RD

• ''Reader's Digest'', a United States general-interest magazine • Real Drive, an anime by Production I.G • RD (group), a British girl group also known as Ruff Diamondz • Rilindja Demokratike, an Albanian newspaper • Razor Dolls, an online blogging group based on SpaceHey and Instagram • Rainbow Dash, one of the six main characters of My Little Pony: Friendship Is Magic ==People==

• R. D. Blackmore, English novelist • R. D. Burman, Indian musician • R. D. Laing, British psychiatrist • R. D. Matthews, Texan organized crime figure • R.D. Riccoboni, painter ==Businesses and organizations==

• Pratt & Whitney Rocketdyne, a United States rocket engine company • Ryan International Airlines (IATA airline designator RD) • USDA Rural Development, an agency of the United States Department of Agriculture == Language ==

• ‹rd›, a Latin alphabet digraph of a retroflex stop in Aboriginal Australian languages • rd, an English-language ordinal indicator, for ordinal numbers ending in "third" (e.g. 3rd, 23rd, 33rd) ==Military==

• Emblem for Reserve Force Service or Reserve Decoration, an award of the South African National Defense Force Military Reserve • Repair Depot (e.g., 6 Repair Depot), in military use • Reserve Decoration, an award for service in the Royal Navy Reserve of the United Kingdom == Positions and titles ==

• Resident director, a common staff position at universities and colleges with on-campus housing • Rural dean, an ecclesiastical title in Anglicanism • Reverendo Don, the Italian written form of address for Catholic priests, equivalent to the English “Reverend Father” ==Science, technology, and mathematics==

Computing • Rata Die, a calendar-independent system to assign numbers to calendar dates • Rate–distortion optimization, a decision algorithm used in video compression • Rider (software), a cross-platform IDE intended for C# and .NET development • rmdir, a shell command meaning "remove directory" • Route distinguisher, in data networking, a concept in Multiprotocol Label Switching • Ruby Document format, a markup language used for documentation of Ruby programs Health and medicine • Restrictive dermopathy • Reading disability, a condition resulting primarily from neurological factors • Registered Dietitian, an expert in dietetics • Retinal detachment, a disorder of the eye • Risk difference, a term in epidemiology related to absolute risk reduction Other uses in science, technology, and mathematics • Rd, the mathematical domain of real numbers • Reaktivniy Dvigatel, a Soviet Russian prefix for an engine design series (literally, "reactive engine"; see RD-8 for example) • Research and development • Rutherford (unit), a unit of radioactivity == Transportation ==

• Red Line (Washington Metro) • Richmond and Danville Railroad ==Other uses==

• Dominican Republic, a Caribbean country • Dominican peso (currency symbol: RD$) • rd, a round or cartridge of ammunition • Recurring deposit • Regional district • Rural delivery service, mail delivery in what are traditionally considered rural areas in the United States == See also ==