15-letter words containing w, a, i, l, s
- rolling meadows — a city in NE Illinois, near Chicago.
- rowland heights — a city in SW California, near Los Angeles.
- senior wrangler — (at Cambridge University) a candidate who has obtained first-class honours in Part II of the mathematics tripos and got the highest marks
- sewage disposal — waste processing
- sidewalk artist — an artist who draws pictures on the sidewalk, especially with colored chalk, as a means of soliciting money from passers-by.
- south milwaukee — a city in SE Wisconsin.
- sparkling water — soda water (def 1).
- stacking swivel — a metal swivel attached to the stock of a military rifle for use in hooking three rifles together to form a stack.
- stalactite work — (in Islamic architecture) intricate decorative corbeling in the form of brackets, squinches, and portions of pointed vaults.
- starfish flower — carrion flower (def 2).
- 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.
- thorndike's law — the principle that all learnt behaviour is regulated by rewards and punishments, proposed by Edward Lee Thorndike (1874–1949), US psychologist
- titius-bode law — Bode's law.
- training wheels — a pair of small wheels attached one on each side of the rear wheel of a bicycle for stability while one is learning to ride.
- two-dimensional — having the dimensions of height and width only: a two-dimensional surface.
- unanswerability — the quality of not being answerable or contestable
- vatican swindle — Lafcadio's Adventures.
- walking catfish — an Asian catfish, Clarias batrachus, that can survive out of water and move overland from one body of water to another: introduced into Florida.
- wallpaper music — music that is pleasant but not interesting, so people do not pay much attention to it
- walpurgis night — (especially in medieval German folklore) the evening preceding the feast day of St. Walpurgis, when witches congregated, especially on the Brocken.
- washing-up bowl — plastic bowl used for washing dishes
- 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
- welfare statism — the belief in or practices of a welfare state.
- well-advertised — to announce or praise (a product, service, etc.) in some public medium of communication in order to induce people to buy or use it: to advertise a new brand of toothpaste.
- westphalian ham — a hard German ham with a distinctive flavor derived from being smoked over beechwood and juniper.
- whaling station — a place where the carcases of whales were processed
- whatshumacallit — Alternative form of whatchamacallit.
- wheelchair user — a person who is unable to walk through injury, illness, etc and relies on a wheelchair to move around
- whiplash injury — the lash of a whip.
- wide-angle lens — A wide-angle lens is a lens which allows you to photograph a wider view than a normal lens.
- wild strawberry — uncultivated plant bearing red fruit
- wilderness area — a region whose natural growth is protected by legislation and whose recreational and industrial use is restricted.
- wilderness road — a 300-mile (500-km) route from eastern Virginia through the Cumberland Gap into Kentucky, explored by Daniel Boone in 1769 and marked as a trail by him and other pioneers in 1775: a major route for early settlers moving west.
- william webster — Daniel, 1782–1852, U.S. statesman and orator.
- winter holidays — a period of rest from work or studies taken in winter
- winter purslane — a plant, Montia perfoliata, native to western North America, of the purslane family, having edible, egg-shaped leaves and clusters of small, white flowers.
- withdrawal slip — a small paper form which has to be filled in before making a withdrawal of money from a bank, building society, etc
- wolverine state — Michigan (used as a nickname).
- wrestling match — sport: contention by grappling opponent
- yellow goatfish — a schooling goatfish, Mulloidichthys martinicus, inhabiting the Atlantic Ocean from Florida to Panama.