Look upRN orrn in Wiktionary, the free dictionary.

RN orRn may refer to:

• Rio Grande do Norte, Brazilian state (ISO 3166-2:BR code RN)
• Province of Rimini, Italy (ISO 3166-2:IT code)
• County Roscommon, Ireland (code)

• National Rally (France) (Rassemblement national), a far-right French political party
• Resistencia Nacional, a revolutionary socialist party in El Salvador
• Renovación Nacional orNational Renewal (Chile), a liberal conservative party in Chile
• Ruch Narodowy, a Polish far-right political party
• Fuerzas Armadas de la Resistencia Nacional, was the military arm of the National Resistance, a Salvadoran communist organization
• Resistencia Nicaragüense, Nicaraguan Contra rebels
• ''R.N.'', title of U.S. 37th PresidentRichard M. Nixon (1913-1994, served 1969-1974), book of memoirs, published 1978

• Radon, symbol Rn, a chemical element
• rn (newsreader), a Usenet news client
• Newline, represented as \r\n in certain operating systems
• Euclidean space, withn dimensions, denoted by${\displaystyle {\mathbf{\text{R}}}^n}$ or${\displaystyle {\mathbb{R}}^n}$
• Round nose, a type ofbullet
• Recurrent nova, a class of repeating cataclysmic variable stars

• Royal Navy, military branch on the seas and air of theUnited Kingdom, plus other "Royal Navy" armed forces ofCommonwealth of Nations such as theDominion of Canada and theCommonwealth of Australia
• Radio National, Australia
• Registered nurse, a licensed health care provider
• RN: the Memoirs of Richard Nixon, an autobiography of 37th U.S. PresidentRichard M. Nixon. (1913-1994, served 1969-1974), published 1978
• Registered Identification Number, a US FTC code used on clothing labels
• RN, then IATA code ofAir Horizons, a former French airline
• RN, then IATA code ofRayani Air, a former Malaysian airline
• Kirundi language (ISO 639-1: RN)

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