RN

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

Rn (chem)

Radon

• oil-trees
• oil well
• oil wells
• oily
• oily fish
• oin-
• oink
• oinked
• oinking
• oinks
• oino-
• oint
• ointed
• ointing
• ointment
• ointments
• oints
• Oireachtas
• Oirish
• Oirishness
• OIRT
• oiticica
• oiticicas
• Ojibwa
• Ojibwas