15-letter words containing p, o, s, l
- unsportsmanlike — a man who engages in sports, especially in some open-air sport, as hunting, fishing, racing, etc.
- up one's sleeve — secretly ready
- upperclasswoman — An upperclasswoman is a junior or senior student in a high school, college, or university.
- vespertilionine — of or relating to the bats of the subfamily Vespertilioninae, common in temperate regions and including most familiar species.
- vicar apostolic — Roman Catholic Church. a titular bishop serving either in a district where no episcopal see has been established, or in one where the succession of bishops has been interrupted.
- viper's bugloss — the blueweed.
- visible exports — goods sold to a foreign country or countries
- visible imports — products that a company or country buys from other countries
- washing-up bowl — plastic bowl used for washing dishes
- washington palm — a palm tree, Washingtonia filifera, of California and Florida, having large fan-shaped leaves and small black fruits
- well-positioned — condition with reference to place; location; situation.
- west hartlepool — a former borough, now part of Hartlepool, in Cleveland County, in NE England, at the mouth of the Tees.
- white corpuscle — white blood cell.
- wilson's petrel — a small petrel, Oceanites oceanicus, that breeds in the Southern Hemisphere but ranges into the North Atlantic and Pacific oceans.
- work oneself up — become overwrought
- xenotransplants — Plural form of xenotransplant.
- 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.
- zoophysiologist — an expert in zoophysiology
- zygophyllaceous — belonging to the Zygophyllaceae, the caltrop family of plants.