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The Collaborative International Dictionary

Rn \Rn\, n. (Chem.) the symbol for the chemical element radon.


init. right now#English.

Rn (newsreader)

rn (short for Read News) is a news client (or 'newsreader') written by Larry Wall and originally released in 1984. It was one of the first newsreaders to take full advantage of character-addressable CRT terminals ( vnews, by Kenneth Almquist was first). Previous newsreaders, such as readnews, were mostly line-oriented and designed for use on the printing terminals which were common on the early Unix minicomputers where the Usenet software and network originated. Later variants of the original rn program included rrn, trn, and strn.


RN or Rn may stand for:

  • rn (newsreader), a Usenet news client
  • - the code for County Roscommon, Ireland
  • ''RN: the memoirs of [US President] Richard Nixon
  • Air Horizons, former airline, IATA code
  • Resistencia Nacional, El Salvador political party
    • Fuerzas Armadas de la Resistencia Nacional, military arm of El Salvador party
  • Province of Rimini's ISO 3166-2:IT code
  • Radio National, Australia
  • Radon (symbol Rn), a chemical element
  • Registered Identification Number, US FTC code used on clothing labels
  • Registered nurse
  • '' or National Renewal (Chile), a Chilean political party

  • Rio Grande do Norte, ISO 3166-2:BR code of the Brazilian state
  • Roman Numerals
  • Round nose, a type of bullet
  • Royal Navy, UK
  • Ruch Narodowy, a Polish far-right political party
  • Euclidean space with n dimensions, denoted by R or R
  • Newline, represented as \r\n in certain operating systems
  • "Right now" in e-mail shorthand