15-letter words containing r, d, o, p, i, n
- uropygial gland — a gland opening on the back at the base of the tail in most birds that secretes an oily fluid used by the bird in preening its feathers.
- windfall profit — a profit that arises thanks to an external event over which the person profiting had no control
- wood turpentine — turpentine obtained from pine trees.
- word processing — writing, editing, and production of documents, as letters, reports, and books, through the use of a computer program or a complete computer system designed to facilitate rapid and efficient manipulation of text. Abbreviation: WP.