14-letter words containing a, d, i, t, u, s
- urban district — a minor administrative division in England, Wales, and Northern Ireland, with local self-government by a district council, but lacking the charter of a borough.
- Ústí nad labem — a port in the Czech Republic, on the Elbe River: textile and chemical industries. Pop: 95 000 (2005 est)
- vanadium steel — an alloy steel containing vanadium.
- vapour density — the ratio of the density of a gas or vapour to that of hydrogen at the same temperature and pressure