The meaning of the Acronym RN is...

RN is

• Really Naughty

More Meanings For RN:

• Record Number
• Nota Bene Xpl program
• Reference Name
• Render Node
• Randys Notation
• Real Network
• Real Nice
• Real Nut
• Reflection Nebulosity
• Radon
• Residue Number
• Renumbering
• Recursive Normalization
• Random Number
• Response Numerical

RN is also in:

• Astronomy
• Chat
• Chemistry
• Databases
• File Extensions
• General
• Mathematics
• Networking