RN

1. Registered Nurse (N American)
2. Republic of Niger (also IVR)
3. Royal Navy

Rn (chem)

Radon

• retro-
• Retro
• retroact
• retroacted
• retroacting
• retroaction
• retroactions
• retroactive
• retroactive inhibition
• retroactive interference
• retroactively
• retroactivities
• retroactivity
• retroacts
• retrobulbar
• retrocede
• retroceded
• retrocedent
• retrocedes
• retroceding
• retrocession
• retrocessionaire
• retrocessions
• retrocessive
• retrochoir