13-letter words containing a, l, s, t, o
- voluntaristic — Philosophy. any theory that regards will as the fundamental agency or principle, in metaphysics, epistemology, or psychology.
- wafflestomper — a shoe with a thick sole resembling a waffle
- walter piston — Walter, 1894–1976, U.S. composer.
- watch oneself — to be careful, cautious, or discreet
- water soldier — an aquatic plant, Stratiotes aloides, of Europe and NW Asia, having rosettes of large leaves and large three-petalled white flowers: family Hydrocharitaceae
- water-soluble — capable of dissolving in water.
- watercolorist — a pigment for which water and not oil is used as the vehicle.
- well-assorted — properly matched and suited to one another
- wellingtonias — Plural form of wellingtonia.
- west columbia — a town in central South Carolina.
- whitlow grass — any of various plants of the genera Draba and Erophila, once thought to cure whitlows: family Brassicaceae (crucifers)
- wholistically — Alternative form of holistically.
- whoremasterly — of or relating to the character of a whoremaster
- winston-salem — a city in N North Carolina.
- xiphiplastron — the fourth lateral plate of a turtle's plastron
- yellow streak — a trait of cowardice in a person's character.
- yellowthroats — Plural form of yellowthroat.
- zygodactylous — Also, zygodactylous. (of a bird) having the toes of each foot arranged in pairs, with two toes in front and two behind.