R and R - definition and synonyms

noun [uncountable] mainly American 

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/ˌɑːr ənd ˈɑː(r)/
  1. rest and relaxation
    1. a.
      informal a period of time when you do not work and can relax and have a holiday
    2. b.
      a holiday that people in the armed forces get during a war or after a long period of hard work