15-letter words containing s, a, n, k, u
- ust-kamenogorsk — a city in E Kazakhstan, on the Irtysh River.
- walnut husk fly — any of several fruit flies, as Rhagoletis completa, the larvae of which feed on and discolor walnut husks.
- yorke peninsula — a peninsula in S Australia between Spencer Gulf and the Gulf of St. Vincent. 160 miles (257 km) long and 20–35 miles (32–56 km) wide.