RU
RU can denote Russia or the Russian language, and is also the campus shorthand for several universities such as Rutgers, Rockefeller and Rhodes.
Medical
Miscellaneous
Resonance Units
Reduced Units
Radiance Unit
Relative Units
Ramp Up
Resistance Units
Roussel Uclaf
Russian UK
Release Update
Community
Governmental
Replaceable Unit
Request Unit
Ready Units
Response Unit
Range Update
Runs Up
Responsibility Unit
Remote Unit
Release Unit
Rescue Unit
Academic & Science
Radius of Uranus
Rice University
Rutgers University
Relative Uncertainty
Rockefeller University
Rhodes University
Rowan University