- RA
- races
- ranges
- reactor
- rear/raise
- record breaker
- reply cards
- research assistant
- Research Park, MU
- Research Reactor Center, University of Missouri
- research university
- Residence on Francis Quadrangle
- résumé
- Reynolds Alumni Center
- Reynolds Journalism Institute
- Reynolds Journalism Institute, Donald W.
- risk taker (noun)
- risk-taking (object, adjective)
- RJI
- rock ‘n’ roll