Crossword clues for One of the three R's. 7 letters:READINGOne of the three R's.RECYCLEOne of the three R's of eco-friendlinessRECYCLEOne of the three green R'sINITOne of three for J. R. R. Tolkien: Abbr.REUSEOne of the three R's for an environmentalistREUSEOne of the three R's of environmentalismREDUCEOne of the three R's of environmentalismRITHMETICOne of the three R's.RDGOne of the three R'sREADDo one of the three R'sREUSEOne of the three "green" R'sREUSESPractices one of the environmental three R'sREUSEOne of the environmental Three R'sREUSEOne of the eco-friendly three R's