15-letter words containing o, c, t, a, h
- without a hitch — smoothly, easily, and successfully
- worcester china — porcelain articles made in Worcester (England) from 1751 in a factory that became, in 1862, the Royal Worcester Porcelain Company
- wreathed column — a column having a twisted or spiral form.
- xylotypographic — involving or pertaining to xylotypography
- youth orchestra — an orchestra that is made up of young musicians
- zoophytological — of or relating to zoophytology