English abbreviations from r to r0
- R ((as a prefix:) restricted airspace)
- R. (Responsorium ("Responsory" Breviary))
- R&A (Reliability and Availability)
- R&B (Rhythm and Blues)
- R&D (Research & Development)
- R/EW (Radar/ Electronic Warfare)
- R&O (Repair and Overhaul)
- R/O (Receive Only)
- R/P (Reserve on Production)
- R&R (Rest & Relaxation)
- R&S (Reconnaissance & Surveillance)
- R/S (Respectfully Submitted)
- r(s) (ring(s))
- r&w (read and write)
- R0 (Record zero)