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RA (plural RAs)

  1. (medicine) Initialism of rheumatoid arthritis.
  2. (anatomy, medicine) Initialism of right atrium.
  3. (military) Initialism of rear admiral, a rank in the Royal Navy.
  4. Initialism of Royal Academician, a member of the Royal Academy.
  5. Initialism of resident assistant, a trained student leader, within a college or university, who is given the responsibility of supervising students living in a residence hall.
  6. Initialism of Restricted Area, an area that only authorized people can enter. See also Exclusion zone.
  7. (aviation) Initialism of resolution advisory (a type of TCAS warning).
  8. Initialism of rescue ambulance.

See also[edit]

Proper noun[edit]


  1. Initialism of Royal Academy, the Royal Academy of Arts is an art institution based in London, England.
  2. Initialism of Royal Artillery, a regiment in the British Army.
  3. Initialism of Republic of Armenia.
  4. Initialism of republican army, most often the Provisional IRA.
    Up the RA!




  1. Initialism of rahmatu 'llahi alayh, that is Arabic رحمة الله عليه(God have mercy on him), a eulogy used by Muslims in reference to honoured deceased.
    Muhammad Ali Jinnah (RA) is known as the Father of Pakistan.

Further reading[edit]