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Russian (Regional » Language Codes (2 Letters))

* Russian Federation (Regional » Countries)

* Are You .... (Internet » Chat)

* Ruthenium (Academic & Science » Chemistry)

* Ruthenium (Academic & Science » Electronics)

* Rutgers University (Academic & Science » Universities)

* Rice University (Academic & Science » Universities)

* Rack Unit (Governmental » Military)

* Rack Unit (Academic & Science » Electronics)

* Radio Userland (Community » Media)

* Resonance Units (Miscellaneous » Unit Measures)

* Runs Up (Governmental » Transportation)

* Relative Units (Miscellaneous » Unit Measures)

* Request Unit (Governmental » Military)

* Replaceable Unit (Governmental » Military)

* Read Uncommitted (Computing » Assembly)

* Reader User (Computing » General)

* Ready Units (Governmental » Military)

* Rhythmic Unit (Community » Music)

* Routine Urinalysis (Medical » Physiology)

* Responsibility Unit (Governmental » Police)

* Rhodes University/Rhodes-Universiteit (Regional » African)