24-letter words containing d, r, e, a, n, o
- van allen radiation belt — a broad, doughnut-shaped region surrounding the earth and composed of high-energy electrons and protons trapped in the earth's magnetic field at heights between c. 400 km (c. 250 mi) and c. 64,370 km (c. 40,000 mi)
- verrazano-narrows bridge — a suspension bridge connecting Brooklyn and Staten Island in New York City. 4260-foot (1298-meter) center span, the longest in North America.
- video cassette recording — a recording made using a tape recorder for vision and sound signals using magnetic tape in closed plastic cassettes: used for recording and playing back television programmes and films
- virtual storage extended — (operating system) (VSE, formerly DOS/VSE) is a multitasking, IBM 370-architected operating system similar to Multiple Virtual Storage (MVS). VSE run jobs in partitions rather than address spaces, and uses POWER for input/output rather than JES, but is largely similar to MVS. Subsequent VSE/ESA releases gave VSE the XA-370 channel architecture, 31-bit virtual and real storage support, and data spaces. VSE is the IBM operating system on one-third of installed IBM 4381s and a significant proportion of IBM 9370s as well. It offers transaction processing and batch processing capabilities well beyond Virtual Machine's current capabilities, and has a close affinity with MVS.
- voluntary aid detachment — (in World War I) an organization of British women volunteers who assisted in military hospitals and ambulance duties
- von willebrand's disease — an inherited autosomal recessive disease in which abnormally slow coagulation of blood may lead to spontaneous bleeding, excessive bleeding following an injury, and heavy menstrual flow.
- work breakdown structure — (project) (WBS) A division of a project into tasks and subtasks. The tasks are numbered to indicate their relationship to each other. WBSs are indespensible for project planning, particularly when estimating time and resource requirements. Some industries use established work breakdown structure systems for billing and reporting purposes.
- world trade organization — The World Trade Organization is an international organization that encourages and regulates trade between its member states. The abbreviation WTO is also used.
- you aren't gonna need it — (programming) (YAGNI) A motto of extreme programming expressing the principle that functionality should not be implemented until it is needed. The traditional waterfall model makes it difficult to add features after the specification has been signed off, tempting the specifier to add features that may never be used but which take time to program, debug, test and document.