15-letter words containing d, i, s, m
- unmitigatedness — the state of being unmitigated
- untransmigrated — not transmigrated; not transferred or caused to be transferred
- usman dan fodio — 1754–1817, African mystic and revolutionary leader, who created a Muslim state in Nigeria
- villeda morales — Ramón [rah-mawn] /rɑˈmɔn/ (Show IPA), 1909?–71, Honduran diplomat and statesman: president 1957–63.
- volume discount — a reduced price for goods given by a seller on the basis that the buyer buys a large quantity
- west des moines — a city in S central Iowa, near Des Moines.
- wind instrument — a musical instrument sounded by the breath or other air current, as the trumpet, trombone, clarinet, or flute.
- women's studies — a program of studies concentrating on the role of women in history, learning, and culture.
- x window system — (operating system, graphics) A specification for device-independent windowing operations on bitmap display devices, developed initially by MIT's Project Athena and now a de facto standard supported by the X Consortium. X was named after an earlier window system called "W". It is a window system called "X", not a system called "X Windows". X uses a client-server protocol, the X protocol. The server is the computer or X terminal with the screen, keyboard, mouse and server program and the clients are application programs. Clients may run on the same computer as the server or on a different computer, communicating over Ethernet via TCP/IP protocols. This is confusing because X clients often run on what people usually think of as their server (e.g. a file server) but in X, it is the screen and keyboard etc. which is being "served out" to the applications. X is used on many Unix systems. It has also been described as over-sized, over-featured, over-engineered and incredibly over-complicated. X11R6 (version 11, release 6) was released in May 1994. See also Andrew project, PEX, VNC, XFree86.