English abbreviations from rqn to rr
- RQN (Residents for Quality Neighborhoods)
- RQP (Right Question Project, Inc.)
- RQQ ((celestial object) Radio Quiet Quasar a quasar that produces weak radio emission)
- RQR (Rapid Quote Response)
- RQS (Rescue Squadron (formerly ARS))
- RQT (Rapid Query Tool)
- RQW (Rate Quotation Workbook)
- RQY (Relative Quantum Yield)
- RR (Recoilless rifle)
- RR. (Rerum ("Of Things, Subjects" e.g. SS. RR. Ital., Writers on Italian [historical] subjects); Regesta)