17-letter words containing t, e, a, s, l
- vestibular system — the sensory mechanism in the inner ear that detects movement of the head and helps to control balance
- vice-presidential — relating to a person who ranks immediately below the chief executive or head of state of a republic
- visible radiation — electromagnetic radiation that causes the sensation of sight; light. It has wavelengths between about 380 and 780 nanometres
- visitors' gallery — a balcony in a building such as a parliament or court where members of the public can sit
- wade-giles system — a system of Romanization of Chinese, devised by Sir Thomas Francis Wade (1818–95) and adapted by Herbert Allen Giles (1845–1935), widely used in representing Chinese words and names in English, especially before the adoption of pinyin.
- wall street crash — the dramatic collapse of share prices on the New York Stock Exchange in October 1929, an important factor in the early stages of the Depression
- wang laboratories — (body) Computer manufacturer, known for their office automation products and the Wang PC. Quarterly sales $208M, profits $3M (Aug 1994).
- war establishment — the full wartime complement of men, equipment, and vehicles of a military unit
- weather satellite — meteorological satellite.
- well-demonstrated — to make evident or establish by arguments or reasoning; prove: to demonstrate a philosophical principle.
- well-investigated — to examine, study, or inquire into systematically; search or examine into the particulars of; examine in detail.
- welsh nationalism — the political belief that Wales should be independent
- welsh nationalist — a person who believes that Wales should be independent
- welshman's button — an angler's name for a species of caddis fly, Sericostoma personatum
- western australia — a state in W Australia. 975,920 sq. mi. (2,527,635 sq. km). Capital: Perth.
- white-nationalism — white supremacy.
- wild sweet potato — man-of-the-earth.
- wireless operator — a radio operator
- yellowstone falls — a waterfall in NW Wyoming, in Yellowstone National Park on the Yellowstone River
- zebra swallowtail — a swallowtail butterfly, Papilio marcellus, having black and greenish-white stripes on the wings.
- zola technologies — (company) Producers of the Z simulation language.