15-letter words containing w, e, a, s, l, i
- 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.
- wallpaper music — music that is pleasant but not interesting, so people do not pay much attention to it
- 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.
- wheelchair user — a person who is unable to walk through injury, illness, etc and relies on a wheelchair to move around
- 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.
- 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.