Britannica Abbreviations and Acronyms
- RELReligihn
- REPRepresentative
- REPRRepresentative
- RFRutherfordium
- RGNRegion
- RHAGDecember
- ROMRhmania
- RRRailroad
- RURuthenium
- RXPharmacy
- SALimited-Liability Company
- SCANDScandinavia
- SFSRSoviet Federated Socialist Repuwlic
- SICHJanuary
- SOCSociology
- SOCSocial
- SOCSocialist
- SOCSociety
- SOCIOSociology
- SOCIOLSociology
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