces in writing, and are distinguished phonologically, as by accent, in many languages.
- thankworthiness — the state or quality of being thankworthy or deserving thanks
- the lower ranks — people who have a low rank in a military organization
- thorndike's law — the principle that all learnt behaviour is regulated by rewards and punishments, proposed by Edward Lee Thorndike (1874–1949), US psychologist
- towers of hanoi — (games) A classic computer science problem, invented by Edouard Lucas in 1883, often used as an example of recursion. "In the great temple at Benares, says he, beneath the dome which marks the centre of the world, rests a brass plate in which are fixed three diamond needles, each a cubit high and as thick as the body of a bee. On one of these needles, at the creation, God placed sixty-four discs of pure gold, the largest disc resting on the brass plate, and the others getting smaller and smaller up to the top one. This is the Tower of Bramah. Day and night unceasingly the priests transfer the discs from one diamond needle to another according to the fixed and immutable laws of Bramah, which require that the priest on duty must not move more than one disc at a time and that he must place this disc on a needle so that there is no smaller disc below it. When the sixty-four discs shall have been thus transferred from the needle on which at the creation God placed them to one of the other needles, tower, temple, and Brahmins alike will crumble into dust, and with a thunderclap the world will vanish." The recursive solution is: Solve for n-1 discs recursively, then move the remaining largest disc to the free needle. Note that there is also a non-recursive solution: On odd-numbered moves, move the smallest sized disk clockwise. On even-numbered moves, make the single other move which is possible.
- transfer window — the period during the year in which a football club can transfer players from other teams into their own
- twist one's arm — to combine, as two or more strands or threads, by winding together; intertwine.
- two-dimensional — having the dimensions of height and width only: a two-dimensional surface.
- unseaworthiness — constructed, outfitted, manned, and in all respects fitted for a voyage at sea.
- washington lily — a lily, Lilium washingtonianum, of the western coast of the U.S., having whorled leaves and fragrant, purple-spotted white flowers.
- washington palm — a palm tree, Washingtonia filifera, of California and Florida, having large fan-shaped leaves and small black fruits
- weather station — an installation equipped and used for meteorological observation.
- wentworth scale — a scale for specifying the sizes (diameters) of sedimentary particles, ranging from clay particles (less than 1⁄256 mm) to boulders (over 256 mm)
- west carrollton — a town in W Ohio.
- whaling station — a place where the carcases of whales were processed
- what's cooking? — what's happening?
- whip into shape — to bring by vigorous action into the proper or desired condition
- white cast iron — cast iron having most or all of its carbon in the form of cementite and exhibiting a silvery fracture.
- white mountains — a mountain range in the US, chiefly in N New Hampshire: part of the Appalachians. Highest peak: Mount Washington, 1917 m (6288 ft)
- white snakeroot — a North American plant, Eupatorium urticaefolium, the roots or rhizomes of which have been used as a remedy for snakebite
- winter holidays — a period of rest from work or studies taken in winter
- witch of agnesi — a plane curve symmetrical about the y- axis and asymptotic to the x- axis, given by the equation x 2 y =4 a 2 (2 a − y).
- wolverine state — Michigan (used as a nickname).
- worcester china — porcelain articles made in Worcester (England) from 1751 in a factory that became, in 1862, the Royal Worcester Porcelain Company
- working storage — the amount of memory used to temporarily store results or other data while a program is running.
- wrongful arrest — the act of arresting someone without proper reason