16-letter words containing w, a, t, l
- willow ptarmigan — a ptarmigan, Lagopus lagopus, of arctic and subarctic regions of the New and Old Worlds, having brown, mottled plumage in summer and white plumage in winter.
- windchill factor — an estimated measurement of the cooling effect of air and wind, esp. when applied to the loss of body heat from exposed skin; chill factor
- windfall profits — Windfall profits are excessive profits with a non-business cause such as a natural disaster.
- with clean hands — innocently
- woman of letters — a woman engaged in literary pursuits, especially a professional writer.
- woodland culture — a long pre-Columbian tradition characterized by the corded pottery of a hunting and later agricultural people of the eastern U.S. noted for the construction of burial mounds and other structures and dating from c1000 b.c. to a.d. 1700.
- woolly manzanita — a tree or shrub, Arctostaphylos tomentosa, of the heath family, common from British Columbia to California, having broad leaves, with the underside covered with white hairs, and white flowers.
- world federalist — a promoter or supporter of world federalism.
- worth one's salt — a crystalline compound, sodium chloride, NaCl, occurring as a mineral, a constituent of seawater, etc., and used for seasoning food, as a preservative, etc.
- wrongful trading — the act of allowing a company to continue trading when its insolvency is inevitable
- yellowfin (tuna) — a tuna (Thunnus albacares) with yellow fins and a yellow stripe on each side, important as a game and food fish and found worldwide in warm seas
- yellowstone lake — a lake in NW Wyoming, in Yellowstone National Park. 20 miles (32 km) long; 140 sq. mi. (363 sq. km).