19-letter words containing un
- waste disposal unit — an electrically operated fitment in the plughole of a kitchen sink that breaks up food refuse so that it goes down the waste pipe
- welsh mountain pony — a small sturdy but graceful breed of pony used mostly for riding, originally from Wales
- west dunbartonshire — a council area of W central Scotland, on Loch Lomond and the Clyde estuary: corresponds to part of the historical county of Dunbartonshire; part of Strathclyde Region from 1975 to 1996: engineering industries. Administrative centre: Dumbarton. Pop: 92 320 (2003 est). Area: 162 sq km (63 sq miles)
- wire-wound resistor — a resistor consisting of a wire with a high resistance wound in a coil around a cylindrical core of insulating material.
- wraparound mortgage — a mortgage, as a second mortgage, that includes payments on a previous mortgage that continues in effect.
- yablonovy mountains — a mountain range in Siberia. Highest peak: 1680 m (5512 ft)
- yellowtail flounder — a righteyed flounder, Limanda ferruginea, inhabiting waters along the Atlantic coast of North America, having a yellowish tail fin and rusty-red spots on the body: once commercially important, now greatly reduced in number.
- young conservatives — the youth section of the United Kingdom Conservative Party until 1998