10-letter words containing h, y, a
- xylanthrax — (archaic) Wood coal or charcoal, distinguished from mineral coal; lignite.
- xylographs — Plural form of xylograph.
- xylography — The art of making woodcuts or wood engravings, especially by a relatively primitive technique.
- xylophagan — an insect in the Xylophaga or Xylophagi that eats wood
- yacht club — an organization of yachtsmen and yachtswomen for the purpose of encouraging and directing the sport of yachting.
- yacht race — a sailing race for yachts
- yad vashem — the official authority in Israel for the commemoration of the Holocaust and its victims.
- yan xishan — Yen Hsi-shan.
- yarborough — a hand in which no card is higher than a nine.
- yarkant he — a river in NW China, flowing NE and joining the Aksu River to form the Tarim River. 500 miles (805 km) long.
- yellowhead — Chaetodon xanthocephalus, the yellowhead butterflyfish.
- yesmanship — An atmosphere in which people claim to agree with leadership for political reasons, even when they don't actually agree with leadership.
- yottahertz — one septillion (10 24) hertz. Abbreviation: YHz.
- youthquake — (informal) A noticeable shift in society or culture in response to the activities or tastes of younger members of the culture.
- yucca moth — any of several white moths of the genus Tegeticula that pollinate the yucca plant, the larvae of which develop in the ovary of the plant, consuming some of the seeds.
- zaporozhye — a city in SE Ukraine, on the Dnieper River.
- zoanthropy — a mental disorder in which one believes oneself to be an animal.
- zootherapy — the use of therapeutic drugs derived from animals
- zygobranch — a creature belonging to the Zygobranchia genus, which includes molluscs with paired gills
- zythepsary — (rare) A brewery.